26 to 50 of 122 Senior Software Engineer Jobs in the South East

Senior .NET Full Stack Developer Oxford | Remote | Competitive Salary (DOE) A leading software company based in Oxford is looking for a Senior .NET Full Stack Developer to join their growing team. This is a key role delivering high-quality software solutions for both UK-based and international clients. As a Senior Developer, you’ll be More ❯

Job Title: S enior Software Developer Location: London (Hybrid) Job Type: Full-time (Permanent) Company: Tyréns UK At Tyréns UK , we believe in creating lasting impact through innovative design and engineering solutions. As a forward-thinking consultancy, were dedicated to shaping the future of infrastructure and urban development, all while prioritising sustainability, collaboration, and excellence. We're seeking a … highly driven Senior Software Developer to join our expanding IT team. Under the guidance of the IT Director, this role will be responsible for developing both internal and external applications while overseeing the management of UK business systems, all within strict operational timelines. Working closely with the IT Director and management teams, the Senior Software Engineer will continuously review and enhance applications to ensure they align with the evolving needs of the business. This position spans the full software development lifecycle, from gathering initial user requirements and design to development, testing, and ongoing maintenance. The Role & Responsibilities The Senior Software Developer will play a key role in delivering a best-in-class More ❯

driven tech company. You’ll lead a small, agile team building scalable backend systems with Node.js , TypeScript , and AWS —delivering real impact, fast. This role is ideal for a senior engineer who loves hands-on coding, technical leadership, and solving tough problems in a fast-moving environment. What You’ll Do: Lead end-to-end delivery of features More ❯

team of creators, innovators, and collaborators, crafting impactful digital products and services for startups, scaleups, and enterprises. We foster a forward-thinking, inclusive culture where innovation thrives, and every engineer has a voice. We're looking for a Senior Software Engineer who is excited about the future of software development-someone who leverages AI-assisted … is an opportunity to be part of a team that's pioneering modern engineering practices, from assisted coding workflows to intelligent automation in app development. If you're an engineer who is always experimenting with the latest tools and has a passion for delivering cutting-edge applications, we'd love to hear from you. This is a hybrid role … technology features under the hood , such as chatbots, AI-powered automation tools, or AI-enhanced search features. You write clean, scalable, and maintainable code with a focus on modern software design patterns . You're comfortable working in multidisciplinary, cross-functional teams and can articulate complex technical decisions to both technical and non-technical stakeholders. You embrace continuous learning More ❯

and simple ways for people to connect. We strive for an outstanding user member experience in all areas of giffgaff, so we are looking for a passionate and enthusiastic software engineer who cares about the quality of their work and how the software and services they create will positively impact members. We're constantly looking for ways … curious, proactive and able to produce solutions your colleagues can use, maintain, and learn from. Know how to develop and follow a sense of purpose. Identify improvements in the software that you use and build. Accept feedback and adapt to your team and the company's current priorities. Who We Are: Do you want to join a telecoms company More ❯

X20 Senior Software Engineers Needed – Tech Start Up – Fully Remote - GO, Golang, PHP, GraphQL, GRPC, AWS, API, Microservices, Next.JS, React - Offices based in London but all roles are fully remote Areti has partnered with a rapidly growing tech-led organization who are seeking multiple Software Engineers ranging from junior to senior and looking to grow their … team by a further 20 Software Engineers this year. They are one of the most exciting START-UPS in the UK! As a Software Engineer, you will enjoy working on a variety of interesting and challenging projects and can work with various programming languages. On the other hand, if you are happy working in your niche and … the software languages you are most comfortable with then this is fine also. Culture, Fun, and self-development are words often heard in this organization so if you are a software engineer looking for a company with clear career and development opportunities then please reach out today. You will ideally have exposure to as many of these More ❯

Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, the Senior Software Engineer will build innovative next-gen solutions that are at the forefront of the industry. In this role, the Senior Software Engineer will be given full autonomy, taking ownership from … backend systems (some frontend too, if you like). This area is the future of the company (and the industry!) and as such has strong investment and visibility. The Senior Software Engineer will be responsible for leading the design, build and deployment of industry leading software solutions. You’ll work in collaboration with product, design and … the wider engineering team to improve and scale existing features, as well as build brand new ones. The Senior Software Engineer will have: • Strong backend or full-stack software development experience • Strong coding experience in either Java, Golang (Go), Python or Scala – multiple would be even better! • Experience with cloud platforms e.g. AWS, Azure, GCP - Google More ❯

Senior Software Engineer, Python, AWS, MedTech, COR7276 This is an excellent Senior Software Engineer/Python Developer position, working for an innovative MedTech company with a growing reputation in their field. Working in a full-stack capacity, but with a back end focus, the Senior Software Engineer/Python Developer will … Kubernetes, Terraform and microservice architecture to design and build key platforms for the business, that utilise Machine Learning and AI to analyse complex medical imaging data. The Company The Senior Software Engineer will join an innovative Machine Learning MedTech company with offices in both Oxford and London. The Senior Software Engineer will contribute to … rewards hard work and innovative thinking. They offer hybrid working, with up to 4 days a week working from home. Benefits Some of the benefits on offer for the Senior Software Engineer/Python Developer, include: Flexible working 25 days holiday + BH Employee share options What's Required? The Ideal candidate for the role will have More ❯

Senior Software Engineer, Contract – B2B FinTech SaaS | Go & AWS | London (Hybrid) Company: Cloud Lending Solutions for Modern Finance A fast-scaling SaaS FinTech, streamlining SME lending for banks and alternative lenders. Looking for a Senior Software Engineer on a contract basis to support a major platform upgrade and help scale our event-driven architecture. More ❯

Senior Software Engineer - Modelling and Simulation, C, C++, Unreal Engine Location: Portsmouth, Hampshire/Hybrid Role Salary: £40,000 to £60,000 negotiable depending on level of experience, plus excellent benefits Our client is a successful consultancy providing digital technology expertise to projects in the Ministry of Defence. They are looking for an experienced Software Developer … to join their innovative team. Job role for Senior Software Engineer: This is an exciting opportunity for a senior level Software Engineer with at least 5 years of programming experience to join a newly formed team within our client's digital technology area. You will be working on a variety of projects evaluating the … latest military technology to counter the current and future threats our country faces, including Wargaming, Virtual Games, and Wargame scenarios. Your Responsibilities as a Senior Software Engineer: Development of constructive and real-time Modelling and Simulation (M&S) models and scenarios using a combination of Python, C, C++, and custom scripting languages using object-oriented design techniques. More ❯

Vacancy for Senior Software Engineer at Preservica Vacancy for Senior Software Engineer at Preservica Abingdon/Remote, UK Could you create world beating enterprise scale software? Could you add value to an existing team of highly skilled developers? Are you ready to make your mark on future proofed software? We are world … to stay ahead we need the brightest and most talented commercial and technical innovators to join our development team and right now we are looking for a solid Java Software Engineer. The Role Our Software Engineers are responsible for the full software development lifecycle; writing well designed, testable and maintainable efficient code. Your work will extend to … include: Analysis work to determine operational feasibility. Maintaining Preservica and industry standards and project plans Integrating software components into fully functioning software systems Developing verification plans - adhering to quality assurance procedures Our offices are in Abingdon but this role can be either office based or worked remotely in the UK. What We Look For To be part of More ❯

Senior Embedded Software Engineer | £60-70k | Reading | Remote, with occasional visits My client is an elite company providing media content solutions. Due to sustained success, they are expanding their R&D team. They're seeking a Senior Software Engineer with strong C++ and Linux experience, who enjoys solving complex problems and building robust … scalable solutions in a fast-paced R&D environment. Key Responsibilities: Design, implement, and validate embedded software for high-performance video systems Contribute across the stack: UI, middleware, and low-level drivers on Linux platforms Collaborate with hardware and FPGA teams to deliver integrated product solutions Essential Experience: 5+ years software development experience, including full lifecycle delivery Strong … C++ Linux development background Experience with embedded software & hardware integration Desirable Skills: Embedded Linux development, Yocto, kernel config, or device drivers Familiarity with Qt, Python, RESTful APIs, oor AWS Experience in video systems, networking (TCP/IP, multicast), or cross-functional engineering teams What you’ll get: £60-70k (Dependent on experience) Very generous bonus scheme Ability to More ❯

Senior Software Engineer – Biotech | £70–80k | Hybrid (3 days/week in London) We’re supporting a fast-growing biotech company in London that’s using cutting-edge automation and machine learning to accelerate therapeutic antibody discovery. They’re scaling their internal systems and tools and are now hiring two Senior Software Engineers to join … This is a full-stack role (though one of the hires could lean more towards backend). You’ll work closely with scientists, engineers, and product stakeholders to build software that powers real-world lab automation and scientific data handling. What you'll be doing: Building tools that enable large-scale scientific experiments and research automation Collaborating with wet … lab scientists and non-technical users Developing clean, maintainable software in Python, React, TypeScript Deploying and managing apps in GCP Working in a close-knit engineering team with room to shape architecture and best practices What they’re looking for: 5+ years of Python development experience (industry) Solid experience with production systems and CI/CD pipelines Experience with More ❯

such as monitoring, fault detection, reporting and billing. Next, Metris is building proprietary AI to deliver autonomous operation of small-scale renewables. The Role We’re looking for a Senior Software Engineer with strong experience in data-intensive systems to join our team. You’ll bring a solid grounding in data processing and architecture, and will play … facing features . What You'll Do Own platform-wide data integrity : Design and maintain core data flows and pipelines that ensure reliable, accurate sensor and meter data. Build software that handles complex data : From ingestion to transformation to visualisation, you’ll work across the stack to make our data usable and valuable. Collaborate across teams : Partner with Product … features and improvements. Ensure robustness and consistency: Ensure all systems you design are fault-tolerant, scalable and correct using appropriate architecture and testing approaches. About You You’re a senior engineer who moves comfortably between building reliable software systems and thinking deeply about data architecture. You don’t need to be a dedicated data engineer or More ❯

Senior HPC Software Engineer Senior HPC Software Engineer Apply locations Reading area time type Full time posted on Posted 5 Days Ago time left to apply End Date: January 16, 2025 (22 days left to apply) job requisition id R12925 If you'd like to be considered for this opportunity we encourage you to … may fit in with your lifestyle. Just let us know your preferred working pattern on your application. Let us introduce the role An opportunity is now available for a Senior HPC Software Engineer to provide computer science support, through development and deployment of software techniques and solutions. As part of this role, you will be: Providing … appropriate assistance for porting specific codes to new platforms. Designing, coding, testing, installing, and maintaining software modules. Producing suitable online documentation. Interacting with vendors, universities, and US laboratories on leading-edge research. Undertaking research level investigation of advanced novel techniques for solution of multi-physics problems. Developing relevant benchmarks for assessing current and future systems. Maintaining an awareness of More ❯

Senior Software Developer 📍 Location: Central Reading, UK (Hybrid Working) 📄 Contract: Permanent 💰 Salary: £50,000 – £70,000 per annum (depending on experience) 83zero is partnered with a pioneering tech company who is seeking a talented Software Developer to join their team and contribute to a major international research infrastructure initiative. This role focuses on building cloud-based digital … organisation effort to develop tools and services that ensure the integrity, accessibility, and preservation of research outputs. This is a rare opportunity to work at the intersection of commercial software development and international research, contributing to both a thriving SaaS platform and a high-profile European project. Key Responsibilities Design and implement SaaS solutions for digital preservation. Develop and … integrate software services into a large-scale research infrastructure. Implement support for project-specific specifications, protocols, and data transformation. Contribute to a registry of digital preservation tools and services. Collaborate with stakeholders to validate and refine solutions. Advance standards and protocols for long-term digital preservation. Essential Skills Proficiency in Python , Java , or both. Experience with cloud-hosted software More ❯

Systems As a solutions developer at BAE Systems, you will work at both the system and component levels. Your responsibilities will include acting as the technical authority for relevant software applications, developing applications using React, TypeScript, and Kotlin, and engaging with key project customer stakeholders. Skills & Experience Essential Professional work experience in a similar role Previous experience working as More ❯

next generation uncrewed autonomous systems, integrating robotics and autonomy with vehicular technologies. These are nascent projects with in-house technology know-how from techpreneur founders. They are looking for senior software engineers looking for an intellectually challenging problem to work on and get stuck into. The project work will be both core tech development, simulation work as well … as real-world testing of hardware. This could include: low-level software for robotics development and integration; building simulation environments to test autonomous behaviours; HIL/SIL testing; software for autonomy; field testing. Requirements - Degree in computer science or similar and ideally a PhD. - Demonstrable project experience developing production code in C++ and Python on Linux including documentation More ❯

next generation uncrewed autonomous systems, integrating robotics and autonomy with vehicular technologies. These are nascent projects with in-house technology know-how from techpreneur founders. They are looking for senior software engineers looking for an intellectually challenging problem to work on and get stuck into. The project work will be both core tech development, simulation work as well … as real-world testing of hardware. This could include: low-level software for robotics development and integration; building simulation environments to test autonomous behaviours; HIL/SIL testing; software for autonomy; field testing. Requirements Degree in computer science or similar and ideally a PhD. Demonstrable project experience developing production code in C++ and Python on Linux including documentation More ❯

Job Title Senior Software Development Engineer Job Description Job Posting Description In this role, you have the opportunity to Be involved in the development of Philips CDS software, within the Tools team. In compliance with the ISO standards applied to the medical sector (ISO 13485), you will participate in the creation of tools used by our … You will work in a modern environment, with state-of-the-art technologies. You work entirely in English. You will apply the best practices, methods and techniques of modern software development. Your role: Design the technical solution that meets the functional specifications Participate in the technical choices in accordance with the architecture choices established by the project managers Develop … software in accordance with development standards and procedures Software development in accordance with development standards and procedures Create and maintain the CI/CD pipelines necessary for the deployment of our solution Write the necessary technical documents Estimate the time required to complete your tasks Update the time spent on your tasks to facilitate tracking You're the More ❯

SENIOR .NET DEVELOPER/£70K + 20% BONUS/REMOTE (OCCASIONAL TRAVEL TO OXFORD) Fancy joining a business whose services are used across the globe? The business has a turnover of $140 million and there are no signs of slowing down , actually, the complete opposite. They have big plans to grow their tech department over the next year and … are in need of Senior .NET Developers to join asap. What's in it for you? £70,000 base salary 20% annual bonus (paid out quarterly) Remote first working with an Oxford hub Chance to join a growing tech community What do you need? .NET/C# SQL AND MySQL Frontend experience (Vue/React/Angular/Svelte More ❯

alongside exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Job Description We currently have a fantastic opportunity for a Senior Software Engineer to join our technology team! You will be our technical expert for a squad building software and customer experiences that are market leading and … testing and CI/CD Working with SRE engineers to build distributed systems with a focus on high availability, low latency and scalability (you build it, you run it) Senior member of esure’s engineering community, engaging in tech forums and driving tech change wider than your squad We would love you to bring! Senior Developer experience in More ❯

alongside exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Job Description We currently have a fantastic opportunity for a Senior Software Engineer to join our technology team! You will be our technical expert for a squad building software and customer experiences that are market leading and … testing and CI/CD Working with SRE engineers to build distributed systems with a focus on high availability, low latency and scalability (you build it, you run it) Senior member of esure’s engineering community, engaging in tech forums and driving tech change wider than your squad We would love you to bring! Senior Developer experience in More ❯

Title: Software Engineer (Fullstack/Frontend leaning) Salary/Package: £80k-£90k + Equity Company Sector: Fintech (Sustainability) Tech: TypeScript, Node, React, Next, GraphQL Location: Central London (London Bridge/Bank) WFH/Hybrid: 2 days a week on site We're teaming up again! Bounce is back partnering with one of our favourite customers — the same awesome … fintech crew we placed three top-notch software engineers with in 2024. Fast-forward to 2025: they’ve kicked things off strong and are growing again We’ve known the CTO for ages — genuinely one of the good ones. They’re making waves in the fintech space, bridging the gap between financial and sustainability data. Their platform makes it More ❯

. We’ve already developed functioning prototypes and are now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it … s about rethinking how AI workloads are executed at speed and scale. You’ll lead the design and implementation of software systems that run distributed, low-latency inference across clusters. You’ll work closely with hardware and ML teams to optimise every layer of the stack—from model representation and execution to data movement and scheduling. Whether it’s … hardware-level constraints Collaborate with compiler engineers to improve code generation, execution paths, and memory layouts using tools like LLVM or MLIR Work with hardware teams to ensure the software stack fully leverages the capabilities of our OTPU architecture Extend ML frameworks (e.g. PyTorch, ONNX, OpenXLA) to better support performance-critical inference paths Lead design reviews, mentor engineers, and More ❯