Lead Software Engineer Python Java Jobs in London, UK

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Senior Web Engineer Hybrid London/Amsterdam, Python/Django

A technology firm is hiring a Senior Software Engineer to design and maintain high-performance web applications. This role requires strong Python and JavaScript skills, along with experience in frameworks like Django. The ideal candidate will manage features across teams, partake in peer reviews, and support pro ...

Senior Python Engineer — AR/VR Data Capture Systems

A global technology firm based in London is seeking an experienced Software Engineer to join their Reality Labs research team. The role involves developing software for prototype wearable devices and optimizing data collection platforms. Candidates should have over 8 years of experience, strong Linux skills, and ...

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 Python Systems Engineer for AI Collaboration (Contract)

A leading AI solutions provider is seeking a Software Engineer to work remotely on contract for 1 month at $100 per hour. The ideal candidate will develop complex Python systems and collaborate with AI research teams to enhance model performance. Applicants should have experience at top U.S. tech firms and a str ...

Senior Backend Engineer (Python/Django) — Scale, Mentor & Impact

Preply is looking for a Senior II Backend Engineer to create and enhance backend features using Python/Django while leading cross-functional initiatives. This role requires experience in architectural patterns of large-scale applications and strong communication skills in English (B2+). The position focuses on b ...

Remote Senior Python Engineer — Public API & AI Backend

Photoroom is seeking a Senior Python Engineer for its Public API team. The role involves designing and evolving our public API product, crucial for accessing Photoroom's AI capabilities. Candidates should have strong backend experience in Python and skills in API design, particularly with FastAPI. The position s ...

Senior Backend Python Engineer AI Platform, Vice President

Are you looking for a career move that will put you at the heart of a global financial institution? We are seeking an exceptionally skilled Senior Python Software Engineer to architect and implement robust, scalable backend systems that power our advanced AI tools and services. This hands‑on individual con ...

Senior Python API Engineer – AWS SaaS (Remote + Stock)

Client Server is seeking a Senior Software Engineer / Developer in London who specializes in Python, AWS, and API development. You will design and enhance core platform features while working within a collaborative environment. Opportunities include remote or hybrid work, a competitive salary of up to £100k, and ...

Senior Python Engineer | London (Hybrid) | Flask, AWS, Terraform

Senior Python Engineer | London (Hybrid) | Flask, AWS, Terraform OB have partnered with a fast-growth scale‑up backed by top tier investors, and having raised over £50m in funding, they are looking for a Senior Python Engineer with experience in Infrastructure to work cross functionally with the ...

Senior Data Platform Engineer I Database Platform Python

Job DescriptionYou’ll work on high-scale systems used by hundreds of engineers, shaping how we run databases globally through automation, observability, and platform thinking - developing the internal database platform, automation, and tooling that powers hundreds of databases across multiple enviro ...

Full Stack Engineer (Kotlin and/or Python) – VP

Full Stack Engineer (Kotlin and/or Python) – VP Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. Fro ...

Senior Python Engineer – AI Unicorn – London Scale Up

Job Description The Role As a senior backend python engineer for this Computer Vision Scale up you will build highly scaleable data intensive cloud based services and infrastructures that power AI based systems. You will be part of a multidisciplinary team where each member ...

Senior Backend Python Engineer AI Platform, Vice President

Are you looking for a career move that will put you at the heart of a global financial institution? We are seeking an exceptionally skilled Senior Python Software Engineer to architect and implement robust, scalable backend systems that power our advanced AI tools and services. This hands-on individual contri ...

Senior Python Engineer – Data Ingestion – HealthTech – $100m Funding

Job Description The Role As a senior python engineer on the data ingestion team you will work closely with senior stakeholders in the business to build out a Data Ingestion framework and infrastructure that allows seamless transfer of data 24/7. You will •Develop ...

Senior Pipeline Engineer – VFX & Animation

Qualifications Expert proficiency in Python. Strong experience with other languages such as C++ and JavaScript is a plus. Deep understanding of software development best practices including version control (Git), testing, CI/CD, and containerization. Preferred Experience Experie ...

Senior Pipeline Engineer (Brahma) in London DNEG

Qualifications Expert proficiency in Python. Strong experience with other languages such as C++ and JavaScript is a plus. Deep understanding of software development best practices including version control (Git), testing, CI/CD, and containerization. Preferred Experience Experie ...

Remote Senior Platform Engineer (Remote) Xata

Requirements Experience with infrastructure as code. Hands-on experience coding, ideally in Python, Go, or Typescript with a focus on clean, maintainable code. Experience with observability tools and incident management. Staff-Level Full-Stack So ...

Senior Platform Engineer Infra as Code & Observability

Requirements Experience with infrastructure as code. Hands-on experience coding, ideally in Python, Go, or Typescript with a focus on clean, maintainable code. Experience with observability tools and incident management. Staff-Level Full-Stack So ...

Cyber Security Engineer London

About the job Cyber Security Engineer - London Note: This job does not offer any Visa sponsorship. We are looking for applicants already living in the United Kingdom. Overview Our client is seeking a highly skilled and motivated Cyber Security Engineer to their dynamic team ...

Cyber Security Engineer London

About the job Cyber Security Engineer - London Note: This job does not offer any Visa sponsorship. We are looking for applicants already living in the United Kingdom. Overview Our client is seeking a highly skilled and motivated Cyber Security Engineer to their dynamic team ...

SWIFT Technical Consultant

Type of Hire: Experienced (relevant combo of work and education)Position Type: Full time About the Role As a SWIFT Technical Consultant, you will collaborate with international clients to deliver exceptional customer support, especially when advanced troubleshooting is needed. You’ll ...

Senior Python AI Engineer for Live Recommendations (Hybrid)

Mindera is looking for a Senior AI Engineer to join their team responsible for the AI Stylist, a live, AI-driven product. This production-focused role requires strong Python skills and experience with AI applications, particularly in recommendations. The position involves collaborating with engineers and data sc ...

Senior Software Engineer Data Integration

Senior Software Engineer - Data IntegrationJob LocationLondonEmployment typeRegularDepartmentTechnologyTargeted Start DateImmediateDRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in mar ...

Forward Deployed Software Engineer London

Indicium AI was Anthropic’s first European launch partner - and sits among a handful of organisations globally trusted by Anthropic to deploy Claude at enterprise scale. We are also one of the first four OpenAI partners in the UK, and Databricks Ventures has invested in our business and holds a seat on our ...

Lead Software Engineer (Networking / Linux) £80k + 10% bonus Motorsports / Automotive technology

Lead Software Engineer (Linux) Salary: £80k + 10% bonus Industry: Motorsports Location: 3 days in the office – Surrey | Permanent position Come and develop your career with a company any motorsports fan would dream to work for! Opportunities to learn from the best ...

Tech Lead / Lead Engineer

Overview We are seeking a highly skilled and adaptable engineering leader to embed within a client team. This role blends deep technical expertise with leadership and consulting skills. Whether your focus leans more towards line management and broader leadership (Tech Lead) or technical depth and ...

Remote Engineering Manager Salt Search Ltd.

Proficiency in a Recognised Programming Language (e.g., JavaScript, Python, Java). Preferred Skills TypeScript NextJS/React AWS (Lambda/Step Functions, Postgres/Dynamo, CDK) Jest Playwright Engineering Manager (Hands o ...

Senior C# Engineer

Senior Software Engineer – Trading Platform (.NET, Python) London | Investment Banking | Hybrid Working Our top tier Investment Banking client is seeking a Senior Software Engineer to help design, build, and modernise a critical trading platform used across Equity Finance IT / Stock ...

London VP, Full Stack Software Engineering

hackajob is seeking a Senior Vice President, Full-Stack Software Engineering located in Greater London. This role requires extensive experience in software development, with a strong focus on Java, Spring Boot, and Angular technologies. You will lead the development of full-stack applications, mentor junior engi ...

Deputy CTO & Head of Software Engineering

Harrington Starr is seeking a Head of Software Engineering (Deputy CTO) in London to lead engineering teams in developing core Trading Systems. This role requires senior leadership and solid Java development experience, alongside strong knowledge of Capital Markets. The successful candidate will collaborate clos ...

London VP, Full Stack Software Engineering

hackajob is seeking a Senior Vice President, Full-Stack Software Engineering located in Greater London. This role requires extensive experience in software development, with a strong focus on Java, Spring Boot, and Angular technologies. You will lead the development of full-stack applications, mentor junior engi ...

Staff Software Engineer, AI Serving (AI Infrastructure)

Staff Software Engineer, AI Serving (AI Infrastructure) Engineering Flex - London, United Kingdom POS-22139 This role can be Office/Hybrid/Remote based within the UK HubSpot is on the forefront of empowering businesses with cutting‑edge AI, and our AI Infrastru ...

Kotlin Backend Engineer — Payments & Distributed Systems

Katanox is seeking a Software Engineer to enhance backend systems that manage transactions in the hospitality sector. Your role will center on developing secure, high-availability services handling real payments and bookings. Ideal candidates will have strong Kotlin or Java backgrounds, delivery ownership, and a ...

Hybrid Ready Low Latency Electronic Trading Engineer

Citi is looking for a Software Engineer to join its Equities Electronic-Execution team in Greater London. You will design, develop, and maintain low-latency execution platforms, collaborating closely with traders and various teams to deliver innovative solutions. Strong expertise in low latency Java, C++, or Rus ...

Senior Platform Engineer – Trading & Analytics

Longshot Systems in Greater London is seeking a Senior Software Engineer to enhance our trading platform. The role requires experience in building distributed systems and proficiency in systems programming languages such as Go, C++, or Java. You will integrate trading venues, optimize performance, and define tec ...

Staff Software Engineer, Identity & Access Platform

P2P is looking for a Staff Software Engineer to shape identity across their portfolio of products in the UK. This role involves steering the technical direction of the authentication platform, leading the design of a unified identity experience, and building secure platform services on Kubernetes. Required quali ...

Backend Engineer Scalable Payments & Microservices

Wise is looking for a Backend Software Engineer to help build a new network for the world’s money. You will design and maintain scalable services, optimise relational databases, and collaborate with teams globally to enhance the payment platform. Ideal candidates will have strong experience with Java 8+ and the ...

Aeron‑Powered Front‑Office Capital Markets Engineer

Adaptive Financial Consulting Ltd is seeking a Solution Engineer in London. The role focuses on designing and delivering front-office technology solutions to clients in capital markets. Responsibilities include building strong relationships, ensuring technical excellence, and leading adherence to software proces ...

Staff Software Engineer Scale Platform (Fintech)

Airwallex in Greater London is looking for a Senior Software Engineer with over 8 years of experience in Java/Spring Boot. The role involves making critical architectural decisions for a multi-tenant infrastructure, designing technical solutions for enterprise clients, and collaborating cross-functionally. Candi ...

Senior Automation Engineer Agile QA in CI/CD (Hybrid)

Arrows is seeking a Senior Automation Engineer in Greater London to join a technology-driven organization in a hybrid capacity. The role involves collaboration with cross-functional teams to define acceptance criteria, implement functional validation, and ensure high-quality software delivery within the CI/CD pi ...

Senior Java Architect – Scalable Payments & Microservices

Wise in Greater London is looking for a Senior Software Engineer II to drive architecture and scalability within its global payment network. The role requires deep expertise in Java and Spring Boot, focusing on highly scalable services aligned with Wise’s microservices architecture. Responsibilities include lead ...

Senior Backend Engineer, Audiobooks Platform (Remote)

Deepstreamtech is seeking a Senior Backend Engineer in Greater London to join their Audiobooks Pipeline team. This role involves building and scaling backend systems for audiobook ingestion and delivery, and requires at least 5 years of experience in software engineering, proficiency in Java, gRPC, and GCP. The ...

Staff Software Engineer, Identity & Access Platform

Ripple is looking for a Staff Software Engineer in Greater London to drive the technical direction of its Authentication and Authorization platform. The role includes leading the design of a unified identity experience, building services on Kubernetes, and collaborating with various teams. Ideal candidates will ...

Senior Lead Backend Engineer – Services (Hybrid, London)

Capital One (Europe) plc is seeking a Senior Software Development Engineer in London, UK. This role involves leading a backend team in delivering complex projects and requires proven technical leadership and exceptional programming skills in modern OO languages, preferably Java. The position offers a hybrid work ...

Senior Backend Engineer – Platform & Permissions

Deepstreamtech is hiring a Senior Software Engineer in Greater London to join the EO team. This role focuses on backend engineering for core platform capabilities that support the Personio product, requiring strong problem-solving skills and a collaborative mindset. Candidates should be comfortable contributing ...

Senior Endpoint DLP Engineer (Kernel/Go/C)

A leading cybersecurity firm based in London is seeking a Senior Software Engineer to develop and enhance the FortiDLP endpoint agent. The role involves implementing new features, maintaining current functionality, and ensuring high coding standards. Candidates should have strong programming skills in languages ...

Senior Android Engineer Digital Identity & Fintech Impact

A leading global financial services firm is seeking a Software Engineer III - Android to join their dynamic team in London. This role involves developing customer-centric products, collaborating with cross-functional teams, and ensuring high code quality. Ideal candidates will have a Bachelor's degree in Compute ...

Principal Platform Engineer Cloud Native & Reliability

A leading fintech scaleup based in City Of London is looking for a Principal Software Engineer to provide technical leadership while remaining hands-on in a platform team. This role involves architecting multi-region infrastructure services and establishing best practices. The ideal candidate will have strong ba ...

Junior Java Engineer – High Performance FX Trading (Hybrid, London)

A leading financial technology firm in London is seeking a driven Junior Software Engineer with 1-2 years of experience in Core Java development. This role offers a hybrid work model and an opportunity to learn from top engineers, enhancing your financial knowledge and career. The position includes excellent ben ...

Senior Full Stack Engineer, Secured Access Platform

A leading tech firm in Greater London seeks a Senior Software Engineer to join the secured access engineering team. The role involves designing user-facing web security solutions and working with various stakeholders. Candidates should have at least 6 years of backend development experience and be proficient in ...

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