Backend Developer Python Nodejs Jobs in UK

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

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 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 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 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 ...

Lead Software Engineer Hardware Design Platform|Flexible

Circuit Mind is seeking a Lead Software Engineer in Greater London to take full ownership of backend development across their products. You will collaborate with various engineering teams to tackle challenges in hardware engineering, leveraging a modern tech stack including Python, PostgreSQL, and more. This pos ...

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 ...

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 ...

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 Backend Engineer: Accounting Integrations & Reporting

Deepstreamtech is seeking a Backend Engineer in Greater London to enhance accounting integrations for business customers. This role involves improving reliability, reporting capabilities, and localizing offerings to meet regional demands. Successful candidates will have strong programming skills in Java, Python, ...

Senior Full Stack Engineer – Remote, Equity & Growth

PolyAI is seeking a Senior Full Stack Software Engineer to lead API design, build robust features using Python and React, and mentor junior developers. The role involves cross-functional teamwork and promotes high coding standards. Candidates should have over 5 years of backend development experience, knowledge ...

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 AEM Developer

Are you an AEM Developer looking for a remote opportunity to work with a growing digital marketing agency that helps some of the top global life science companies? Supreme Optimization is looking for a Senior AEM Developer to help support our growing client base with enterprise-level content manage ...

AI Reliability & Test Automation Engineer

We are building real-time conversational AI systems powered by LLMs, ASR, and TTS. Our products evolve quickly, with new services, workflows, models, and customer-facing features constantly being developed. We are looking for an AI Reliability & Test Automation Engineer to work directly within the LLM AI t ...

.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 ...

Research Development Software Engineer

Title : Research Development Software EngineerLocation: Cambridge, UK- 50 % on siteEnd date: 30th June 26 (12 months intent)Location: A minimum of 50% per week is expected onsite rising to 60% at some point in the future.Required * Strong software engineering skills in Py ...

Software Engineering Full Stack Developer (Java) Professional Multiple Cities

At IBM Consulting UK FutureNow, you’ll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors. You’ll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and deliver solutions that ...

Founding Engineer

Founding EngineerAn exceptional opportunity for a Founding Engineer to join a highly innovative, early-stage AI start-up in Cambridge, working alongside a world-class founding team to build a next-generation enterprise AI platform from prototype to ...

SC Fullstack Software Engineer

Full Stack Software Engineer (National Security) Location: Manchester with access to multiple UK sites Salary: £50,000 – £85,000 depending on experience and SFIA grading Clearance: Active SC clearance required The Opportunity You’ll be joi ...

Frontend Developer (React.js)

RemoteStar is hiring a Frontend Developer (React.js) on behalf of a fast‑growing UK cybersecurity company delivering innovative solutions to protect businesses from digital threats. About the role As a React Developer, you’ll build modern, responsive, and secure web interf ...

Senior Python Engineer — Hybrid, Central London

Oliver Bernard is seeking an experienced Python Developer to join a leading global investment management firm in Central London. This hybrid role will involve designing and building internal frameworks, tooling, and platforms, with approximately 50% coding and 50% system design. Ideal candidates will have over 5 ...

Senior Python Engineer: AI Code Migration (Remote)

Mindrift is looking for a Senior Python Developer in Manchester to create functional black-box tests for AI projects. Candidates should have over 5 years of experience mainly in Python, expert Docker skills, and strong Linux knowledge. You will manage Docker environments, monitor code coverage, and leverage LLM ...

ML Infrastructure Engineer — Python & ML Pipelines

A technology recruitment agency is seeking a Software Engineer/Developer (ML Infrastructure) for a 12-month contract in Cambridge, UK. The role involves designing and maintaining machine learning tooling in Python, supporting research teams, and improving infrastructure systems. Ideal candidates will possess 4+ ...

Senior AI Architect — Python & Multi Agent Systems

A leading logistics technology company in Manchester is looking for an experienced Senior Python Developer. In this role, you will take ownership of designing and deploying advanced AI systems, tackling complex logistical challenges. The ideal candidate has over 5 years of experience in Python development and a ...

Senior Python Automation Engineer – Demo Data & Production

A leading technology firm in Greater London is seeking a Python Software Developer to design, develop, and maintain scripts for demo data publishing. You will work in a collaborative environment, assisting sales teams in demonstrating our services. The ideal candidate has extensive experience with Python and Pow ...

Remote Full Stack Engineer — AI Driven Python & React

A leading technology company in Scotland is looking for a Software Developer to work in a collaborative Agile Scrum team. This role focuses on developing scalable web applications using Python and React while integrating AI capabilities for client projects. The ideal candidate will have strong skills in full-sta ...

Power Trading Full Stack Engineer (Python/React)

Options Group is recruiting a Python Desk Developer in London to transform the applications landscape for the Power business. Candidates should have over 3 years of fullstack Python and Typescript React development experience, with a strong understanding of SQL databases. This role involves rapid prototyping and ...

Senior Python Engineer: Real Time Data at Scale

Partnerize in Leeds is looking for a skilled Software Developer to enhance their systems processing vast amounts of data efficiently and resiliently. The role entails developing scalable technologies using Python and extensive collaboration with architects to build fault-tolerant solutions. Candidates should pos ...

Python Tech Lead: Deliver & Architect Backends

Fundment is seeking a Lead Python Developer in Greater London to lead a team of 3-4 engineers. You will be responsible for hands-on development and technical leadership, ensuring delivery quality and reliable systems. The ideal candidate should have over 5 years of Python experience and a strong ability to commu ...

Senior Python Engineer: AI Code Migration (Remote)

Mindrift is looking for a Senior Python Developer in Manchester to create functional black-box tests for AI projects. Candidates should have over 5 years of experience mainly in Python, expert Docker skills, and strong Linux knowledge. You will manage Docker environments, monitor code coverage, and leverage LLM ...

Senior Software Engineer (Node.js / TypeScript / AWS)

Senior Software Engineer Our client. a fast-growing technology company is seeking a Senior Software Engineer to help architect and build a next-generation real-time platform from the ground up. Working closely with a small senior engineering team, you will design and deliver scalable back ...

Senior Software Engineer (Node.js / TypeScript)

Senior Software Engineer (Node.js / TypeScript / AWS) Our client. a fast-growing technology company is seeking a Senior Software Engineer to help architect and build a next-generation real-time platform from the ground up. Working closely with a small senior engineering team, you will des ...

Senior Developer C# React Investment Banking

About Talan At Talan, we deliver technology solutions in partnership with leading global clients. We are currently supporting one of our long standing clients in building and enhancing a front office risk and valuation platform used in a fast paced, real time environment. Job Descr ...

Senior Software Engineer (Node.js / TypeScript)

Senior Software Engineer (Node.js / TypeScript / AWS) Our client. a fast-growing technology company is seeking a Senior Software Engineer to help architect and build a next-generation real-time platform from the ground up. Working closely with a small senior engineering team, you will des ...

Senior Software Engineer (Node.js / TypeScript / AWS)

Senior Software Engineer Our client. a fast-growing technology company is seeking a Senior Software Engineer to help architect and build a next-generation real-time platform from the ground up. Working closely with a small senior engineering team, you will design and deliver scalable back ...

Senior Software Engineer (Node.js / TypeScript / AWS)

Senior Software Engineer Our client. a fast-growing technology company is seeking a Senior Software Engineer to help architect and build a next-generation real-time platform from the ground up.Working closely with a small senior engineering team, you will design and deliver scalable backend syste ...

Software Engineer III (Java / Spring)

Software Engineer III (Java / Spring) Are you passionate about building high‑performance backend systems?Do you thrive on solving complex engineering challenges with Java and Spring? About the team: Our team is dedicated to unlo ...

Lead Software Engineer

Lead Backend Engineer Node.js, TypeScript, PostgreSQL, APIs, Microservices, Docker, Kubernetes, AI/LLM Integration. London, United Kingdom Permanent Role: Competitive Salary + Equity A fast-growing AI startup is looking to hire a Lead Backend Engineer t ...

Senior Software Engineer (Cloud)

Are you a cloud-focused backend engineer who wants to build and secure modern cloud-native platforms at scale? My client is an emerging technology company operating in the cloud security space, building runtime-driven platforms that help organisations protect and understand their cloud infrastructure in real tim ...

Staff Backend Engineer – Real Time Multiplayer

Fortis Games is looking for a Staff Backend Engineer in the United Kingdom to contribute to building an amazing Original IP from concept to launch. The successful candidate will develop game features, design scalable CI/CD pipelines, perform load testing, and collaborate with cross-discipline teams. Robust exper ...

Senior Backend Engineer (Java/Serverless) Remote

Turnitin, LLC. is hiring a Senior Backend Engineer to join their remote-first team. The role focuses on backend development using Java and serverless architectures, along with frontend integrations. Responsibilities include designing scalable backend services, implementing APIs, and mentoring junior developers. ...

.NET Backend Engineer — Build Scalable APIs

Recipero is seeking a talented Software Engineer with strong .NET experience to join its growing engineering team. The role involves building and maintaining applications in the .NET ecosystem, collaborating in an agile environment, and troubleshooting various systems. Ideal candidates will have 3+ years of .NET ...

Software Engineer – Scalable Backend & React (Grocery)

hackajob is seeking a Software Engineer for the Grocery & Retail Domain in the United Kingdom. Your role involves developing and enhancing high-quality software solutions for customer-facing applications. Key responsibilities include collaborating with product managers and engineers, contributing to technical vi ...

Senior Backend Engineer – Django SaaS (Remote)

A leading tech recruitment firm in the UK is seeking a Senior Software Engineer for a fully remote position. This backend-focused role involves building integrations and developing RESTful APIs using Python and Django. Candidates should have strong experience with API design and integrations, along with skills i ...

Senior Backend Engineer – Scalable Game Services

A gaming company in the United Kingdom is looking for a Senior Software Engineer to join their backend services team. You will work on industry-leading game projects, collaborate with stakeholders, and help develop internal tools. Strong experience in game development and backend services is essential. The ideal ...

Remote Senior Backend Engineer Kotlin Microservices

A leading research technology firm in the UK seeks a Senior Backend Engineer to design solutions and mentor junior engineers. The role involves shipping code primarily in Kotlin and React, with a focus on scalability and precision. Candidates should have a STEM degree, experience in a mature Engineering team, an ...

Senior Backend Engineer Graph Platforms (EMEA)

A dynamic startup in the United Kingdom is seeking a Senior Backend Engineer specializing in Graph technologies. In this role, you'll design and maintain core backend systems, collaborate with various teams, and solve complex data problems. The ideal candidate will have extensive experience in backend developmen ...

Remote Senior Backend Engineer (Go & Kubernetes)

Akuity is seeking a Senior Engineer to enhance their SaaS platform. You will collaborate with teams to design and improve tools for developers. Responsibilities include developing in Go and ensuring the platform's scalability. The ideal candidate has over 5 years of development experience, expertise in building ...

Remote Go Backend & ML Benchmark Engineer

A recruitment firm is looking for a skilled backend engineer to develop coding benchmarks remotely. Candidates should have strong experience in backend software engineering, especially with Go programming. Responsibilities include validating benchmarks, ensuring comprehensive testing, and providing feedback on s ...

Senior Full Stack Engineer (Backend + Devops)

Gravitas Recruitment Group (Global) Ltd provided pay range This range is provided by Gravitas Recruitment Group (Global) Ltd. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Salary range : 80-100k </ ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

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