19 software developer jobs found

Software Developer — Build Your Own Project with an AI Coding Assistant About The Role What if you could get paid to work on the project you've been meaning to build — with a state-of-the-art AI coding assistant at your side, completely free of charge? We're looking for software developers in the London area to bring their own projects and build them using an AI-powered coding assistant. You write real code on real projects you care about. We learn from your expert judgment on how the assistant performed. You keep full ownership of everything you build. This is a fully remote, flexible contract role designed for developers who want to ship their own work — and get compensated for it. Organization: Alignerr Type: Hourly Contract Location: Fully Remote Commitment: Flexible What You'll Do Bring a software project you personally own — a side project, a tool, an open-source library, or something you've been meaning to...

AfterQuery is looking for experts with experience in software engineering, computer science, or app/web development to help train and evaluate AI models. This is a remote, project-based role: qualify once through a single assessment and receive ongoing project matches spanning code review, evaluation, and original task creation. Pay ranges from $50 to $100/hour depending on the projects you qualify into. Why Apply Competitive Pay: $50–$100/hour across the project pool One Assessment, Ongoing Matches: qualify once, get matched to projects continuously Flexible Engagement: fully remote and asynchronous, on your own schedule Responsibilities Complete software engineering tasks across a range of AI training and evaluation projects Review and evaluate code and model outputs for correctness and quality Deliver clear, well-documented work independently Required Qualifications 2+ years of real-world software engineering experience...

Mobile Software Engineers, iOS, Android & Cross-Platform Developers. Remote AI Project   We are seeking experienced Mobile Software Engineers, iOS Developers, Android Developers, React Engineers, and Flutter Developers to contribute to a remote AI project focused on advanced mobile software engineering.   You will create challenging coding environments that test an AI model’s ability to debug mobile applications, build non-trivial features, refactor complex code, manage application state and lifecycle, and optimize performance.   What You’ll Do   Create realistic and technically challenging mobile software engineering tasks using real or representative codebases. Design problems involving bug fixing, feature development, application state, lifecycle behavior, asynchronous workflows, refactoring, and performance optimization. Build tasks for React, Flutter, iOS, or Android applications based on your...

ABOUT THE OPPORTUNITY Islands Book Trust invites proposals from experienced freelancers, website developers and small studios to develop Islands Server, a free-to-use digital platform for Scotland’s islands. This platform will enable people and organisations to contribute, preserve and discover video, audio, oral histories, heritage, stories, photographs, projects and contemporary cultural material. This commission is for technical design, development, implementation, testing and handover, not a new brand or visual redesign. IBT will work in collaboration to provide the concept, visual and editorial direction, content, partnerships and ongoing platform management. The SSEN allocation of £15k relates directly to the website development, digital hub architecture, Islands Voices archive, hosting configuration, data handling and security, including targeted specialist support. The site structure is based on ISLANDS | PEOPLE | PROJECTS | VOICES | KNOWLEDGE,...

Are you a Kotlin expert eager to shape the future of AI? Large-scale language models are evolving from chatbots into powerful developer assistants capable of reasoning about complex software systems. With high-quality engineering data, tomorrow's AI can support developers in solving real-world problems faster and more accurately. That training data begins with you—your coding expertise will help power the next generation of AI. We're looking for Kotlin specialists who can take real-world engineering scenarios—such as bug reports or feature requests in a Git repository—and produce clean, efficient, and idiomatic solutions using the Kotlin programming language. You'll create high-quality code patches that reflect modern Android development practices and ensure technical correctness, maintainability, and clarity. You should have hands-on experience with modern Android and Kotlin development, including Jetpack Compose, Kotlin Coroutines, and Jetpack libraries such...

ABOUT THE OPPORTUNITY Islands Book Trust invites proposals from experienced freelancers, website developers and small studios to develop Islands Server, a free-to-use digital platform for Scotland’s islands. This platform will enable people and organisations to contribute, preserve and discover video, audio, oral histories, heritage, stories, photographs, projects and contemporary cultural material. This commission is for technical design, development, implementation, testing and handover, not a new brand or visual redesign. IBT will work in collaboration to provide the concept, visual and editorial direction, content, partnerships and ongoing platform management. The SSEN allocation of £15k relates directly to the website development, digital hub architecture, Islands Voices archive, hosting configuration, data handling and security, including targeted specialist support. The site structure is based on ISLANDS | PEOPLE | PROJECTS | VOICES | KNOWLEDGE,...

Software Engineer (C#) — Internal Tooling (AI Infrastructure) About The Role What if your C# expertise could directly shape the infrastructure powering the next generation of AI? We're looking for experienced full-stack C# engineers to build and optimize the data pipelines, annotation systems, and evaluation tooling that leading AI labs depend on every day. This isn't maintenance work or low-stakes ticket-churning. You'll be working on real production systems at the frontier of AI development — the kind of infrastructure that determines how AI models are trained, measured, and improved. Organization: Alignerr Type: Hourly Contract Location: Remote Commitment: 20–40 hours/week What You'll Do Design, build, and optimize high-performance C# systems supporting large-scale AI data pipelines and evaluation workflows Develop full-stack tooling and backend services for data annotation, validation, and quality control at scale...

Are you a Kotlin expert eager to shape the future of AI? Large-scale language models are evolving from chatbots into powerful developer assistants capable of reasoning about complex software systems. With high-quality engineering data, tomorrow's AI can support developers in solving real-world problems faster and more accurately. That training data begins with you—your coding expertise will help power the next generation of AI. We're looking for Kotlin specialists who can take real-world engineering scenarios—such as bug reports or feature requests in a Git repository—and produce clean, efficient, and idiomatic solutions using the Kotlin programming language. You'll create high-quality code patches that reflect modern Android development practices and ensure technical correctness, maintainability, and clarity. You should have hands-on experience with modern Android and Kotlin development, including Jetpack Compose, Kotlin Coroutines, and Jetpack libraries such...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers based in London to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable microservices that handle real-world traffic at scale. This is a fully remote, flexible contract role. Whether you're a seasoned engineer looking for meaningful project work or a strong developer ready to apply your skills to AI-adjacent infrastructure, this is your chance to build things that matter. Organization: Alignerr Type: Hourly Contract Location: Remote Commitment: 10–40 hours/week What You'll Do Design, develop, and maintain robust back end services, APIs, and data pipelines Build scalable, high-performance server-side architecture to support AI training and inference...

About The Role What if your years of software engineering experience could directly shape how AI writes code for millions of developers? We're looking for Software Engineers in London to evaluate, rank, and refine AI-generated code — helping the next generation of coding assistants produce solutions that are correct, efficient, idiomatic, and production-ready. Your deep understanding of software architecture, design patterns, and real-world engineering trade-offs is exactly what AI models need to get better. This isn't about writing boilerplate — it's about applying expert judgment to push the boundaries of what AI can do with code. This is a fully remote, flexible contract role built for experienced developers who want meaningful, high-impact work on their own schedule. Organization: Alignerr Type: Hourly Contract Location: Remote Commitment: 10–40 hours/week What You'll Do Review and rank AI-generated code solutions across...

Job Title - IQA (Internal Quality Assurer) for ICT and Data Apprenticeships Location - Remote working Position - Freelance Reports to - Head of Training and Quality About the Organisation We are an grade 2 ‘good’ national training provider based in Leicester established since 2006. We deliver further education and provide employment opportunities through our Apprenticeships programmes. After recently achieving our OFSTED grade 2 ‘good’ - We are on a mission - to become an Outstanding high performing work-based training provider meeting the needs of each individual learner empowering them to succeed, progress and thrive in their chosen career path. To support employers in providing quality, meaningful learning opportunities for new and existing team members. Our vision is to provide and deliver our training programmes with positive qualification outcomes, by fulfilling legislation and regulation as a minimum requirement of...

AfterQuery is seeking experienced Product Managers to create and evaluate product-management reasoning challenges for our AI training modules. In this remote, flexible role, you will design realistic product scenarios — prioritization calls, spec reviews, stakeholder trade-offs — that test an AI model’s ability to reason like a strong PM, and grade model responses against real product judgment. Why Apply Competitive Compensation: attractive hourly rates that reward your specialized expertise Innovative Impact: join a YC-backed startup revolutionizing AI with high-caliber expert content and insights Flexible Engagement: a remote, asynchronous role that lets you contribute to pioneering projects on your own schedule Responsibilities Develop product cases, PRD critiques, and prioritization exercises that challenge AI models on realistic product decisions Evaluate and score model responses, providing detailed feedback on product...

Software Engineer – Full Stack Job Type :- Freelance Work Location :- Fully Remote (UK) Compensation :- £40–£80 per hour Working Hours :- 16 Hours per Week | Flexible Job Summary We are seeking an experienced Full Stack Software Engineer to design, develop, test and maintain scalable high-performance web applications and software solutions. The ideal candidate will have strong expertise in frontend and backend development, full-stack engineering, API integration, database management, cloud deployment and software architecture. You will be responsible for developing reliable applications, building backend services, creating responsive user interfaces, optimising system performance, troubleshooting technical issues and delivering high-quality software solutions. Candidates should have strong programming fundamentals, practical full-stack development experience and the ability to work independently in a flexible, fully remote...

Job Description Job Title - IQA (Internal Quality Assurer) for ICT and Data Apprenticeships Location - Remote working Position - Freelance Reports to - Head of Training and Quality About the Organisation We are an grade 2 ‘good’ national training provider based in Leicester established since 2006. We deliver further education and provide employment opportunities through our Apprenticeships programmes. After recently achieving our OFSTED grade 2 ‘good’ - We are on a mission - to become an Outstanding high performing work-based training provider meeting the needs of each individual learner empowering them to succeed, progress and thrive in their chosen career path. To support employers in providing quality, meaningful learning opportunities for new and existing team members. Our vision is to provide and deliver our training programmes with positive qualification outcomes, by fulfilling legislation and regulation as a minimum...

AfterQuery is seeking experienced Product Managers to create and evaluate product-management reasoning challenges for our AI training modules. In this remote, flexible role, you will design realistic product scenarios — prioritization calls, spec reviews, stakeholder trade-offs — that test an AI model’s ability to reason like a strong PM, and grade model responses against real product judgment. Why Apply Competitive Compensation: attractive hourly rates that reward your specialized expertise Innovative Impact: join a YC-backed startup revolutionizing AI with high-caliber expert content and insights Flexible Engagement: a remote, asynchronous role that lets you contribute to pioneering projects on your own schedule Responsibilities Develop product cases, PRD critiques, and prioritization exercises that challenge AI models on realistic product decisions Evaluate and score model responses, providing detailed feedback on product...

About The Role What if the code you write could directly shape how the next generation of AI understands and generates software? We're looking for Software Engineers in London to build, evaluate, and improve AI-generated code — helping train AI systems to think like real developers. You'll write solutions, review AI outputs, and provide the expert-level feedback that makes AI coding assistants smarter, safer, and more reliable. This is hands-on engineering work at the frontier of AI development — not theoretical, not bureaucratic, and not boring. This is a fully remote, flexible contract role. If you can write clean code and explain your reasoning, we want to hear from you. Organization: Alignerr Type: Hourly Contract Location: Remote Commitment: 10–40 hours/week What You'll Do Write, debug, and optimize code across a range of languages, frameworks, and problem domains Review and evaluate AI-generated code for correctness,...

Job Description Job Title - IQA (Internal Quality Assurer) for ICT and Data Apprenticeships Location - Remote working Position - Freelance Reports to - Head of Training and Quality About the Organisation We are an grade 2 ‘good’ national training provider based in Leicester established since 2006. We deliver further education and provide employment opportunities through our Apprenticeships programmes. After recently achieving our OFSTED grade 2 ‘good’ - We are on a mission - to become an Outstanding high performing work-based training provider meeting the needs of each individual learner empowering them to succeed, progress and thrive in their chosen career path. To support employers in providing quality, meaningful learning opportunities for new and existing team members. Our vision is to provide and deliver our training programmes with positive qualification outcomes, by fulfilling legislation and regulation as a minimum...

AfterQuery is seeking experienced Product Managers to create and evaluate product-management reasoning challenges for our AI training modules. In this remote, flexible role, you will design realistic product scenarios — prioritization calls, spec reviews, stakeholder trade-offs — that test an AI model’s ability to reason like a strong PM, and grade model responses against real product judgment. Why Apply Competitive Compensation: attractive hourly rates that reward your specialized expertise Innovative Impact: join a YC-backed startup revolutionizing AI with high-caliber expert content and insights Flexible Engagement: a remote, asynchronous role that lets you contribute to pioneering projects on your own schedule Responsibilities Develop product cases, PRD critiques, and prioritization exercises that challenge AI models on realistic product decisions Evaluate and score model responses, providing detailed feedback on product...

About The Role What if your years of software engineering experience could directly shape how AI writes code for millions of developers? We're looking for Software Engineers in London to evaluate, rank, and refine AI-generated code — helping the next generation of coding assistants produce solutions that are correct, efficient, idiomatic, and production-ready. Your deep understanding of software architecture, design patterns, and real-world engineering trade-offs is exactly what AI models need to get better. This isn't about writing boilerplate — it's about applying expert judgment to push the boundaries of what AI can do with code. This is a fully remote, flexible contract role built for experienced developers who want meaningful, high-impact work on their own schedule. Organization: Alignerr Type: Hourly Contract Location: Remote Commitment: 10–40 hours/week What You'll Do Review and rank AI-generated code solutions across...