Lead Software Engineer Python Java Jobs in London, UK

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Lead FX UI Engineer – Front Office Platform, London

Stanford Black Limited is seeking an experienced UI engineer to take ownership of its electronic FX platform in London. You will collaborate with front-office stakeholders to re-engineer the single dealer platform, expand into new asset classes, and add sophisticated features. Ideal candidates will have over 10 ...

Lead ML Engineer — Production ML & MLOps (Hybrid London)

Harnham is seeking a Senior Machine Learning Engineer in London to take ownership of end-to-end machine learning delivery. The ideal candidate will play a key role in designing, building, and productionising machine learning solutions across various use cases while collaborating with data scientists and engineer ...

Senior Platform Engineer: Cloud, CI/CD & SRE Lead

Definely is looking for a Senior Platform Engineer to enhance their product infrastructure and tooling. In this pivotal role, you will manage operational performance and optimize CI/CD systems, ensuring deployment safety and a seamless developer experience. Ideal candidates will have strong AWS and DevOps experi ...

Senior Platform Engineer: Cloud, Kubernetes & CI/CD Lead

Ocean Infinity is seeking a Senior Platform Engineer to enhance core platform systems and infrastructure with a focus on Kubernetes, cloud engineering, and CI/CD pipelines. The ideal candidate should have a degree in Computer Science or related field and over 5 years of experience in related roles, having hands- ...

FX Pricing Engineer — Low Latency Architect & Team Lead

Citi seeks a hands-on engineering leader in Greater London to manage a high-quality team focused on ultra low-latency solutions in FX Technology. The candidate should possess a strong systems background and proven experience in building and renovating systems. Responsibilities encompass team development, system ...

Senior Electrical Design Engineer: Lead MEP & Net Zero

Pertemps Network Group is seeking a Senior Electrical Design Engineer to join a growing team committed to sustainability. This hybrid role involves leading electrical design projects, mentoring junior engineers, and collaborating on complex developments. The ideal candidate will have a degree in Electrical Engin ...

Senior Cloud Security Engineer AWS & Incident Response Lead

Reapit is looking for a Senior Cloud Security Engineer in Greater London to strengthen its cloud security posture. You will design and enhance secure Cloud infrastructure, conduct security assessments, and engage in incident response activities. Candidates should have a minimum of 5 years of experience in AWS en ...

Senior EC&I Engineer Lead Technical Decisions (Hybrid)

Energy Jobline ZR is seeking a Senior EC&I Engineer to lead projects with a focus on complex, safety-critical environments in the North West. This hybrid contract offers flexibility, long-term programme stability, and the chance to influence technical standards and decisions. Candidates should have a strong back ...

Lead Application Security Engineer—Secure by Design & DevOps

Motability Operations Ltd is looking for a Security Engineering Team Lead in Greater London. This role requires a blend of leadership and hands-on technical security expertise. The successful candidate will be responsible for embedding application security within engineering practices, overseeing a small team an ...

Lead Cross Platform Mobile Engineer — Shape AI Productivity

Iamwarpspeed is seeking a passionate Lead Cross-Platform Mobile Developer to lead the development of their mobile applications. This pivotal role ensures a seamless and native user experience across iOS and Android platforms. Candidates should have 5+ years of experience in cross-platform mobile development, pre ...

Lead Full Stack Engineer: .NET & Azure API Architect

Avanade is looking for a visionary Full Stack Developer in Greater London. You'll lead transformative development by crafting innovative solutions using .NET and Azure, bridging the technology-business divide. This role involves analyzing, designing, and maintaining application code across diverse contexts, with ...

Lead Optical Communications Engineer — AI Data Center Links

Olix Computing is seeking an Optical Communications Engineer to lead the design and optimisation of high-speed optical links for AI data centers. You will define architectures and collaborate on electro-optic co-design while developing simulation frameworks. With a PhD or Master’s in a relevant field and extensi ...

Lead Frontend Engineer: Real Time AI Canvas & 3D

Gendo is seeking a Senior/Lead Frontend Engineer in Greater London. You’ll take ownership of our real-time collaborative canvas application built on React (Next.js) and WebGL, serving the architecture sector. This full-time hybrid role offers meaningful equity, stock options, and a wealth of benefits, ...

Lead P&C Engineer Substation Protection & Control (UK)

Egis Group is seeking a Principal Engineer (P&C) to oversee and approve Protection and Control design submissions for National Grid and DNO projects. This role involves collaboration with contractors, internal engineering teams, and ensuring compliance with safety and regulatory standards. Candidates s ...

Senior Infra & Cloud Engineer — Azure, SQL & VMware Lead

Rimes Technologies is seeking a Senior Infrastructure & Cloud Engineer in Greater London to lead infrastructure and cloud projects. You will manage SQL environments, promote architectural best practices, and support both on-premise and cloud platforms like Microsoft Azure. The role offers competitive pay, flexib ...

Senior Cyber Security Engineer: SOC Lead & Threat Hunting

Energy Jobline ZR in Greater London is seeking a Senior Cyber Security Engineer to enhance their SOC capabilities. The ideal candidate will have over 5 years of experience in cybersecurity and strong expertise in CrowdStrike and Splunk. Responsibilities include leading deployment of security tools, incident resp ...

Senior ML Engineer & Tech Lead — Scalable ML Systems

Loop Recruitment is looking for Senior and Lead Machine Learning Engineers to join a dynamic AI consultancy in central London. The role offers a competitive salary of up to £130K and a hybrid working environment. Ideal candidates will have deep expertise in machine learning, a solid Python background, and experi ...

iOS Mobile Engineer On Device ML & SDK Lead

Neurolabs is looking for a Mobile Developer (iOS) to own the full mobile layer, from SDK integrations to app deployment. You will lead mobile app integrations, maintain the camera SDK, and deploy on-device ML models for real-time processing. The ideal candidate has experience in mobile development, with a strong ...

Senior/Lead DevEx Engineer: Golden Path & CI/CD

On is seeking a Senior Software Engineer to join its Developer Experience team in Greater London. In this role, you will design and implement CI/CD pipelines, contribute to the Apollo GraphQL API Gateway, and enhance the internal developer platform with self-service tools. The ideal candidate should ha ...

Senior Fire Engineer – Lead, Client Side Rail Safety

Energy Jobline CVL is seeking a Principal Fire Engineer for a pivotal role in High Speed Two (HS2), located in London or Birmingham, with up to £83,500 salary. The position offers a hybrid working environment with a blend of ownership and influence over fire safety across one of Europe's largest infrastructur ...

Principal HV Cable Systems Engineer — Design & Delivery Lead

AECO is seeking a Technical Leader for HV/EHV cable system projects in Greater London. You will lead project delivery, ensuring quality and safety while overseeing complex system designs and coordinating multidisciplinary teams. The ideal candidate has a proven track record in cable system design, exce ...

Client Facing AI Engineer: Lead Agentic AI Solutions

Huxley, a trading division of SThree Partnership LLP, is seeking a Forward AI Engineer. This role involves leading client engagements end-to-end, scoping requirements, and driving technical teams to deliver AI solutions. Strong AI literacy and near-native French are essential. The ideal candidate will ...

Lead Civil Engineer – Water Management & Resources (Mine Water)

Knight Piésold UK is hiring!We are seeking an accomplished Lead Civil Engineer with 15+ years of experience to head our Water Management & Resources team in London. This is a senior-level opportunity to lead a dynamic group of engineers, shape project delivery, and contribute strategically to the g ...

Lead Civil Engineer – Water Management & Resources (Mine Water)

Knight Piésold UK is hiring!We are seeking an accomplished Lead Civil Engineer with 15+ years of experience to head our Water Management & Resources team in London. This is a senior-level opportunity to lead a dynamic group of engineers, shape project delivery, and contribute strategically to the g ...

Lead Android developer

Global – Look for a Lead Android Developer – London – Hybrid – Freelancer – 3 months + RED Global is looking for a Lead Android developer in London, Freelancer – 3 months + Experience 6 + years Contract Type Freelance - Full-time (on-site at client location) ...

AWS DevOps Engineer Associate Manager

Job Title and Level AWS DevOps Engineer – Associate Manager Locations London, Manchester, Bristol, Birmingham Responsibilities Design, implement, and maintain CI/CD pipelines. Automate infrastructure provisioning and configuration management. ...

Senior Data Consultant

We are seeking a Senior Data & Analytics Consultant with 12+ years of experience across Data Strategy, Analytics, Visualization, and Data Engineering . The role involves leading enterprise‑scale analytics programs, managing Reporting as a Service , driving cloud data migrat ...

Senior Software Engineers/Development Team Lead/Tech Leads (x5 roles) – C#, .NET, Fullstack, Az[...]

About the Opportunity We are hiring five exceptional Senior Software Engineers / Development Team Leads / Tech Leads for one of the UK’s fastest‑scaling, best‑funded and most forward‑thinking software scale‑ups . This company builds an advanced AI‑powered platform used by some of t ...

Design Assurance Lead (Software/SaMD)(we have office locations in Cambridge, Leeds and London)

Genomics England is a global leader in enabling genomic medicine and research, focused on creating a world where everyone benefits from genomic healthcare. Building on the 100,000 Genomes Project, we support the NHS’s world-first national whole genome sequencing service and run the growing National Genomic ...

Design Assurance Lead (Software/SaMD)(we have office locations in Cambridge, Leeds and London)

Job DescriptionWe are seeking a Design Assurance Lead, to drive excellence in software quality assurance at Genomics England, shaping organisational practice and supporting the delivery of an enhanced software development lifecycle aligned with future UK Medical Device Regulations.Eve ...

Design Assurance Lead (Software/SaMD)(we have office locations in Cambridge, Leeds and London)

Job DescriptionWe are seeking a Design Assurance Lead, to drive excellence in software quality assurance at Genomics England, shaping organisational practice and supporting the delivery of an enhanced software development lifecycle aligned with future UK Medical Device Regulations.Eve ...

Senior Python Quantitative Developer Central Risk & Backtesting Platform Quant Hedge Fund

Senior Python Quantitative Developer sought by a specialist and multi-award-winning Systematic Hedge Fund in a brand-new Core team designing and implementing a greenfield centralised Python/SQL/Linux/Docker platform for Backtesting, Pricing, Risk and Performance to be used across all Funds and Investment team ...

Network Security Engineer

A leading financial technology and data science firm requires a Senior Network Security Engineer to design, deploy and operate high-performance network security solutions in support of (but not limited to) financial trading infrastructure. The Network Security Engineer is responsible for securing the n ...

Machine Learning Engineering Intern

Snap Inc is a technology company focused on camera technology and augmented reality. The Spectacles team is pushing the boundaries of technology to bring people closer together in the real world. Our fifth‑generation Spectacles, powered by Snap OS, showcase how standalone, see‑through AR glasses ma ...

Senior Sustainable Quantitative Developer

Role profile We are seeking a knowledgeable Quantitative Developer to join the Sustainable Index Research and Design team at FTSE Russell, a wholly owned subsidiary of the London Stock Exchange Group. The role reports directly to the Head of Sustainable Index Research and Design. The Sustainable ...

Quantitative Developer C++ Infrastructure for Quant Analytics

Quantitative Developer - C++ Infrastructure for Quant Analytics Location London Business Area Product Ref # Description & Requirements The Quant Analytics department at Bloomberg sits within Enterprise Products and is responsible for modeling market data, pr ...

Senior Sustainable Quantitative Developer

Role profile: We are seeking a knowledgeable Quantitative Developer to join the Sustainable Index Research and Design team at FTSE Russell, a wholly owned subsidiary of the London Stock Exchange Group. The role reports directly to the Head of Sustainable Index Research and Design. The Sustainable ...

Sports Betting Trading Analyst

Overview At Longshot Systems we build advanced platforms for sports betting analytics and trading. We're looking for a Sports Betting Trading Analyst to join our modelling team where you will be one of our sports & betting market experts. You would be joining a small team and working closely alon ...

Product Engineer

Join to apply for the Product Engineer role at Tab 3 days ago Be among the first 25 applicants Join to apply for the Product Engineer role at Tab This range is provided by Tab. Your actual pay will be based on your sk ...

Camunda Lead Full Stack Developer London, UK Full time Hybrid

Camunda Lead Full Stack Developer Location: London, UK About the Job you are considering: We are seeking experienced Camunda Lead Full Stack Developer with strong expertise in banking domain who will oversee the planning, execution, and successful delivery of projects. < ...

Senior Mechanical Engineer Tech Services & On Site Lead

Metropolitan Services is looking for a Mechanical Senior Engineer to support the Technical Services department. This permanent role will be based between the Greenwich and Canary Wharf offices and involves client liaison, technical support, and compliance monitoring during construction.The position off ...

Water Civil Engineer to Senior Principal – Lead & Innovate

A global engineering consulting firm in Greater London is seeking Civil Engineers from Civil to Senior Principal levels. The role involves delivering innovative projects in the water sector, collaborating with industry professionals, and contributing to a culture that values inclusivity and development. Ideal ca ...

Senior/Lead Engineer (React & TypeScript) in London Onroute

Senior/Lead Engineer (React & TypeScript)London, United Kingdom.We are seeking a highly skilled Senior/Lead Engineer with deep expertise in React (Next.js), React Native, and TypeScript to join our team full‑time. In this role, you will take ownership of our cross‑platform mobile ...

Senior Mechanical Engineer — Net Zero Building Design Lead

A global engineering consultancy in Greater London seeks a Senior Mechanical Engineer to lead design and coordination of mechanical systems for diverse projects. The role involves collaboration with multidisciplinary teams, managing project timelines, and providing mentorship to junior engineers. Candidates shou ...

Principal Civil Engineer Lead Iconic Urban Projects (Hybrid)

A leading engineering firm in the United Kingdom is seeking an experienced Principal Civil Engineer for their Design & Advanced Technology team. You’ll play a crucial role in delivering innovative solutions for major land development projects. This position offers a hybrid work model and a chance to work on key ...

Senior Process Engineer PFDs, P&IDs & HAZOP Lead

A pioneering company in sustainable wood products is seeking a Chemical Engineer to ensure safety compliance and translate business needs into effective designs. The ideal candidate will have a Master’s or Bachelor's degree in chemical engineering and at least 5 years of relevant experience. Strong communication ...

Senior Full Chip Physical Design Engineer | Lead & Mentor

An advanced semiconductor firm in Greater London is seeking a Physical Design Engineer to oversee the physical implementation process of complex SoCs. The ideal candidate will have over 10 years of experience, proven leadership skills, and a strong background in physical design tools. Responsibilities include me ...

Senior Fire Engineer & Technical Lead for Complex Projects

A leading engineering consultancy in the UK seeks a Principal Fire Engineer to lead fire strategy projects, mentor junior engineers, and work across various sectors including healthcare and education. The ideal candidate will have extensive fire engineering experience, strong communication skills, and a relevant ...

Lead Public Health Engineer – Net Zero Building Systems

A leading engineering consultancy in Greater London seeks a Senior Public Health Engineer to design and manage public health systems for diverse building projects. The role involves collaboration with multidisciplinary teams, ensuring compliance with regulations while mentoring junior engineers. Candidates must ...

Senior Fire Engineer — Multi Sector Design & Safety Lead

A leading engineering consultancy in the UK is seeking a Senior Fire Engineer to manage engineering projects and develop fire safety solutions. The ideal candidate will hold an engineering degree and have a proven record of delivering fire safety projects. Responsibilities include assessing fire-related risks, e ...

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