2,198,966+ Full Stack Java Developer Python Jobs in UK — Top Companies Hiring June 2026

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Quant Developer (C++)

Position OverviewAs a member of collaborative team, develop and maintain critical high-performance trading and signals logics and supporting infrastructure. Work side-by-side with quant researchers and traders, assisting in implementation of trading strategies and research projects. Collaborate ...

Build Engineer

Hybrid work model - 3 days in the office, 2 days wfh 6 months contract with possible extensions 5V Tech are working with a fast-growing deep tech company building a completely new class of AI accelerator hardware and software from first principles. They’re no ...

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 ...

Identity & API Engineer — Cloud IAM & Pub/Sub

A global consulting firm is seeking a highly skilled Application Developer to focus on identity API development within the Google Cloud Platform. The role requires experience in building secure, scalable identity workflows and integrating identity services with APIs and event-driven architectures. Responsibiliti ...

Senior Front Office Equities Derivatives Engineer Hybrid

Apex Systems is seeking a Mid-Level Developer in Bromley, UK to join their Equities Derivatives Technology team. The role involves developing automation solutions and requires at least 7 years of technology development experience, including 3 years in equities derivatives systems. Responsibilities include design ...

Platform Engineer: Build & Scale Developer Platform

A diversified trading firm in Greater London seeks an individual with extensive experience in CI/CD systems and software development to enhance the developer experience. The role focuses on implementing and maintaining tooling for development teams and requires proficiency in Python or similar languages, as well ...

Edge AI C++ Engineer — Real Time, Low Latency

A VC-backed AI technology company is seeking a C++ Developer to be part of a fast-scaling startup in Greater London. You will work with a highly experienced team on an edge computing platform, responsible for building high-performance applications and deploying machine learning models. The ideal candidate holds ...

Senior Platform Engineer Cloud & DevX Leader

A leading marketing technology firm in Glasgow is looking for a talented developer proficient in programming languages like NodeJS and Python, with extensive experience in Kubernetes and observability tools. You will drive a high-performance culture while supporting high-stakes projects and collaborating with te ...

Lead Backend Engineer — APIs, Data & Cloud

A leading AI platform company in Greater London is looking for a skilled backend developer who excels in Python and has experience with Flask and FastAPI. This role offers the opportunity to take technical leadership on diverse projects while working closely with cross-functional teams. You will be responsible f ...

AI Engineer: Deploy Production‑Ready AI at Scale

A leading metal trading company in Birmingham is seeking an experienced AI developer. This role involves designing and deploying AI solutions across various business operations. The ideal candidate should possess strong Python development skills and a genuine passion for AI. You'll have the opportunity to work o ...

AI Solutions Engineer Defence Training

Prattwhitney is seeking an AI/ML Developer in Warminster to support the British Army's training objectives through the development and integration of AI solutions. You'll handle tasks including data processing, model evaluation, and collaborate with cross-functional teams to ensure secure deployments. ...

Senior Backend Engineer: Foundry Ready AI Platform

A dynamic UK deep-tech company is seeking a backend developer with a focus on Python and extensive experience in event-driven architectures. You will design scalable services, build RESTful APIs, and work with Palantir Foundry. The role emphasizes autonomy and impact, offering a hybrid working model and extensiv ...

Quantitative Developer High Performance Trading Systems

A leading systematic hedge fund in the UK is seeking a Quantitative Developer to design, implement, and maintain trading systems. This role combines software engineering and quantitative research, focusing on building reliable tools for systematic investment strategies. Candidates should have strong programming ...

Delta One Quant Developer – London

DRW in London is seeking a talented Quantitative Developer to implement software solutions impacting trading strategies across asset classes. You will design and deploy proprietary software for algorithmic trading, working closely with quantitative researchers. Ideal candidates should have a degree in a technica ...

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 ...

Backend SaaS Engineer — Open Source (Remote, Global Travel)

A leading open-source software firm is seeking a Software Developer (Backend SaaS) to join their distributed team. This role requires strong proficiency in Python and web frameworks like Flask and Django. Responsibilities include writing code, collaborating with a global team, and participating in code reviews. ...

Senior Python Engineer – Global FinTech Backend (Hybrid)

Grid Dynamics Holdings is looking for experienced engineers in the Greater London area. The successful candidate will be primarily a Python developer with a strong background in developing global-scale software systems for financial institutions. Responsibilities include building complex systems, developing back ...

Graduate Quant & Systems Engineer (Trading Tech)

Hunter Bond is looking for a Graduate Software Developer to join a prestigious buy-side firm in London. You will work in a hybrid environment, focusing on high-performance systems and quantitative models from day one. Ideal candidates will have a strong STEM background, programming skills in Python or ...

Staff ML Engineer: Developer Tools & ML Deployment

ARM in Cambridge, UK, is hiring a Staff Software Engineer to join their innovative team. You will work on developer-facing tools and contribute to machine learning software solutions. The role requires expertise in Python and/or C++, strong problem-solving skills, and the ability to collaborate within teams. The ...

SC Cleared AI Engineer – Production AI, Hybrid

Morgan Hunt Recruitment is seeking an experienced AI Developer (SC Cleared) for a hybrid role based in Canary Wharf, London. This contract position, paying £700-£800 per day, involves designing and deploying cutting-edge AI solutions for a leading UK government organisation until September 2026. The id ...

Graduate Quant & Systems Engineer (Trading Tech)

Hunter Bond is looking for a Graduate Software Developer to join a prestigious buy-side firm in London. You will work in a hybrid environment, focusing on high-performance systems and quantitative models from day one. Ideal candidates will have a strong STEM background, programming skills in Python or ...

C++ Quant Developer Front Office Trading & Risk

RJC Group is seeking a skilled developer in the Greater London area. The role focuses on developing well-structured and scalable code for a Tier-one energy trading company. Candidates should have expertise in C++ and preferably some exposure to Python. The successful candidate will work closely with th ...

Senior Quant Developer — Commodities Trading Systems

Aurum Search Limited is partnering with a systematic hedge fund to find a high-level Quantitative Developer (Commodities) in London. You will join the Investment Management & Research team and be responsible for designing, building, and optimizing robust trading systems. The ideal candidate should have ...

Quantitative Developer: Pricing Models & Risk Analytics

TradingHub Group is seeking a Quantitative Developer to design and validate pricing models. The role requires proficiency in C#, C++, or Python and experience in financial markets to develop financial pricing libraries and algorithms. The successful candidate will work in a dynamic environment, with re ...

Quant Developer: AI Driven Trading Systems

Hunter Bond is seeking a Quant Developer to join an ambitious investment firm focused on building high-performance trading systems across multiple asset classes. The role involves designing, building, and optimizing trading systems that directly impact profitability from day one. Candidates should poss ...

AI Architect & Senior Analyst Developer Lead

USS Investment Management Limited is seeking a Senior Analyst Developer - AI Lead based in London. This role focuses on providing technical guidance and architectural oversight for AI solutions within the company, targeting integration with strategic objectives. Successful candidates will possess expertise in AI ...

Quant Developer Analytics Platform & High Performance Trading

Barclays Bank PLC is seeking a Quant Developer for its Analytics Platform team at the Canary Wharf, London office. The ideal candidate will design and develop trading platforms, utilizing strong Python and C++ skills while collaborating with stakeholders to enhance performance and reliability. This rol ...

AI Driven Trading Data Analyst

Janus Henderson Global Investors is seeking an AI developer for their EMEA Equity Trading team. This role involves analyzing trading data and automating processes using AI. Candidates should have a strong technical background, particularly in Python and AI, and the ability to communicate effectively with trad ...

Senior C/Python Systems Engineer Linux & HSM Tools

慨正橡扯 located in Cambridge is seeking a Senior Software Developer. This role involves working with Linux system tools utilizing Python scripting and C coding within embedded hardware security modules. The ideal candidate will be responsible for developing software features from requirement gathering thr ...

Trading Systems Engineer: Python, APIs & Data Pipelines

NextWave Consulting Ltd is looking for a mid-level Trading Systems Developer in London to enhance their financial services technology platforms. The role emphasizes developing applications, APIs, and data workflows primarily using Python. Experience in financial services is preferred, promoting both learning ...

Senior Data Scientist — ML, NLP & Generative AI for Science

LexisNexis Risk Solutions in Greater London seeks a skilled AI Developer to design and build machine learning, NLP, and generative AI solutions. You will work with large-scale scientific content and data, and develop capabilities for semantic search, information retrieval, and more. Ideal candidates ha ...

Remote Backend Engineer – Data Centre Platform

TGS International Group is seeking a Back end Software Developer specializing in Python for remote work. This role involves the development and maintenance of high-performance backend services and supporting infrastructure. Key responsibilities include designing scalable systems, building RESTful APIs, ...

Backend Systems Intern — Build scalable game services

IMAGE FRAME INVESTMENT (UK) LIMITED is seeking a backend developer to participate in the architecture design and implementation for Level Infinite PASS. The role involves ensuring high availability of backend services for overseas games. A Bachelor’s degree in Computer Science or related field is requi ...

Power BI & Data Analytics Developer

A leading data solutions provider in the United Kingdom is seeking a Power BI Developer. The successful candidate will be responsible for developing reports and dashboards using Power BI, and must have strong skills in data modeling, SQL, and Python. A bachelor's degree in computer science or a related field is ...

Remote Senior Software Engineer: Fleet Dispatch & Routing

Data Drive - The Mobility Intelligence Company is hiring a Senior Software Developer to contribute to developing a cutting-edge platform for routing and fleet dispatching. The role offers remote work opportunities and involves collaborating with a dynamic R&D team. Candidates should have a Bachelor's d ...

Trading Platform Engineer – Infra & Automation

Paragon Alpha - Hedge Fund Talent Business is seeking a Platform Support Engineer to join their Quantitative Developer Platform team in London. The role involves supporting a high-performance research and trading environment by focusing on infrastructure and platform support. Key responsibilities inclu ...

C++ Quant Developer Front Office Trading & Risk

RJC Group is seeking a skilled developer in the Greater London area. The role focuses on developing well-structured and scalable code for a Tier-one energy trading company. Candidates should have expertise in C++ and preferably some exposure to Python. The successful candidate will work closely with th ...

Secure Android Developer: Kotlin + Backend & DevOps Hybrid

Addition is looking for a software developer based in Cheltenham to design and build secure technology for Defence and National Security. The role involves backend development using languages such as Rust and Python, and requires experience with CI/CD and Docker. You will be working in a hybrid model, ...

Lead Software Engineer Backend & Edge/IoT, Hybrid

Faculty AI in Reading is seeking a Lead Software Engineer to spearhead backend and edge/IoT engineering for high-stakes Defence projects. You will be responsible for leading a team, designing scalable software solutions, and implementing CI/CD processes using Docker and Kubernetes. The role requires a ...

SC Cleared Frontend Developer | React/TS/Next.js | Hybrid

Synergize Consulting is seeking a Contract Security Cleared Frontend Developer to join their ongoing programme of work. The role involves working collaboratively with designers, backend engineers, and stakeholders to deliver top-notch user interfaces based on existing prototypes and user needs. Ideal c ...

SC Cleared AI Engineer – Production AI, Hybrid

Morgan Hunt Recruitment is seeking an experienced AI Developer (SC Cleared) for a hybrid role based in Canary Wharf, London. This contract position, paying £700-£800 per day, involves designing and deploying cutting-edge AI solutions for a leading UK government organisation until September 2026. The id ...

DevEx Platform Lead: Build Scalable CI/CD & Templates

United States Digital Space LLC in Greater London seeks a Lead DevEx Engineer to enhance how engineers build, ship, and operate services. You'll focus on evolving templates and standards, contributing to AI-enabled initiatives, and leading technical decisions across teams. The role requires proficiency ...

FX Options Quant Dev (Hybrid) — Real Time Pricing & Risk

United States Digital Space LLC in London is seeking a Quantitative Developer to join the FX options team. The role involves building and maintaining pricing and risk infrastructure for FX Options trading. The ideal candidate will design quantitative models and develop software in C++ and Python, worki ...

C++ Trading Engine Engineer Hybrid London Contract

Sivara GmbH is seeking a C++ Software Developer to work in the financial industry, specifically in London. This role involves implementing software solutions using various languages including C++, Rust, and Python, focusing on trading systems and API communication. The ideal candidate will have strong ...

Contract Python API Engineer — AWS & Data Platforms

Parker Shaw is currently recruiting an experienced Software Developer for a 12-month contract in Exeter, initially two days a week on-site.Your team will enhance public access to data through various digital channels, focusing on robust APIs. You will develop user-centric software, follow coding be ...

On Site AI Engineer for Secure Systems & LLMs

ENGINEERINGUK is seeking an AI Engineer / Developer to design and deliver advanced AI solutions for mission‑critical systems in the Space, Defence and Intelligence sector near Gloucester. This role involves developing applications to unlock data value and enhance decision-making. Key qualifications inc ...

Quant Developer: Build Production Algos & Data Systems

A leading financial technology firm in Greater London is seeking an exceptional Quantitative Developer to design and implement proprietary systems that drive financial strategies. The ideal candidate will have 5+ years of software engineering experience, strong fundamentals in computer science, and proficiency i ...

Software Engineer Platform Automation & Testing

Apple is seeking a SWE Developer to contribute to a unified automation system for new platform development. This role will involve designing client-side libraries, creating standardized APIs, and managing device connections to enhance testing capabilities. The ideal candidate will have a strong softwar ...

Quantitative Developer High Performance Trading Systems

A leading systematic hedge fund in the UK is seeking a Quantitative Developer to design, implement, and maintain trading systems. This role combines software engineering and quantitative research, focusing on building reliable tools for systematic investment strategies. Candidates should have strong programming ...

Real Time AI Engineer Ground Ops, First Engineering Hire

A pioneering AI startup in London is seeking a Junior Software Developer to be the first engineering hire. You will design and implement real-time AI systems to improve airport ground operations. The role offers significant ownership in developing a platform that generates high-accuracy predictions for flight de ...

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    Full Stack Java Developer Python Jobs in United Kingdom Job Search Guide, Trends and Insights