React js jobs in crypto and blockchain companies

About Us:-Since its founding in 2017, Prometheum has leveraged its deep expertise in securities law, blockchain and trading to create a compliant ecosystem for digital asset securities that enables all investors to seamlessly invest in digital assets securities. Prometheum has relied on its strong diverse team to build the tools to service digital asset securities. To date, Prometheum has built multiple broker-dealers traversing novel areas and a large technology stack (intersecting trading, blockchain, compliance, etc.). We continue to grow and are looking for hardworking hungry individuals that can contribute to our already great fintech company culture as we traverse new and exciting areas that require a thirst for solving complicated problems. Role:- Fullstack Engineer - Full Time W2Salary Range:-$120,000 - $180,000 Overview:- We are looking for a Fullstack engineer who is motivated to bring their skills and experience working in fin-tech areas to our technology stack.  Responsibilities:-Working with technical leadership and other developers to implement custody, compliance, operations and post-trade settlement systems within our NodeJS-based back end architecture. You will be working with internal and external parties to integrate with blockchain systems and APIs. Qualifications:-7+ years’ experience in engineering including both frontend and backend.Extensive experience of NodeJS and common packages, architecturesStrong knowledge of TypeScript for both NodeJS and frontend development, improving type safety and code reliability.Experience designing, maintaining and expanding APIs via REST.Understanding of GraphQL and building efficient queries/mutations.Experience building tool chain applications, agents, services, server and client applications in NodeJS or similarThorough working knowledge working with a variety of database, SQL and other storage technologies in NodeJS.Excellent problem solving skillsExcellent verbal communication and interpersonal skillsExperience working in an Agile environment and familiarity with tools like Jira, Trello, and ConfluenceA proven track record developing interfaces with ReactJS, and are proficient with front-end languages (HTML, CSS and Javascript)Experience with designing and developing microservices-based architectures, especially for complex systems.Basic understanding of key design principles, and responsive and adaptive designWrite clean, tested code and value documenting your work for others.Proficient understanding of client-side JavaScript frameworks, including lodash or underscoreGood understanding of testing tools like Jest or MochaProficient understanding of cross-browser compatibility issues and ways to work around themProficient understanding of code versioning tools, specifically including Git Benefits:-Excellent benefits including:- Health, Vision & Dental InsuranceFully remote position with equipment provided. Prometheum is an equal opportunity employer. Experience RequirementsExperienced

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—$10,4k monthly: the rate depends on your seniority level, 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: 4+ years of software development experience. 3+ years of commercial experience with React.js. 3+ years of commercial experience with Python AND/OR 4+ years of experience with Node.js.   For React & Python Developer: hands-on experience with AWS, Next.js, TypeScript, PostgreSQL would be a plus. For React & Node Developer: hands-on experience with AWS, Next.js, TypeScript is a must.   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 Engineers, so if you have 4+ years of commercial experience in software development/testing and you are fluent with AI Engineering or QA Engineering, Blockchain, Solidity, 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 here.