Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than Lemon.io — the marketplace that connects you with hand-picked startups in the US and Europe.  What we offer:  Earn $5k - $9k monthly: the rate depends on your skills and experience. We've already paid out over $11M to our engineers. 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 the best project for you according to your skills and preferences. Choose a schedule that works best for you. It’s possible to communicate async or minimally overlap within team working hours. We respect your seniority so you can expect no micromanagement or screen trackers. Communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah? We will support you from the time you submit the application throughout all cooperation stages. Most of our projects involve working in a fast-paced startup environment. We hope you like it as much as we do. Through our community, we will connect you with the best developers from more than 50 countries. Requirements:  5+ year of experience in Solidity smart contracts development: coding, testing, deployment Openzeppelin, upgradable smart contracts, common patterns Knowledge of most commonly used Ethereum token standards (ERC 20, 777, 721, 864, etc.) Strong understanding of DeFi protocols (Uniswap, Balancer, AAVE, Compound, etc.) Experience with React/Node/TS is a must Good understanding of current web3 & blockchain industry trends. Very good analytical and problem-solving skills. A good understanding of performance and optimization. Ability to write clean, maintainable and portable code Strong technical skills: as a Senior Developer, you are expected to be able to create projects from scratch and have a deep understanding of application architecture. Clear and effective communication in English — advanced ability to discuss business tasks, justify decisions, and communicate issues. Good self-presentation is also essential for upcoming client calls. Strong self-organizational skills — ability to work full-time remotely with no supervision. Reliability — we want to trust you and expect that you won’t let us and the client down. Adaptability and Flexibility — the ability to onboard the project promptly after accepting it and start delivering results quickly. Sounds good for you? Apply now and join the Lemon.io community! NOT YOUR TECH STACK? We have different projects for Senior Developers, so if you have 4+ years of commercial experience in software development and you are fluent with React & Python, iOS & Android, AI Engineering, we would be happy to communicate and provide you with a project that matches your experience. Just apply, and we will share more details with you. If your experience matches our requirements, be ready for the next steps: VideoAsk — watch a short video about our startup, up to 10 minutes. Complete your profile on our website. 30-minute screening call. Technical interview. Feedback. Magic Box (we are looking for the best project for you). P.S. We work with developers from 50+ 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 the following countries: European: Iceland, Liechtenstein, Kosovo, Belarus, Russia, and Serbia. Latin America: Cuba and Nicaragua Most Asian countries and Africa. We expand and shorten the list of exemptions regularly. Do you represent a company with engineers who match the description and want to collaborate with us through staff augmentation? Then register. When applying, mention the word CANDYSHOP to show you read the job post completely.