Software Developer Pythonreact Jobs in London, 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

Junior People Team Partner — London | Remote Options

A leading mobile games developer in London seeks a Junior People Team Business Partner to support people initiatives and enhance employee experience. This role offers a fantastic opportunity to work closely with leaders and teams in a creative, data-driven environment. The ideal candidate has prior HR experience ...

Strategic Enterprise Growth Architect

Checkout Ltd is seeking a Strategic Accounts Business Developer to join our team in London. In this role, you will develop strategic account plans and manage relationships with key prospects while collaborating with various teams. The ideal candidate will have relevant experience in enterprise sales, exceptional ...

Frontend Engineer Cloud UI & Design Systems (Hybrid)

Nordcloud is seeking a Front End Developer to join their UK team. This role involves designing modern frontend applications for cloud-based platforms and collaborating with UX, backend engineers, and cloud teams. You will need a strong grasp of JavaScript, responsive design, and relevant UI frameworks like React ...

Cross Border Payments Java AVP Hybrid, AI First

A leading global bank in Greater London is looking for a Cross Border Payments Developer (AVP) to join its FX Technology team. The role involves Java development in a collaborative, AI-focused environment, enhancing systems and participating in modernization efforts. Candidates should possess strong communicatio ...

Senior Cloud & App Security Engineer

Financial Times is seeking a Senior Cyber Security Engineer to enhance application and cloud security within their AWS-hosted environment. The role focuses on vulnerability management, developing security guardrails for CI/CD pipelines, and facilitating threat-modelling sessions. You will work collaboratively wi ...

Backend Engineer FinTech Data Platform (Python/AWS)

A financial technology company in Greater London is seeking a Python Backend Developer to lead technical projects, mentor junior developers, and develop backend services for their platform. This role involves working with Python, Flask, FastAPI, SQL, and AWS technologies. The ideal candidate will have strong col ...

Frontend Engineer: Build Scalable DX & Backstage Tools

A leading research firm in London is seeking a Frontend Engineer to join its Research and Trade DX team. The role involves creating intuitive web experiences and scalable back-end services using React, TypeScript, and Node.js. Ideal candidates should have strong expertise in delivering end-to-end systems, along ...

D365 F&O Finance Engineer — Lead & Deliver

A leading technology company is seeking an experienced D365 Developer to join their team in Greater London. You will lead D365 projects, develop custom solutions, and provide mentorship to the team. The ideal candidate will have over 6 years of experience in Dynamics 365 development with strong skills in X++, Ty ...

Senior Java Architect Hybrid Role in London

A global digital engineering provider is seeking a seasoned Java Developer for a hybrid role in London. The successful candidate will work on complex applications, leading initiatives and mentoring peers. Responsibilities include designing Java and Python systems, collaborating with international teams, and ensu ...

Senior Java Engineer Trading Platform & Low Latency

Bullish, Inc. is seeking a Java developer to design and deliver low-latency systems that power their Exchange. The ideal candidate has strong Java skills and a track record in performance tuning and building high-throughput systems. Join a global team committed to technical excellence, and collaborate ...

React Frontend Engineer — Admin Dashboards & Real‑Time Data

Java Script Works based in Greater London is looking for a skilled web developer to design and develop new back office applications using TypeScript, React, and Redux. You will work closely with backend developers, and cross-functional teams ensuring the best performance of web applications. The ideal ...

Enterprise Blockchain Engineer Smart Contracts (Hybrid)

Synergize Consulting is seeking an experienced Smart Contract Developer for their London HQ, requiring a minimum of 2 days a week in-office attendance. This role focuses on developing sophisticated solutions using enterprise blockchain platforms and Solidity-based smart contracts. The ideal candidate w ...

Grid Projects Electrical Engineer (Contract) Hybrid

Mint Selection is supporting a leading UK energy developer looking for an experienced Electrical Project Engineer for an initial 12-month contract. The role involves providing electrical engineering oversight across the design and construction phases of major power projects. You will be responsible for ...

Senior Scala Engineer Remote Fintech Real Time Platforms

Scalac is seeking a Senior Scala Developer to join a globally recognized fintech project based in London. The role involves designing and implementing real-time financial data streaming components and collaborating with the client's engineering team. The ideal candidate will have extensive experience i ...

Python Analytics Engineer — Insurance (Hybrid)

The Virginia Society of CPAs is seeking a skilled Python Developer in London, offering hybrid working two days per week in the office. This role focuses on developing production-grade analytical systems, addressing complex datasets to improve insurance analytics. Join a vibrant team during an exciting ...

Senior Frontend Architect Next.js, TS, AI Driven

Dormont Manufacturing Co in Greater London is seeking a Senior Frontend React Developer to lead technical direction across multiple products. This role emphasizes ownership of frontend architecture, delivering features with Next.js, and mentoring engineers within a collaborative agile environment. We s ...

Senior Power Platform Architect Hybrid London

Recruit with Purpose is seeking a Senior Solutions Developer to work with a Housing Association based in London. This hybrid role requires expertise in Microsoft Power Platform to create governance frameworks, integrate with Dynamics, and develop applications. You will own solution design and work closely wit ...

Senior Platform Backend Engineer: AI Agents & DevTools

Creandum Advisor LLP is seeking a Senior Backend Engineer focused on building backend platforms for AI agents and Model Context Protocol (MCP) servers. The role involves designing reliable infrastructure, enhancing developer workflows, and developing evaluation frameworks. The ideal candidate has exper ...

Data Scientist: Renewable Energy Analytics

A clean energy developer is on the lookout for a Data Scientist to join their dynamic team in Greater London. This role involves developing geospatial tools, energy market models, and automated reporting dashboards to enhance renewable energy projects involving solar and battery storage. Ideal candidates should ...

Senior Java Rates Engineer Low Latency Trading (London)

A leading financial technology firm based in London is seeking an experienced Senior Rates Developer for a 12-month contract. The role involves developing low-latency pricing components and enhancing trading workflows. Ideal candidates will have strong Java server-side development skills and experience in Rates ...

Senior Backend‑Focused Full‑Stack Engineer — Scale Impact

A leading educational technology company in Greater London is searching for a Full-Stack Developer to engage in backend and frontend development using cutting-edge technologies like Python and Django. The ideal candidate will thrive in a collaborative environment and drive innovation through data-driven decision ...

Senior Kotlin Multiplatform Engineer (Mobile)

An innovative technology consultancy in the UK is looking for a skilled Android Developer to join their mobile team. This role involves building high-quality mobile applications using Kotlin Multiplatform, collaborating closely with designers and product owners. The ideal candidate will possess strong native And ...

Senior Android Engineer Kotlin Multiplatform

A leading digital consultancy in the UK is seeking a skilled Android Developer to create high-quality mobile applications using Kotlin Multiplatform. This role involves writing clean, maintainable code and working closely with cross-functional teams. Ideal candidates have strong experience in Android development ...

Senior Full Stack Engineer Real Time Fintech Platform

A leading fintech startup in Greater London is seeking a talented developer to build real-time collaborative financial applications. You will design scalable APIs and integrate various financial data sources while ensuring data security and compliance. The ideal candidate will work with a modern tech stack inclu ...

Remote C++ Video Platform Engineer

A video technology company in Greater London is looking for a passionate individual to join their team as a C/C++ Developer. The role involves optimizing the Media Engine of a cutting-edge video platform and collaborating with engineers to drive innovation. Candidates should have expertise in C/C++ and a genuine ...

Java Full Stack Engineer (Angular/React) – Banking

A global technology and consulting firm in the Greater London area is seeking an experienced Java Fullstack Developer with expertise in AngularJS, ReactJS, and a strong background in the banking domain. Responsibilities include overseeing project delivery, designing scalable web applications, and ensuring high p ...

Platform Engineer: Cloud & Kubernetes, On‑Site London

A leading tech firm is seeking a Platform Engineer to join their team in London. The role focuses on building and maintaining scalable cloud-native infrastructure with a strong emphasis on Kubernetes and automation. Candidates should have experience with AWS, Google Cloud, or Azure, as well as knowledge of conta ...

Senior Java API Engineer – Cloud FIX & Low Latency Trading

A financial services firm in Greater London seeks an experienced API Developer to create robust trading APIs in the cloud. You will maintain and support IG's FIX APIs, contributing to the IG Prime division's roadmap while collaborating with various stakeholders. Candidates should possess around 5 years of Java e ...

Java Backend Engineer Production Reliability & Debugging

A technology services company in the UK is seeking a 3rd Line Back End Developer. This role involves investigating and resolving live system defects, developing and deploying fixes using Java, and collaborating with other teams to improve stability. The ideal candidate should have experience in supporting produc ...

Senior Java Backend Engineer for Scalable Quote API

A leading retail company in London is seeking a Java engineer to enhance developer experience and modernise its core systems. You will work on building components for a significant transformation project, with responsibilities including CI/CD pipeline management and migration to cloud services. Ideal candidates ...

Senior Java Engineer Cloud Microservices (Hybrid London)

A leading consultancy based in the UK seeks an experienced Senior Java Developer for a 12-month contract to work on critical cloud-native platforms. This hybrid role involves designing high-performance Java microservices and event-driven architectures utilizing Kafka and AWS. Ideal candidates should have substan ...

Senior Python Engineer AI Agents & Team Lead

A leading engineering consultancy in Greater London is seeking a Senior Python Developer to design, develop, and maintain applications and APIs. The candidate will lead a small development team and integrate AI Agents with various systems. Required skills include strong Python development, experience with LangGr ...

Java Backend Engineer – Incident Response & Reliability

A technology solutions firm in Greater London seeks a skilled 3rd Line Back End Developer to tackle complex issues in live systems. The role requires a strong background in Java and server environments, with responsibilities that include diagnosing defects, developing solutions, and collaborating with various te ...

Senior Tools Engineer: Build Scalable, Cross Game Tools

A leading gaming company in Greater London is seeking a Senior Tools Developer to innovate and maintain their tooling infrastructure. The role involves designing tools and collaborating with diverse teams to optimize workflows across projects. Ideal candidates will have excellent C++ and Python skills, strong co ...

Senior Sybase & APEX DBA for Banking Compliance

A leading technology solutions provider is seeking an experienced APEX Developer with strong Sybase DBA expertise to support a UK-based banking environment. This hands-on role focuses on onboarding Sybase databases into a compliance tool, developing dbDoot rules, and building ETL integrations from Sybase to Orac ...

Platform Engineer (DevEx) — CI/CD & IaC Expert

A leading defence technology company is seeking a Platform Engineer to own the internal developer ecosystem, focusing on automation and robust design patterns. Ideal candidates will have 3+ years of experience in CI/CD and a strong grasp of cloud-native technologies. Those with leadership skills and a passion fo ...

Senior Backend Architect (Remote) Multitenant

A dynamic technology education provider in the United Kingdom is searching for a skilled developer to join their remote team. The ideal candidate will have deep expertise in multitenancy and experience with statically typed languages such as C#, Java, or Kotlin. A strong willingness to learn Python and mastery o ...

Lead Java Architect – Real Time Risk & Cloud (Hybrid)

A leading financial institution in Greater London is seeking a Lead Java Developer. Your role will involve leading the delivery of Risk enhancements and managing the full development lifecycle. Ideal candidates will have strong experience in Core Java and exposure to Capital Markets technology. You'll get to wor ...

Senior Backend Engineer for AI Powered SaaS

A fast-growing AI company in London is seeking a Back-End Developer to design and maintain systems for their innovative AI-powered products. You will collaborate with senior engineers and data scientists, optimize performance, and contribute to system enhancements. Ideal candidates will have 3-5 years of back-en ...

Quant Dev: Launch & Scale New HFT Strategies

A leading financial firm in London seeks a Quantitative Developer to join a new HFT team. You will play a crucial role in launching and ensuring the profitability of this new desk. The ideal candidate is experienced in quantitative roles, proficient in Python (C++ is a plus), and ready to face multifaceted chall ...

Senior Ruby Engineer Hybrid, Equity & Impact

A leading green technology provider in the UK seeks a Senior Web Application Developer with 5+ years of experience. You will develop scalable applications using Ruby, Rails, React, and TypeScript. The role involves collaborating with product managers, mentoring junior staff, and driving technical initiatives. Of ...

Senior DevOps Engineer: Kubernetes & GitOps Platform Lead

A prestigious hedge fund in London is seeking a DevOps Engineer with a strong developer background to join their Platform Engineering team. This role focuses on Kubernetes in bare metal environments and GitOps workflows, aimed at evolving a modern platform. Candidates should have experience in platform engineeri ...

Growth Hunter: Circular IT Partnerships & Revenue

A forward-thinking tech partner in the UK is seeking a Business Developer to drive sales growth. This pivotal role involves managing the entire sales cycle, from prospecting to closing, and building long-term relationships with clients. The ideal candidate will be data-driven and skilled in sales automation tool ...

Senior Director – Co Living Development & Design (London)

A high-end design studio located in London is seeking a senior professional to join their team and expand offerings in the developer-led co-living sector. Applicants must have excellent experience in this sector, with strong knowledge of local planning teams and a solid design background, ideally with over 10 ye ...

Senior Account Executive FinTech & Enterprise DevTools

A technology company is seeking a Senior Account Executive to manage complex sales cycles, drive customer adoption, and engage with technical stakeholders. The ideal candidate has over 5 years of experience in enterprise B2B SaaS sales, preferably with developer tools, and a proven track record of exceeding sale ...

Enterprise Node.js/TypeScript Full‑Stack Engineer

A global financial services firm is seeking a Full Stack Developer specialized in NodeJS and Typescript to join their Enterprise Technology team. The role involves designing and maintaining high-quality solutions within the Engine Room platform, contributing to API gateways and ensuring robust technical solution ...

Senior Full Stack Innovator (Hybrid) – London

A leading consulting firm in the UK seeks a Senior Full Stack Developer to design and deliver scalable application solutions utilizing cloud platforms like Azure and AWS. The role demands expertise in backend development, REST APIs, and modern technologies including Python and React. You'll collaborate with cros ...

Full Stack Product Engineer — AI Inspections Platform

A VC-backed startup in the UK is looking for a full-stack developer to help modernize a large industry through AI. You will build features using TypeScript, Next.js, and NestJS while having a high degree of ownership from day one. The ideal candidate has a product mindset and may possess previous startup experie ...

D365 & Power Platform Specialist (Hybrid)

A logistics technology company is seeking a Microsoft D365 Developer for a hybrid role based in London. The ideal candidate will have 4-5 years of experience in ERP or D365 development, a strong technical background, and a proven track record of successfully implementing D365 solutions. Responsibilities include ...

Senior Technical Operations Engineer Hybrid Playtest Tools

A global gaming company is seeking a Senior Technical Operations Developer in London, UK. This role involves building and maintaining research tools, managing technical roadmaps, and supporting lab systems. The ideal candidate will have full-stack development experience in PHP, JS, React, and an understanding of ...

🚀 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

    Software Developer Pythonreact Jobs in London Job Search Guide, Trends and Insights