26 to 50 of 81 Senior Software Engineer Jobs in Oxfordshire

Senior Software Engineer – AI-Enabled Projects | Remote (UK) | £70,000–£90,000 Want to future-proof your career while shaping the next era of software delivery? Are you a seasoned software engineer who thrives on building clean, modern solutions to replace outdated systems? Do … for growing UK and international businesses, replacing outdated architectures with modern, scalable solutions. What You’ll Be Doing: Working end-to-end on greenfield software projects that replace legacy systems or building end-to-end solutions for startups. Taking the lead on architecture, development, deployment, and testing - no hand … value. Flat structure, high trust: Small teams, high autonomy, zero micromanagement. Future-focused: You’ll be at the forefront of a new model for software delivery, combining engineering best practices with cutting-edge AI capabilities. Ready to lead the charge in AI-enabled software engineering? Apply now and More ❯

Senior Software Engineer Fully Remote, excellent package and incredible opportunity We're looking for a Senior Software Engineer to join a fast-moving team building tools used by thousands of real-world users. You'll collaborate closely with Product, Design, and Customer Success to … and engage directly with customers to make sure what you're building actually works for them. What You’ll Be Doing Writing production-grade software in Ruby on Rails and React Native Leading on technical and architectural decisions across the stack Collaborating cross-functionally with Product, Design, and Customer More ❯

with an extra emphasis on expansion of our capabilities and capacity in helping solve unique client challenges. Summary: Beazley Security is seeking an experienced Senior Software Engineer to design innovative, secure scalable solutions that support our cybersecurity mission. As a key member of our global team, you … role will play a critical part in the continued improvement, scalable development, and support of products used to deliver Beazley Security services. As a Senior Software Engineer, this role will provide technical guidance around architecture and development, as well as mentor members of the Engineering team. This … test, and deployment processes. Create Infrastructure-as-Code. Collaboration: Work closely with product managers, other engineers, and stakeholders to define and deliver high-quality software solutions. Balance: Ensure feature development speed and reliability with well-defined service-level objectives. Improve: Continually update the deployment process to ensure only robust More ❯

I am supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! They are a heavily tech driven Product Company who put a huge emphasis on quality engineering, innovation and forward thinking. As … a Senior Software Engineer, you will work closely with their CTO and play a very important role on the direction of the product! You'll support with key tech decisions, architecture, project delivery and mentoring other Engineers in the team. Requirements: Deep experience with Python, TypeScript, React More ❯

Senior Software Engineer Node/TypeScript - Strong AWS - Docker £75-85K per annum Hybrid - Bristol (Max 1 or 2 days per month in Central Bristol office) We're excited to be the exclusive recruitment partner for a fast-growing SaaS startup that has recently secured Series … offering the chance to shape the future of their platform while building a standout career for yourself. The Role: We’re looking for a Senior Fullstack Engineer who’s excited not only by shipping top-quality platform features but also rolling up their sleeves to improve the infrastructure … system architecture. You’ll collaborate closely with product-focused teams while being the go-to person for infrastructure questions. We're looking for a Senior Fullstack Engineer who also has practical infrastructure and devops experience - someone who wears both hats comfortably. Your Responsibilities: - Build and maintain Fullstack features More ❯

Senior C++ Software Engineer Global FinTech Remote (NI & RoI) Permanent | Full-time Market based salary + bonus & excellent benefits package IT Search is proud to partner with a global FinTech leader expanding its UK engineering presence. We're looking for a Senior C++ Software Engineer More ❯

Senior Software Engineer Tech Stack: C#, .NET, Microservices, Docker, Kubernetes, AWS/Azure United Kingdom Full Remote: Perm Role Salary: £85,000 - £110,000 Harrington Starr has partnered with an innovative start up FinTech who specialise in providing market access and data from their ultra low-latency … platform to financial service firms, leading exchanges and single dealers across digital assets, FIX and more. They are looking to hire a Senior C#, .NET Engineer with strong experience in start-up/scale up firms, able to take ownership of developing new applications, adding features to existing More ❯

provider of Network Security solutions specializing in automatic detection and mitigation, network visibility, analytics, and reporting tools. About the Role Are you a seasoned software engineer with a passion for designing and developing cloud-native Infrastructure-as-Code (IaC) solutions from the ground up? Our client is seeking … a talented and motivated Senior Software Engineer to lead the development of our next-generation observability platform. THIS IS NOT A DEVOPS ROLE. Responsibilities Collaborate within a dynamic software engineering team to architect and build a new cloud-native IaC platform. Develop software using technologies … or on-premises setups. Engage in the full development lifecycle: design, define work, document, debate, code, debug, and support features from inception. Qualifications A software developer experienced in designing and delivering complex IaC capabilities from scratch, not merely operating existing environments. A background in developing cloud-native systems software More ❯

Senior Software Engineer – C/C++ Global FinTech Remote (NI & RoI) Permanent | Full-time £60K + bonus & excellent benefits package IT Search has partnered with a global fintech that’s growing its UK engineering team. They’re looking for a Senior C/C++ Engineer … maintain secure, high-performance systems that power real-time payments on a global scale. In this role, you’ll design and develop core backend software, working closely with a talented team to integrate with partner APIs and tackle challenges around performance, scalability, and reliability. It’s a product-focused … in a collaborative environment with strong technical standards. What you need: Solid experience with C or C++ in a production environment Familiarity with modern software engineering practices: version control, testing, code reviews Comfortable working with structured data (e.g. XML, JSON) and API interactions Strong analytical and problem-solving skills More ❯

I am exclusively supporting a FinTech Product Company who are currently hiring for 2 x Senior Software Engineers to join their remote engineering team. They are profitable and already have their product (which i can expand on) used by a number of enterprise clients. They are looking for … a confident, experienced & passionate Senior Software Engineer with a product mindset and a deep understanding of Software Engineering. As a business, they are heavily driven by quality engineering & innovation and try to do things in a product mindset based around their end users. The role is … + experience with another backend language (Ruby, C++. Elixir, Haskell, Go, Clojure or Scala) Private projects to showcase + deep interest/passion for software engineering is also a plus! They are also working heavily within AI and working with up to date AI technologies They are paying up More ❯

Senior Software Developer UK Remote £80,000 - £95,000 + Insurance + Pension An excellent opportunity awaits an experienced software developer with strong .NET and React skills to join a leading software company in a role offering strong technical variety, ongoing development opportunities, and involvement in … genuinely interesting projects. This company builds innovative software and data management systems that support critical decision-making in sectors such as environmental monitoring, infrastructure, and energy. In this role you'll join as a senior member of the development team, taking a hands-on role in the full … or interest in scientific, environmental, or infrastructure-related domains is a bonus. This is an excellent opportunity to join a collaborative and tech-focused software team in a senior position offering a mix of engineering depth, meaningful projects, and long-term growth. The Role: *Full-stack development using More ❯

Senior Software Engineer - .Net Salary £50K - £70K Based In Antrim/Hybrid VANRATH is delighted to be working exclusively with a leading business that is currently recruiting for a Full Stack Software Developer to join their close knit team. This is an exciting time for the … implements the latest tech - giving you exposure to both cutting-edge platforms and real-world industrial applications. Key Responsibilities: Develop, test, and maintain modern software applications. Collaborate with stakeholders to understand business needs and translate them into technical solutions. Build and manage relational databases for optimal performance. Take part … in the full SDLC including architecture, deployment, and testing. Uphold code quality, performance, and security standards. Essential Criteria: 3+ years of hands-on software development experience. Strong knowledge of C# , SQL , and JavaScript . Commercial experience with ASP.Net MVC , Entity Framework . Familiarity with front-end libraries like Angular More ❯

Company ALPINE RACING LIMITED Job Description We have a role for a Senior Software Engineer to join the Software Engineering & Data team, where you will play a crucial role in developing cutting-edge software solutions that support and enhance the work that will help the … Formula One World Championship and return to the top of the grid. This is a unique opportunity to be part of a team of Software, Data, and Platform Engineers, but also Data Scientists who work to improve all areas of the team, from the design and manufacture of the … car, to the performance analysis at track. The Role: The main responsibilities of this position are to execute the software development life cycle (SDLC) over legacy and new projects, and comply with project plans and industry standards, following the team's culture, as well as communicating with the engineering More ❯

Senior Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear from More ❯

We're partnered on an exclusive basis with a rapidly growing start-up who are looking for a Senior Software Engineer/Lead Engineer to help expedite their growth and be a future leader of the business. With an already experienced team they are looking for More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led … and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and … Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise More ❯

Senior Embedded Software Engineer | £60-70k | Kidlington | 1 day per week on-site My client is a rapidly growing, and already well established, company designing cutting edge analysis technology for high performance sectors. They have expanded their premises and design capacity, and are looking for an … experienced embedded software engineer. Main duties: + Develop complex embedded software and interface with hardware for new and existing products throughout the product life cycle. + Refactoring of firmware + Manage complex projects, supervise R&D staff, and collaborate with various departments to meet project objectives. Skills and More ❯

Senior Embedded Software Engineer £ 40k - 50 k Reading 1 or 2 days a week on-site My client is an elite company in their niche, providing electronics and software design services. Due to recent success, they are expanding their R&D team. Main duties: + Involvement … in the whole SDLC + Interfacing software with custom hardware + Building solutions using the latest embedded platforms Skills and Experience Required: + Experience with the whole SDLC + Professional experience programming in C++ in a Linux environment + Knowledge of object-oriented design, and data structures + Knowledge More ❯

We’re partnered with a globally recognised team behind a widely used open-source platform. They’re looking for a Senior Software Engineer with strong Ruby experience to lead on new feature development, performance improvements, and robust testing — all within a fully remote environment. You’ll be More ❯

to join us in person once a month for team meetings in either Edinburgh or London. How you will make a difference: As the Senior Software Engineer , you will play a key role as part of an agile team building innovative products that make life better for … continuous feedback Advance the values of the organisation (caring, accountability, integrity, empowerment, passion, fun) What will make you stand out: Extensive experience in professional software development, with a strong track record of building and delivering high-quality applications Expert proficiency with JavaScript (NextJS, TypeScript, and SST) Strong experience with More ❯

Senior Software Developer - Kendal (C#, .NetCore, Azure, SQL) £55,000 plus fantastic benefits including a 30% bonus and private healthcare! Do you want to work for a well-established company that has been going for over 30 years in the tech for good space. They have a very More ❯

Senior C# Developer, Senior .Net Core Analyst Programmer , Physics, Engineering, AWS, Cloud, Azure, C#/.Net, Microsoft Stack, SQL, FFT, Machine Learning, Sustainability - Nottingham 75K UK-based, award-winning technology company specializing in Data Driven Technology - East Midlands - Salary up to 75K + pension, bonus, flex around start … have a physics-biased education or work experience? Do you have experience in: complex algorithms, linear algebra, FFT, or signal processing? Role: A seasoned software developer with over five years of commercial experience in modern C# .NET development, complemented by an engineering/physics background. The ideal candidate will … architecture, along with experience using cloud platforms (preferably AWS) and relational databases, SQL. Additionally, you should bring proven expertise in Agile methodologies and modern software delivery approaches, combined with strong collaborative and communication skills, a proactive attitude focused on delivering tangible results, a genuine passion for leveraging technology to More ❯

C++ Software Engineers (All Levels) – Edinburgh Hybrid (2 Days On-Site) We’re at a pivotal stage in building the first of two new R&D teams for a cutting-edge medical technology company based in Edinburgh. This is a rare opportunity to join a greenfield project, with up … to 22 hires planned across Principal , Senior , and Mid-Level Software Engineer roles. The product is a next-generation, globally distributed medical device, backed by a major parent organisation that ensures long-term stability and investment. The company offers a positive work-life balance, with standard working More ❯

Culham Science Centre near Oxford, UK and have a satellite office in the centre of Bristol. The Role We are looking for a passionate Senior AI Software Engineer to work with our CTO and AI Architect to work on our proprietary AI stack, both delivering operational improvements … neural network execution engines, genetic algorithms and training frameworks. This dynamic role will require you to have a broad interest in and experience in software engineering, working collaboratively with other developers on innovative code bases.Experience of genetic algorithms, low level neural network execution and concepts such as neuroplasticity, recurrent … Liaise with applications engineers and our commercial teams to identify and develop new features and capabilities Contribute to or lead the development of internal software libraries Champion and maintain code quality standards and professional software development practices across our code base. Behaviours and personal characteristics Passionate about software More ❯

Culham Science Centre near Oxford, UK and have a satellite office in the centre of Bristol. The Role We are looking for a passionate Senior AI Software Engineer to work with our CTO and AI Architect to work on our proprietary AI stack, both delivering operational improvements … neural network execution engines, genetic algorithms and training frameworks. This dynamic role will require you to have a broad interest in and experience in software engineering, working collaboratively with other developers on innovative code bases.Experience of genetic algorithms, low level neural network execution and concepts such as neuroplasticity, recurrent … Liaise with applications engineers and our commercial teams to identify and develop new features and capabilities Contribute to or lead the development of internal software libraries Champion and maintain code quality standards and professional software development practices across our code base. Behaviours and personal characteristics Passionate about software More ❯