Lead Software Engineer Python Java Jobs in London, UK

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Senior Python Engineer for Real Time Trading Tech (London)

Radley James is seeking a Senior Python Engineer to join their London team. In this role, you'll develop Python applications that enhance trading strategies and data analysis, work with quants and traders, and lead code reviews. A minimum of 5 years in Python development is required, along with deep knowledge of ...

QA Automation Engineer – Python, CI/CD for C++ Apps

A technology company in Greater London is seeking a Testing Specialist responsible for functional and regression testing of complex C++ applications. The ideal candidate will develop a Python testing environment and ensure comprehensive testing coverage. Required skills include 3+ years in testing, proficiency i ...

Data Engineer Contractor (Python / kdb+) in London Data Intellect

Data Engineer Contractor (Python / kdb+) Location: London, United Kingdom Tech Stack kdb Python core data Data Engineer Key Responsibilities Develop and maintain core data pipelines supporting FX BAU and small scale p ...

Mid Level Test Engineer (Hybrid) – London

Location: LondonStart date: Immediate The role:AlphaSights is looking for a self-driven Test Engineer to join the Software Engineering Team. We are a digital business in which continuous uptime and product quality and user experience are critical to success. The r ...

Mid Level Test Engineer (Hybrid) – London

Location: LondonStart date: Immediate The role:AlphaSights is looking for a self-driven Test Engineer to join the Software Engineering Team. We are a digital business in which continuous uptime and product quality and user experience are critical to success. The r ...

Lead BIM Modelling Engineer

About the job Lead BIM Modelling Engineer Job Overview As a Railway BIM Modeling Engineer, you will be responsible for creating and maintaining detailed Building Information Models (BIM) for railway infrastructure projects. Your role will involve collaborating with multidisci ...

Full Stack Developer

**Introduction**At IBM CIC, we provide technical and industry expertise to a wide range of public and private sector clients in the UK.A career in IBM CIC means you'll have the opportunity to work with leading professionals across multiple industries to improve the hybrid cloud and AI journey for the ...

Senior Site Reliability Engineer – FinTech / Global Payments – London HQ / Remote First

Senior Site Reliability Engineer – FinTech / Global Payments – London HQ / Remote First Senior Site Reliability Engineer – FinTech / Global Payments – London HQ / Remote First Get AI-powered advice on this job and more exclusive features. This range is provided by Future Talent Group. ...

Senior Site Reliability Engineer – FinTech / Global Payments – London HQ / Remote First

Senior Site Reliability Engineer – FinTech / Global Payments – London HQ / Remote First Senior Site Reliability Engineer – FinTech / Global Payments – London HQ / Remote First Get AI-powered advice on this job and more exclusive features. This range is provided by Future Talent Group. ...

Software Engineer III Back end Engineer Chase UK

As a Software Engineer III at JPMorgan Chase within the International Consumer Bank, you will play a crucial role in delivering an outstanding banking experience to our customers. You will work in a collaborative environment as part of a diverse, inclusive, and geographically distributed team. Job ...

Software Engineer III Back end Engineer Chase UK

As a Software Engineer III at JPMorgan Chase within the International Consumer Bank, you will play a crucial role in delivering an outstanding banking experience to our customers. You will work in a collaborative environment as part of a diverse, inclusive, and geographically distributed team. Job ...

Java Full Stack Engineer Senior Consultant Digital Excellence London

Java Full Stack Engineer-Senior Consultant-Digital Excellence - London Reference Code: -en_GBContract Type:PermanentProfessional Communities: Strategy & TransformationROLE DETAILS SBU - Invent <stron ...

Solutions Engineer Defence and Government

Arqit is a global cybersecurity company delivering world‑leading encryption solutions to secure data and communications for enterprises, governments, defence, and critical national infrastructure (CNI). Powered by advanced symmetric key cryptography, the Arqit SKA-Platform™ offers scalable dynamic encrypti ...

Senior .NET Engineer (Contract)

We're looking for a Senior .NET Engineer (Contract) to join our team in London, United Kingdom in a hybrid working mode. In this role, you will focus on building solutions for the finance sector, leveraging AWS and modern engineering practices. You will drive software design and development, ensure ...

QA Engineer: AI Platform Automation & Security Testing

A technology innovation firm based in London is seeking a QA Engineer to design, automate, and execute tests for their AI platform. The role involves working closely with teams to ensure software reliability and security. Candidates should have strong Python skills and experience in automated testing. Attractive ...

Sensors Data Calibration Engineer for Robotics (Contract)

A technology consulting firm in London is seeking a Datasets Software Engineer (Contractor) to support data calibration workflows. The role involves designing calibration workflows for robotics sensors and developing reusable pipelines to standardize data. Ideal candidates should have strong Python skills and ex ...

Full Stack Engineer for AI Driven Low Code Platform

A cutting-edge tech company in London is seeking a Fullstack Software Engineer to enhance their development tools. This role offers an attractive salary of £140k+, stock options, and exceptional benefits. The ideal candidate should have extensive experience in Python and frontend technologies like Vue or React. ...

Senior Front Office Trading Analytics Engineer

A global leader in energy trading seeks a Senior Front Office Software Engineer to enhance trading processes and analytics. This role involves building high-performance Python services and cloud-native tools to support traders, requiring expertise in programming, SQL, and DevOps practices. Candidates with experi ...

Quantitative Research Engineer – Fast Paced Finance

A diversified trading firm is seeking a Research Engineer to join its systematic research team. The role involves implementing trading strategies, developing algorithms, and designing software for data visualization. Candidates should have a Bachelor’s degree in a relevant field and strong skills in modern C++ a ...

Senior GenAI Engineer: Build Enterprise AI Features

Anaplan is seeking a Senior GenAI Engineer to develop innovative AI features and applications that enhance business planning. The role includes backend API development, model integration, and building user-friendly interfaces. Candidates should have strong Python skills, experience with LLMs, and a background in ...

Research Engineer: Quantitative Tech & Trading Systems

A diversified trading firm in London seeks a Research Engineer to join their systematic research team. The role involves implementing research studies, developing algorithms, and designing trading strategy simulation software. Ideal candidates should have a Bachelor's degree in Computer Science, excellent skills ...

Sensors Data Calibration Engineer for Robotics (Contract)

A technology consulting firm in London is seeking a Datasets Software Engineer (Contractor) to support data calibration workflows. The role involves designing calibration workflows for robotics sensors and developing reusable pipelines to standardize data. Ideal candidates should have strong Python skills and ex ...

Senior Front Office Trading Analytics Engineer

A global leader in energy trading seeks a Senior Front Office Software Engineer to enhance trading processes and analytics. This role involves building high-performance Python services and cloud-native tools to support traders, requiring expertise in programming, SQL, and DevOps practices. Candidates with experi ...

Senior Software Engineer – Travel Tech, AI/Cloud, Equity

Perk is looking for a Senior Software Engineer to join our dynamic team in London. This role involves product development using Python/Django and/or React, implementing system architecture, and mentoring junior engineers. You will collaborate closely with our product team, focusing on integrations and ...

Senior Software Engineer – Travel Tech, AI/Cloud, Equity

Perk is looking for a Senior Software Engineer to join our dynamic team in London. This role involves product development using Python/Django and/or React, implementing system architecture, and mentoring junior engineers. You will collaborate closely with our product team, focusing on integrations and ...

Senior Systems Engineer: Performance & Reliability Analytics

Graphcore is seeking a Senior Systems Engineer focused on Performance & Reliability in London. This role involves analyzing performance data from large-scale systems and supporting critical engineering decisions. Candidates should have extensive software engineering experience, proficiency in Python, and familia ...

Senior Linux Systems Engineer Scalable Reliability

Graphcore in London is seeking a Senior Systems Engineer to expand measurement coverage on Linux systems and validate performance and reliability for production. Candidates should have strong engineering backgrounds, especially in software across projects, with proficiency in Python and experience in automation ...

Software Engineer II FX Services Full Stack in London JPMorgan Chase & Co.

Software Engineer II - FX Services Full‑Stack London, United Kingdom Within a technical discipline (e.g., cloud, artificial intelligence, machine learning, mobile, etc.). Experience with Python, NodeJS, TypeScript , and React Hands‑on experience with SQL dat ...

AI Systems Optimisation Engineer — Boost Data Center Performance

Stars Arena is looking for a Systems Optimisation Engineer based in Greater London. This role involves developing software for test automation, particularly using Python or C++. Candidates should also have experience with metaheuristic optimisation techniques. The position offers a full-time commitment. While co ...

Full Stack Engineer for AI Driven Low Code Platform

A cutting-edge tech company in London is seeking a Fullstack Software Engineer to enhance their development tools. This role offers an attractive salary of £140k+, stock options, and exceptional benefits. The ideal candidate should have extensive experience in Python and frontend technologies like Vue or React. ...

Senior GenAI Engineer: Build Enterprise AI Features

Anaplan is seeking a Senior GenAI Engineer to develop innovative AI features and applications that enhance business planning. The role includes backend API development, model integration, and building user-friendly interfaces. Candidates should have strong Python skills, experience with LLMs, and a background in ...

Senior Automation QA Engineer

Job Description Senior Automation QA Engineer London / Remote options available £65,000-£75,000 We are currently working exclusively with a fast growing and recognised healthTech Saas Technology business continuing to scale and are looking for an experi ...

Senior Automation QA Engineer

Job Description Senior Automation QA Engineer London / Remote options available £65,000-£75,000 We are currently working exclusively with a fast growing and recognised healthTech Saas Technology business continuing to scale and are looking for an experi ...

Staff Backend Engineer in London Zego

Senior Software Engineer, Machine Learning Location: 108 E 16th Street, New York, NY 10003 Overview Focus on Python-based backend systems as the primary area of work. Provide support for Machine Learning initiatives and may collaborate with Scala and Mobile teams depending on inter ...

Senior software engineer payroll in London Rippling

Senior software engineer payroll London, United Kingdom Posted 9 months ago This is a job posted by our partner Jooble. Tech stack Python React Django Key Qualifications Strong written and verbal communica ...

Senior software engineer payroll in London Rippling

Senior software engineer payroll London, United Kingdom Posted 9 months ago This is a job posted by our partner Jooble. Tech stack Python React Django Key Qualifications Strong written and verbal communica ...

Senior Application Backend Engineer (Core Java) (Remote United Kingdom)

JOB DESCRIPTION SummaryYelp engineering culture is driven by our : we’re a cooperative team that values individual authenticity and encourages creative solutions to problems. All new engineers deploy working code their first week, and we strive to broaden individual impact with support fr ...

Senior Application Backend Engineer (Core Java) (Remote United Kingdom)

JOB DESCRIPTION SummaryYelp engineering culture is driven by our : we’re a cooperative team that values individual authenticity and encourages creative solutions to problems. All new engineers deploy working code their first week, and we strive to broaden individual impact with support fr ...

Java Full Stack Engineer (DV Cleared) Consultant Digital Excellence

Overview Java Full Stack Engineer (DV Cleared) - Consultant - Digital Excellence at Capgemini Invent. YOUR ROLE Our DV Cleared Java Full Stack Engineers are responsible for creating the visions of our clients and driving better business outcomes. They are tasked with building cutti ...

DevOps Engineer CI/CD Leader (Java/Node) on Azure

A leading specialist (re)insurer is looking for a talented DevOps Engineer with a development background to join their innovative technology team in London. This hands-on role involves implementing best practices in CI/CD processes, driving automation and ensuring smooth software delivery. The ideal candidate wi ...

Principal Java Engineer Real Time Payments (Hybrid UK/US)

A technology consulting firm is seeking a Principal Java Engineer to join their team in London. The ideal candidate will have over 10 years of experience in Java development, particularly with low-latency systems in payments processing. Responsibilities include designing backend systems, building RESTful APIs, a ...

Principal Java Engineer: Low Latency Payments (Hybrid UK/US)

A business technology consulting firm is seeking a Principal Java Engineer to enhance their engineering team in London. This hybrid position requires extensive Java experience, particularly in low-latency and high-throughput systems within the payments processing domain. Candidates should have a strong grasp of ...

Senior Java Engineer for Quote API — Hybrid, High Impact

A prominent retail company is seeking a Java Engineer to join the Engineering Enablement team in London. This role involves building and maintaining components critical for the modernization of our pricing and promotions platform. The ideal candidate should have strong experience in Java 8+, cloud services, and ...

Senior Full Stack Engineer (Java + React) — AI Driven Apps

We are looking for a Senior Full-Stack Engineer to join our global Investment Banking client. You will be responsible for the development and overall implementation of AI-enabled web applications in a complex, critical and large cross-departmental and multi-disciplinary area.The role is part of a multi-ye ...

Senior Java Engineer Low Latency Payments, Hybrid UK/US

A technology consulting firm is seeking a Principal Java Engineer to join their high-performing engineering team in London. This hybrid role involves designing low-latency, high-throughput systems and optimizing backend services using Java. Ideal candidates will have over 10 years of Java development experience ...

Senior Java Engineer Product Tech (SaaS, Remote 2d/wk)

Burns Sheehan is seeking a Senior Java Engineer to join a leading B2B SaaS technology business in London. You will be instrumental in designing and building scalable products that deliver business value. The role invites a proactive engineer with a strong Java background, especially in Spring Boot and cloud-base ...

Java Engineer for Live FX Trading Systems (Backend/Cloud)

Albert Bow is hiring a Java Engineer to join a small elite team within a buyside FX trading firm. This role involves developing backend systems like the core trading infrastructure and Order Management System. Candidates should possess strong Java skills, experience with Spring Boot, AWS, and Terraform, and be c ...

Backend Java Engineer Kazakhstan/Russian speaker (6 months Contract)

Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatch ...

Senior Java AI Enablement Engineer: Modernize CI/CD & Microservices

A leading financial services provider based in the UK is seeking an experienced engineer to modernise services using AI. In this hands-on role, you will demonstrate how AI can enhance productivity and code quality. You will have responsibilities ranging from refactoring to testing and debugging, while also provi ...

Senior Java Engineer – Enterprise Grade Apps (Spring, CI/CD)

A financial markets technology leader is establishing a talent pipeline for a Senior Java Engineer role. The position requires expertise in designing scalable Java applications using modern frameworks. Candidates should demonstrate proficiency in Java SE, object-oriented programming, and have a strong understand ...

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    Lead Software Engineer Python Java Jobs in London Job Search Guide, Trends and Insights