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Senior Software Engineer Ad Tech & AI Platforms

A leading media business in Greater London seeks a Senior Engineer to develop and maintain key advertising products. You will lead design efforts and ensure system reliability at scale, working collaboratively with cross-functional teams. The ideal candidate has over 8 years of software engineering experience, a ...

Senior Software Engineer Live Trading Platform (Hybrid)

A specialist tech consultancy is seeking a Senior Software Engineer to join their team in Greater London. This senior-level role involves designing and delivering a live trading platform with a focus on both frontend and backend development, primarily using React and TypeScript. You will influence system design ...

Senior Software Engineer Kotlin & Scalable API Platform

A leading algorithmic insurance provider in Greater London is seeking a Senior Software Engineer to enhance their broker platform. You will develop robust software solutions, work with multi-disciplinary teams, and uphold engineering principles within an agile framework. Ideal candidates will have experience in ...

Senior Software Engineer, Real Time Market Making

A leading gaming company is seeking a Senior Software Engineer for its Market Making Technology team. The role involves developing solutions in a fast-paced environment, collaborating with stakeholders, and ensuring robust market-making capabilities. Candidates should have a degree in a related field and several ...

Senior Software Engineer Build Secure, Impactful Systems

A UK security agency seeks a Senior Software Engineer to tackle mission-critical challenges. The role involves contributing to software design and architecture while promoting best practices in a supportive environment. You will engage with diverse stakeholders, providing both technical leadership and mentorship ...

Senior Software Engineer — High Impact IC, Remote

A leading eCommerce automation company in the UK seeks a Senior Software Engineer to tackle complex challenges and mentor junior engineers. The role focuses on delivering high-quality solutions while adhering to technical standards. Key responsibilities include design implementation, technical leadership, and co ...

Senior Software Engineer Transit Tech & Scalable Systems

A global leader in public transit solutions is looking for a Senior Software Engineer in Manchester to drive innovation in public transportation technology. The successful candidate will have at least 5 years of experience in software development, specializing in C++ and Java, along with cloud platform expertise ...

Senior Software Engineer AI Driven Event Platform

A technology company is seeking a Senior Software Engineer to work on an AI-powered event platform. You will be responsible for delivering features using modern software practices and mentoring team members. The ideal candidate should have significant experience with production-grade software and AI, along with ...

Senior Embedded Software Engineer Hybrid UI/OS

A leading streaming company in the United Kingdom is seeking a Senior Software Engineer, Embedded to contribute to embedded UI development and algorithm implementation. The ideal candidate will have strong C++ experience, knowledge in UI frameworks, and relevant skills in embedded systems. This role offers visib ...

Senior AI Software Engineer (Generative AI) – FinTech

A fintech company based in the UK is looking for a Senior Software Engineer to join their Generative AI team. The role involves developing AI-driven solutions to enhance customer support and internal processes. Candidates should have over 5 years of backend software development experience, particularly with AI a ...

Senior Software Engineer Build Secure, Impactful Systems

The UK Intelligence Agency is seeking a Senior Software Engineer to solve mission-critical challenges and contribute to the design of systems. This role emphasizes collaboration and innovation in a diverse team environment, requiring expertise in software engineering and methodologies such as Agile. The position ...

Senior Software Engineer Conversational AI in Healthcare

A healthcare technology company in Birmingham is looking for a Senior Software Engineer to enhance their innovative conversational agent platform. The role involves designing and implementing scalable solutions, collaborating with cross-functional teams, and mentoring junior engineers. The ideal candidate has ov ...

Senior Software Engineer Build Secure, Impactful Systems

An intelligence agency in Manchester is seeking a Senior Software Engineer to address mission-critical challenges. You will contribute to system architecture, deliver quality software solutions, and engage with various stakeholders. The position offers a flexible working environment, supporting professional grow ...

Senior Software Engineer, Risk Platform — Quantitative Tech

A prominent trading firm in London is seeking a Senior Software Engineer to enhance their Risk Technology team. This role involves designing and maintaining applications that calculate portfolio sensitivities and value-at-risk across multiple asset classes. The ideal candidate will have strong programming skills ...

Senior Software Engineer – Shape Mission Critical Systems

A leading defense technology firm in Greater London seeks a Senior Software Engineer to develop and maintain critical software solutions. You will work on diverse projects, influencing architectural decisions and engaging in hands-on coding. The ideal candidate will have experience in backend and frontend develo ...

Senior Software Engineer Public APIs & Expense Platform

A global technology firm in Greater London is seeking a Senior Software Engineer to enhance their Business Expense Management team. You'll design and maintain scalable services while producing public-facing APIs. Ideal candidates will be proficient in Java, familiar with microservices, and possess strong communi ...

Senior Software Engineer London, England, United Kingdom

This London‑based role sits at the core of Verifone’s payments and checkout platform, where backend engineering directly impacts secure, high‑volume transactions used globally. You’ll design and operate scalable, production‑critical systems that must perform reliably under real‑world load, evolving payment ...

Senior Software Engineer Enterprise Products Data Acquisition

Senior Software Engineer - Enterprise Products Data Acquisition Location London Business Area Engineering and CTO Ref # Description & Requirements The Enterprise Product Platform (EPP) builds the technology foundation that unifies workflows, dat ...

Senior Systems Engineer Remote IT & Software Integration

Leidos is seeking a Senior Systems Engineer in the United Kingdom to maintain the Requirements Verification Traceability Matrix and support system integration. The candidates must have at least 3 years of experience in Systems Engineering and be familiar with methodologies like Agile and Waterfall. Responsibilit ...

Senior Systems Engineer Remote IT & Software Integration

Leidos is seeking a Senior Systems Engineer in the United Kingdom to maintain the Requirements Verification Traceability Matrix and support system integration. The candidates must have at least 3 years of experience in Systems Engineering and be familiar with methodologies like Agile and Waterfall. Responsibilit ...

Senior Systems Engineer Remote IT & Software Integration

Leidos is seeking a Senior Systems Engineer in the United Kingdom to maintain the Requirements Verification Traceability Matrix and support system integration. The candidates must have at least 3 years of experience in Systems Engineering and be familiar with methodologies like Agile and Waterfall. Responsibilit ...

Senior Software Engineer — Education Data Platform (Hybrid)

The National Institute of Teaching is seeking a Senior Software Engineer to join the Teacher Education Dataset team. This role involves developing and maintaining the technical infrastructure that supports educational data analysis. The position requires strong coding skills, experience in software engineering, ...

Senior Software Engineer – Backend & Platform (Rust/Cloud)

A leading software company in the UK seeks a Software Engineer to join its Platform Engineering team. You will streamline delivery of SaaS product offerings, champion best practices, and mentor junior engineers. This role offers the chance to work with a range of technologies, emphasizing problem-solving. A stro ...

Senior Software Engineer, Core Experiences (Kotlin MP)

Speechify is seeking a Senior Software Engineer for its Core Experiences Team in Brighton, UK. The role involves collaborating with product teams to enhance product functionality and designing efficient systems using Kotlin. Candidates should excel in systems thinking, collaboration, and have experience in high- ...

Underwater Robotics Software Engineer — Real‑Time & Backend

Advanced Resource Managers Ltd is seeking a talented software developer to join their underwater robotics team in Fareham, England. In this critical role, you will design and implement software solutions for advanced subsea vehicles, leveraging your strong expertise in C++. You will be responsible for enhancing ...

Senior Software Engineer — Edge AI & Hardware Systems

YT Technologies is seeking a Senior Software Engineer based in Malvern, UK, to take technical ownership of a critical product codebase. This role requires expertise in Python and C++, with 5+ years in product development. The engineer will lead software architecture across Windows and Linux, manage complex syste ...

Hands On Product Engineer Mechanical, Electronics & Software

Rubicon Recruitment is seeking a Product Engineer in Crawley, England, offering a competitive salary of up to £45,000. This role involves designing mechanical assemblies and contributing to electronics solutions while collaborating with the engineering team. Candidates should possess strong CAD skills, electroni ...

Senior Software Engineer, Core Experiences SDKs & APIs

Speechify is seeking a Senior Software Engineer to join our Core Experiences Team in Edinburgh. This vital role involves collaborating with product teams, optimizing functionality, and shipping cloud functions using Kotlin. The ideal candidate demonstrates strong systems thinking, agility in project execution, a ...

Senior Software Engineer — Real Time Robotics (Embedded)

Tritanium Space, Defence & Technology Ltd. is seeking a Senior Software Engineer based in Southampton. This role involves developing real-time control systems, collaborating with engineering teams, and contributing to robotic operations and mission-critical technology. The ideal candidate holds a degree in Compu ...

Senior Software Engineer: Remote First Backend & Frontend

Tripadvisor is seeking a Senior Software Engineer in Oxford to join a dynamic team. This full-stack position focuses on backend development while offering the opportunity to work on front-end projects. You will collaborate closely with product managers and designers and will be part of a rapid release cycle, wit ...

Lead Automation Software Engineer for Bespoke Machinery

Mpac Group in Tadcaster is seeking a Senior Software Engineer to lead automation software delivery for bespoke machinery projects. Responsibilities include developing Software Design Specifications, leading commissioning activities, and mentoring junior engineers. The ideal candidate should have advanced experie ...

Senior Software Engineer, Unified Platform (Reference Data)

Overview DRW is a technology-driven, diversified principal trading firm. We trade our own capital at our own risk, across a broad range of asset classes, instruments and strategies, in financial markets around the world. As the markets have evolved over the past 30 years, so has DRW – maxi ...

Lead Software Engineer, Core Tech (C++ & Tools)

Sports Interactive Limited in London is looking for a Lead Software Engineer for their Core Tech team. The ideal candidate will have extensive experience in modern C++ and lead the design and implementation of scalable shared libraries. Responsibilities include managing engineers, providing technical leadership, ...

Senior Embedded Software Engineer in Eastleigh Staffline

Senior Embedded Software Engineer Location: Eastleigh, United Kingdom Posted 9 months ago Tech Stack Python SQLite C JavaScript Node.js Responsibilities & Qualifications Bachelor’s degree in en ...

Senior Software Engineer QuantumBlack, AI by McKinsey

Who You’ll Work With Driving lasting impact and building long-term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture – doing hard things, picking yourself up when you stumble, and having the resilience to try another w ...

Senior Software Engineer I (iOS) London, UK

Our vision is to give everyone the belief they can make their move. We aim to make moving simpler, by giving everyone the best place to turn to and return to for access to the tools, expertise, trust, and belief to make it happen. We’re home to the UK’s largest choice of properties and are the go‑t ...

Senior Software Engineer – Hybrid, Global Finance Impact

Citi in Belfast is seeking a Senior Software Engineer to work in a dynamic technology team focused on building software solutions for complex business challenges. You will engage in all facets of software development while collaborating closely with product teams. A bachelor's degree in computer science or engin ...

Senior Software Engineer – Loyalty Platform (Scale & Impact)

Marks & Spencer Plc is seeking a Senior Software Engineer to join their Loyalty team in the City of Westminster, UK. The role involves building and maintaining robust Loyalty platform services that support customer journeys. Candidates should possess experience in distributed systems, DevOps, and familiarity wit ...

London based Senior Software Engineer – FinTech Platform

Barclays seeks a Senior Software Engineer in London to design and build scalable C# (.NET/.NET Core) and Python calculation engines. The role involves developing data models in SQL Server, delivering low-latency REST APIs, and collaborating with stakeholders for accurate billing outputs. Ideal candidates will ha ...

Senior Software Engineer – RGS Platform Lead (Hybrid)

Light & Wonder - iGaming is looking for a Senior Software Engineer in Chiswick, UK, to lead the technical internalisation of their Remote Gaming Server. The ideal candidate will have strong experience in Python and SQL, and will take ownership of the codebase, collaborating with product and DevOps teams to ensur ...

Senior Software Engineer AI Powered Fintech (Hybrid)

Signify Technology is seeking a high-impact individual contributor for a fintech client in Central London. The successful candidate will deliver high-quality code across the full stack, utilize AI and automation to streamline workflows, and provide technical leadership on complex challenges. Experience with AWS, ...

Senior Software Engineer – Full Stack & Scalable Systems

GOOGLE is looking for a Software Engineer in Greater London to develop next-generation technologies that impact billions of users. You'll participate in design reviews, review code for best practices, and work on full-stack development using languages like Java, Python, and JavaScript. A Bachelor’s degree or equ ...

Software Engineer III, Full Stack, Global Business

Minimum qualifications Bachelor’s degree or equivalent practical experience. 2 years of experience with software development in one or more programming languages, or 1 year of experience with an advanced degree. 2 years of experience with full stack development, across b ...

Senior Software Engineer — High Throughput Java & Cloud

Hong Kong Exchanges and Clearing Limited (HKEX) is looking for a Vice President in London to engineer and enhance their Inter-Office Trading platform. The role demands proficiency in Java, experience with cloud infrastructures, and strong skills in distributed systems and data streaming. Applicants should have o ...

Senior Lead Software Engineer Cloud & API Architecture

Job Description Are you ready to shape the future of technology at a leading global financial institution? Join us and use your expertise to drive impactful solutions that power our business and support our clients worldwide. Here, you'll collaborate with talented professionals, grow your skills, ...

Software Engineer Up to £400k + Bonus London

Job title: Software Engineer (C++/Python) Client: Performance Software Scale Up Salary: up to GBP 400,000 per annum + Bonus (DOE) Location: London - United Kingdom The role My client are seeking a talented engineer to join their existing team of elite software engi ...

AI Software Engineer — Cloud, DevOps & Secure Coding

Barclays is looking for an AI Software Engineer to design, develop, and improve software that enhances business capabilities. This role involves proficiency in advanced programming, system design, and collaborative problem-solving, along with skills in cloud platforms and DevOps. The successful candidate will wo ...

Windows Software Engineer Medical Device (C#, .NET)

Metric Bio in Oxford is seeking a Windows Software Engineer to join their engineering team. This role involves designing and developing software for Class II/III medical devices, focusing on secure connectivity and compliance with regulatory standards. The ideal candidate has expert-level skills in C# and modern ...

Principal Software Engineer SC Eligible | Lead Architect

Appvia Ltd. is seeking a Principal Software Engineer with UK Security Clearance eligibility to lead software engineering efforts. This role involves hands-on technical leadership, shaping architecture, and mentoring engineers. The ideal candidate possesses strong experience in Domain Driven Design, microservice ...

End to End Software Engineer AI & Integrations

Traveltechessentialist is hiring a Software Engineer in Birmingham, UK, to own features from design to deployment. Key responsibilities include building tools for travel booking, developing payment systems, and automating expenses. Candidates should have strong CS fundamentals and a product mindset for iterative ...

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    Software Engineer Reactpythonc Jobs in United Kingdom Job Search Guide, Trends and Insights