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Senior Software Engineer – Execution & Order Management Systems

Senior Software Engineer | ~£950/day Outside IR35 | 6-months initial contract | London Industry: Trading Location: London – 4 days in office Job Type: Contract – 6-month initial Our client is building the next generation of execution and ord ...

Senior Software Engineer FinTech Trading Systems (London)

SoCode Limited is seeking a Contract Senior Software Engineer (Java or Python) in London for a 6-month role with potential extension. You will develop and support P&L, accounting, and returns-calculation applications while collaborating with financial professionals. Ideal candidates will have 8+ years of experie ...

Senior Software Engineer (Hybrid) Azure/.NET & React

NewOrbit Ltd in Oxford is seeking Mid or Senior Level Software Engineers to join their developer-centric team. Candidates should have full-stack experience with C#, TypeScript, and SQL. The role offers hybrid work options alongside a competitive salary of £45K-65K. Benefits include 25 days holiday, pri ...

Contract Senior Software Engineer (Java or Python)

Contract Senior Software Engineer (Java or Python) Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer, to work across the following responsib ...

Senior / Principal Software Engineer, Rust in London

Work to revolutionise flight operations with modern tech. London hybrid / mostly remote; to £100,000 DoE plus benefits. This growing team of experts in flight and aviation are building a new platform and seeking senior engineers to join them. With challenging problems to solve, the role com ...

Senior Software Engineer — Lead Architect & Mentorship (Hybrid)

UK Intelligence Services is looking for a Senior Software Engineer in Cheltenham to design and develop mission-critical solutions. The ideal candidate will work with technologies like Java, Python, and Go while collaborating with cloud platforms such as AWS and Azure. The role offers robust support for ...

Senior Lead Software Engineering AI/ML Engineer

Join us to shape the future of AI/ML data platforms, where your expertise will help create resilient and market-leading solutions. You will have the opportunity to collaborate with innovators across our global network, driving strategic change and mentoring others. We value your skills in solving complex c ...

Senior Software Engineer (Linux, React, IaC, Observability)

Key Skills: Familiarity with Linux, including Bash scripting and basic system administration Familiarity with Javascript development and at least one Javascript framework Experience writing web backend Proficiency using and developing containers for development ...

Senior Software Engineer – Hybrid Cloud, AI & IoT

Applause IT Recruitment Ltd is looking for a Senior Software Engineer to join their engineering team in Birmingham. This hybrid role offers a great opportunity to work on cloud-native systems, IoT integrations, and AI-powered applications. The ideal candidate will have strong AWS and backend engineerin ...

Senior Software Engineer Mission Critical UK Clearance

Northrop Grumman Corp. (AU) in Cheltenham is seeking a Senior Software Engineer to drive innovation and develop vital software solutions. This opportunity emphasizes teamwork and solving complex challenges while influencing architectural decisions. Your role includes hands-on coding and Agile project s ...

Senior Software Engineer — Hybrid, UK Security Cleared

Northrop Grumman Corp. (AU) is seeking a Senior Software Engineer to design and maintain critical software solutions. You will work on diverse projects, delivering hands-on development and contributing to the codebase while collaborating with talented engineers. This role requires experience in backend ...

Senior Software Engineer Full‑Stack, Performance‑First

Europython is looking for a Senior developer to work in London, Barcelona, Edinburgh and Berlin. The ideal candidate will have a strong pragmatism and obsession for simplicity, efficiency, and performance, along with extensive experience in building technically complex products in any web programming language ...

AI Native Senior Software Engineer (Hybrid London)

Axon in London is seeking an experienced software developer to lead the creation of groundbreaking AI-driven products. The ideal candidate will have over 7 years of software development experience, strong AI-native delivery capabilities, and the ability to work effectively in a hybrid environment. This ...

Senior Software Engineer: Architecture, Mentoring & AI (SaaS)

VIQU IT is looking for a Senior Software Engineer based in Milton Keynes. The role involves building web interfaces, mentoring junior engineers, and working with product teams to ensure timely delivery of high-quality solutions. The successful candidate should have experience with C#, Node.js, React, a ...

Senior Software Engineer Core Video & Data (Remote)

Hudl is looking for a Senior Software Engineer to join the Core Data team in London. This role involves designing APIs and large-scale data pipelines to support various Hudl products. The ideal candidate will have extensive experience in full-stack engineering, particularly with cloud-based systems, and a col ...

Senior Software Engineer Full‑Stack, Performance‑First

Europython is looking for a Senior developer to work in London, Barcelona, Edinburgh and Berlin. The ideal candidate will have a strong pragmatism and obsession for simplicity, efficiency, and performance, along with extensive experience in building technically complex products in any web programming language ...

Senior Security Engineer: Build Secure, Scalable Software

J.P. MORGAN is looking for a Lead Security Engineer in Bournemouth, UK, to deliver secure software solutions within the Cybersecurity Technology Controls team. This role requires experience in security engineering, proficiency in Python, and the ability to work collaboratively with stakeholders. Applicants shoul ...

Senior Software Engineer — Cloud Native & AI Driven

A software solutions provider in Milton Keynes is seeking a Senior Engineer to lead cloud-native development and innovate within the team. The ideal candidate will manage code quality, mentor junior engineers, and work in a collaborative environment. Responsibilities include building web interfaces, driving arch ...

Senior Embedded Software Engineer for Instrument Platforms

A technology firm in the UK is seeking a Senior Embedded Software Engineer to lead the development of complex embedded systems. The ideal candidate will have experience with bare-metal firmware, RTOS, and embedded Linux. You'll work on both low-level hardware interaction and high-level application logic, collabo ...

Senior Embedded Software Engineer: ARM, RTOS, C

A leading UK-based manufacturer is seeking a Senior Embedded Software Engineer to join their Cambridge team. The role involves developing embedded software for industrial machines using ARM-based microcontrollers, particularly in Embedded C. Candidates should have experience with real-time operating systems and ...

Senior Lead Software Engineering AI/ML Engineer

Join us to shape the future of AI/ML data platforms, where your expertise will help create resilient and market‑leading solutions. You will have the opportunity to collaborate with innovators across our global network, driving strategic change and mentoring others. We value your skills in solving complex c ...

Senior Software Engineer — Azure Cloud, Ownership & Mentorship

Synchro is seeking a Senior Software Engineer in Birmingham, UK, offering a hybrid work model. This role involves designing and delivering scalable software solutions using .NET and Azure, with responsibilities ranging from owning features end-to-end to mentoring junior developers. The successful candidate will ...

Senior Systems Engineer IT/Software Integration Lead

Leidos is seeking a Senior Systems Engineer in Farnborough to manage system integration activities. The role requires a minimum of 3 years' experience in Systems Engineering for IT/software systems. Ideal candidates are familiar with frameworks like ICOSE and have strong analytical and communication skills. Pref ...

Senior Robotics Software Engineer – On‑Site Oxfordshire

Autodiscovery is looking for a full-time Senior Robotics Software Engineer in Oxfordshire. The successful candidate will design and develop software for innovative robotics systems, lead implementation, and mentor junior members. The role requires at least 2 years of experience in software development, proficien ...

Senior Software Engineer, Cloud Simulation (Hybrid/Remote)

Wayve is looking for a Software Engineer to join their Simulation Technology team in London. This full-time role involves evolving core components of the simulation platform and collaborating with robotics and research teams. Candidates should have extensive experience in Python, workflow orchestration systems, ...

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, ...

Senior Software Engineer, R&D Tax Tech

Joingelt is looking for a Senior Software Engineer in Nottingham, UK. As part of the R&D team, you will design and deploy tax automation services, ensuring accuracy in advanced tax models while working across the stack with a focus on backend systems. Candidates should have 5+ years' experience with Typescript, ...

Actemium Automation Hampshire Senior Software Controls Engineer

Senior Software Controls Engineer - PLC/SCADA Location: Waterlooville, Hampshire | Hours: Full-time (37.5 hrs) The Role Lead the design, development and commissioning of PLC/SCADA/HMI systems Produce FDS, technical documentation and control philosophies <li ...

Senior Embedded Software Engineer C++/Modern Tech

A technology firm in the UK seeks mid-level to experienced Embedded Software Engineers to develop innovative software systems. The role includes designing complex embedded systems, collaborating with cross-functional teams, and mentoring junior engineers. Required skills include C++ experience, familiarity with ...

Senior Research Software Engineer: Lead Research Solutions

The Society of Research Software Engineering, based in Greater London, is hiring a Research Software Engineer or Senior Research Software Engineer to develop high-quality code supporting research projects. The role involves collaborating closely with research leads and using expertise in programming and innovati ...

Senior Software Engineer – Climate Tech (Python/React)

Oliver Bernard is hiring a Senior Software Engineer (Python/React) in Greater London to develop software for climate technology initiatives. This role involves full-stack product development and partnership with a small, mission-led team. Candidates should have strong skills in Python and React, though diverse t ...

Senior Software Engineer London up to £150k

Forward Deployed Software Engineer (Python / TypeScript / AI) Oliver Bernard are partnered with a high-growth AI deployment company operating at the forefront of enterprise AI. Backed by top-tier investors and AI labs, they’re already delivering production-grade systems across finance, energy, an ...

Senior Software Engineer — Insurance Platform (Hybrid UK)

Frontline Ins UK is seeking a Senior Software Engineer in Belfast, Northern Ireland. This role involves designing, developing, and maintaining software systems for our insurance technology platforms. Ideal candidates should have over 5 years of experience in full-stack engineering with strong expertise in React, ...

Senior Software Engineer Core Experiences (SDKs & Cloud)

Speechify is looking for a Senior Software Engineer for its Core Experiences Team in Manchester, UK. The role involves building and maintaining SDKs that enhance the product experience across platforms. Responsibilities include optimizing functionality, collaborating with product teams, and developing cloud func ...

Senior Software Development Engineer in Test (Compliance)

About us @Symphony Secure. Connected. Intelligent. Symphony is an AI-powered communication and technology company fueled by interconnected platforms: messaging, voice, directory and analytics. Our end-to-end encrypted technologies enable over 1,400 institutions to accelerate AI im ...

Senior Software Engineer – AI Driven Global Marketplace

Bounce Digital is seeking backend-leaning product engineers to join their hybrid team in London. This role offers the chance to own problems end-to-end, including search, payments, inventory, logistics, and AI integrations. Ideal candidates should be comfortable working in ambiguity and have significant experien ...

Senior Software Engineer: Architect Scalable Web Apps

TulipTech is seeking a Senior Software Engineer to join their UK team. The role involves designing and building modern web applications with a focus on collaboration across cross-functional teams. Ideal candidates should have over 5 years of software development experience, with strong skills in Node.js, React, ...

Senior Software Engineer Test Equipment & CI/DevOps

Eclectic Recruitment Ltd is seeking a Senior Software Engineer to support the development of advanced test equipment software for missile systems. You will design software solutions primarily in C and C++, work in Agile teams, and apply DevOps principles. The ideal candidate has strong experience in software eng ...

Senior Software Engineer Real Time AI SaaS

ConnexAI in Manchester seeks a Senior Software Engineer to shape their digital presence by developing sophisticated SaaS applications for real-time systems in the AI sector. Ideal candidates will have extensive experience with Node.js, TypeScript, and a strong understanding of Linux Systems Administration. The r ...

Senior Java Software Engineer — Scalable Microservices (Remote)

10x Banking is looking for a passionate Software Engineer to work on cutting-edge technologies and deliver scalable solutions. This role involves building components for interest calculations and mentoring junior developers. Ideal candidates have solid Java skills, experience with cloud-based microservices, and ...

Senior Software Engineer, Scientific Instrumentation R&D

OMEGA, Inc. is looking for a Senior Software Engineer in Malvern, UK, with at least 5 years of experience in software development. The ideal candidate will develop software for advanced scientific instruments, emphasizing C++ and C#/.NET. This role involves addressing technical challenges, mentoring team members ...

Onsite Senior Software Engineer — Java/Spring & Cloud

hackajob is partnering with Raytheon UK seeking a Senior Software Engineer for a full-time role based in Manchester. The position involves designing and building software, collaborating with cross-functional teams, and contributing to project milestones. Candidates should possess full stack experience, expertise ...

Senior Software Engineer Adobe Experience Manager (AEM)

Senior Software Engineer - Adobe Experience Manager (AEM) Epsom & Barbican, London | Hybrid Working | Fixed-Term Maternity Cover (starting July 2026) Competitive salary available, depending on experience 37.5 hours per week We are looking for an enthusiastic Senior Soft ...

Senior Software Engineer Adobe Experience Manager (AEM)

Senior Software Engineer - Adobe Experience Manager (AEM) Epsom & Barbican, London | Hybrid Working | Fixed-Term Maternity Cover (starting July 2026) Competitive salary available, depending on experience 37.5 hours per week At Nuffield Health, ...

Senior Software Engineer, Real World Robotics Platform

ISL Talent is seeking a Senior C# Developer for Insphere in the UK. This role is not standard and offers the chance to work on a real-world engineering product, contributing to architecture and technical direction while engaging with robotics and measurement instruments. You'll enjoy flexibility with a hybrid wo ...

Senior Software Engineer C++ (Cloud Video Framework)

Salary Banding : £59,990 - £81,800 per annum Contract : Full-Time, Permanent Working Location : Hybrid, 2 Days a week in the office, minimum Office Locations : Basingstoke, Bristol, London Join Our Team as a Senior Software Engineer in Cloud Vide ...

Senior Software Engineer, Cloud Infra & OpenSource (Remote)

IDBS is looking for a Senior Software Engineer in Woking to design, develop, and maintain microservices and core platform infrastructure. The ideal candidate will have hands-on experience with Java, JavaScript/TypeScript, Serverless architectures, Terraform, and Kubernetes. Additional skills in Jenkins, React, o ...

Senior Software Engineer: Lead Cross Functional Projects

Energy Jobline ZR is looking for a software developer in Oxford, UK, with over 5 years of professional experience. Candidates should be proficient in mainstream programming languages and comfortable adopting high standards in coding practices. This role emphasizes leadership in technical projects and effective c ...

Senior Software Engineer Core Experiences (SDKs & Cloud)

Speechify is looking for a Senior Software Engineer for their Core Experiences Team in Nottingham. This role involves building and maintaining SDKs that enhance the product experience for millions of users. Responsibilities include collaborating with product teams, optimizing performance, and shipping cloud func ...

Senior Software Engineer Core Experiences (Kotlin MP)

Clutch Canada is seeking a Senior Software Engineer for its Core Experiences Team. In this role, you will collaborate with product teams to optimize functionality, ship cloud functions, and design APIs that enhance user experience. Ideal candidates will have strong systems thinking and collaboration skills, part ...

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