Backend Developer Python Nodejs Jobs in UK

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Software Engineer – Internal Platform & Developer Tooling

Lawrence Harvey is looking for a Software Engineer to join their internal engineering team in London. The role emphasizes building internal tools and platforms that enhance developer productivity across the organization. Responsibilities include designing and developing systems that support CI/CD pipelines, work ...

Graduate Quant Developer — Build Trading Systems & Models

Hunter Bond is seeking a Graduate Software Developer/Quantitative Developer to kickstart a career in technology and quantitative finance in Greater London. The role involves designing and enhancing trading systems, developing quantitative models, and collaborating with top talent in a high-performance environmen ...

Senior Frontend Engineer

Senior Frontend EngineerPermanent | Full-Time | Hybrid A rapidly growing technology scale-up operating in the safety and security sector is developing advanced cloud-based platforms and AI-driven software solutions used by large enterprise clients across regulated and mi ...

Senior Software Engineer: Backend & Microservices (Java)

A leading EdTech company based in London is seeking a Senior Software Engineer to design and build scalable systems. In this role, you'll work on backend architecture, APIs, and data systems while collaborating with a global engineering team. Ideal candidates should have strong experience with Java, Python, and ...

Senior Backend Engineer Scale Impact, Stock Options

A leading financial technology firm in Greater London seeks a Senior Backend Engineer to enhance their product development. The ideal candidate will possess over 5 years of experience in software engineering and be skilled in Python and related technologies. Responsibilities include designing scalable systems an ...

Senior Backend Architect (Django/AWS) – Lead Platform

A financial technology company in Greater London is seeking a Mid-Senior level Software Engineer to lead the backend development of their investment reporting platform, Serpentine. The role involves 10+ years of Python development experience, with strong expertise in Django. You will be responsible for architect ...

Full Stack AI Interfaces Engineer (Prototype Driven)

A pioneering tech company in London is looking for a candidate to rapidly prototype AI interfaces and translate experimental concepts into robust applications. Successful candidates should possess deep knowledge of React, Next.js, and backend technologies like Node.js or Python. The role demands a collaborative ...

Full Stack Engineer — Platform Performance

A leading freelancing platform is looking for a Full Stack Software Engineer in London. In this role, you will work across the stack to optimise performance through frontend and backend technologies. Candidates should have 2-4 years of experience, strong skills in Angular and TypeScript, as well as familiarity w ...

Client Facing Deployment Engineer

A dynamic technology firm in Greater London seeks experienced backend or full-stack professionals. The role involves working directly with clients to build customized solutions and integrating with various systems. Ideal candidates will have over 5 years of experience in Python and TypeScript, possess strong com ...

Senior Backend Engineer — Healthcare Data Platform (London)

A healthcare technology company is seeking a software engineer to build backend systems for managing large healthcare datasets and developing APIs for its marketplace. The ideal candidate will have over 3 years of experience in software engineering, strong programming skills in Python or TypeScript, and an abili ...

Senior Backend Engineer Healthcare Data Marketplace

A healthcare data platform company is seeking a Software Engineer to enhance backend systems for healthcare data management. The ideal candidate has over three years of experience, strong programming skills in Python, and comfortable with both structured and unstructured data. This role offers competitive compen ...

Full‑Stack Engineer: Python, APIs & Data Platforms

A leading fintech start-up is looking for a Backend Engineer to design systems and enhance functionality within their platform. The role involves working with Python, Docker, and AWS to improve data processing and automation. The ideal candidate has strong collaboration skills, experience with API design, and ca ...

Senior Backend Engineer, Remote — Adaptive Telemetry

A leading observability platform is hiring a Staff Backend Engineer for Adaptive Telemetry. In this remote role, you will drive technical strategies, ensure system reliability, and mentor engineers. Preferred candidates will have experience in distributed systems and cloud-native architectures, and proficiency i ...

Subscriptions Backend Engineer — Scale Premium Memberships (Visa)

A leading software company is looking for a Backend Engineer to join their Subscriptions team. This role involves building systems that power premium memberships for millions of users globally. Key responsibilities include designing and scaling subscription services, payment integrations, and billing infrastruct ...

Defence Tech Lead: Backend & AI Engineer (SC Eligible)

A cutting-edge AI company in Greater London seeks a Lead Software Engineer to spearhead backend and edge/IoT engineering for Defence projects. This role requires leading a team, designing complex components, and implementing CI/CD processes. Proficiency in Python and at least one compiled language is essential. ...

Threat Modeling Platform Engineer

A leading technology company in Cambridge is seeking a Software Engineer to build an internal threat modeling platform for security development. Responsibilities include designing and enhancing platform capabilities, collaborating with engineering teams, and contributing to reliability and scalability improvemen ...

Senior Fullstack Engineer — Global Commerce Platform (Remote)

A leading audio streaming service is looking for a Senior Fullstack Engineer to enhance its payment infrastructure. The role involves architecting and implementing backend services using Java and Python to ensure payment processing across their platform. The ideal candidate is experienced in modern JavaScript, c ...

Senior Backend Engineer: AI APIs & Scalable Infra

A leading technology company in Greater London is seeking a Senior Backend Engineer to work on advanced AI systems. The role involves building scalable APIs and improving inference infrastructure while collaborating with AI researchers. The ideal candidate will have strong skills in Python and Go, along with kno ...

Senior AI Engineer: Generative ML & Platform Innovator

A leading fintech company in Greater London is seeking a Senior AI Engineer to drive the adoption of Generative AI technologies. The role involves mentoring peers, setting engineering practices, and designing AI solutions with cross-functional teams. Candidates should have hands-on experience with LLMs and stron ...

Founding ML Engineer: Build the Talent Matching Engine

A tech company based in Greater London is seeking an ML Engineer to develop an AI-driven talent matching system. You will own the matchmaking engine, build embedding models, and ensure reliable backend services. The ideal candidate has strong expertise in Python and ML foundations along with practical production ...

Azure AI Engineer: Build Production Ready Gen AI Apps

A data and AI consultancy is looking for an AI Engineer to join their London team. This role involves implementing AI solutions, developing backend services and REST APIs in Python, and building AI applications. Candidates should have a solid background in software engineering, experience with Azure services, an ...

Full Stack Engineer: Pre Trade Analytics & UI (London)

A leading hedge fund in London is seeking a Full Stack Engineer to join their team. You will contribute to high-impact initiatives and develop web-based trading platforms for pre-trade decision-making and risk evaluation. The ideal candidate has strong skills in TypeScript and React, experience with backend lang ...

Backend Engineer, Crypto Trading (Hybrid London)

A leading technology company in London is seeking a Software Engineer to design and maintain backend services for crypto trading. This role requires expertise in Go, Java, C++, C#, or Python, and offers a hybrid work environment. Ideal candidates will have problem-solving skills and a proactive mindset, along wi ...

Hybrid Python Senior Software Engineer

We are hiring a Senior Software Engineer to lead end-to-end feature development and architectural design. This role is built for a technical leader who prioritizes high-impact delivery over routine maintenance. Tech Stack Backend: Python, FastAPI, Ruby on Rails Frontend: React.js, Next. ...

AI Driven Backend Engineer — Cloud Native & Scalable

Faculty is seeking skilled engineers in Greater London to develop the cutting-edge AI platform, Frontier. This role emphasizes backend services and cloud infrastructure. You will collaborate with cross-functional teams to create scalable software solutions in Python while engaging in Agile practices. Ideal candi ...

Backend Engineer II — High Scale Distributed Systems (Equity)

Software Careers is seeking a Software Engineer II in London to take ownership of high-scale backend infrastructure. This role involves working with distributed systems processing over 1 trillion queries daily and solving complex algorithmic challenges. Ideal candidates should have proficiency in C#, Java, C++, ...

Hybrid Software Engineering Lead Risk & Regulatory

A leading online gaming company in Stoke-on-Trent is seeking a Software Development Team Leader to drive innovation and mentor a talented team. You will oversee the software development life cycle while navigating a fast-paced environment. Key qualifications include expertise in backend languages such as .Net or ...

Lead Software Engineer Data & Graph Platform

The UK Dementia Research Institute is seeking an enthusiastic Software Engineer to lead the development of DataMap, a platform to extract knowledge from biological datasets. This hybrid role requires expertise in data-intensive applications, including API design, backend services using Python, and web UI develop ...

Senior Data Architecture Lead Backend Systems

Citi is seeking a Data Architecture Lead Analyst in Greater London. This senior technical role is responsible for establishing and implementing backend application systems designs, leading database program development using technologies like Python, Oracle, and Snowflake. The ideal candidate will have proven exp ...

Senior Python Engineer Real Time Data, Remote & Equity

Vortexa Ltd is seeking a talented engineer to design and build robust data processing infrastructure in a fast-paced environment. The role includes ensuring data pipeline reliability and collaborating with engineers and data scientists. Candidates should have experience in Python, distributed systems, and backen ...

Senior Technical Project Manager – AWS/Python

A technology company in Nottingham is looking for an experienced Project Manager to lead projects with a strong focus on AWS Cloud services and Python. The ideal candidate will have over 10 years of experience in project management and proven skills in backend frameworks such as Django. This hybrid position requ ...

Hybrid Senior Frontend Engineer — Full Stack AI Platform

Oritain Global Limited is seeking a Senior Frontend Engineer to work in a hybrid environment in London. The ideal candidate will build modern React frontends and robust Python backend services while ensuring reliable production systems. Responsibilities include mentoring junior engineers and using AI-assisted de ...

Senior Full Stack Engineer for AI Platform & Data Viz

Retelligence in Greater London seeks a motivated Full Stack Engineer to join a senior team building advanced AI platforms. The role encompasses managing the entire feature lifecycle, from backend services to interactive frontend experiences. Candidates should excel in Python and TypeScript with a strong grasp of ...

Founding Senior Software Engineer, AI in Healthcare

A British healthtech startup is seeking a mid-senior level engineer to develop an AI co-worker that enhances care coordination in healthcare systems. The role is full-time and based in Central London. Responsibilities include collaborating with users, designing product features, and working with backend technolo ...

Backend Engineer for AI Driven Sports Analytics

A leading sports analytics company in the UK is seeking a Backend Software Engineer to join their team. This role involves developing innovative insights for tennis analytics, managing databases, and deploying APIs for broadcast partners. Ideal candidates will have experience in Python, cloud technologies like A ...

Junior Developer

Role: Junior DeveloperLocation: Norfolk (1 day a week onsite)Salary: Up to £40,Are you a talented Developer looking for your next challenge in an innovative, forward-thinking company? We're working with a specialist software provider to find a skilled C#/.NET Develope ...

.NET Developer (.NET Coder)

LocationBasildon, UK , United Kingdom# .NET Developer (.NET Coder) at N Consulting LtdLocationBasildon, UK , United KingdomSalary£300 - £350 /dayJob TypeContractDate PostedApril 15th, 2026Apply NowRole: .NET Developer (.NET Coder) Location: Basildon, UK (Onsite) Duration: ContractRole OverviewWe are looking fo ...

Junior Developer

Role: Junior DeveloperLocation: Norfolk (1 day a week onsite)Salary: Up to £40,Are you a talented Developer looking for your next challenge in an innovative, forward-thinking company? We're working with a specialist software provider to find a skilled C#/.NET Develope ...

Application Developer

Application Developer - Stock Management ApplicationContract Length: 3 monthsRate: £400 per day (Outside IR35)Location: Newark (1 day per week onsite) OverviewWe are seeking an experienced Application Developer to support the development of a stock management application. You'll w ...

Application Developer

Application Developer - Stock Management ApplicationContract Length: 3 monthsRate: £400 per day (Outside IR35)Location: Newark (1 day per week onsite) OverviewWe are seeking an experienced Application Developer to support the development of a stock management application. You'll w ...

Staff Software Engineer

Staff Software Engineer Salary: £130K – £140K + Equity Location: London in office Data Idols are working with a rapidly scaling software company who are looking for a Staff Software Engineer to join their team. The product sits at the intersection of AI systems, comple ...

Senior Software Engineer

Senior Software Engineer (Backend)London - Hybrid (3 days in office)Up to £85k + benefits What if the systems you built were used every day by millions of readers around the world? A long‑established, AI‑driven technology business is hiring a Seni ...

Senior Software Engineer

Senior Software Engineer (Backend)London - Hybrid (3 days in office)Up to £85k + benefits What if the systems you built were used every day by millions of readers around the world? A long‑established, AI‑driven technology business is hiring a Seni ...

Full Stack Engineer

Overview Fullstack Software Engineer – London-based role hiring on behalf of Understanding Recruitment. Salary: £140k+ stock options + exceptional benefits. Location: London based team. This is a cutting-edge tech company reimagining how software gets built by combining full-code flexibility ...

Full Stack Engineer (£75k £100k + Equity) at Aisy.ai

Job Title: Full Stack Engineer Salary: £75k–£100k + Equity Company Description: Aisy.ai - Seed-funded AI-native cybersecurity startup Job Description: You will join as a founding engineer building an AI engine that prioritizes cybersecurity threats th ...

Full Stack Engineer

Senior Full Stack Software Engineer | London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django) Fr ...

Full Stack Engineer

Senior Full Stack Software Engineer | London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django) Fr ...

Full Stack Engineer

Senior Full Stack Software Engineer | London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django) Fr ...

Full Stack Engineer

Senior Full Stack Software Engineer | London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django) Fr ...

Full Stack Engineer

Senior Full Stack Software Engineer | London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python ...

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