3388 IT & Software Developer jobs in the UK

Ion recruitment jobs

R&D Software Engineer

£50,000 - 75,000
Ion recruitment
Waltham Avenue, Guildford
£50,000 - 75,000
Company Size icon
Company Size
<50
Company Type icon
Company Type
Services
Exp Level icon
Exp Level
Senior
Job Type icon
Job Type
Full-Time
Language icon
Language
English
Visa sponsorship icon
Visa sponsorship
No

Requirements

Must:
- An advanced degree (Masters, PhD, or equivalent experience) in a technical field such as Engineering, Physical Sciences, Mathematics, Computer Science, or related - Strong analytical and problem-solving skills, with experience tackling complex technical challenges - Solid programming ability and experience developing technical or scientific software in one or more languages (Python, C++, C# preferred) - Ability to work effectively in a collaborative, multidisciplinary environment - Strong communication skills and the ability to explain technical ideas clearly For Research-Focused Candidates: - Experience in machine learning, optimization, control, probabilistic modeling, or related fields - Development of new algorithms, models, or computational methods - Scientific computing, simulation, or numerical methods For Software Engineering-Focused Candidates: - Professional software development, ideally in scientific or technical domains - Writing high-quality, maintainable code in one or more languages (e.g., C++, C# or similar) - Expertise in software design, testing, and maintainability Beneficial (Not Required): - Experience in applied R&D, innovation, or advanced technology teams - Exposure to interdisciplinary areas like digital twins, agent-based systems, reinforcement learning, or advanced optimization - Experience mentoring others, leading small technical projects, or guiding technical direction

Technologies

AI
C#
Machine Learning
.NET

Responsibilities

- Contributing to early-stage research and prototyping of new modeling, optimization, AI, or simulation approaches - Designing and implementing algorithms, numerical methods, and computational models for complex engineering and scientific problems - Translating exploratory research code into reliable, maintainable, and high-performance software for internal or customer use - Working across languages and environments (e.g., Python for research, C++/C# or other compiled languages for production systems) - Collaborating with researchers, domain specialists, and software engineers to identify promising ideas and develop practical solutions - Helping define technical approaches and best practices for innovation projects - Contributing to code quality through testing, documentation, and sound software engineering principles - Taking ownership of technical workstreams, from concept through to implementation and integration - Providing technical direction on innovation-focused projects (for more experienced candidates) - Mentoring or guiding other engineers and researchers (for more experienced candidates) - Helping shape the longer-term technical roadmap in selected areas of innovation (for more experienced candidates)

Description


We are a world-leading innovator based in Surrey, UK, seeking a passionate R&D Software Engineer to join our dynamic team. This full-time position offers a competitive salary (dependent on experience) and excellent benefits. Our Innovation Team operates at the exciting intersection of research, advanced engineering, and product development, driving technological breakthroughs that shape industry-leading products. We encourage applications from diverse backgrounds as we aim to build the future together.
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You can find C#.NET Developer salaries in the UK here.

How many C#.NET Developer jobs are in the UK?

Currently, there are 3388 C#.NET openings. Check also: Xamarin jobs, Unity jobs - all with salary brackets.

Is the UK a good place for C#.NET Developers?

The UK is one of the best countries to work as a C#.NET Engineer. It has a vibrant startup community, growing tech hubs and, most important: lots of interesting jobs for people who work in tech.

Which companies are hiring for C#.NET Developer jobs in the UK?

Openda Ltd, Bluefruit Software Limited, The Scouts Association, City of Lincoln Council, Mas & Pas Limited, Iridium Consulting Limited, Rebus Recruitment among others, are currently hiring for C#.NET roles in the UK.

The company with most openings is Experis as they are hiring for 101 different C#.NET Developer jobs in the UK. They are probably quite committed to find good C#.NET Developers.