Create flexible and precise queries that fit your needs exactly. Example:
React.js, -USA
×
Laravel, Vue.js, -Contract
×
will get you jobs that are
(React.js and not in USA) or
(Laravel and Vue.js and not Contract/Freelance).
You can mix and match any tags, negations and groups in any order. And don't worry about typos – the search is fuzzy.
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 Software Development Engineer (UI) to join our Shared platform services team in Bangalore, India. Reporting to the Engineering Manager, Software Development, you will be responsible for:
Developing and maintaining high performance resilient UI using ReactJS/TypeScript/Tailwind Documenting and communicating technical specifications to ensure alignment with stakeholders Collaborating with cross-functional teams, including product managers, designers and engineers to ship best-in-class products with quality Identifying and resolving technical challenges and issues by incorporating a robust test automation strategy Participating in code reviews, providing feedback, and enforcing coding standards to ensure high-quality and maintainable codebase
What We’re Looking for (Minimum Qualifications)
3+ years of experience in JavaScript development with building and deploying ReactJS applications You excel in creating lean, clear, and up-to-date documentation, testing, and automation, and view these as integral components of your UI engineering workflow You possess exceptional problem-solving skills and a proven ability to develop creative solutions to technical challenges Prior experience with effectively conveying complex technical concepts to both technical and non-technical stakeholders to both technical and non-technical stakeholders You have a demonstrated track record of fostering engineering excellence and driving innovation in previous roles
What Will Make You Stand Out (Preferred Qualifications)
Demonstrated expertise in delivering high-quality, detail-oriented work with a focus on performance optimisation and code quality Skilled in designing and implementing scalable, reusable front-end architectures that prioritise seamless user experiences and efficient component composition Experience in D3 Charts, Webpack, Nextjs, Typescript, Playwright Automation, Unit testing frameworks
LI-Hybrid
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:
About the Company:
Stader Labs is on a mission to bring sustainable staking yields from digital assets to 1Bn+ users. Stader aims to be the distribution layer of staking while building protocols and products which enhance the security, decentralization, liquidity, governance of some of the major DPoS blockchain networks like Ethereum.
Cabbage is Stader Labs’ deep dive into memecoin discovery and trading—powered by AI, backed by risk mitigation, and fueled by rapid growth plans that span chains, devices, and asset classes. It blends speculative trading with tooling historically reserved for institutional DeFi.
Position Overview: We're looking for a Frontend Developer who’s passionate about building seamless Web3 experiences. In this role, you'll lead the development of modular, high-performance UIs using React and Next.js (App Router), and integrate directly with wallets and smart contracts using tools like wagmi, viem, and @solana/web3.js. You'll work closely with design systems (shadcn/ui, Tailwind), manage state using Zustand or Redux, and implement authentication with NextAuth or BetterAuth.
What You'll Do
- Develop and maintain modular, performant, and visually appealing frontend applications using React.js and Next.js (App Router).
- Integrate with Web3 wallets and contracts using wagmi, viem, and @solana/web3.js.
- Build and manage global and local state using Zustand, Redux, or equivalent.
- Implement authentication flows using NextAuth, BetterAuth, and related tools.
- Work with design systems like shadcn/ui, >Tailwind CSS.
- Collaborate with backend engineers and integrate APIs using GraphQL and REST.
- Maintain a clean component architecture and optimize for responsiveness, accessibility, and performance.
What We’re Looking For
- 3–5 years of frontend development experience, with at least 1+ year in Web3.
- Strong proficiency with React.js, Next.js (App Router), and modern frontend patterns.
- Solid experience with Web3 frontend stacks, including:
- wagmi, viem, RainbowKit
- @solana/web3.js (basic proficiency expected)
- Hands-on experience with state management libraries like Redux or Zustand.
- Deep understanding of Tailwind CSS and component libraries like shadcn/ui.
- Proficient in building and consuming GraphQL APIs.
- Familiarity with authentication flows in decentralized apps (NextAuth, BetterAuth, etc.).
- Clean coding practices, reusable components, and performance optimization mindset.
- Bonus: Experience with SSR/SSG in Next.js, Framer Motion, or cross-chain workflows.
Apply Now:
Winnables
Remote - Europe Based
Job Description:
Winnables.com is looking for a creative front-end-leaning Full Stack Developer who loves bringing slick, engaging user experiences to life while still caring about the behind-the-scenes details.
You’ll collaborate closely with designers and product leads, iterate quickly on new ideas, and see the direct impact of your work in the hands of players around the world.
If you enjoy mixing imaginative front-end polish with just enough back-end know-how to make the magic happen, we’d love to hear from you.
Key Responsabilities:
- Transform design mock-ups and product concepts into polished, responsive game screens, animations, and flows.
- Collaborate daily with designers, product leads, and blockchain engineers to prototype, ship, and iterate on new games or new features.
- Continuously test, debug, and optimize for performance across devices and network conditions.
- Review code, share best practices, and help keep our small codebase clean, secure, and easy to extend.
- Use player feedback and analytics to refine existing features and guide new ideas from concept to launch.
- Champion accessibility and web-standards compliance, ensuring every player—regardless of device or ability—has a first-class experience.
What You’ll Be Building
- Build interactive mini-games that deliver smooth, responsive gameplay.
- Create real-time multiplayer features and live game mechanics.
- Develop pack-opening systems with eye-catching, engaging animations.
- Engineer raffle and lottery-style games that are fully on-chain and provably fair.
- Implement Plinko and other physics-based games, tuned for fun and balance.
- Craft user-friendly interfaces that perform flawlessly across mobile, tablet, and desktop.
Requirements
Tech Stack:
- Core: TypeScript · React & Next.js · Node.js · Zustand · WebSockets & REST
- Data & Infra: PostgreSQL (Supabase) · Redis · Docker · GitHub
- Observability: Grafana · PostHog
- Design & Web3: Figma · viem / wagmi
What We're Looking For
- Strong experience with TypeScript and modern JavaScript
- Solid understanding of React and Next.js ecosystem
- Experience building real-time applications with WebSockets
- Familiarity with Node.js backend development
- Knowledge of PostgreSQL and database design
- Experience with responsive design and mobile-first development
- Understanding of state management patterns (Zustand experience preferred)
- Understanding of web security fundamentals (CSRF protection, secure authentication flows, input validation)
- Interest in gaming mechanics and interactive user experience.
Nice to Have
- Experience with gaming or interactive application development
- Knowledge of blockchain technologies and Web3 integration
- Familiarity with monitoring tools (Grafana, PostHog)
- Experience with Docker and containerization
- Understanding of real-time multiplayer game architecture
Benefits
- Work From Home
Company Description:
Winnables.com is on a mission to re-imagine iGaming through full on-chain transparency. We believe players deserve provably fair odds, transparent math, and no black-box RNGs. Every spin and ticket purchase is recorded immutably on Ethereum, so anyone can audit the outcome, track prize pools, or even build their own analytics on top of our contracts.
All of our games are designed and engineered 100% in-house by a small, senior team that blends game design, cryptography, and smart-contract security. We currently operate two flagship experiences:
- Raffles – transparent prize drawings where every ticket lives on-chain, letting players verify fairness before and after the draw.
- Loot Packs – blockchain-powered loot boxes that reveal randomized rewards with engaging pack-opening animations.
We’re still just getting started. The roadmap is full of green-field challenges—and real, measurable impact on an industry ripe for change. Join us and help craft the next generation of fair, fun, and truly player-owned gaming.
Apply Now:
Apply Now:
Re7 Capital
Remote
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.
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
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.Apply Now: