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Avara US
About us: Avara is a group of software development companies that build open-source, blockchain-based software for the Web3 world. With a mission to reinvent our modern paradigms in the realm of finance, social media and beyond, we are focused on building revolutionary products and protocols that will reinvent the ways we communicate, our financial systems, and our cultural norms. United with one clear goal, Avara is determined to build a future for users that provide them with better control over their finances, data and social experiences. Our culture: Having cultivated a thriving, collaborative culture, our team is kind, welcoming and passionate about what we are building. We celebrate differences and seek to develop and retain the most talented people from a diverse candidate pool from all over the world. About the role: The Backend Developer will enhance and maintain high-performance systems using Node.js an

About us:

Avara is a group of software development companies that build open-source, blockchain-based software for the Web3 world. With a mission to reinvent our modern paradigms in the realm of finance, social media and beyond, we are focused on building revolutionary products and protocols that will reinvent the ways we communicate, our financial systems, and our cultural norms. United with one clear goal, Avara is determined to build a future for users that provide them with better control over their finances, data and social experiences.

Our culture:

Having cultivated a thriving, collaborative culture, our team is kind, welcoming and passionate about what we are building. We celebrate differences and seek to develop and retain the most talented people from a diverse candidate pool from all over the world.

About the role:

The Backend Developer will enhance and maintain high-performance systems using Node.js and TypeScript, optimise database performance, and implement best coding practices. This role involves collaborating with various teams to develop efficient APIs and streamline deployments, focusing on scalability and rapid response to support the Family Wallet.

How you can make an impact:

  • Develop, maintain, and enhance high-performance backend systems utilizing Node.js and TypeScript.
  • Optimise database performance, scalability, and integrity, managing both PostgreSQL and MongoDB environments.
  • Implement best practices in coding, including automated tests, comprehensive documentation, and conducting code reviews as necessary.
  • Collaborate with the DevOps team to streamline automated deployments using CI/CD, enhancing production visibility and ensuring environment stability.
  • Work closely with the iOS team to architect and develop efficient REST APIs that support the rapid response requirements of the Family wallet.
  • Process and convert blockchain data from multiple chains into a format suitable for efficient querying.
  • Design and implement sophisticated caching mechanisms to provide instantaneous API responses.
  • Lead backend architecture discussions and planning for integrating new features seamlessly.

Let’s connect if:

  • Minimum of 5 years’ experience in backend development, preferably with large-scale systems.
  • Strong proficiency in Node.js, TypeScript, Redis, Git, and RESTful API design.
  • Solid experience with both SQL and NoSQL database technologies.
  • Familiarity with AWS and other cloud services.
  • At least 1 year of experience in the web3 sector, developing backend solutions.
  • In-depth knowledge of the Ethereum Virtual Machine (EVM) and data extraction techniques from EVM-based blockchains.
  • Excellent skills in communication, collaboration, and problem-solving.
  • Capable of working both independently and as part of a diverse team.
  • Passion for building products with a high degree of craft, polish and attention to detail.

Haven’t quite met all the criteria? Let’s not miss out on the chance to speak. Whilst you might not meet every single requirement, you might bring other, more exciting skills to the companies!

Equal opportunity statement:

Avara celebrates diversity and view each and every team member as a separate individual with their own unique identity. No matter your race, religion, gender, ethnicity, age, (dis)ability, sexual orientation or even the wallet you use, we welcome you at Avara.

As an equal opportunities employer, we take accountability and believe in everyone’s potential to build, create and inspire changes. With a mission to build a diverse workforce, we are proud to foster a working environment in which everyone can feel safe and valued for who they are.

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Lemon.io Kyiv, Ukraine
Are you a talented senior developer looking for a remote job that lets you show your skills and get better compensation and career growth? Look no further than Lemon.io - the marketplace that connects you with hand-picked startups in the US and Europe. What do we offer: We respect your time: here is no micromanagement or screen trackers. You can earn with us $4k - $7.5k monthly - the rate depends on your skills and experience. We've already paid out over $10M to our engineers. You will enjoy your work - it’s possible to communicate async and choose a schedule that works best for you. You will communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah? We will support you from the time when the application will be started during all our cooperation. No more hunting for clients or negotiating
Are you a talented senior developer looking for a remote job that lets you show your skills and get better compensation and career growth? Look no further than Lemon.io - the marketplace that connects you with hand-picked startups in the US and Europe.
What do we offer:
  • We respect your time: here is no micromanagement or screen trackers.
  • You can earn with us $4k - $7.5k monthly - the rate depends on your skills and experience. We've already paid out over $10M to our engineers.
  • You will enjoy your work - it’s possible to communicate async and choose a schedule that works best for you.
  • You will communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah?
  • We will support you from the time when the application will be started during all our cooperation.
  • No more hunting for clients or negotiating rates - let us handle the business side of things so you can focus on what you do best.
  • We'll manually find you the best project according to your skills and preferences.
  • You will work at the fast-paced startup environment that will keep you motivated and engaged.
  • We will connect you with the best developers in the world through our community.
We also collaborate with other companies through staff augmentation. More details are here.
Who we are looking for:
  • Senior Software Developer
  • Senior+ Software Developer
Requirements:
  • Proficiency with PHP/Laravel (2+ years of exp)
  • Strong experience with React (2+ years of exp)
  • Experience with relational databases (e.g., MySQL) and NoSQL (e.g., MongoDB).
  • Proficiency in developing both GraphQL and RESTful APIs.
  • Familiarity with cloud computing (GCP, AWS, Azure)
  • Experience with other PHP frameworks such as Symfony, Yii, or CodeIgniter would be a plus
  • Familiarity with deployment workflows, continuous integration/continuous deployment (CI/CD) processes, and containerization tools like Docker is a plus.
  • Good command of English, both written and spoken, as you’ll be communicating with clients directly
  • Strong organizational skills — ability to work full-time remotely with no supervision
  • Responsibility — we want to trust you
  • Soft skills — we value clear and effective communication, at the same time, don't force you to become a public speaker
Ready to take your career to the next level? Apply now and join the Lemon.io community!
ALSO, we have a large number of different projects for Senior Full-Stack Developers, so if you have 4+ years of commercial experience in software development you are fluent with Android & iOS, React & Python, React & React Native, Data Engineering, Data Science, AI, Data Engineering & Data Science or AI & Machine Learning - we would be happy to communicate and provide you a project which matches with your experience. Just apply, and we will share with you more details.
If your experience matches with our requirements be ready for the next steps:
  • VideoAsk (about 10 minutes)
  • Completing your me.lemon profile
  • 30 minutes Screening call with our Recruiters
  • Technical Interview with our Developers
  • Feedback
  • Magic Box (we are looking for best project for you)
P.S. We work with developers from 59 countries in different regions: Europe, LATAM, Asia (Philippines, Indonesia), Oceania (Australia, New Zealand, Papua New Guinea), Canada and the UK. However, we have some exceptions.
At the moment, we don’t have a legal basis to accept applicants from certain European countries: Belarus, Iceland, Liechtenstein, Kosovo, Russia and Serbia. Additionally, there are a few countries in Latin America from which we cannot accept applicants: Cuba and Nicaragua, as well as most Asian countries. Furthermore, we are unable to accept applicants from Africa.
Please note that due to the overwhelming number of applications, only suitable candidates will be contacted for an interview.
We strongly ask you to send your CVs in ENGLISH. Application in English will be considered first. Good luck to everyone!
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Proxify AB Sweden
The Role: We are looking for a Senior Flutter Developer for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products and growth features. What we are looking for: 3 years of concentrated experience in Flutter 5+ years of experience in software development with a robust background in any framework/language/OS such as React Native, iOS (Swift), Android (Kotlin) Proven track record of deploying applications on Google Play/App Store using Flutter. Profound knowledge of front-end languages like HTML, CSS3, and JavaScript. Comprehensive understanding of Object-Oriented programming languages like Java and C++. Experience with version control tools (Git, Subversion, etc.) and IDEs (Andro
The Role:
We are looking for a Senior Flutter Developer for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products and growth features. 
What we are looking for:
  • 3 years of concentrated experience in Flutter 
  • 5+ years of experience in software development with a robust background in any framework/language/OS such as React Native, iOS (Swift), Android (Kotlin)
  • Proven track record of deploying applications on Google Play/App Store using Flutter.
  • Profound knowledge of front-end languages like HTML, CSS3, and JavaScript.
  • Comprehensive understanding of Object-Oriented programming languages like Java and C++.
  • Experience with version control tools (Git, Subversion, etc.) and IDEs (Android Studio, VS Code, etc.).
  • A commitment to following best practices and conventions in software development.
  • Ability to work independently with minimal supervision.
  • Intermediate-advanced English level, with excellent communication skills for both technical and non-technical clients.
Nice-to-have:
 
  • Time zone: CET (+/- 3 hours).
Responsibilities:
  • You will be building and shipping robust apps to Android/ iOS devices (using a single codebase).
  • ​​You will be running and designing product application features across various cross platform devices.
  • You will be writing readable and clear code that will be extensively documented for future use and upgrades.
  • You will be sharing feedback and brainstorming ideas with teams to improve the development process.
  • You will put effort in staying up-to-date with the latest technologies.
What Proxify offers
  • Career-accelerating positions at cutting-edge companies
    Discover exclusive long-term remote engagements at the world's most interesting product companies.
  • Hand-picked opportunities, just for you
    Skip the typical recruitment roadblocks and biases with personally matched engagements.
  • Fast-track your independent developer career
    Start small and gain more freedom to take on new engagements as you build your independent developer career.
  • A recruitment process that values your time
    Only one hiring process with the possibility of several positions, without any additional tests.
Salary Range: €3,200  - €6,400 per month
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Tensor ON Toronto, Ontario, Canada
About the Role You’ll be at the ground floor of bringing Tensor to the next 1 million traders by building the slickest iOS trading app in all of crypto. You will: Spearhead the implementation of a new iOS app for a Tensor Special Project Define best practices to build a performant and maintainable iOS app Take an existing React Native prototype and bring it to life on native iOS You must: Be excited about web3/crypto/NFTs. We really cannot overstate this - you’ll be joining a team of web3 nerds Be a generalist with 3+ years of experience working on performant mobile apps Have deep professional experience with iOS (Swift) “online” consumer apps that have scaled to 100K+ users Have professional experience with React Native Bonus points for:

About the Role

You’ll be at the ground floor of bringing Tensor to the next 1 million traders by building the slickest iOS trading app in all of crypto.

You will:

  • Spearhead the implementation of a new iOS app for a Tensor Special Project
  • Define best practices to build a performant and maintainable iOS app
  • Take an existing React Native prototype and bring it to life on native iOS

You must:

  • Be excited about web3/crypto/NFTs. We really cannot overstate this - you’ll be joining a team of web3 nerds
  • Be a generalist with 3+ years of experience working on performant mobile apps
  • Have deep professional experience with iOS (Swift) “online” consumer apps that have scaled to 100K+ users
  • Have professional experience with React Native

Bonus points for:

  • Strong open-source contributions: we like to work with devs who are passionate about their craft
  • Experience optimizing iOS & mobile apps to the limits of the OS and hardware
  • Good intuition on when to move fast/break things vs when to move carefully

What you’ll get:

  • Generous ownership & stake in the company. We’re looking for owners 🤝
  • A fast-paced, no-BS environment
  • Flexible working hours & hybrid schedule
  • Top-of-the-line M3 Macbook Pro and peripherals

Our existing stack is Rust (protocol) / TypeScript (back-end & front-end), React Native, AWS, Kubernetes and a bunch of distributed data systems (Kafka, RDS/Postgres, ElasticSearch).

You will be bringing a React Native app to life on native iOS.

Location

We’re remote-first. The founding team is in Toronto, and you’re welcome to join us there, but you don’t have to.

Apply Now:

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heyteleport.com Remote
At Teleport we're building a new kind of rideshare where customers pay less and drivers earn more. Our platform is built on an open rideshare protocol on the Solana blockchain, using a system that rewards network participants who help build the network. Teleport is already operational in Texas and we are preparing for nationwide and global expansion. Our team includes experienced operators, designers, and engineers who have worked at companies such as Dropbox, Amazon, Uber, Coinbase, and Cruise. Our investors include some of Uber's earliest employees and the founders of billion-dollar marketplaces. About the Role We are looking for an experienced Kotlin Android developer to join our engineering team to build our highly anticipated Android app. Teleport currently operates on iOS so you will be working closely with our lead iOS engineer and product designer to ma
At Teleport we're building a new kind of rideshare where customers pay less and drivers earn more. Our platform is built on an open rideshare protocol on the Solana blockchain, using a system that rewards network participants who help build the network.
Teleport is already operational in Texas and we are preparing for nationwide and global expansion.
Our team includes experienced operators, designers, and engineers who have worked at companies such as Dropbox, Amazon, Uber, Coinbase, and Cruise. Our investors include some of Uber's earliest employees and the founders of billion-dollar marketplaces.
About the Role
We are looking for an experienced Kotlin Android developer to join our engineering team to build our highly anticipated Android app. Teleport currently operates on iOS so you will be working closely with our lead iOS engineer and product designer to make sure the Android app can match the iOS app in functionality and design.
This role will report to the VP of Engineering and will need to collaborate regularly with the engineering team. We are excited to welcome someone who is a fast learner, interested in the space, and ready to get their hands dirty. Keep reading to learn more about the role. An interest in blockchain technology and wanting to learn to implement user-facing blockchain technology, is a huge plus.

Responsibilities

  • Design and develop advanced applications for the Android platform using Kotlin.
  • Ensure the performance, quality, and responsiveness of applications.
  • Collaborate with cross-functional teams to define, design, and ship new features.
  • Test features for robustness, including edge cases, usability, and general reliability.
  • Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
  • Monitor and manage application crashes and bugs using appropriate tracking tools.
  • Analyze usability metrics to improve application performance and user satisfaction.
  • Maintain a CI/CD pipeline for iterative app development.

Requirements

  • Proven software development experience and Android skills development using Kotlin.
  • Proven working experience in Android app development with a portfolio of released applications on the Google Play Store.
  • Experience with Android SDK, third-party libraries, and APIs.
  • Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies.
  • Basic understanding of iOS development with Swift.
  • Experience with distributed version control and collaborative workflows with Git/GitHub.
  • Solid understanding of the full mobile development life cycle.
  • Experience with crash tracking tools, and CI/CD tools for deployments.
  • Experience with usability metrics tracking tools.

Compensation & Benefits

  • Teleport’s total compensation packages include a competitive mix of salary and equity.
  • A combination of paid time off, sick leave, and flexible work arrangements that allow you to manage your time effectively and balance your work and personal commitments.
  • Remote First: we encourage you to create the work environment that you thrive in. Our team gets together in person regularly for product sprints and collaboration.
  • World class health coverage and an HSA available for certain plans.
  • A generous 401k match.
We're an equal opportunity employer. If you have any questions on the role or what we are building, feel free to reach out to us at email.

Apply Now:

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Lemon.io Kyiv, Ukraine
Are you a talented senior developer looking for a remote job that lets you show your skills and get better compensation and career growth? Look no further than Lemon.io - the marketplace that connects you with hand-picked startups in the US and Europe. What do we offer: We respect your time: here is no micromanagement or screen trackers. You can earn with us $5k - $9k monthly - the rate depends on your skills and experience. We've already paid out over $10M to our engineers. You will enjoy your work - it’s possible to communicate async and choose a schedule that works best for you. You will communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah? We will support you from the time when the application will be started during all our cooperation. No more hunting for clients or negotiating ra
Are you a talented senior developer looking for a remote job that lets you show your skills and get better compensation and career growth? Look no further than Lemon.io - the marketplace that connects you with hand-picked startups in the US and Europe.
What do we offer:
  • We respect your time: here is no micromanagement or screen trackers.
  • You can earn with us $5k - $9k monthly - the rate depends on your skills and experience. We've already paid out over $10M to our engineers.
  • You will enjoy your work - it’s possible to communicate async and choose a schedule that works best for you.
  • You will communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah?
  • We will support you from the time when the application will be started during all our cooperation.
  • No more hunting for clients or negotiating rates - let us handle the business side of things so you can focus on what you do best.
  • We'll manually find you the best project according to your skills and preferences.
  • You will work at the fast-paced startup environment that will keep you motivated and engaged.
  • We will connect you with the best developers in the world through our community.
We also collaborate with other companies through staff augmentation. More details are here.
We are looking for Senior and Senior+ only
Requirements:
  • 4+ years of software development experience
  • 2+ years of experience with React.js
  • 2+ years of experience with Python AND/OR 2+ years of experience with React Native as a mobile developer
  • Hands-on experience with Typescript, Django, Next, AWS would be a plus
  • Good command of English, both written and spoken, as you’ll be communicating with clients directly
  • Strong organizational skills — ability to work full-time remotely with no supervision
  • Responsibility — we want to trust you
  • Soft skills — we value clear and effective communication, at the same time don't force you becoming a public speaker
Ready to take your career to the next level? Apply now and join the Lemon.io community!
ALSO, we have a large number of different projects for Senior Full-Stack Developers, so if you have 4+ years of commercial experience in software development you are fluent with Android & iOS, React & PHP, Data Engineering, AI, Data Science, Data Engineering & Data Science or AI & Machine Learning - we would be happy to communicate and provide you a project which matches with your experience.  Just apply, and we will share with you more details.
If your experience matches with our requirements be ready for the next steps:
  • VideoAsk (about 10 minutes)
  • Completing your me.lemon profile
  • 30 minutes Screening call with our Recruiters
  • Technical Interview with our Developers
  • Feedback
  • Magic Box (we are looking for best project for you)
P.S. We work with developers from 59 countries in different regions: Europe, LATAM, Asia (Philippines, Indonesia), Oceania (Australia, New Zealand, Papua New Guinea), Canada and the UK. However, we have some exceptions.
At the moment, we don’t have a legal basis to accept applicants from certain European countries: Belarus, Iceland, Liechtenstein, Kosovo, Russia and Serbia. Additionally, there are a few countries in Latin America from which we cannot accept applicants: Cuba and Nicaragua, as well as most Asian countries. Furthermore, we are unable to accept applicants from Africa.
Please note that due to the overwhelming number of applications, only suitable candidates will be contacted for an interview.
We strongly ask you to send your CVs in ENGLISH. Application in English will be considered first. Good luck to everyone!
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