Python Software Developer Backend Jobs in UK

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Backend Engineer

Pelago is the world’s leading virtual clinic for Substance Use Management. Our program provides guidance, support and treatment for members seeking to overcome their tobacco, alcohol and opioid use. From unhealthy habits to active substance use disorders, Pelago delivers a personalized solution based on in ...

Backend Engineer

Overview Octopus Energy started with a bold idea: to build Britain’s first truly digital energy supplier. By combining world-class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain’s lar ...

Backend Engineer

We are looking for a Backend Engineer to join our partner company! You will play a key role in building the next generation of infrastructure that powers innovation across industries like manufacturing, aerospace, healthcare, and energy.This is a rare opportunity to work on cutting-edg ...

Backend Engineer

Grow your ownership by building and running core services Boam AI builds managed data solutions that transform messy, unstructured signals from public, private, and proprietary sources into structured, reliable, and always up-to-date intelligence on millions of SMBs and enterprises worldwid ...

Backend Engineer

xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We ...

Backend Engineer

Blink is an employee app for frontline workers, with industry-leading engagement and a DAU of 99%. We’re dedicated to scaling our platform through precision, automation, and innovation. As part of a world-class engineering team, you’ll play a key role in shaping the future of how we support frontline worke ...

Backend Intern

Toddle is a teacher-built, AI-first teaching and learning platform designed to go beyond traditional LMS systems. Our mission is to help educators streamline their workflow, from curriculum planning and assessments to student portfolios, gradebooks, progress reports, and family communication—all within one ...

Backend Engineer

Backend Engineer (Node.js / AWS) Remote - Ireland / Northern Ireland Only €50,000 - €55,000 I'm working with an early-stage Irish company in the climate tech space, already live with customers and now pushing hard to scale their platform. ...

Backend Developers

Backend Development: Set up and maintain the backend server using Flask to support the application, ensuring scalability, security, and efficiency Seniority level Entry level Employment type Full-time Job function Engineering and ...

Backend Engineer

Wide and Wise is a top recruitment agency with offices in Istanbul, Milan, and Dubai, connecting exceptional talent with leading companies across EMEA, MENA, and the US.We are looking for a Backend Engineer to join our partner company! </stron ...

Backend Engineer

Backend EngineerTeam: Engineering & DataLocation: Depop - LondonCompany DescriptionDepop is the community-powered circular fashion marketplace where anyone can buy, sell and discover desirable secondhand fashion. With a community of over 35 mi ...

Backend Engineer

About Nothing Nothing exists to make tech feel exciting again. We’re building a different kind of technology company, one that puts design, emotion, and human creativity at the heart of everything we do. From the way our products look and feel to how we communicate and show up in cult ...

Backend Engineer

Robert Half Technology are assisting a global market leading e-commerce organisation to recruit a Backend Engineer on a 6 months contract basis. Hybrid working - London basedAs a Backend Engineer, you will build and scale services that enable internationalisation and support integration of new pla ...

Backend Engineer

As a Backend Engineer, you will take real ownership of the systems that power a fast-growing LLM-native product. This is a hands-on role focused on building reliable, high-performance backend services while shaping the foundations of a small, senior engineering team.What You Will Do<p ...

Backend Engineer

Min Experience: 5 yearsLocation: UKJobType: full-timeWe are looking for a Backend Engineer with strong expertise in Python and FastAPI to build scalable, high-performance systems in an AI-driven environment. This role focuses on developing backend services that power intelligent au ...

Backend Engineer

This role is for one of the Weekday's clientsSalary range: Rs 13000000 - Rs 16000000 (ie INR 130-160 LPA)Min Experience: 5 yearsLocation: LondonJobType: full-timeWe are seeking a Senior Backend Engineer to build and scale intel ...

Backend Engineer

Robert Half Technology are assisting a global market leading e-commerce organisation to recruit a Backend Engineer on a 6 months contract basis. Hybrid working - London basedAs a Backend Engineer, you will build and scale services that enable internationalisation and support integration of new platform ...

Backend Engineer

Software Engineer / C# / Backend / APIs / Software / Cardiff / Permanent / Hybrid /Vivo Talent is working with a business that has huge growth plans for this year. We're actively working with them to recruit a backend engineer into their team, with strong hands-on experience with C# to help build and evo ...

Backend Engineer

Senior Backend Engineer (Security Compliance) - 100% RemoteThe Role Join a high-autonomy team as a senior contractor architecting the next generation of our security compliance platform. You will own technical decisions end-to-end, building systems that ensure every production code change meets regulator ...

Senior Software Engineer (AppGlass)

At JetBrains, code is our passion. Ever since we started, back in 2000, we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create. One of the projects ...

Senior Software Engineer (Live Debugger for the JVM)

At JetBrains, code is our passion. Ever since we started, back in 2000, we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create. One of the projects ...

Senior Software Engineer I, Infrastructure London, England, United Kingdom London, England, Uni[...]

Location: London, England, United Kingdom Join Axon and be a Force for Good. Your Impact What You’ll Do Work Location: This role is based out of our London office and follows a hybrid schedule. We rely on in-person collaboration and ask that team member ...

AI Backend Engineer: LLMs, AI Agents & MLOps

Moody is searching for an AI Software Engineer specializing in backend software development using Node.js and Python. The role includes designing production-grade software solutions leveraging machine learning techniques such as large language models and natural language processing. The ideal candidate has over ...

AI Backend Engineer: LLMs, AI Agents & MLOps

Moody is searching for an AI Software Engineer specializing in backend software development using Node.js and Python. The role includes designing production-grade software solutions leveraging machine learning techniques such as large language models and natural language processing. The ideal candidate has over ...

Software Engineer II

Overview VoucherCodes, a key part of Ziff Davis Shopping, is looking for a Software Engineer II to join our Engineering team in London. In this hybrid role, you will join a collaborative squad of over 25 UK‑based engineers within a global team of 50+, reporting to an Engineering Manager. ...

Software Developer – High Performance I/O & Storage Systems

Software Developer – High-Performance I/O & Storage Systems Viridien is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. The role focuses on developing high-performance backend services and APIs that integra ...

AI Engineer (Remote) (Cardiff)

About The Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactiv ...

AI Evaluation Engineer (Remote) (Cardiff)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

Generative AI Engineer (Remote) (Glasgow City)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

Technical Consultant (Remote) (Leeds)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

AI Software Engineer (Remote) (Leeds)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

Applied AI Engineer (Agentic AI) Remote (Sheffield)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

AI Safety Engineer (Remote) (Cambridge)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

GenAI Engineer (Remote) (Birmingham)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

Contract Software Engineer (Remote) (Manchester)

Job Description About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?We collaborate with leading AI organizations to train L ...

AI Evaluation Engineer (Remote) (Manchester)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

AI Agent Engineer (Remote) (Belfast)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Technical Consultant (Remote) (Bristol)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

AI Automation Engineer (Remote) (Glasgow City)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Software Engineer AI Technologies (Remote) (Liverpool)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Full Stack Engineer (Remote) (City of Edinburgh)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Software Engineer AI Technologies (Remote) (Oxford)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Freelance Software Engineer (Remote) (Birmingham)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Contract Software Engineer (Remote) (Manchester)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

QA Engineer (AI Applications) (Remote) (Cardiff)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

AI Red Team Engineer (Remote) (Coventry)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

AI Quality Engineer (Remote) (Belfast)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Software Engineering Consultant (Remote) (Liverpool)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

AI Agent Developer (Remote) (Belfast)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

Independent Software Engineer (Remote) (Belfast)

About the ProjectFind out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want toshape the future of autonomous agents like OpenClaw?We ...

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    Python Software Developer Backend Jobs in United Kingdom Job Search Guide, Trends and Insights