76 to 100 of 131 Senior Software Engineer Jobs in the South East

Hybrid UK Senior Software Engineer — ML & API Systems

Location
Oxford, England, United Kingdom
Ellison Institute of Technology (EIT) is seeking a Senior Software Engineer for the SciComp team to build robust, scalable software powering scientific initiatives. You will contribute to the full software lifecycle with a focus on reliability, modularity, and engineering excellence. You will design and deploy ...

Senior Software Engineer: DevSecOps & Autonomy (Hybrid)

Location
Crawley, England, United Kingdom
ALTEN Group is seeking a Senior Software Engineer (DevSecOps & Autonomy) to shape secure, scalable software across safety-critical programmes in the UK. The role blends hands-on development with CI/CD, DevSecOps, data integration and cloud technologies for deployment across multiple projects. You will engage … across software, systems and infrastructure teams, delivering robust solutions while advancing automation, security and modern engineering practices. #J-18808-Ljbffr ...

Senior Software Engineer — Direct CTO, Portsmouth Office

Location
Portsmouth, England, United Kingdom
leading recruitment firm is seeking a Senior Software Engineer to join their team in Portsmouth. This full-time, office-based role involves building new features, maintaining legacy systems, and collaborating directly with the CTO. Ideal candidates will have 7+ years of software engineering experience, a degree … Software Engineering, and proficiency with technologies such as Node.js, PHP, and various databases. The company offers a dynamic work environment focused on quality and precision. #J-18808-Ljbffr ...

Senior Software Engineer - Real-Time Quantum Control (Rust)

Location
Oxford, England, United Kingdom
IonQ in Oxford is seeking a Senior Software Engineer to join the Runtime Software team. You will implement real-time control system behaviours and abstractions for experiments, helping turn hardware into a scalable quantum computer while shaping the core Rust libraries and execution environment. You will ...

Senior Software Engineer: Autonomous Marine Control

Location
Portsmouth, England, United Kingdom
SubSea Craft, a UK-based maritime technology company, is seeking a senior software engineer to design and deliver control software for intelligent vehicles. You will own closed-loop control architecture and vehicle systems management from scoping to sea trials, and act as technical authority for mobile … platforms. Responsibilities include design of software architecture, implementing closed-loop control, documenting designs, mentoring engineers, and ensuring timely delivery with the broader #J-18808-Ljbffr ...

Senior Software Engineer, System Orchestration

Location
Oxford, England, United Kingdom
quantum platforms more accessible and impactful than ever before. Location Oxford, UK Office commitment Hybrid The Role We are looking for a highly technical Senior Software Engineer to join our System Orchestration team in System Software at Oxford Ionics. In this role, you will be responsible … building and operating the software that keeps our systems calibrated, decides what they do next and keeps the record of what they did, contributing to the team's mission of keeping our quantum computers running useful work around the clock. The trapped-ion quantum computers we are building will ...

Senior Software Engineer, Runtime

Location
Oxford, England, United Kingdom
making quantum platforms more accessible and impactful than ever before. Location Oxford, UK Job ID 1831 The Role We are looking for a Senior Software Engineer to join our Runtime Software team at Oxford Ionics/IonQ. In this role, you will be responsible for working … scientists to understand their requirements. Interfacing with system orchestration, non‐realtime control and compiler teams to ensure our work integrates seamlessly with the wider software architecture. Implementing drivers for various real‐time devices. Producing tooling to enable users of our code to iterate rapidly and fearlessly. Developing the execution ...

Senior Software Engineer - Cloud SaaS, Hybrid, AI Features

Location
Petworth, England, United Kingdom
Stratospherec Limited is recruiting a senior software engineer for its client, an award-winning software company delivering financial management systems to UK primary industries. Based in West Sussex, you will help migrate a desktop product to a cloud-native SaaS platform, shaping architecture, standards, and mentoring ...

Senior Software Engineer - Cloud, AI & Legacy Modernization

Location
Abingdon, England, United Kingdom
Halliburton is seeking a Senior Software Engineer to design, develop, and modernize high-performance desktop and cloud applications in a hands-on role at Milton Park, Abingdon, UK. You will own the technical direction, write code daily, review PRs, and drive architecture decisions with the Team Lead … Product Owner. The ideal candidate has 5+ years in production software, strong C#/.NET and C/C++ skills, cloud experience (AWS/Azure/GC), and hands-on CI/CD. #J-18808-Ljbffr ...

Senior Software Engineer - Java & Python, AI for Docs

Location
Oxford, England, United Kingdom
Elsevier is seeking a Senior Software Engineer I (Java & Python) to help build the Document Intelligence capabilities powering the Submission and Editorial platform. You will design and deploy cloud-hosted services that transform unstructured manuscripts into structured data, enabling AI-driven features across the Submission portfolio. … will work at the intersection of software engineering, data engineering, and AI, leveraging AWS, microservices, and modern tooling to deliver scalable, #J-18808-Ljbffr ...

Senior Software Engineer - .NET & Azure (24-Mo FTC)

Location
Southampton, England, United Kingdom
Millbrook Healthcare Group is seeking a Senior Software Engineer for a 24-month fixed-term contract in Southampton. You will own complex changes from design through to production, combining legacy VB.NET/C# and modern .NET with React/TypeScript in a mixed estate. The role ...

Senior Software Engineer II

Location
Oxford, England, United Kingdom
capabilities that support researchers, reviewers, and editors throughout the submission and peer review journey, helping improve the overall scientific publishing experience. Join our Software Engineering Team Our dynamic Agile Teams deliver the technology which facilitates researchers bringing their work to the world via trusted journals through peer-review. About … Role As a Senior Software Engineer, you will build capabilities to support scientific researchers through the process of submitting the research for publication and undertaking peer-reviews others work. We are continually evolving our technology in response to researchers’ needs and to the ever-changing technical landscape ...

Senior Software Engineer - Quantum Hardware Controllers

Location
Oxford, England, United Kingdom
IonQ, Inc. is hiring a Senior Software Engineer for the non-realtime controllers team in Oxford. You will own hardware control surface areas end to end, from device protocol to reliable fleet services. The role is hands-on and collaborative with software, systems, and quantum scientists ...

Senior Software Engineer II

Hiring Organisation
Elsevier
Location
Oxfordshire, United Kingdom
Employment Type
Full Time
capabilities that support researchers, reviewers, and editors throughout the submission and peer review journey, helping improve the overall scientific publishing experience. Join our Software Engineering Team Our dynamic Agile Teams deliver the technology which facilitates researchers bringing their work to the world via trusted journals through peer-review. About … Role: As a Senior Software Engineer, you will build capabilities to support scientific researchers through the process of submitting the research for publication and undertaking peer-reviews others work. We are continually evolving our technology in response to researchers' needs and to the ever-changing technical landscape ...

Senior Software Engineer - Cloud-Native AI & Mentoring

Location
Basingstoke, England, United Kingdom
Unum UK is seeking a Senior Software Engineer to join an Agile team and drive architecture-aligned delivery across our application portfolio. You will mentor junior engineers, contribute to design decisions, and champion cloud-based, scalable solutions. You will work on features end-to-end, collaborating with ...

Senior Software Engineer - Lead Cloud & Microservices

Location
Oxford, England, United Kingdom
Aurora Energy Research Limited in Oxford, UK, is seeking a Senior Software Engineer to turn product ideas into robust cloud-based solutions for the energy transition. You will work on microservices using TypeScript/ExpressJS/AWS Lambdas and React, delivering customer-facing software from design ...

Senior Software Engineer — VA Healthcare AI Platform

Location
Witney, England, United Kingdom
Abridge is seeking a Senior Software Engineer to join our VA pod, delivering AI-powered clinical documentation tools for U.S. Veterans Affairs. You’ll build and support web applications and backend services using TypeScript, React, and Google Cloud, ensuring security and scalability for federal deployment. ...

Senior Software Engineer, System Orchestration (Hybrid)

Location
Oxford, England, United Kingdom
IonQ in Oxford is seeking a highly technical Senior Software Engineer to join the System Orchestration team in System Software. You will build and operate the software that calibrates quantum systems, schedules programs and manages hardware access across the fleet. This hands-on role emphasizes stateful ...

Senior Software Engineer, Non-Realtime Controllers

Location
Oxford, England, United Kingdom
powerful, accurate and reliable quantum systems to tackle problems that today's supercomputers cannot solve. We're looking for an enthusiastic and highly technical Senior Software Engineer for our non-realtime controllers team who will thrive in our dynamic cross-disciplinary environment. You will be working closely … with our skilled software engineers, our systems teams who operate the physical quantum computers, and our world-leading quantum scientists to build and operate the software that controls the hardware surrounding our quantum computers. Previous exposure to quantum systems is not required. You will own areas ...

Senior Software Engineer

Location
Milton Keynes, England, United Kingdom
develop and maintain a microservices-based system using PHP and modern frameworks, contributing to the re-architecture of our bespoke platform., The Senior Software Engineer will be responsible for implementing microservices using PHP, with a strong emphasis on Laravel or similar frameworks. The role also involves database ...

Senior Software Engineer - Lead & Mentor, EV Tech (Hybrid UK)

Location
Milton Keynes, England, United Kingdom
United Kingdom is seeking a Senior Software Engineer for a hybrid role based in Milton Keynes. You will act as a technical authority, mentor the team, set goals, and deliver features end-to-end across platforms and services. You will design robust components, implement secure, maintainable code ...

Senior Embedded Software Engineer – Vacuum Tech

Location
Eastbourne, England, United Kingdom
Edwards in Eastbourne, United Kingdom, is seeking a Senior Software Engineer to develop and support software for controllers, instrumentation, and interfaces within Atlas Copco’s Vacuum Technique Division. You will participate in all lifecycle stages, reporting to the NPI Manager. You will mentor colleagues, drive process ...

Senior Cloud Software Engineer - Health Tech & AI

Location
Oxford, England, United Kingdom
Elsevier is seeking a Senior Software Engineer to build cloud-native applications that support researchers and clinicians through the peer-review journey. You will join our NPRE team and help evolve a cloud-based distributed system with a focus on performance and reliability. You will work with ...

Senior AI Software Engineer - Risk & Governance (Hybrid/Remote)

Location
Oxford, England, United Kingdom
OXFIDA is seeking a senior software engineer to join a small, technically strong delivery team. You will help take AI Risk Governance and Pricing Engine products from pilot to production, contributing across the stack and collaborating with ML engineers and product managers. The role is hands ...

Senior AI Software Engineer - LLMs for Grid Decarbonisation

Location
Oxford, England, United Kingdom
Aurora Energy Research Limited seeks a Senior Software Engineer (AI) to lead backend systems supporting cloud-based tools for grid modelling and energy market analysis. You will guide a small, fast-paced team and own projects from concept through production, delivering data-driven AI-enabled decisions ...