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

Remote Senior D365 CE Architect & Integrations Lead

A technology solutions firm in the UK is seeking a Senior Developer D365 CE to take technical ownership of a Dynamics 365 Customer Engagement estate. This remote, permanent role involves leading architecture and solutions design, integrating D365 with third-party platforms, and developing custom applications. Th ...

C++ Trading Platform Engineer — Hybrid & High Impact

A leading cryptocurrency trading firm is seeking a skilled C++ Trading Platform Developer. In this role, you will develop and enhance a global trading platform, working with cutting-edge technology and a dynamic team. You will have significant independence, responsibility, and the chance to directly impact tradi ...

Senior Java Backend Engineer – Data Platform

A leading technology firm in the United Kingdom is seeking a Senior Backend Developer to support a data platform programme for a global financial services organisation. The successful candidate will design and implement backend services, ensure high levels of automated testing, and integrate with various systems ...

Low Latency C#/.NET Front Office Tech Engineer

A tech-native consultancy in the UK seeks an experienced C# / .NET Developer for their Front Office, specializing in real-time and low-latency trading systems. Candidates should have a strong background in performance-sensitive environments and be able to design and implement efficient applications. This role em ...

Senior Full Stack Engineer (Scala + React) Lead & Build

A leading trading solutions provider in Greater London is seeking a Senior Web Developer to join its FlexONE team. The role involves managing key product surfaces across web and mobile applications, utilizing Scala with Play Framework and a React front-end. Responsibilities include delivering maintainable featur ...

Senior Backend Engineer for AI Powered, Scalable SaaS

A forward-thinking technology company in Greater London is seeking a Back-End Developer to work on AI-powered products. You will design and maintain scalable back-end systems while collaborating with data scientists and engineers. The ideal candidate has 3–5 years of experience in back-end development, strong kn ...

Remote Mobile Engineer React Native, User‑Focused

A tech company specializing in incident management is seeking a Mobile App Developer to lead the development of their on-call app. This role focuses on using React Native to build an outstanding user experience for iOS and Android platforms. With a strong emphasis on usability, accessibility, and customer feedba ...

Senior Adobe Experience Cloud Engineer

VML group is looking for an Adobe Developer in Greater London. In this role, you will be responsible for implementing new features and troubleshooting within Adobe environments. The ideal candidate has over 4 years of hands-on development experience, preferably in an agency setting, and has expertise with Adobe ...

Hybrid .NET Backend Engineer — AWS, SQL & REST APIs

A fast-paced startup in Greater London is seeking a Back-End Developer to design and build robust server-side applications using .NET and C#. This role offers hybrid working and involves implementing critical business logic, developing RESTful APIs, and leveraging AWS services. The ideal candidate should have a ...

Backend Data Platform Engineer (Remote Friendly)

A leading streaming platform based in London is seeking an experienced backend developer to enhance their data processing capabilities. You will collaborate with product and engineering teams to build scalable infrastructure and develop tools to improve productivity. The role requires expertise in Java, SQL, and ...

Senior Android Engineer Enterprise Apps & UX

An innovative tech company is seeking a Senior Android Developer to lead the development of enterprise-level Android applications. You will drive user experiences that meet high standards of quality and work on projects in sectors like Finance and Healthcare. Candidates should have strong experience in Kotlin an ...

Backend Engineer (Kotlin/Java) Remote Healthcare SaaS

A leading healthcare technology provider is seeking a remote Backend Developer proficient in Kotlin and Java. The ideal candidate will collaborate with cross-functional teams to design backend services and APIs, ensuring quality and reliability. Candidates should have at least 5 years of relevant experience, a b ...

Senior Backend Engineer: Scalable Green Energy Platform

A leading energy technology company in London is looking for an experienced backend developer to contribute to products that make energy more flexible for customers. You will need 5+ years in web application development, expertise in Python/Django, and the ability to work autonomously or collaboratively. The rol ...

Full Stack C#/.NET Engineer Enterprise Tech Platform

A leading tech firm in the UK seeks a Full Stack C# Developer for its Enterprise team. You will design and maintain high-quality C#/.NET solutions and build scalable services that support multiple business streams. The ideal candidate has strong experience in C# and AWS, along with the ability to work in a fast- ...

Senior Java Backend Engineer Hybrid, 6 Month Contract

A tech recruitment firm in the UK is seeking an experienced Java Developer for a hybrid position, requiring one day per month in the London office. The role is an initial 6-month contract focused on developing and enhancing scalable backend systems. Candidates should have strong experience in Java, solid underst ...

Senior Solar Project Manager 12 Month, Hybrid (London)

Statkraft is seeking a Senior Project Developer to lead ground-mounted solar development projects in London. This hybrid role involves managing planning and consenting processes, coordinating with various stakeholders, and providing project management oversight. The ideal candidate will have a degree in a releva ...

React UI Engineer: Build fast, accessible web interfaces

Sanderson Government & Defence in Greater London is searching for a React UI Developer responsible for building modern, responsive user interfaces with React. The role involves collaborating closely with designers and backend engineers to deliver high-quality web applications. The ideal candidate will have solid ...

SAP CPI Integration Engineer – Asset Management

Experis is seeking an SAP Developer based in London for a 6-month project with a reputable client in the energy sector. The role involves developing integrations between SAP Plant Maintenance and other applications using SAP Cloud Platform Integration (CPI). Candidates should have strong experience in SAP integr ...

Development Manager: Planning & Growth Lead in London

Cobalt Consulting (UK) Ltd is looking for an ambitious Assistant Planning Manager or Development Manager to work closely with the Managing Director on full development lifecycle projects. This role requires 2-5 years of professional planning experience and offers hands-on opportunities within a design-led develo ...

Senior .NET Engineer – Capital Markets (Hybrid London)

A leading financial technology firm in Greater London is seeking a Senior .NET Developer to design and build high-performance platforms for financial services. You will leverage deep engineering expertise to create cloud-based applications that support banking and capital markets. Ideal candidates will have adva ...

Platform Engineer: Backend Java for Data Fabric

A leading consultancy firm is looking for a Backend Java Developer for a hybrid role in London. You will build core backend services for a Data Fabric platform, implementing rule engines and working with SQL parsing and distributed data systems. Ideal candidates should have strong experience in Java (17/21), Spr ...

Head of Live Ops & Economy — F1 Clash

A mobile games developer in London is seeking a Principal Product Manager to drive the strategic vision for its flagship title. You will own the game's economy, lead a high-performing team, and ensure operational excellence. Ideal candidates have a proven track record in mobile games, deep expertise in game econ ...

Data Analytics Engineer Intern – Hybrid London

A leading analytics firm in London is offering a year-long paid internship for a DA Developer intern. This role provides hands-on experience with data and analytics, focusing on dashboard creation, SQL query optimization, and collaboration with stakeholders. Candidates must be enrolled in a relevant program and ...

Principal Product Manager F1 Clash Live Ops & Economy

A leading mobile games developer in London seeks a Principal Product Manager to drive the strategic vision for F1 Clash. In this role, you will oversee the game's economy and pricing architecture while managing a dynamic team. Ideal candidates will have extensive experience in mobile game management, a deep unde ...

Senior Java Trading Systems Engineer Low Latency

A leading financial services provider is seeking a Senior Java Developer to design and implement low-latency trading system components. This role requires deep expertise in Java, real-time systems, and distributed messaging technologies. The ideal candidate will be responsible for optimizing mission-critical tra ...

High Rise Residential Design Manager

A reputable contractor and developer in Greater London is seeking a knowledgeable Design Manager for a residential scheme in South East London. This site-based role entails interrogating designs, liaising with authorities, and managing technical design approvals. Ideal candidates will have prior experience in si ...

Principal AI Architect for Agentic Platforms

A deep-tech company in Greater London seeks a Principal AI Engineer dedicated to shaping AI-driven engineering workflows. You will build a platform for advanced simulation tools and lead innovative efforts in agent architecture and observability. The ideal candidate has over 4 years of platform engineering exper ...

React Native Tech Lead & Architect

A leading digital technology consultancy in Greater London is seeking a Lead React Native Developer to define technical architecture and lead engineering teams in building innovative products. This hybrid role allows for remote work 2 days a week. The ideal candidate will have deep expertise in React Native and ...

Senior .NET Engineer Capital Markets (Hybrid London)

A premier consulting firm in London is seeking a Senior .NET Developer to design and develop high-performance platforms for the financial services sector. You'll collaborate with cross-functional teams to deliver scalable solutions while employing best practices. Candidates should have deep experience in C# and ...

Director of Product – Ecosystem & AI

A leading eCommerce platform in the United Kingdom is seeking a Director of Product – Ecosystem to drive innovation and excellence in their platform capabilities. You will own the product strategy for the Ecosystem, enhance developer experiences, and ensure seamless integration. This role involves leading a high ...

Growth Focused Frontend Engineer (Webflow) | Hybrid London

A leading fintech company in London is seeking a Web Developer to enhance their marketing infrastructure through A/B testing and data-driven web solutions. You will work in a hybrid environment, integrating Webflow with custom code and collaborating with cross-functional teams. Ideal candidates will have 3–5 yea ...

Lead AI Engineer Build Next Gen AI Systems

A pioneering AI-first company in the UK is seeking an AI/ML Developer to design and optimize innovative advisory products. The ideal candidate will have over 3 years of experience in AI/ML development, strong programming skills in Python, and familiarity with TypeScript. This role offers a competitive salary and ...

API Product Manager Shape the Next Growth Pill

A leading video tech company is seeking a Technical Product Manager to spearhead their API initiatives. This role involves collaborating with engineering teams, managing product lifecycle, and engaging with the developer community. Ideal candidates have 3+ years in product management with a focus on APIs, a stro ...

Lead Java Engineer — Real Time Risk & Cloud Platforms

A global financial institution in Greater London seeks a Full-Time Applications Developer to lead real-time risk enhancements for their Credit Business. The ideal candidate should have strong experience in Core Java, J2EE, Spring Framework, and exposure to Python. An understanding of Front Office Risk calculatio ...

Engineering Manager Real Time Quant Frameworks

A leading quantitative finance firm located in Greater London is seeking an Engineering Manager to lead and design scalable systems that enhance research capabilities. The role includes guiding teams to improve developer and researcher experiences through innovative solutions and maintaining the resilience of th ...

Senior React Native Engineer — Impactful EdTech + Equity

A leading educational technology company is looking for a Mobile Developer to build high-quality, scalable features for their apps using React Native. The ideal candidate should have over 5 years of experience in mobile development, including expertise in JavaScript/TypeScript and a strong ability to work collab ...

AI Content Operations Engineering Manager

A leading tech firm based in London or Oslo is seeking a Senior Engineering Manager to lead a talented team focused on AI-powered content operations. The ideal candidate will have experience in engineering management and a passion for developer tools. This is an opportunity to influence product direction and nur ...

Senior Technical Support Engineer, EMEA — Remote

A leading code security company is seeking a Senior Technical Support Engineer I for remote work in the UK. This role involves engaging with customers to resolve technical issues, managing support tickets, and participating in cross-functional teams. Ideal candidates possess excellent communication skills, a bac ...

UK & Ireland Growth & Partnerships Lead

A dynamic event technology company is seeking a UK Business Developer to join their expanding team. You'll be responsible for identifying sales opportunities, managing a sales pipeline, and executing deals within the UK musical events sector. With at least 3 years of experience and a strong network in the indust ...

Real Time Front End Engineer: React or Angular

A tech-native consultancy in London is seeking a Front-End Developer with expertise in React or Angular. In this challenging role, you will design and develop high-performance web applications for complex Front Office and Risk systems. You will be responsible for UI architecture and collaborate closely with back ...

React UI Engineer Real Time Data Interfaces

A leading global financial services firm is seeking a UI Developer in Greater London to assist in designing and developing user interfaces with React and Redux. Responsibilities include building responsive interfaces, collaborating on real-time data solutions, and participating in code reviews. Candidates should ...

C++ Investment Tools Engineer – Alpha Signals

Newton Colmore Consulting is seeking an experienced C++ Developer to join a newly established investment team in Greater London. The role involves developing cutting-edge tools and algorithms for investment strategies, requiring strong C++ expertise and interest in finance. Ideal candidates will have 2-to-4 year ...

Senior Python Engineer — Trading & Risk Platforms

VBeyond Corporation is seeking a Python Developer with strong experience in trading and risk management systems within investment banking. This role involves developing backend applications and data processing logic supporting risk calculations and trade workflows. Candidates must have 6-10 years of Python devel ...

Senior Java Backend Engineer Cloud, APIs & Scale

Arrows is seeking a Senior Java Developer to join their international engineering team. In this role, you'll develop and enhance backend services for a sophisticated Content Management System supporting global streaming platforms. You'll work on Java-based systems and contribute to architecture decisions, platfo ...

Azure C# .NET Backend Engineer — Hybrid London

Xcede is seeking a C# .NET Developer in London for a contract role with a global technology consultancy. This opportunity offers a hybrid working model with 3 days onsite each week and a competitive rate of up to £530/day Inside IR35. Ideal candidates should have 4-7 years of experience in .NET development and s ...

Senior Python Backend Engineer — Scalable APIs & AI Workflows

A dynamic scale-up in the fintech space is looking for a Senior Python Developer to join their team in Greater London. In this role, you'll implement robust solutions, design REST APIs, and ensure code quality through testing and reviews. The company offers a competitive salary between £70,000 and £95,000, hybri ...

Senior C# & React Engineer for Front Office Risk Platform

Talan is seeking a hands-on Senior Developer to join their high-impact technology team focused on risk and valuation systems. The role involves working across the full stack and collaborating closely with business users and technical peers. Ideal candidates will have strong experience in C#, TypeScript, React, a ...

Senior Java Lead — Hands On, Cloud Microservices

Understanding Recruitment is seeking an experienced Senior Java Developer to lead a team in London. In this role, you will manage a hands-on team of Java Developers, making architectural decisions and mentoring others. The ideal candidate has strong skills in multithreading, product-led development, and experien ...

Senior Commercial Manager for Residential Projects (London)

Energy Jobline ZR is seeking an experienced Commercial Manager for residential developer projects in London. The successful candidate will lead commercial strategy and delivery for a pipeline of major schemes, requiring strong leadership and project management skills. Offering a competitive salary of up to £120, ...

Low Latency Java Quant Trader: Algo, FX, Crypto & DeFi

Harrington Starr is seeking an experienced Java Quantitative Developer to join their crypto trading desk in London. This role involves designing algorithmic trading strategies, building pricing logic and hedging frameworks, and translating quant ideas into efficient Java code. The ideal candidate should have str ...

🚀 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