Senior Full stack .NET Developer

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. Currently, we are seeking a Senior Full-Stack Developer for our client. It’s a direct hire position, but there is a paid trial period of 3–6 months before signing the contract directly with the client. You should have a strong background in .NET and modern Front-end frameworks ( Vue.js or React.js ). The ideal candidate will bring both breadth and depth of experience, with the flexibility to balance 50/50 Front-end and Back-end responsibilities , while maintaining a slight Back-end focus . Location / Time Zone : LATAM, Canada, or US time zones. The rate depends on your seniority level, skills, location and experience. Education : Bachelor’s degree in Computer Science, Software Engineering , or a related field. We are looking for a candidate who is not just technically strong but also thrives in a mission-driven, collaborative environment : Proactive developer with a focus on long-term, stable collaboration . Strong team player , able to adapt to dynamic processes and evolving environments. Problem-solving mindset with attention to detail and commitment to high-quality delivery. Excellent communication skills , with the ability to clearly articulate technical concepts. Human-centered approach to technology, passionate about the positive impact on people’s health . Requirements: 6+ years of commercial experience in software development. At least 3 years of commercial experience in front-end development. 4.5+ years of experience with .NET and ASP.NET Core , ideally combined with additional back-end technologies. 3+ years of experience with Vue.js or React.js . Proficiency in JavaScript and TypeScript is required. Architecture : Familiarity with Cloud Architecture and scalable system design. Expertise with Cypress, Playwright, Mocha, NUnit, and Puppeteer.js is a huge benefit. 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. Strong self-presentation skills are also essential for upcoming client calls. Strong self-organizational skills — ability to work full-time remotely without supervision. Reliability — we want to trust you and expect that you won’t let us or the client down. Adaptability and flexibility — the ability to onboard the project quickly after accepting it and start delivering results promptly. Does this sound like a good fit for you? Apply now and join our client’s team! The project is focused on healthcare and has the potential to make a significant impact on people’s lives. Potential perks in case of direct hire (after 3-6 months of contract work): Stock options. Comprehensive health, dental, and vision plans for you and your family. Flexible work environment. Team off-sites and wellness initiatives. Competitive vacation policy. A culture that emphasizes continuous learning and personal growth. Other Options from Lemon.io 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 & Node.js, React & Python, Swift & SwiftUI, Data Engineering, Blockchain, Unite&C#, PHP&Vue, MLOps, Rust, Svelte&TypeScript/Node/Python, 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 . Please mention the word **COMPREHENSIVE** and tag RMy4yMzguOTguMTMw when applying to show you read the job post completely (#RMy4yMzguOTguMTMw). This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see the