Solana

Rust

France, Paris
1-3 years
$40k ($3.3k / month)
Advanced

Core technical skills
Achievements / Key results: I led the development of a cross-platform desktop application that was showcased at the Paris 2024 Olympics. I volunteered at the ZK Summit in Lisbon, a major event focused on zero-knowledge proofs and blockchain technology. Later, I also contributed to the SheFi Summit in Bangkok.
Considering roles
Ready to work: remotely

Blockchain Developer

Finland, Hamina
5+ years
$80k ($6.7k / month)
Advanced

Core technical skills
Achievements / Key results: Sr. Blockchain Engineer and Web3 Fullstack Developer with over 7 years of hands-on experience in Fintech / Defi / AI / DEPIN / Game spaces, utilizing serveral programming languages and frameworks such as Solidity, JS/TS, Golang, Rust, React, Web3.js/Ethers.js, Hardhat, AWS/GCP. With deep understanding in Zero-Knowledge Proofs, Cryptography, Tokenomics, Security, Cosmos SDK, Polygon CDK and various Consensus Protocols.
Considering roles
Ready to work: remotely

Software Developer

Cyprus, Larnaca
5+ years
$96k ($8k / month)
Advanced

Considering roles
Core technical skills
Ready to work: remotely

Blockchain engineer

United Kingdom, London
5+ years
$96k ($8k / month)
Advanced

Core technical skills
Achievements / Key results: Smart contracts in MEV trading bot, Gaming, NFT, DeFi, DEX & DEX aggregator
Considering roles
Ready to work: remotely

Senior Blockchain Full Stack Software Engineer

United States, Phoenix
5+ years
$120k ($10k / month)
Advanced

Core technical skills
Achievements / Key results: Successfully contributed to the development of Launch Legends and RetroCraft, two major projects that advanced blockchain innovation and decentralized application development. Delivered scalable and secure smart contract solutions on Ethereum and Solana, supporting NFT marketplaces and DeFi applications with millions of dollars in transaction volume. Spearheaded the implementation of cross-chain interoperability solutions, enhancing seamless asset transfer and collaboration between different blockchain networks. Played a pivotal role in developing zero-knowledge proof systems to improve privacy and efficiency in decentralized systems. Worked with top-tier companies like Ripple, where I contributed to blockchain-powered payment systems, streamlining cross-border transactions. Earned certifications in blockchain and cloud technologies, solidifying expertise in cutting-edge tools and protocols.
Considering roles
Ready to work: remotely

Senior Blockchain Developer

Germany, Munich
5+ years
$24k ($2k / month)
Intermediate

Core technical skills
Achievements / Key results: As a skilled and motivated full-stack developer, I bring extensive experience in both backend and frontend development. I am committed to delivering high-quality results while fostering collaboration in dynamic environments. My proficiency in various programming languages and frameworks allows me to develop responsive web applications and robust APIs effectively. With a proven track record in JavaScript and Python, alongside experience with React and Django, I excel at creating seamless user experiences and efficient server-side solutions. Let's connect to explore how I can contribute to your team's success!
Considering roles
Ready to work: remotely

The coolest developer

United Kingdom, Cambridge
5+ years
$215.5k ($18k / month)
Upper intermediate

Core technical skills
Achievements / Key results: Dog
Ready to work: remotely

Senior Full stack developer

Georgia, Tbilisi
5+ years
$60k ($5k / month)
Upper intermediate

Core technical skills
Achievements / Key results: As a senior full-stack web developer, here are some examples of key results you might have helped your product achieve and how you contributed to them: 1. Improved Application Performance Key Result: Reduced server response time by 30%, leading to a 20% increase in user retention. Contribution: Optimized backend queries and implemented caching mechanisms using Redis. Refactored code to follow SOLID principles, reducing technical debt. Conducted performance testing and identified bottlenecks using tools like Postman and JMeter. 2. Enhanced User Engagement Key Result: Increased daily active users (DAUs) by 40% within three months of launching a new feature. Contribution: Designed and developed an intuitive and responsive user interface using React/Angular and Tailwind CSS. Implemented gamification features (e.g., leaderboards, achievements) to encourage engagement. Collaborated with the product team to fine-tune user experience through A/B testing. 5. Strengthened Security and Compliance Key Result: Passed third-party security audits and achieved 100% GDPR compliance. Contribution: Implemented OWASP-recommended practices for secure coding. Added two-factor authentication (2FA) and role-based access controls (RBAC). Developed scripts to anonymize and encrypt sensitive user data in backups. 3. Accelerated Feature Delivery Key Result: Delivered 15+ new features in six months, cutting release cycles by 50%. Contribution: Built reusable components to speed up frontend development in React and Angular. Set up CI/CD pipelines using GitHub Actions and Jenkins to automate testing and deployments. Implemented API-first development, ensuring seamless collaboration between frontend and backend teams. 4. Boosted Revenue Through Scalability Key Result: Scaled the platform to handle 5x traffic growth, contributing to a 25% revenue increase. Contribution: Migrated monolithic architecture to microservices using Node.js and Docker. Integrated load balancers and auto-scaling groups in AWS for high availability. Conducted stress testing to ensure stability during peak loads.
Considering roles
Ready to work: remotely

Senior Web Engineer

Japan, Shimotsuke
3-5 years
$36k ($3k / month)
Advanced

Core technical skills
Achievements / Key results: E-commerce Store Development ● Description: Developed a fully functional e-commerce store for a retail client using Shopify, including theme customization and app integration. ● Technologies Used: Shopify, Liquid, HTML, CSS, JavaScript ● Impact: Increased online sales by 50% within the first quarter post-launch, improving user experience with an intuitive interface and streamlined checkout process. Shopify App Integration ● Description: Integrated third-party apps (such as payment gateways and inventory management tools) into existing Shopify stores for enhanced functionality. ● Technologies Used: Shopify API, JavaScript, Liquid ● Impact: Improved operational efficiency for clients, leading to a 25% reduction in time spent on inventory management and reporting tasks. Shopify Store Optimization ● Description: Conducted performance optimization for an existing Shopify store, including speed enhancements and SEO improvements. ● Technologies Used: Shopify, Liquid, Google Analytics ● Impact: Increased site speed by 40% and improved search rankings, resulting in a 30% increase in organic traffic.
Considering roles
Ready to work: remotely

Full-stack blockchain developer

Hong Kong, Hong Kong
5+ years
$60k ($5k / month)
Upper intermediate

Core technical skills
Achievements / Key results: trading bot, trading platform, web3, mern-stack
Considering roles
Ready to work: remotely

Rust Developer

United States, San Francisco
1-3 years
$100k ($8.3k / month)
Advanced

Core technical skills
Achievements / Key results: Software Developer with 1 year of experience at Hybrowlabs Technologies, proficient in RTK Query, HTML, CSS, JavaScript, React, and TypeScript. Developed responsive user interfaces for large-scale web applications, resulting in a 30% increase in user engagement over a year. Adept at debugging complex software issues and maintaining high-quality standards through regular code reviews.
Considering roles
Ready to work: remotely

Senior Blockchain Engineer

United States, Mission
5+ years
$200k ($16.7k / month)
Advanced

Core technical skills
Achievements / Key results: Frontend Engineer
Considering roles
Ready to work: remotely

Full stack web developer

Costa Rica, San José
5+ years
$60k ($5k / month)
Upper intermediate

Core technical skills
Achievements / Key results: * Helped companies to build robust design systems with reusable components * Leading front end engineers and mentoring new members
Considering roles
Ready to work: remotely

Developer

United States, Chicago
5+ years
$135k ($11.3k / month)
Advanced

Core technical skills
Achievements / Key results: • Anchor Message Payment: Anchor Message Payment is an application built with Next.js, TypeScript, and React that integrates with an Anchor Rust Solana on-chain contract. It allows users to create accounts where others can send messages with attached SOL (Solana tokens). Users can mark messages as "read" to claim 85% of the attached SOL, with the remaining 15% as a fee paid to a predefined keypair owned by the app's administrator. • Bad Email Crate: I created a Rust Cargo Crate that takes in an email as a variable and then compares the email domain to a list of over 10,000 known disposable emails. The crate has over five hundred downloads and a contribution from someone other than myself online.
Considering roles
Ready to work: remotely

software engineer

India, Bengaluru
3-5 years
$140k ($11.7k / month)
Advanced

Core technical skills
Achievements / Key results: • Created a Single-Sided Liquidity staking platform with $10M+ TVL and facilitated $700M+ volume using Rust. • Engineered a Solana NFT aggregator marketplace supporting over 1.5 million NFTs. • Developed a large-scale metrics/monitoring service in Rust to track high-volume trades for analytics and alerts. • Built a fault-tolerant microservice for auto-debit and subscription payments, serving 1M+ users seamlessly. • Developed an automated Rust smart contract for raffle contests, transparently rewarding users with tokens. • Awarded 1st prize out of 300 participants in the Topcoder coding competition at Teckzite 2020. • Secured 1st place in the ethical hacking competition with 2500+ participants at InCTF 2018.
Considering roles
Ready to work: remotely

Senior Web3 Frontend Engineer

Poland, Wrocław
5+ years
$60k ($5k / month)
Advanced

Core technical skills
Achievements / Key results: Led the development of a decentralized finance (DeFi) dashboard with over 20,000 active users, optimizing user interface for seamless interaction with blockchain data.
Considering roles
Ready to work: remotely

Web3 Frontend Developer

Singapore, Singapore
5+ years
$72k ($6k / month)
Advanced

Core technical skills
Achievements / Key results: I have built several NFT marketplaces with more than 40k users Specialized in Frontend using React and also React Native with the frameworks such as Expo I am focusing on new technologies so I learned web3.js while development of frontend
Considering roles
Ready to work: remotely

Senior Blockchain | Full Stack Developer

Egypt, Sohag
3-5 years
$40k ($3.3k / month)
Advanced

Core technical skills
Achievements / Key results: React.js, Next.js, Node.js, Blockchain Technology
Considering roles
Ready to work: remotely

Senior Blockchain developer

United States, Mission
5+ years
$60k ($5k / month)
Advanced

Core technical skills
Achievements / Key results: -Spearheaded a joint initiative with product and development teams, enhancing platform efficiency by 20%. -Engaged in over 10 open source community projects, liaised with stakeholders, and provided mentorship and guidance to 3 emerging junior developers. -Enhanced to engineering a robust backend infrastructure pivotal for the convergence of Web3 and FinTech.
Considering roles
Ready to work: remotely

blockchain software engineer

Colombia, Barranquilla
1-3 years
$24k ($2k / month)
Intermediate

Core technical skills
Achievements / Key results: I had the opportunity to participate in several significant projects that allowed me to apply my skills in the development of smart contracts and decentralized applications. Some of my notable achievements include: Smart Contract Development: I contributed to the design and development of smart contracts using languages such as Rust and Clarity. These smart contracts were deployed on the Stacks network and provided functionalities such as digital asset management, decentralized voting, and governance systems. Creation of Decentralized Applications (dApps): I collaborated in the creation of various dApps that took advantage of the Stacks network infrastructure. These applications include decentralized exchange platforms (DEX), decentralized identity systems (DID), and digital asset tracking tools. Integration of Smart Contracts with Web Applications: I worked on the integration of smart contracts with existing web applications, allowing seamless interaction between users and the decentralized functionality provided by the Stacks network. This involved implementing intuitive and secure user interfaces (UI) to facilitate interaction with smart contracts. Collaboration in Multidisciplinary Teams: I actively participated in multidisciplinary teams, collaborating with developers, designers and blockchain experts to carry out projects from conception to successful implementation. This experience allowed me to develop teamwork and effective communication skills.
Considering roles
Ready to work: remotely

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Rust

Blockchain Developer

Software Developer

Blockchain engineer

Senior Blockchain Full Stack Software Engineer

Senior Blockchain Developer

The coolest developer

Senior Full stack developer

Senior Web Engineer

Full-stack blockchain developer

Rust Developer

Senior Blockchain Engineer

Full stack web developer

Developer

software engineer

Senior Web3 Frontend Engineer

Web3 Frontend Developer

Senior Blockchain | Full Stack Developer

Senior Blockchain developer

blockchain software engineer

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