2,113,803+ Full Stack Java Developer Python Jobs in UK — Top Companies Hiring June 2026

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Lead ML Engineer MLOps, Cloud & AI Platform

TwinThread is seeking a Lead Software Engineer to design, build, and deploy scalable AI/ML solutions within the International Consumer Bank MLOps team. You will collaborate with diverse teams to translate business initiatives into robust systems, delivering secure banking experiences. This role require ...

Lead Platform Engineer, Data & Orchestration

Grapevine is looking for a hands-on engineer to evolve the core data and content orchestration layer. This role involves integrating booking data, designing multi-channel messaging, and maintaining platform reliability. A successful candidate will have strong skills in Java/Python, SQL, and experience ...

Backend Engineer Build Scalable Systems for 1M+ Users

DEPOP is looking for a talented Backend Software Engineer to join our team in Greater London. This role involves collaboration with cross-functional teams, including mobile, web, and machine learning. You will design and develop high-quality code used by millions of daily users. The ideal candidate has ...

Applied Scientist, Agentic AI & Formal Verification

Amazon is looking for an Applied Scientist for the Agentic Automated Reasoning Group in London. This role involves pioneering software verification tools utilizing AI and cloud capabilities. You will collaborate with teams and leverage innovative techniques for code analysis and verification. A Master’ ...

AI Platform Lead for Identity & Fraud Solutions

RELX is seeking a Technical Lead to guide a multidisciplinary team in delivering AI-powered services in digital identity and fraud detection. The role combines technical leadership, project management, and mentoring in a dynamic AI environment. Ideal candidates have over 7 years in ML engineering with ...

Senior Infra Engineer — Cloud‑Native Backend & CI/CD

A technology company in London seeks a Senior Software Engineer I for its Infrastructure Services team. The role involves designing and building core systems for backend services while ensuring scalability and reliability. Candidates should have strong programming skills in languages like Java, Go, or Python, an ...

Kubernetes Data Platform Engineer — Cloud Native

A leading digital bank in the UK is seeking talented data professionals to join their team. The role involves leading the design and implementation of robust cloud-native data infrastructure, focusing on scalability and security. Ideal candidates will have expertise in Kubernetes, strong programming skills in Py ...

Security Cleared Software Engineer Cloud, Agile & Growth

A growing technology company in the UK is looking for Software Engineers to design and maintain high-quality software systems. This role involves working on meaningful projects in a flexible environment. Candidates should have strong foundational skills in software engineering, with experience in languages like ...

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, ...

VP Lead Software Engineer, Margin Tech — Hybrid

Citigroup Inc. is hiring a Lead Software Engineer to join their global technology team in London. You'll be working on complex problems with a focus on delivering robust software solutions. Candidates should have significant software development experience and proficiency in languages such as Java and Python. Th ...

Secure Software Engineer Bristol Hybrid SC Cleared

Searchability is seeking an experienced Software Engineer to join their team in Bristol. This hybrid role allows for 3 days onsite work, focusing on delivering secure software solutions for defence projects. The successful candidate should be proficient in Python, C#, or Java, with exposure to AI or Machine L ...

Cloud Native Data Platform Engineer

A financial technology company in the UK is seeking a skilled engineer to design and implement cloud-native Warehouse and Machine Learning platforms. You will manage and optimize infrastructure using Kubernetes, Terraform, and integrate with AWS and GCP. The role offers a hybrid working model, 25 days of holiday ...

AI Software Engineer — Hybrid, Own AI Tools & Impact

Trtl, a travel accessories brand based in Glasgow, is seeking a Mid-Level AI Software Engineer to join its technology team. This role focuses on building, maintaining, and extending AI-powered tools to enhance company operations. The ideal candidate should be proficient in JavaScript, Java, or Python a ...

Senior Engineering Manager, Quantitative Finance Platform

Citigroup Inc. is looking for a Senior Engineering Manager to lead the Loan Portfolio Mitigation Application (IRIS) in Westminster, UK. This role involves overseeing a team of developers while driving the technical strategy and ensuring high standards of software engineering excellence. The candidate w ...

Platform Engineer: Build the Global Risk Platform

Wise is looking for a Platform Engineer in the Risk Domain to help build systems for safe global products. You'll work at the intersection of product and risk, crafting foundational services that enable internal teams to ship faster and smarter. Strong backend programming skills in Java, Python, or Go ...

Senior Security Engineer: Secure, Scalable Apps

A leading global financial services firm is seeking a Software Engineer III to join their agile team in Bournemouth, England. The successful candidate will design and deliver trusted market-leading technology products. Responsibilities include developing secure production code, analyzing large data sets, and con ...

Machine Learning Engineer AI Models & Systems

A leading AI technology company in Greater London is seeking a talented Machine Learning Engineer to develop and implement cutting-edge artificial intelligence products. The role requires designing sophisticated models and refining existing systems. Ideal candidates will have a strong background in programming l ...

Senior Network & Cloud Automation Engineer

A global telecommunications company is seeking a Senior Network Development Engineer responsible for designing, deploying, and supporting network fabric and systems. This role involves collaboration with cloud service providers and requires a deep understanding of networking protocols and cloud technologies. Ide ...

Software Engineer – AI & Secure Systems (On Site)

A leading tech firm in Greater London is hiring a Software Engineer to join their cutting-edge team focused on developing innovative, mission-driven technology. This role emphasizes building impactful AI-powered tools and secure systems, requiring existing SC or DV clearance. Ideal candidates are skilled in lang ...

Senior Lead SWE, Commodities Tech (Base Metals)

JPMorgan Chase is seeking a Senior Lead Software Engineer within the Base Metals team in London. You will enhance and deliver technology products while driving significant business impact. The ideal candidate has over 5 years in software engineering and strong management skills. You will ensure the dev ...

Senior Machine Learning Engineer AdTech Platform

Roku is seeking a seasoned machine learning engineer to join our Ad Performance team in Manchester. This role involves building cutting-edge advertising technology aimed at improving campaign effectiveness through advanced ML methodologies and data analysis. The ideal candidate will have a strong backg ...

Software Engineer Hybrid: React UI + Backend, Docker & CI/CD

Talent Locker Ltd is seeking a Software Engineer for their Farnborough location, offering a hybrid working model with a competitive salary between £70,000 and £80,000. The role involves designing, developing, and maintaining software solutions within secure environments. Candidates should possess exper ...

Platform Architect Data Streams & Real Time Analytics

Yelp Inc. is looking for experienced engineers in Glasgow to build scalable data platforms and optimize the user experience. This role involves working with large-scale distributed systems, including data streaming and coding primarily in Python and Java. The successful candidate will lead projects, me ...

Senior Test Automation Architect: Framework Lead & CI/CD

A leading technology firm in the UK is seeking an experienced test automation professional with over 15 years of hands-on experience in various automation technologies, including Java and Python. Your responsibilities will include managing the Test Automation framework, ensuring adherence to governance standards ...

ML Projects Software Engineer — Build AI Features

Starling is seeking a software engineer to join their ML Projects team, located in Greater London. The role involves designing and maintaining machine learning features, encouraging innovation and collaboration among teams. The ideal candidate will have extensive experience building complex systems and famili ...

Test Automation Lead: UI/API & CI/CD Architect

Inspired Testing is seeking a Test Automation Lead to enhance automated testing processes. This hybrid role, based in Leeds or Bradford, requires strong hands-on experience in automation engineering and the ability to mentor other engineers. You'll design and improve automated frameworks, integrate testing into ...

Senior Platform Engineer: AI Driven SDLC & Cloud Ops

A diversified trading firm is seeking a skilled Software Engineer to design and maintain build/release/run tooling for development teams. Candidates should have six or more years of experience in software engineering and proficiency in GitHub Actions and at least one programming language such as Python, Go, Java ...

AI Driven Lead Software Engineer (Remote)

Scott Logic is seeking a Lead Agentic Software Engineer in Edinburgh to drive AI-augmented software development practices. You will lead a multidisciplinary team to solve complex software problems and influence client development practices. Ideal candidates should have strong technical leadership skills and a go ...

Senior Ads Analytics Engineer API, Spark & Airflow

Roku is seeking a highly skilled Senior Software Engineer in Cambridge, England, to lead API Development and Big Data pipelines. With a strong emphasis on software and data engineering, the role involves designing, building, and maintaining scalable systems. Candidates should have 8+ years of experience, experti ...

Associate Director, Quant Equity Derivatives & Analytics

Scotiabank is seeking an Associate Director within the Global Analytics and Financial Engineering team in London. This role involves supporting the London Equity Derivatives trading desk and collaborating closely with teams in Toronto and New York. The successful candidate will develop derivatives valu ...

Software Engineer Intern Integrations (Risk Tech)

Quant Blueprint LLC is offering an internship program in Greater London aimed at students pursuing degrees in fields like Statistics or Computer Science. Interns will collaborate with senior team members, work on a project that adds value to the business, and gain insights into financial markets. Appli ...

Senior Performance Test Engineer – Remote & Cloud Focus

A dynamic technology company in Manchester seeks a Senior Test Engineer to lead performance testing initiatives. You will drive testing strategies, analyze results, and mentor fellow testers. The role demands over 3 years in testing, proficiency with tools like JMeter and Gatling, and programming experience in l ...

ML Projects Engineer: AI Driven Banking Systems

A leading digital bank in the UK is seeking a skilled software engineer to join their ML Projects team. This role involves designing and implementing machine learning features that enhance their banking platform. Candidates should thrive in a fast-paced environment and are encouraged to take ownership of their w ...

Embedded Test Automation Engineer for IoT Medical Devices

Medtronic is seeking a Software Development Engineer in Test to enhance our software testing lifecycle through the development of automated test solutions. Your role will encompass designing, developing, and maintaining automated frameworks, specifically for embedded systems used in operating rooms. Ca ...

Senior Platform Engineer Java Microservices (Hybrid)

A leading streaming platform is looking for a senior technical lead to design and develop scalable web applications. This role requires 5+ years of experience in software architecture, solid skills in Java and Python, and a proactive approach to project management. The position entails ownership of projects and ...

Global Cloud SRE: Observability & Automation

A global industrial technology leader is seeking a Cloud Site Reliability Engineer in Newcastle upon Tyne to lead an OTel-first strategy and manage an observability platform. This role involves optimizing platform performance using automation and Infrastructure as Code, collaborating with engineering teams, and ...

Senior Data Engineering Software Engineer

A leading financial technology company in Nottingham seeks a Senior Software Development Engineer to drive the evolution of its cloud-based data ecosystem. The role involves working with Java, Python, and React/Typescript to solve complex problems and improve customer experiences. Candidates should have experien ...

Senior Software Engineer, Unified Platform Data & APIs

DRW Holdings, LLC. in London is seeking a Senior Software Engineer for the Unified Platform organization. You will develop innovative systems that support research and trading, working closely with internal customers to build self-service tools. The role demands strong programming skills in Java or Pyt ...

Software Engineer, Equity Index Options Low Latency

A leading trading firm in Greater London is seeking a Software Engineer to design and develop proprietary software for trading systems. This role requires an undergraduate degree in a relevant field and at least 2 years of experience in programming languages like Java, C++, and Python. The successful candidate w ...

Principal Data Architect — Cloud Data Platforms for AI

Energy Jobline ZR is seeking a Principal Data Architect in Greater London to lead the design and delivery of scalable, cloud-based data solutions. You will work with cross-functional teams to define requirements and deliver high-quality data architectures. The ideal candidate has a strong track record ...

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, ...

Head of Analytics Engineering: AI Driven Pricing & Risk

The London Stock Exchange Group is seeking a Head of Analytics Engineering responsible for leading the strategy, design, and delivery of analytics products. This role involves ensuring scalability and production-grade quality of analytics capabilities in client workflows.Candidates should have a Master ...

Applied Scientist, Prime Video Commerce Personalization

Amazon in Greater London is seeking an Applied Scientist for Prime Video Commerce Insights. You will innovate and implement recommendation systems that enhance customer experiences using advanced machine learning techniques.This role involves collaborating with engineers and providing thought leadershi ...

Applied Scientist, Agentic AI & Formal Verification

Amazon is looking for an Applied Scientist for the Agentic Automated Reasoning Group in London. This role involves pioneering software verification tools utilizing AI and cloud capabilities. You will collaborate with teams and leverage innovative techniques for code analysis and verification.A Master’s ...

Applied Scientist: Ad Matching & Personalization

Amazon Development Centre (London) Limited is seeking an Applied Scientist to optimize ad matching in programmatic advertisements. Responsibilities include designing deep learning models and improving their performance. Candidates should have strong programming skills in Java, C++, or Python along with a rele ...

Senior Developer

* Senior Developer * Permanent (must have or be able to obtain SC Clearance) * Redhill, Surrey * Up to £60,000 Per Year * Plus an excellent benefits package (including Pension, Bonus, Training and Development, Healthcare, etc.)Skills and Experience: * Ability to work effectively as p ...

Remote Fullstack PHP Developer — Laravel + React (UK)

A tech company is seeking a Fullstack PHP Developer to work remotely from the UK, offering a salary of up to £55,000. The role involves developing applications using Laravel and ReactJS, collaborating with a distributed team, and contributing to both internal and client-facing projects. Ideal candidates will hav ...

Senior Python Engineer Cloud, Serverless & Mentorship

NCC Group is seeking a skilled Senior Python Developer within its Software Engineering team. In this role, you'll design and maintain scalable software solutions, primarily focused on Cyber Security products. Your expertise will guide junior developers and ensure adherence to best practices while collaboratin ...

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 ...

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