Python Software Developer Backend Jobs in UK

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Python Developers

Position Description: CGI’s Space, Defence and Intelligence business unit focuses on delivering contemporary and innovative technical solutions to government agencies tackling some of the most complex challenges. We design, build, and operate bespoke, mission-critical systems that help ke ...

Python Developers

Position Description: CGI’s Space, Defence and Intelligence business unit focuses on delivering contemporary and innovative technical solutions to government agencies tackling some of the most complex challenges. We design, build, and operate bespoke, mission-critical systems that help ke ...

Python Engineer

Salary: up to £200k base + bonusSummaryMy client is a leading global quant firm looking for a no-nonsense technologist to join one of their growing quant trading teams based in London. This team is one of the most experienced and profitable at the company.Collabo ...

Python Engineer

We have a fantastic new opportunity to join our team at Smartodds as a Python Engineer.  Based in North London, Smartodds provides in-depth research and analysis on sporting events around the world, supported by world-class, bespoke software platforms.We are proud of our collaborative and dyna ...

Python Engineer

Salary: up to £200k base + bonusSummaryMy client is a leading global quant firm looking for a no-nonsense technologist to join one of their growing quant trading teams based in London. This team is one of the most experienced and profitable at the company.Collabo ...

Senior Front end Software Engineer ( React, Bazel And Java )

Senior Front-end Software Engineer (React, Bazel and Java) You must live in the UK – also sponsorship is not provided. The organization manages the test infrastructure and tooling that underpin its client applications. The mission is to provide a reliable, consistent and efficient ...

AI Engineer

Job Description Role Summary We are looking for a AI(Fullstack) Engineer to help evolve IFS.ai Logistics into an agent‑first, AI‑native product . This is not a traditional “add AI to an existing system” role. You will design and build LLM‑powered ...

Full Stack AI Engineer — Hybrid, Impactful ML Solutions

A leading AI solutions company in London is seeking a Full Stack Software Engineer to build and scale AI-powered systems. You will create scalable architectures, lead cross-functional teams, and mentor junior engineers. Ideal candidates have extensive experience in TypeScript, strong backend skills in Python, an ...

Senior GenAI Engineer: Build Enterprise AI Features

Anaplan is seeking a Senior GenAI Engineer to develop innovative AI features and applications that enhance business planning. The role includes backend API development, model integration, and building user-friendly interfaces. Candidates should have strong Python skills, experience with LLMs, and a background in ...

Software Engineer Data Platform for Trading

Overview London Area, United Kingdom (Hybrid – 3 days onsite) Contract Type: 6 month Inside IR35 The Role You will support the evolution of a large-scale financial data platform, modernising legacy enterprise systems while building scalable cloud-based services on AWS. O ...

Full Stack Engineer

Overview This range is provided by Tech Talent Partners. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Full Stack Software Engineer - London (Hybrid) - Founding Team Member A leading UK based technology company ...

Generative AI Engineer

Canary Wharf (4 days/week on-site) We are recruiting on behalf of an exciting end client who is building high-impact AI-powered applications that deliver real business value at speed — and they need engineers who think holistically, automate relentlessly, and are fluent in the fast-moving world of ...

Software Developer – Distributed Scheduling & Workload Orchestration

Job Details Software Developer – Distributed Scheduling & Workload Orchestration Viridien is seeking a Software Developer responsible for designing, building, and improving systems for job scheduling, resource allocation, and workload orchestration across distributed environments. A ...

Senior Full Stack Engineer (Python/React) — Remote & Equity

A leading technology company in the UK seeks a Senior Full Stack Engineer. You will contribute to developing a voice assistant platform, implementing scalable infrastructure, and working across the stack from UI to backend. Ideal candidates have 3+ years in software engineering, proficiency in Python and React, ...

Senior Quant Software Developer : Elite Quant Fund : Python/C++ : £150 200k base plus huge bonus

We are partnering with one of London’s most selective and highest-performing quantitative investment funds to appoint a Senior Quant Software Developer to their core systematic trading group. This is a confidential mandate for a team renowned for world-class engineering standards, scientific rigour, and a ...

Software Engineer

Software Engineer Contract to Permanent Hybrid (London) Rates negotiable Most backend systems look fine on paper until they hit production. This role is about building services that actually w ...

Lead Software Engineer

Lead Software Engineer Contract to Permanent Hybrid (London) Rates negotiable Most streaming platforms struggle to scale backend systems properly you’ve seen it. This role is about building ...

Senior Full Stack Developer

Senior Full-Stack Developer Location: London (Hybrid) Industry: FinTech Startup Employment Type: Full-timeAbout the Company We are a fast-growing fintech startup building modern financial products that simplify how businesses and consumers manage money. Our ...

Senior Full Stack Developer

Senior Full-Stack Developer Location: London (Hybrid) Industry: FinTech Startup Employment Type: Full-timeAbout the Company We are a fast-growing fintech startup building modern financial products that simplify how businesses and consumers manage money. Our ...

Senior Python Engineer | Django, AWS & DevOps

A technology company based in the United Kingdom is seeking a Python Developer to build and maintain scalable Python applications. The ideal candidate will work closely with front-end teams and be responsible for developing features, integrating APIs, and ensuring code quality. Knowledge of Django, AWS, and DevO ...

Application Software Engineer – JavaScript

Application Software Engineer – JavaScriptA fantastic opportunity for talented Software Developers, to join an industry-leading software company in either London or Cambridge offering the opportunity to work on a wide variety of web application infrastructure projects us ...

Application Software Engineer – JavaScript

Application Software Engineer – JavaScriptA fantastic opportunity for talented Software Developers, to join an industry-leading software company in either London or Cambridge offering the opportunity to work on a wide variety of web application infrastructure projects us ...

Senior Developer

* Senior Developer * Permanent (must have or be able to obtain SC Clearance) * Redhill, Surrey * Up to £60,000 Per Year * Plus an excellent benefits package (including Pension, Bonus, Training and Development, Healthcare, etc.)Skills and Experience: * Ability ...

Senior Developer

* Senior Developer * Permanent (must have or be able to obtain SC Clearance) * Redhill, Surrey * Up to £60,000 Per Year * Plus an excellent benefits package (including Pension, Bonus, Training and Development, Healthcare, etc.)Skills and Experience: * Ability ...

Lead Software Engineer Al Product development

We are looking for a Lead Software Engineer - Al Product development to join our AI Engineering team in Barcelona. This is an exciting opportunity to work on cutting-edge AI-powered software, building reliable, scalable solutions that leverage Python, cloud technologies (Azure/AWS), microservices, and ...

Lead Software Engineer Al Product development

We are looking for a Lead Software Engineer - Al Product development to join our AI Engineering team in Barcelona. This is an exciting opportunity to work on cutting-edge AI-powered software, building reliable, scalable solutions that leverage Python, cloud technologies (Azure/AWS), microservices, and ...

Greenfield Python Platform Engineer for Quant Research

A leading quantitative trading firm is seeking a Software Developer to build a Python-based research platform from the ground up. This role involves collaborating directly with researchers and requires advanced Python skills and system design expertise. Ideal candidates will have 2-10 years of experience in engi ...

Senior Python Engineer: Audio & Signal Processing

A market research organization is looking for a Python Developer focused on audio and signal processing to join their team in Cambridge. This role involves conducting significant research, developing core software, and mentoring team members. Candidates should have strong Python skills and experience in audio pr ...

C# Developer.Net AWS AI Finance

C# Developer / Software Engineer (.Net AWS AI) London / WFH to £80kAre you a C# Developer with finance experience?You could be progressing your career at a boutique Asset Manager that specialise in Fixed Income markets and have multi-billion dollars under management.What's in it ...

C# Developer.Net AWS AI Finance

C# Developer / Software Engineer (.Net AWS AI) London / WFH to £80kAre you a C# Developer with finance experience?You could be progressing your career at a boutique Asset Manager that specialise in Fixed Income markets and have multi-billion dollars under management.What's in it ...

Contract Full Stack Engineer – National Security (eDV)

Forwardrole is seeking a Full Stack Software Engineer for a contract role focusing on national security projects. Located in Hampshire, Cheltenham, or Manchester, the role involves developing applications using TypeScript and backend services in Python and Go. Candidates must hold active eDV clearance, showcasin ...

Senior Python Engineer

This range is provided by Corecom Consulting. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Senior Python Engineer (Fully Remote, UK) Contract: Permanent Location: Fully remote (UK) with optional in-person ses ...

Senior Python Engineer – Mortgage Analytics & Automation

A leading hedge fund in London is seeking an experienced Software Developer to join their Technology team. You will design and deliver production-grade Python applications to automate workflows. The ideal candidate has strong Python skills and experience in business-facing environments. You will enjoy a competit ...

Cloud EnginSenior Software Engineer | Full Stack | React/Python/AWSeer

Senior Software Engineer | React, Python, AWS | Real-time Data Intelligence Platform Full stack (flexible on lean) Location: Hybrid (London, Oxford or Cambridge) We’re working with an early stage technology company building a production grade data platform for real time systems an ...

Senior Python Data Platform Engineer

Description Do you want to work to make Power for Good?We're the world's largest independent renewable energy company. We're guided by a simple yet powerful vision: to create a future where everyone has access to affordable, zero carbon energy. D ...

Software Developer Full‑Stack .NET Developer (Back‑End Focus)

Software Developer - Full‑Stack .NET Developer (Back‑End Focus) Location: Hybrid (London) – minimum 2 days per week in the office, including Wednesdays Type: Permanent/Full Time Reports to: Technical Lead About Us Beacon is Hanson Wa ...

Lead Software Engineer

Overview Support Consultant at Oliver Bernard | Specialising in building High-Performance Python, Data & AI teams across the UK and Europe Lead Software Engineer - Python, Java, Go, AWS, Terraform OB are partnered with a Series A funded scale-up, who work with some of the mos ...

Senior Software Engineer

About The Role As a Senior Software Engineer in our Defence business unit, you will lead backend and edge/IoT engineering for critical work streams, implementing robust, scalable patterns. You’ll bridge the gap between machine learning research and production‑grade software, raising the technical ...

Principal Software Engineer

I am looking for a Principal Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Princip ...

Senior Software Engineer

I am looking for a Senior Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Senior Sof ...

Principal Software Engineer

I am looking for a Principal Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Princip ...

Senior Software Engineer

I am looking for a Senior Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Senior Sof ...

Software Engineer

£40,000 - £45,000 per annum (depending on experience) Hours Flexible working available Hybrid working available after 6-month probation About the Opportunity Bolt Technical are recruiting on behalf of our client for a Back End Software Developer to join their growing ...

Senior Backend Engineer (Free to Play Games)

Why Midnite Midnite is a next generation sports betting and gaming platform built for a new wave of players. We combine sharp product thinking, bold brand, and fast execution to create experiences that feel modern, intuitive, and built for how people actually play today. Over 400,000 players have ...

Senior PHP Developer

Senior Back-end Developer - PHP / Symfony Location: Leeds (Hybrid – 2 days per week onsite, Monday & Thursday) Salary: Up to £65,000 (DOE) The opportunity: We’re looking for a Senior Back-end Developer, with expertise in PHP and Symfony to join a growing technology team building moder ...

Software Engineer, Forward Engineering – Data & UX

A global software company in the United Kingdom is seeking a software developer to work on the Spotfire platform. The role involves using technologies such as C#, .NET, Python, and TypeScript while collaborating closely with customers to understand their business needs. Ideal candidates will excel in programming ...

Remote Senior CodeQL Engineer — AI Powered Code Analysis

GitHub, Inc. is looking for a Remote Software Engineer to expand and maintain code analysis engines. Candidates should have at least 6 years of software engineering experience in languages like C, C++, and Python. Responsibilities include collaborating across teams to enhance product direction and engaging with ...

Full Stack Engineer

Full Stack Software Engineer | London | £60,000 - £73,000 + equity | Python | Vue.js | AI Product Location: London based, hybrid (1 day per week) A growing product led technology company is building a platform at the intersection of AI, ...

Senior Backend Engineer — AI Platform (Hybrid London)

A growing AI startup in London seeks a Staff/Senior Backend Engineer to build robust systems for their AI platform. Candidates should have 4+ years of experience in software engineering, especially with technologies like Python and FastAPI. The role is hybrid, requiring in-person work four days a week, and offer ...

Backend Engineer in London LA International Computer Consultants Ltd

Staff-Level Full-Stack Software Engineer Location: 108 E 16th Street, New York, NY 10003 Salary: £130,000 - 143,000 per year Requirements: Strong experience building secure, scalable backend systems in Python and/or Go Deep understanding of contai ...

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