Lead Python Software Engineer Python And React 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

Production Test Systems Engineer — Python Automation

A technology leader based in Northern Ireland is seeking a Test System Software Engineer to develop and maintain automated production test systems. The role requires strong expertise in Python for hardware interaction and software tooling. You will address failures in manufacturing, improve processes, and work c ...

Open Source DevOps Engineer (Python/Golang)

A leading open source technology company seeks a passionate Python developer to join their Solutions Engineering team. This role involves working on open source software operations code and shaping high-quality monitoring infrastructure. Ideal candidates will have strong knowledge of cloud computing, networking, ...

Senior Python Quant Trading Systems Engineer

A leading hedge fund in Greater London is seeking a strong Python engineer to join their systematic equities trading team. This role involves significant ownership over trading infrastructure, including building and enhancing systems to improve automation and robustness. Candidates should have strong experience ...

DOC Analytics Engineer SQL, Python & PowerBI

A health insurer and provider is seeking a Technical Analyst in Salford to support data analysis and deliver advanced analytics solutions. The role requires experience with SQL and Python and involves working in an agile environment. The company offers competitive benefits, including health insurance, flexible w ...

Front Office Python Engineer – Trading Platform

A diversified trading firm in London is seeking a Software Engineer with strong Python skills to join an established multi-asset trading team. This role involves improving existing code and developing new tools while collaborating directly with traders and quantitative researchers. The ideal candidate has at lea ...

Python ML Engineer — Hybrid, Growth & Impact

A high growth scale-up in defence is seeking a Python Software Engineer to work on AI/ML solutions that enhance national security. The role involves collaboration within an engineering team and requires strong Python skills along with experience in container orchestration and machine learning frameworks. The pos ...

Senior Python Microservices Engineer (GenAI & Agentic)

A forward-thinking engineering consultancy is seeking a Senior Software Engineer specializing in Python to design and build scalable services and APIs for an automated code modernization platform. The role requires strong engineering skills, experience with microservices, and a genuine interest in GenAI. This po ...

Cloud Native AWS Python Backend Engineer

A consulting firm seeks an AWS Python Developer in Nottingham. The ideal candidate has strong expertise in Python, AWS cloud services, and backend frameworks like Django. Responsibilities include designing and maintaining backend services, developing RESTful APIs, and collaborating in an agile environment. This ...

Senior Python & Angular Full Stack Engineer

A leading tech recruitment agency is seeking a Web Solutions Engineer/Fullstack Engineer to work in London on a hybrid schedule. The ideal candidate will possess 5 to 15 years of software development experience with strong skills in Python, Angular, and AI. Responsibilities include independently designing new fe ...

Senior ML Platform Engineer — Python & AWS

A leading media organization in the UK is looking for a Senior Software Engineer to join their Machine Learning Enablement Team. The role involves designing and delivering tools that empower data scientists and engineering teams. The ideal candidate will have extensive experience in modern Python development and ...

Senior Container Security Engineer Python & Kubernetes

A leading global bank in London is seeking a highly skilled professional to join their Container Security team. This role involves engineering automated security solutions and enhancing container security tools, requiring over 7 years of relevant experience, expertise in programming languages like Python or Java ...

Python Test Systems Engineer Production Automation

A global technology leader in Lisburn is seeking a Test System Software Engineer to enhance production test systems and maintain automated testing solutions. This role requires over 3 years of software development experience, particularly in Python, and a solid grasp of digital electronics. You will work closely ...

Remote OpenSearch Data Infrastructure Engineer | Python

A leading tech firm is seeking to expand their OpenSearch team. This role involves collaborating with a distributed team, developing features using Python, and managing automation for search operations. Candidates should have hands-on experience in software development and an educational background in Computer S ...

Electronics Test Automation Engineer (Python & Hardware)

An innovative technology company is seeking Electronics Test Automation Engineers to strengthen its electronics verification capability. This role is automation-led, focusing on converting manual electronics tests into robust, maintainable automated solutions while supporting manual execution where automation ...

Senior Python Engineer: APIs & Data Pipelines

A leading fintech company is seeking a mid-senior level Python Engineer in the United Kingdom. In this full-time role, you will develop APIs and data pipelines while collaborating closely with product teams. Ideal candidates will have over 5 years of software engineering experience, strong Python skills, and a b ...

Python Engineer Fintech SaaS (Hybrid, London)

A leading SaaS platform is seeking a passionate Python Engineer to join their dynamic team in London. The role involves designing and developing Python applications, collaborating with cross-functional teams, and contributing to the platform's architecture. Candidates should have strong Python skills and experie ...

Senior Python Engineer: APIs & Data Pipelines

A leading fintech company is seeking a mid-senior level Python Engineer in the United Kingdom. In this full-time role, you will develop APIs and data pipelines while collaborating closely with product teams. Ideal candidates will have over 5 years of software engineering experience, strong Python skills, and a b ...

Site Reliability Engineer III Java/Python

Role Overview As a Site Reliability Engineer III at JPMorgan Chase within the External Collaboration team, you will lead development and integration of collaboration platforms such as VDRs, Microsoft 365 B2B, Client Portals, and Google Workspace. Site Reliability Engineering at JPMorgan Chase is ...

Senior Python & AI/ML Cloud Engineer

A leading global financial services firm is seeking a skilled Software Engineer III to contribute to their Applied AI/ML group. You will engineer and deploy cloud-based frameworks for machine learning models, ensuring high-quality applications using Python and AWS. The ideal candidate possesses strong problem-so ...

Senior Full Stack Engineer (Java & Python)

We are seeking a high-impact Senior Full-Stack Engineer to join a growing technology team for a leading investment house supporting market data services within a regulated, enterprise environment. This role sits at the intersection of data engineering, full-stack development, and busines ...

Hardware Test Automation Engineer Python & RF

A recruitment agency is seeking an Electronic Test Automation Engineer in Landbeach, England. The role involves transforming manual electronics tests into automated solutions, working with hardware and multidisciplinary teams. Candidates should have strong Python skills, experience in hardware test automation, a ...

Senior Backend Engineer — Python/Go, Hybrid

A London-based AI Start-Up is seeking a highly skilled Senior Backend Developer to join their Engineering team. This high-ownership role involves backend architecture, building APIs, and collaborating with a cross-functional team to develop end-to-end features. Ideal candidates will be proficient in Python or a ...

Senior Backend Python Engineer – Hybrid (Leeds)

A leading resource management firm in Leeds is seeking an experienced backend developer to build and maintain services and APIs. The role requires strong Python skills and experience in REST API development. You will work in a hybrid environment, collaborating with onshore teams, contributing to sprint delivery, ...

Python Developer FX Options Data Engineer

For additional information, please review .**Python Developer - FX Options Pricing and Market Data Distribution**The FX Options Pricing and Market Data distribution team is going through significant reengineering and modernisation. We are looking for an experienced Python developer and technologist to take a han ...

Python Engineer, Fixed Income Trading Tech

A leading international investment bank is seeking a skilled Python Developer for their Fixed Income trading technology team. The role focuses on building and enhancing production trading systems, requiring solid experience in Python and the ability to improve system performance. You will be responsible for deve ...

Python API Engineer for Data Platform

A leading data analytics firm in Bath is seeking a Python Software Engineer passionate about delivering high-quality software solutions. This position involves working within an agile team focused on developing data-driven applications, specifically for the Country Risk Data platform. The ideal candidate will ha ...

Open Source DevOps Engineer (Python/Golang)

A leading open source software provider in the UK is seeking a passionate Software Engineer to drive the development of cutting-edge software solutions. You will work primarily with Python and Golang, contribute to the Linux stack, and enhance infrastructure operations while following agile practices. This role ...

Senior Cloud Platform Engineer (Python & AWS)

A global financial services firm in Glasgow is seeking a Software Engineer to support Cloud Foundational Services. You will work with automation tools to enable Infrastructure as Code, develop public cloud products, and enhance software applications. The ideal candidate has experience in Terraform, programming l ...

Python Developer FX Options Data Engineer

Python Developer - FX Options Pricing and Market Data Distribution The FX Options Pricing and Market Data distribution team is going through significant reengineering and modernisation. We are looking for an experienced Python developer and technologist to take a hands‑on role in building o ...

Python Test Automation Engineer Hardware & Embedded

A technology company in the UK is seeking a candidate with strong proficiency in Python programming and proven experience in test automation at hardware, system, or integration levels. Applicants should have experience in controlling test equipment via software and solid software engineering practices, including ...

Azure Data Engineer | Python ETL & Pipelines

A global technology partner is seeking a skilled Python/Azure Data Engineer in Greater London. The role involves building scalable cloud-based data pipelines and ETL workflows while ensuring data quality and performance. Candidates should possess strong expertise in Python, SQL, and Azure services, along with a ...

Impactful Python Backend Engineer (Hybrid London)

A fast-scaling FinTech company in London is seeking a Python Software Engineer to design and maintain backend services for their customer-facing platform. This role emphasizes strong foundations in software engineering, API development, and cloud infrastructure management. You will collaborate with cross-functio ...

Defence Infra Automation Engineer (Python & Ansible)

A leading recruitment agency is seeking an experienced Infrastructure Automation Engineer for a major UK Defence digital transformation programme based in Corsham. The role demands strong expertise in Python3 and Ansible, with active SC clearance preferred. You'll work in a hybrid model with up to £700 per day f ...

Electronics Test Automation Engineer – Python Automation

A technology company based in Cambridge is seeking Electronics Test Automation Engineers to enhance their hardware testing capabilities. The ideal candidate will automate manual tests, develop robust Python scripts, and support hardware verification. Candidates should have strong programming skills, experience i ...

Hybrid Network Automation Engineer | Terraform & Python

A leading global FinTech company in the United Kingdom is seeking a Network Automation Engineer to enhance their low latency trading technology. This role offers great hybrid working flexibility and requires strong automation and Terraform experience. You will work on high-performance networks with technologies ...

AI Engineer | Python, LLMs & Azure (Hybrid)

A leading technology recruitment agency in Birmingham is seeking an AI Engineer to design and deploy AI applications using Python. The role involves developing scalable, secure services in Azure and includes responsibilities like API design, data integration, and monitoring AI systems. Ideal candidates should ha ...

Open Source DevOps Engineer (Python/Golang)

A leading open-source software company is seeking a passionate Python Developer to join their regional software engineering team in Manchester. The ideal candidate will design and deliver high-quality software operations code while working across the Linux stack. Benefits include a distributed work environment, ...

Remote AWS Engineer | Terraform, Kafka & Python

A leading software company is seeking an AWS Engineer to join their remote DevOps team in the UK. The ideal candidate will have excellent cloud knowledge, particularly in AWS, and experience in tools such as Terraform, Kafka, and GitLab. Python proficiency is also required. This role offers the opportunity to wo ...

Cloud Native Backend Engineer (Python/AWS)

A leading financial technology start-up in Greater London is seeking a motivated backend engineer to help define and build cloud-native services. Candidates should have expertise in Python and experience with AWS, Docker, and Infrastructure as Code using Terraform. The role involves collaborating with cross-func ...

Python Engineer — Cloud, Docker & REST APIs

A digital services firm in the UK is seeking an Intermediate Python Developer to join their innovative team. This role involves producing high-quality software as part of multi-disciplinary teams for both public and private sector clients. Ideal candidates will have strong Python skills and full-stack developmen ...

Remote Python Backend Engineer — Product & API

A tech-focused company is seeking a Python Developer to join their team, working remotely within the UK or EU. This role involves designing scalable backend services and APIs, alongside integrating machine learning models. Applicants should have over two years of experience with Python and modern frameworks like ...

Climate Data Backend Engineer (Python, APIs)

A leading carbon data company in Greater London is seeking a Software Engineer to develop and maintain their data platform. The role involves building backend systems and APIs while handling complex datasets, with a strong focus on sustainability. Ideal candidates will have 2+ years of experience in REST API dev ...

AI / LLM Engineer (Python) London (243)

London Maven is a market-leading proprietary trading firm allocating internal capital across discretionary, systematic, and market-making strategies. Our collective expertise spans traders, engineers, and technologists, unified by an unwavering dedication to enhance our efficiency as a premier liqu ...

Distributed Systems Test Engineer Python/Go

A leading open source software provider is seeking a Software Engineer for Distributed Systems Testing in Glasgow. This role focuses on building and validating resilient distributed systems, enhancing CI pipelines, and collaborating with globally distributed teams. Candidates should have a strong background in m ...

Hybrid Web Solutions Engineer (Python + Angular)

A leading technology recruitment firm is looking for a Web Solutions Engineer/Fullstack Engineer to work in a hybrid model based in London. This position is initially for a 6+ month contract. The ideal candidate should have extensive experience in software development, particularly in Python and Angular. Respons ...

Mission Critical Backend Engineer (Python/Docker)

A leading technology firm is seeking a Backend Software Engineer to deliver mission critical solutions for national security customers. This role involves developing novel products and working collaboratively with engineering teams to solve complex problems. Candidates should possess expertise in writing secure ...

Senior AI Operations Engineer (Python/Golang)

A leading media and entertainment company in the UK is looking for a Senior Software Engineer to work on their cutting-edge AI Operations platform. This role involves designing, building, and maintaining complex systems, utilizing technologies like Golang and Python to deliver innovative AI-assisted software sol ...

Automation & Reporting Engineer (Node.js/Python) London

A technology and data company in London is seeking a Developer with expertise in Node.js and Python. The role involves developing automation software, collaborating with data scientists, and maintaining data processing solutions. Ideal candidates will have 2-3 years of experience and strong coding practices. The ...

Python Developer FX Options Data Engineer

Python Developer - FX Options Pricing and Market Data Distribution The FX Options Pricing and Market Data distribution team is going through significant reengineering and modernisation. We are looking for an experienced Python developer and technologist to take a hands‑on role in building out dat ...

Senior ML Operations Engineer Python, Hybrid

A leading analytics firm in Manchester is seeking a Senior ML Operations Engineer to enhance the deployment and operation of machine learning models in a dynamic pricing environment. This role combines strong engineering skills with business impact, focusing on production-level Python deployments. The ideal cand ...

🚀 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

    Lead Python Software Engineer Python And React Jobs in United Kingdom Job Search Guide, Trends and Insights