About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. Our Engineering team built the world's largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 65 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We're looking for an experienced Principal Software Engineer to join our team.   This is a hybrid role, reporting in the San Jose office 3 days a week. Reporting to the Sr. Director of Engineering, you'll be responsible for: 

Developing high-quality, secure, and reliable software that is scalable, performant, reusable, and extensible Designing and implementing scalable, high-availability distributed systems, microservices, and APIs (RESTful and SDKs) using technologies like Kafka and Elasticsearch Collaborating with front-end engineers to create user-friendly, responsive applications and provide endpoints that support intuitive interfaces Optimizing system performance, monitoring system health, troubleshooting issues, and exhibiting a DevOps mindset by working on continuous integration, provisioning, deployment, and version control Mentoring junior engineers and new developers to enhance team competency and growth.

What We're Looking for (Minimum Qualifications) 

12+ years of experience in software application development, including expertise in Java and Spring frameworks like Spring Boot, Spring Cloud, and Spring Security Extensive experience in cloud computing with AWS, GCP, or other cloud providers, and containerization using Docker and Kubernetes Proven expertise in designing, developing, and deploying scalable distributed systems with technologies such as Kafka and DynamoDB Proficient in version control systems like Git and test-driven development (TDD), ensuring high-quality software delivery Strong adaptability and ability to work independently in a fast-paced Agile environment with minimal supervision

What Will Make You Stand Out (Preferred Qualifications)

Experience with data analysis and data analytics tools Experience with NoSQL databases, messaging services and in-memory cache is strongly preferred

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Zscaler’s salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training. The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits.Base Pay Range$182,000 - $260,000 USDAt Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now:

About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. Responsibilities: We seek a seasoned Principal - UI, with a strong front-end engineering background to lead a high-performing engineering team working on the development of common UI frameworks, component libraries, and cutting edge user experiences. This role offers the opportunity to influence the direction of user experience of our cybersecurity products and significantly impact our global customer base.  This is a hybrid role reporting into our San Jose, CA office 3 days a week.  In this role, you would:

Lead the development, maintenance, and architectural design of scalable UI components for a design system using ReactJS/TypeScript. Collaborate with cross-functional teams (design, product, engineering) to define the design system's vision, integrate components, and drive adoption. Mentor engineers, ensure high code quality through reviews and standards, and implement robust testing strategies. Continuously improve UI component performance, accessibility, and usability, staying current with front-end trends and technologies. Establish and maintain comprehensive documentation for the design system.

What We're Looking for (Minimum Qualifications):

Minimum of 10+ years of professional experience in UI engineering, with a focus on ReactJS Extensive experience developing reusable UI components and frameworks using ReactJS/JavaScript Strong proficiency in HTML (semantic), CSS (including responsive design and box model), and mobile-first development Solid understanding of UI/UX design principles, with experience collaborating with designers on data-heavy web applications Proficiency with front-end build tools, package managers, monorepos, and version control systems (e.g., Nx, npm, Git)

What Will Make You Stand Out (Preferred Qualifications):

Bachelor's or Master's degree in Computer Science, Engineering, or a related field Experience with performance optimization, comprehensive testing methodologies, clear documentation, and automation for high-quality, reusable UI components Knowledge of data visualization libraries (e.g., D3.js) and advanced problem-solving skills for complex technical challenges

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   Zscaler’s salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training. The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits.Base Pay Range$182,000 - $260,000 USDAt Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now:

About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We are looking for an experienced Senior Staff Software Development Engineer to join our Backend, API team. Reporting to the Senior Director, Software Development Engineering, you'll be responsible for:

Developing high-quality software that is performant, scalable, reusable, extensible, secure, supportable and reliable Writing microservices, develop and extend in-house APIs, write client-side code which interacts with other APIs (RESTful and SDKs) Working with front-end engineers to understand user requirements and provide endpoints that help accomplish building appealing interfaces. Developing and maintain a scalable web and responsive applications Exhibiting DevOps mindset - Work on continuous integration, including provisioning, deployment, testing, and version control of the software

What We're Looking for (Minimum Qualifications)

Passionate software developer with 8+ years of hands-on software application development experience Experienced in cloud computing (AWS, GCP) with expertise in Java and Spring frameworks (Webflux, Cloud, Security) Containerization experience with applications deployed on Docker or Kubernetes Demonstrated knowledge of Distributed and Scalable systems Proficient in SQL, relational databases, version control (Git), and TDD

What Will Make You Stand Out (Preferred Qualifications)

Experience with at least one popular JavaScript framework such as Angular, React etc Experience with data analysis and data analytics tools Experience with NoSQL databases, messaging services, in-memory cache and DynamoDB is a big advantage

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LI-SK3At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure.

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now:

About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We're looking for an experienced Senior Staff Engineer to join our Shared Platform Services team. Reporting to the Director, Software Engineering, you'll be responsible for:

Developing high-quality software that is performant, scalable, reusable, extensible, secure, supportable, reliable APIs Writing microservices, develop and extend in-house APIs, write client-side code which interacts with other APIs (RESTful and SDKs) Working with front-end engineers to understand user requirements and provide endpoints that help accomplish building appealing interfaces Exhibiting DevOps mindset - Work on continuous integration, including provisioning, deployment, testing, and version control of the software Participating in strategic contributions like system design, and guiding long-term architecture

What We’re Looking For (Minumum Qualifications)

Passionate software developer with 10+ years of hands-on software application development experience Strong working experience with Java and Spring frameworks, including Spring Boot, Spring Cloud, Spring Security, and Quarkus, ensuring robust and scalable application development Containerization experience with applications deployed on Docker or Kubernetes using AWS, GCP or other cloud providers  Proven expertise in building distributed, cloud-native applications using Dapr and Kubernetes, with a focus on scalability and reliability Ability to quickly adapt & independently work in a fast-paced Agile environment with minimum supervision

What Will Make You Stand Out (Preferred Qualifications)

Knowledge about Docker/Kubernetes and container infrastructure would be a plus Comfortable switching between languages such as Java, Go, Python, or others based on project needs Hands on experience in writing Gitlab pipelines

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LI-AC10At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure.

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now:

What you’ll be doing (i.e. job duties):

• Build, improve, and operate backend developer productivity infrastructure services and systems.
• Design scalable, fault-tolerant solutions to novel problems with modern cloud technology and industry best practices.
• Work with engineers and leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Provide stellar customer support to our internal engineers.

What we look for in you:

• You have at least 5+ years of experience in software engineering.
• You’ve designed, built, scaled, and operated large scale, high throughput infrastructure.
• You write high-quality, well-tested code to meet the needs of your customers.
• Strong problem solving skills and ability to identify problems, determine their root cause, and see them through to solution.

Nice to Haves:

• Golang, Ruby, AWS
• Prior experience with building on and operating GitHub/GitHub Actions

Job #: GPBE05US

*Answers to crypto-related questions may be used to evaluate your onchain experience

#LI-Remote

Apply Now:

About Us

Re7 Capital is a London-based cryptoasset investment firm, leveraging our deep crypto network and proprietary data infrastructure to drive investment decisions across various DeFi and alpha strategies. Through Re7 Labs, we also collaborate with leading projects and blockchains to design DeFi ecosystems, provide on-chain risk curation, and deliver vault management services.

Our team combines expertise in investment management, data science, and crypto. To support our continued growth, we are seeking a motivated Full Stack Web Developer to join our engineering team. Reporting directly to the Head of Technology, you will take full ownership of our dApps, used to interact with our vault smart contracts.

Responsibilities

• Develop and maintain responsive, user-friendly front-end interfaces using React, Next.js, Vue or similar frameworks.
• Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi.
• Support wallet integrations including MetaMask, Argent X, and Braavos.
• Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies.
• Collaborate with blockchain engineers to interact with smart contracts and on-chain data.
• Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data.
• Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring.
• Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows.
• Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure.
• Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management.
• Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments.
• Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements.
• Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications.

Requirements

• Proficiency in JavaScript/TypeScript and PHP.
• 5+ years of experience in web development, including 3+ years in dApp development.
• Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts.
• Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows.
• Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging.
• Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment.
• Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager.
• Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices.
• Experience with front-end frameworks (React, Next.js, Vue, etc.)
• Comfortable working in Linux environments and using Git for version control.
• Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve).
• Awareness of and ability to support Whisk infrastructure and security requirements.
• Basic knowledge of HTML5, CSS3, and animation techniques (e.g., transitions, keyframes, scroll-triggered effects), with the ability to integrate them into PHP-rendered views or templating engines.

Benefits

• A dynamic, collaborative, and highly technical work environment.
• Opportunities for professional growth in a rapidly evolving industry.
• Remote-first setup with regular opportunities to meet the team in person.
• Competitive compensation package.

Application Process

Please submit the following:

• Your resume
• A cover letter explaining your interest in the role
• Your response to the following technical challenge:
• Challenge: Describe a high-level architecture and solution for a dApp that supports both EVM and non-EVM wallets (e.g., MetaMask and Braavos). Include considerations for wallet detection, abstraction, and secure transaction signing.

We are seeking a talented Middle / Senior Ethereum Developer with a deep understanding of financial markets and experience in trading to join our client team.

As an Ethereum Developer, you will be responsible for developing and maintaining smart contracts and decentralized applications (DApps) on the Ethereum blockchain. Your expertise in financial markets, combined with your knowledge of key protocols such as Pendle, CurveFi, 1inch, AaveV3, Morpho, will be instrumental in creating innovative solutions for their platform.

• Design, develop, and deploy smart contracts and DApps on the Ethereum blockchain.

• Collaborate with cross-functional teams to gather requirements and implement efficient and secure solutions.

• Stay up-to-date with the latest developments in Ethereum and decentralized finance (DeFi) to leverage cutting-edge technologies and protocols.

• Integrate and interact with various DeFi protocols such as Pendle, CurveFi, 1inch, AaveV3, Morpho

• Write clean, well-documented, and efficient code to ensure the reliability and scalability of our applications.

• Conduct thorough testing and debugging to identify and resolve any issues or vulnerabilities.

• Optimize smart contracts and DApps for gas efficiency and cost-effectiveness.

• Continuously monitor and improve the performance and security of the Ethereum-based systems.

• Provide technical guidance and mentorship to junior developers when required.

Requirements:

• Strong proficiency in Solidity programming language and experience with Ethereum development tools (Foundry, Hardhat etc).

• In-depth knowledge of financial markets, trading strategies, and investment principles.

• Familiarity with key DeFi protocols such as Pendle, CurveFi, 1inch, AaveV3, Morpho.

• Experience in designing and implementing secure smart contracts and DApps.

• Solid understanding of blockchain fundamentals and Ethereum’s architecture.

• Knowledge of other blockchain platforms (Ethereum, Base etc.).

• Proficient in using Git for version control and collaborative development.

• Ability to work independently and in a team environment, collaborating effectively with other developers, designers, and stakeholders.

• Strong problem-solving skills and attention to detail.

• Excellent communication and documentation skills.

Preferred Qualifications:

• Knowledge of privacy-preserving technics & modern cryptography

• Experience of using protocols for applied cryptography (zkSNARK, zkSTARK, etc)

• Familiarity with automated testing frameworks for smart contracts

• Contributions to open-source projects in the Ethereum ecosystem

  Interview stages:

• Interview with a recruiter

• Interview with a Tech lead

• Interview with a CTO on general technical topics

• Сulture fit interview

We’ll review your CV and everything you have sent us within five working days. If your background meets our needs — we’ll set up a call to get to know each other better. Otherwise, we aren’t quite ready for you at this moment. But no worries — our journey has just started, and we’d love to stay in touch as our team grows and more opportunities emerge. We wish you the best of luck with your aspiration.

Apply Now:

  📌Backend Developer – Java, Spring & Kafka (Full-time Contract, Remote) Kick off your next career move with Launchpad! We're looking for a technically curious backend developer ready to make an impact in a collaborative, clean-code-driven environment. If you’re passionate about building scalable services, exploring domain-driven design, and working on distributed systems, this might be the opportunity for you.

🗓 Start date: August 2025📆 Contract type: Contractor, indefinite🌐 Work hours: Monday to Friday, 7.30 to 16.30 PST - 100% Remote

🛠️ What You’ll Be Doing

Designing and implementing backend services in Java and Spring Boot to power scalable, high-performing systems

Applying Hexagonal Architecture and clean code principles to ensure long-term maintainability and modularity

Building and consuming RESTful APIs, focusing on versioning and developer-friendly design

Integrating asynchronous processes using Apache Kafka in a distributed microservices architecture

Collaborating with infrastructure engineers to deploy services using Terraform on Microsoft Azure

Participating in code reviews and applying software craftsmanship in a team that values continuous learning

✅ What You Need to Succeed Must-haves

2–4 years of experience as a Java backend developer

Solid hands-on experience with the Spring Boot ecosystem (e.g., Spring Web, Spring Data JPA, Spring Security)

Proven ability to design, consume, and document RESTful APIs

Comfort working with relational databases such as MySQL or PostgreSQL

Confident writing and maintaining unit and integration tests

Experience working with Git and following modern version control workflows

Strong communication and collaboration skills in distributed teams

Nice-to-haves

Familiarity with Hexagonal Architecture (Ports & Adapters)

Experience applying Domain-Driven Design (DDD) and CQRS

Knowledge of Apache Kafka for event-driven architectures

Exposure to non-relational databases like Redis

Experience deploying services on Azure using Terraform

🧭 Our Recruitment Process Here’s what to expect from our candidate-friendly interview process:

Initial Interview – 60 minutes with our Talent Acquisition Specialist

Culture Fit – 30 minutes with our Team Engagement Manager

Technical Interview – 60 minutes with the Team and Hiring Manager, general overview of your expertise

Final Interview - 60 minutes with the Team and Hiring Manager, exploring your technical and problem-solving skills

🌟 Why Join Launchpad? We believe that great work starts with great people. At Launchpad, we offer:

💻 Fully remote work with hardware provided

🌎 Global team experience with clients in Northamerica

💸 Competitive USD compensation

📚 Training and learning stipends

🌴 Paid Time Off (vacation, personal, study)

🧘‍♂️ A culture that values autonomy, purpose, and human connection

✨ Ready to make your mark? Apply now and be part of something exciting.   

Apply Now:

About Us

Re7 Capital is a London-based cryptoasset investment firm, leveraging our deep crypto network and proprietary data infrastructure to drive investment decisions across various DeFi and alpha strategies. Through Re7 Labs, we also collaborate with leading projects and blockchains to design DeFi ecosystems, provide on-chain risk curation, and deliver vault management services.

Our team combines expertise in investment management, data science, and crypto. To support our continued growth, we are seeking a motivated Full Stack Web Developer to join our engineering team. Reporting directly to the Head of Technology, you will take full ownership of our dApps, used to interact with our vault smart contracts.

Responsibilities

• Develop and maintain responsive, user-friendly front-end interfaces using React,Next.js, Vue or similar frameworks.
• Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi.
• Support wallet integrations including MetaMask, Argent X, and Braavos.
• Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies.
• Collaborate with blockchain engineers to interact with smart contracts and on-chain data.
• Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data.
• Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring.
• Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows.
• Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure.
• Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management.
• Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments.
• Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements.
• Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications.

• Proficiency in JavaScript/TypeScript and PHP.
• 5+ years of experience in web development, including 3+ years in dApp development.
• Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts.
• Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows.
• Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging.
• Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment.
• Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager.
• Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices.
• Experience with front-end frameworks (React, Next.js, Vue, etc.)
• Comfortable working in Linux environments and using Git for version control.
• Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve).
• Awareness of and ability to support Whisk infrastructure and security requirements.
• Basic knowledge of HTML5, CSS3, and animation techniques (e.g., transitions, keyframes, scroll-triggered effects), with the ability to integrate them into PHP-rendered views or templating engines.

• A dynamic, collaborative, and highly technical work environment.
• Opportunities for professional growth in a rapidly evolving industry.
• Remote-first setup with regular opportunities to meet the team in person.
• Competitive compensation package.

ApplicationProcess

• Your resume
• A cover letter explaining your interest in the role
• Your response to the following technical challenge:

Challenge:

Apply Now: