Senior Data Engineer

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: 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. Requirements for the Senior React & Python Position: 4+ years of software development experience. Commercial experience: React.js 3+ years & Python 3+ years OR React.js 2+ years & Python 5+ years OR React.js 5+ years & Python 2+ years Experience with AWS, GCP, or Azure is required. Other requirements: 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 …

Posted 2 Oct 2026

Senior Developer? Work Remote. Get Paid Well. Build What Matters. Lemon.io connects hand-picked senior developers with vetted startups across the US and Europe — no bidding wars, no ghosting, just serious opportunities. We're currently hiring for a research-driven AI company on a mission to slash the cost of modern AI — co-designing hardware, software, algorithms, and models to make AI's benefits accessible to everyone. They're active open-source contributors, building the infrastructure behind next-generation AI at scale. Open roles: Senior Back-end Engineer (Golang), Senior DevOps Engineer, Senior Site Reliability Engineer, Senior Storage Engineer, Senior Python & LLM Developer, Senior Back-end Engineer (Python) Why this one's worth a look: You'll be working on infrastructure that directly shapes how AI gets built and deployed, at a company operating at the frontier of the field. Locations: EU, US, Canada, UK, Australia, Singapore, Ireland, Norway, Switzerland, Iceland, and Mexico. Requirements for Senior Back-end Developers: 5+ years of software development experience 3+ years of experience with Golang and/or Python 2+ years of experience with Kubernetes 2+ years of experience with AI agent development Not your stack? We're placing Senior Developers (4+ yrs commercial experience) across AI Agent Architecture, AI Automation Architecture, AI Engineering, Site Reliability Engineering, Platform Engineering, React & Python, React & Golang, Golang, React & Java, React & Ruby, Ruby, PHP & Vue, Vue & Node.js, React & .NET, Android & iOS, iOS & Swift, Flutter & Firebase, Solutions Engineer, Blockchain (Ethereum/Ethers.js/Wagmi/Viem/Solana), Angular & Node.js, Vue & .NET, Python & Vue, DevOps, MLOps, Data Science, Angular & PHP, Angular & .NET, Symfony & React, Symfony & Vue, Symfony & Angular, Python, Symfony & JavaScript & Next.js & TypeScript, Data Analysis, React & PHP, Data Engineering, Project Management, Product Management, QA Automation, QA Manual, Embedded Softwa…

Posted 30 Sept 2026

Senior Python Developer Salary: From £50,000 per annum, depending on experience Location: Remote, open to candidates anywhere in the UK. If you like to work alongside colleagues in person, our offices are in Birmingham, Bristol, Exeter and London. Term/Hours: Permanent, 32–40 hours per week. We are flexible on working pattern, so please tell us what suits you in your application. Closing date for applications: Monday 12th October 2026 We welcome applications from all suitably qualified candidates regardless of sex, gender identity, age, disability, ethnicity, religion or belief, sexual orientation, or any other protected characteristic. We are only accepting direct applications (no recruiters please). Unfortunately, we cannot consider applications requiring visa sponsorship now, or in the future. About the Role We are looking for a Senior Python Developer (or someone operating close to senior level) to join our five-person energy development team. You will help lead the design and implementation of Python packages building on the Home Energy Model that will enable the next generation of energy performance assessment. You will work closely with DESNZ, external collaborators, our internal domain experts and your dev team, turning tangible and pressing user needs into reliable, maintainable Python software. The team is supportive and high-performing, and the work has a direct impact on carbon reduction. This role includes line management . You may already manage one or more developers, or you may be ready to take that step, supported by our programme of leadership and management training. Either way, you will help the people you manage to do their best work and develop their careers. What you will do · Design, build and improve Python packages for modelling, simulation and data processing. · Lead engineering decisions, architecture discussions and technical problem solving. · Turn analytical and modelling needs into shippable software. · Line manage one or more develo…

Posted 2 Oct 2026