2,023,112+ Full Stack Engineer Python Javascript Jobs in UK — Top Companies Hiring June 2026

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Low Latency Python Engineer – Front Office FX Trading

mthree is seeking a Python Engineer to join its Front Office FX Options Technology team in Greater London. In this role, you will work on high-impact, low-latency trading systems that are critical to business success, collaborating directly with traders and business stakeholders. Your expertise in Pyth ...

SC Cleared Senior Digital Engineer | Python/Django TechLead

Experis - ManpowerGroup is looking for a Senior Digital Developer to join their high-profile public sector subsidiary. In this role, you will lead a multi-disciplinary team to deliver secure, scalable digital services. Your responsibilities include designing full-stack features, ensuring maintainable c ...

London Client Facing Software Engineer (Python/TS) Impact

Cubiq Recruitment is looking for a Forward Deployed Software Engineer (Python / TypeScript) to work in London. You will partner with clients to deliver impactful software solutions that streamline business operations. This hands-on role requires strong coding skills and the ability to handle complex data chal ...

Real Time Distributed Market Data Systems Engineer (Python)

NJF Global Holdings Ltd is seeking a Software Engineer to build a next-generation Tick Data Platform from scratch. Join a greenfield engineering initiative where you will collaborate closely with researchers and engineers to design scalable distributed systems that impact quantitative research and trading. </ ...

Senior C++/Python Engineer AI Inference & ML, FTC

Corriculo is seeking a Senior Software Engineer for a 9 month fixed term contract in Manchester, focusing on C++ and Python development within innovative AI and machine learning technologies. The role involves designing software for biometric systems and working in an Agile environment, ensuring scalab ...

Python Engineer – Embedded/RF Systems (Onsite 4 days)

IC Resources is looking for a talented Python Software Engineer to join their team in Cambridge. This role involves translating advanced algorithms into robust, production-ready software for complex RF hardware. The ideal candidate will have experience in Python programming and algorithm optimisation, ...

Quant Data Engineer: Python for Systematic Trading Tech

JPMorgan Chase & Co. is seeking a Python Quant Data Engineer in the City of Westminster to enhance technology for the Equities Trading Business. This role is crucial in building reliable data pipelines, supporting quantitative research, and developing robust tools for trading. Candidates should have st ...

Senior Python Engineer Platform Lead(Hybrid, Stock Options)

Klarian LTD, located in Exmouth, is seeking a Senior Software Engineer to enhance its products and platform. The role involves developing clean and efficient code, leading feature development, and mentoring team members. The ideal candidate will have over 5 years of experience in Python development, st ...

Senior Principal Engineer Cloud Lead & Mentor (AWS/Python)

A tech company in London seeks a Principal Engineer to integrate hands-on expertise with leadership skills in a collaborative environment. This role involves mentoring team members while utilizing AWS, Terraform, and Python. The successful candidate will demonstrate a passion for engineering best practices and a ...

Founding Python Engineer Early Stage Start Up London

Overview Founding Python Engineer required for an early stage start-up building the future of AI-powered data processing. Joined by a founding team from leading industry names and backed by prestigious VC and angel investors, this is a ground-floor opportunity to work on technically challenging AI ...

Remote Senior Backend Engineer Python & Scale for Impact

A mission-driven tech scale-up is seeking a Senior Backend Engineer to design, build, and scale their core software platform. This hands-on role involves creating backend services in Python and improving system performance while collaborating with a high-performing team. The ideal candidate has strong experience ...

Senior Python Software Engineer | AWS, Client Facing, Hybrid

A leading recruitment agency is seeking a Senior Software Engineer (Python) in Bristol. This hybrid role involves working with Agile teams and clients to develop bespoke software solutions. Candidates should have strong Python skills, AWS experience, and client-facing consultancy capabilities. A British passport ...

Senior Software Engineer Health Tech (Hybrid, Python/API)

A recruitment firm in Cambridge is hiring a Senior Software Engineer to develop cutting-edge health technology. The role requires strong Python skills, particularly in API development. Responsibilities include writing scalable code and building robust APIs, while working in a collaborative culture that encourage ...

Senior Python Engineer – ML for Carbon Reduction (Hybrid)

A leading technology scale-up located in London is looking for a Senior Software Engineer with expertise in Python and AWS. This role emphasizes collaboration within cross-functional teams to tackle climate change challenges using machine learning technology. The company offers a flexible work environment, promo ...

Senior Software Engineer, Hegel PBT (Python/Rust) London

Antithesis is looking for a software engineer in London to develop Hegel, our property-based testing libraries. You will be responsible for building open-source libraries that enhance software reliability. We value high standards of engineering and collaborative culture. The ideal candidate has experie ...

MOD DV Senior Engineer – Legacy Modernisation, Python/C++

DataCareers is seeking a MOD DV Cleared Senior Software Engineer based in Portsmouth to lead software engineering efforts in a prestigious tech consultancy. The role focuses on complex system maintenance, reengineering, and modernization. The ideal candidate should possess hands-on experience with Pyth ...

Senior Software Engineer SC Cleared | Python & AWS API

Senior Software Engineer- 12 Months - SC Cleared - £625pd Rate : £625 per dayDuration : 12 monthsIR35 : InsideLocation : Remote - 1 day per week in ExeterThe role :A leading G ...

Senior Software Engineer: Python & C/C++ Refactor Lead

Data Careers is seeking a MOD DV Cleared Senior Software Engineer for a permanent position located in Fareham. This role involves hands-on maintenance, enhancement, and evolution of complex software systems with a competitive salary ranging from £80,000 to £90,000 plus benefits. The successful candidat ...

Python API Automation QA Engineer Backend Testing Remote

A leading technology company based in Cambridge is looking for a QA Test Engineer (Python API Automation) to ensure the quality of their core technology platform. The ideal candidate will have strong Python coding skills and test automation experience, focusing on backend testing of cloud-based solutions. The ro ...

Senior Robotics V&V Engineer — Tooling, Python & Linux

Senior Verification & Validation Engineer / Tooling / Python / Linux Location: Wallingford - Oxfordshire Employment Type: Permanent At Dexory, we are transforming the warehousing and logistics industry through data intelligence. We’re currently recruiting f ...

Autopilot Firmware Engineer MAVLink/PX4, C++/Python, RTOS

Stark Defence is seeking an Autopilot Engineer in Taunton, England. You will develop and customize firmware for autonomous systems, focusing on optimizing, debugging, and integrating autopilot functionality. The ideal candidate has a degree in Robotics or software engineering and 3 to 6 years of releva ...

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 ...

FX Data Engineer Contractor: Python & kdb+ in London

Data Intellect is seeking a Data Engineer Contractor with expertise in Python and kdb+. The ideal candidate will develop and maintain core data pipelines for FX BAU and project initiatives, collaborating across teams to optimize data solutions. The position requires strong experience in Python and kdb+ ...

Backend Engineer – Java/Spring Boot & Python (Hybrid London)

Methods Business and Digital Technology Ltd is seeking a Back-end Developer specializing in Java Spring Boot and Python to join their private sector team in London. This hybrid role requires 3 days on-site each week. The successful candidate will lead the rebuild of core architecture, optimize technical connecto ...

AI Engineer: LLMs, Python, AWS, Agentic AI (Remote)

Yolk Recruitment is seeking an experienced AI Engineer to join a fast-growing technology business in Cardiff. This role focuses on building production-grade AI systems that enhance automation and decision-making. Responsibilities include developing scalable AI applications, designing workflows, and collaborat ...

Senior Software Engineer – Python & C# for Semantic Search

LexisNexis Risk Solutions is looking for a Software Engineer III (Python & C#) to architect and build complex systems in Farringdon, UK. You will develop a semantic search API and maintain tools, ensuring quality at every step through code reviews and best practices. The ideal candidate will have profi ...

Senior Python Backend Engineer Hybrid (GCP/REST APIs)

Stars Arena is seeking a Senior Python Developer for a hybrid working model based in London, England. The successful candidate will work with technologies including Python, REST APIs, and Google Cloud Platform. We offer a competitive salary ranging from £45,000 to £70,000 annually. The ideal candidate ...

Senior Python Engineer – Front Office Quant & Trading Tech

TwinThread in London is seeking a Lead Software Engineer to join their Global Equity Derivatives Technology team. In this role, you will collaborate with developers, quants, and traders to deliver innovative trading solutions and maintain core systems. Your contributions will significantly impact trading and ...

Hedge Fund Data Engineer (Python) — Data Platform Innovator

SS&C Technologies is seeking a Python Data Engineer to join their team in London, England. In this full-time role, you will shape hedge fund administration technology and streamline daily operations. Strong skills in Python and familiarity with data engineering practices are essential. The position offers compet ...

Senior Python Engineer for AI Model Training (Remote)

Prolific is seeking Senior Python Developers to join their Expert Network for training AI models. This role involves evaluating code accuracy and providing feedback on model performance. Ideal candidates should hold a relevant degree and have substantial experience in Python development, including expe ...

Senior Python Backend Engineer for AI Education Platform

Hit a glass ceiling in your job? Want to play a key role in building and scaling a start-up where there’s no limit to your progression? The client With all the rage around ChatGPT and AI these days, this is an exciting chance for you to be a part of an Educational AI product’s growth right ...

Senior Python/Go Engineer with Terraform & ML (Remote)

A leading consulting company seeks Senior Software Developers/Engineers with extensive experience in Python and Machine Learning for a strategic project. Responsibilities include working with a dynamic team and developing complex applications. Candidates should have 7-10 years of proven experience and must demon ...

DeFi Systems Engineer – Rust/Python for Latency Trading

Radley James seeks a DeFi Developer in Greater London to join a technical trading team. This role involves building high-performance systems in Rust and Python for decentralized markets, with a strong focus on end-to-end ownership across the trading stack. The ideal candidate will have a software engineering bac ...

Senior Python GUI Engineer (Qt) Real Time Trading

A technology-driven trading firm in London seeks a Senior Python Engineer with Qt expertise to develop high-performance desktop GUI applications for real-time trading. The ideal candidate will have hands-on experience with Qt and a strong willingness to learn. Responsibilities include designing responsive interf ...

Senior Python DevOps Engineer for High Performance Trading

A leading trading firm in Greater London is seeking a dynamic software engineer to enhance their quantitative trading teams. The role involves ensuring production servers are configured properly, writing and maintaining python infrastructure, and addressing trading operational issues. Ideal candidates will posse ...

Senior Backend Python Engineer for Scalable ML Platform

A fast-growing educational technology startup in London is seeking a Senior Back end Python Developer to help build scalable, ML-driven learning systems. You will leverage a modern tech stack, including Python, AWS, Docker, and Terraform, to design high-scale applications that serve millions of users. Collaborat ...

Senior Data Platform Engineer I Database Platform Python

About the role We’re looking for a Senior Platform Engineer to join our Database Platform team. You’ll help build and operate a global platform that’s scalable, reliable, and secure – developing the internal database platform, automation, and tooling that powers hundreds of databases across multi ...

Lead Python Software Engineer Asset Management Data Platform

Job Description Join us to shape the future of data and analytics at JPMorgan Chase. You’ll design and deliver technology solutions that directly impact our Asset & Wealth Management business. Collaborate with talented colleagues in an inclusive, agile environment where your expertise and ideas a ...

Mid Level Software Engineer (Python) RegTech 2026 UK

Suade is building world‑leading regulatory technology aimed at preventing the next financial crisis. Our success is built on the ability of our engineers to work hand‑in‑hand with domain experts, translating concepts from finance and regulation into code. The RegTech Engineer is at the core of this and is ...

Lead Python Software Engineer – Asset Management Data Platform

Join us to shape the future of data and analytics at JPMorgan Chase. You'll design and deliver technology solutions that directly impact our Asset & Wealth Management business. Collaborate with talented colleagues in an inclusive, agile environment where your expertise and ideas are valued. We empower you ...

Front Office FX Python Engineer – Real Time Trading

mthree is seeking a Python Developer to join its Front Office FX Options Technology team in Greater London. In this high-impact role, you will design and support cutting-edge trading systems. Responsibilities include collaborating with traders, enhancing trading algorithms, and integrating systems with regulator ...

Backend Python Engineer — AI Driven, FastAPI, Hybrid London

Job title: Software Engineer Client: Not specified Salary: £120,000 per annum + Benefits Location: London (Hybrid / Flexible Working) The Role We’re supporting a rapidly growin ...

AI Inference Engineer | GPU Scale Rust/Python | Equity

We are looking for an AI Inference Engineer to join our growing team. We build and run the inference engine behind every Perplexity query and deploy dozens of model architectures at scale with tight latency and cost budgets. Our stack is Rust, Python, CUDA, and CuTe DSL.Responsibilities</stron ...

Remote Anti Bot Engineer (Python/Go/Rust/JS)

Adthena is seeking an Anti-Bot Engineer to design and operate large-scale web scraping systems focused on Google search environments. The ideal candidate will have hands-on experience scraping protected platforms, a strong technical background in HTML parsing, and familiarity with data extraction techniques. Thi ...

Senior Python Backend Engineer for AI Prototypes (Remote)

A growing digital consultancy in the UK is seeking a Senior Software Developer (Python) to design and enhance AI prototypes. This role involves working collaboratively with engineers, managers, and designers to deliver high-quality, user-centric solutions. The ideal candidate should have strong experience in Pyt ...

Senior Software Engineer Core Platform (Rust/C++, Python)

Durlston Partners LLP is hiring a Senior Software Engineer in London to design and develop core platforms that enable autonomous systems. You will work alongside exceptional engineers and tackle complex technical challenges in a collaborative culture. The ideal candidate has strong skills in C++, Java, ...

Software Engineer Python Ubuntu Pro client graduate level

Join to apply for the Software Engineer - Python - Ubuntu Pro client - graduate level role at Canonical . Company Overview Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our pla ...

Lead Software Engineer Java / Python Public Cloud Engineering

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. The Cloud Engineering Acceleration team accelerates delivery of strategic public cloud platform solutions by providing agile, cross-functional engineering capability across Public ...

Senior Data Engineer Lead Python, SQL, AWS, Microservices

A leading financial institution in London seeks a skilled Lead Data Engineer to enhance and deliver top-tier technology products. This role includes leading a team of Data Engineers, conducting Agile ceremonies, and delivering cloud-native microservice applications. The ideal candidate should have strong experti ...

Senior Backend Software Engineer (Python) in London NLPatent

Overview London, United Kingdom Posted 2 months ago This is a job posted by our partner Jooble Below is the snippet of the job description. To read the full text, please click on the Apply Now link. Qualifications 5+ years of commercial engineerin ...

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    Full Stack Engineer Python Javascript Jobs in United Kingdom Job Search Guide, Trends and Insights