.net software engineer jobs in Calderdale

You will join a cross-functional product engineering team working on the evolution and modernisation of a core SaaS platform. The focus is on building scalable, cloud-native services while improving reliability, performance, and long-term maintainability.

You will be trained to create or enhance your knowledge of V&V. How will you contribute to the team...

You will design and build APIs that enable products, partners and AI services to work together, including: Building RESTful APIs using C# .

You will likely bring: Strong experience building backend services in C# .

You will be working closely with the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will:

Job Title: Software Development Engineer Salary: Up to £75k Job Type: Full Time, Permanent Location: Fareham, Hampshire (Hybrid working available) About the Opportunity: A UK-based technology organisation in Fareham is seeking a Software Development Engineer to support the development of software used within government, defence and law-enforcement environments. This role focuses on...

About the Job This position is for a Senior Software Engineer with a minimum of 5 years of experience in backend development and a passion for building robust, scalable systems. We are looking for an engineer with a strong background in the C# .NET ecosystem, and a preference for candidates with significant experience on AWS. Are you ready for a challenge? We're looking for a dynamic software...

Job Description Our client is a global leader in ship navigation systems and advanced maritime solutions, delivering tailored technologies for commercial vessels, mega yachts, refit projects, naval surface combatants, small combatants, and submarines. Our client is seeking Software Engineers at various levels of experience to join their small UK-based software development team. This is an...

Job Description Our client is a rapidly growing business designing some of the most innovative and interesting applications for the marine industry. If you are a meticulous individual with a passion for working on cutting edge projects, this could be ideal for you.Senior Software EngineerMarine Defence applicationsPortsmouthPermanentRole OverviewWe are looking for a talented software engineer to...

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...

You will work closely with subject matter experts and senior stakeholders on high-impact programmes spanning modelling and simulation, autonomy, geospatial systems, synthetic environments and digital twins.

You will remain deeply technical while setting direction, leading teams and acting as the technical authority across projects.

Principal Software Engineer Salary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for principal software engineers with diverse experience. We are a small but rapidly growing consultancy, owned highly experienced and recognised practitioners in UK defence consultancy. We are looking for candidates with a mix of technical expertise and...

Job Description Job Title: SC Cleared Software Engineer Location: Farnborough, Malvern or Portsmouth Duration: 6 months with possible extension Rate: Up to £745.00 via an approved umbrella company Must be willing and eligible to go through the SC Clearance process Our client, a leading organisation supporting maritime test and evaluation facilities, is hiring for a talented Software Engineer to...

Cyber Software Vulnerability Engineer Package - £45,000 - £65,000 (depending in experience level) Benefits - DV Bonus plus excellent benefits Clearance - Clearable to eDV level, SC clearance required to start. Location - Hampshire, Surrey or London - hybrid working Join a trusted leader in National Security technology solutions. Do you enjoy solving technical cyber problems and identifying...

Senior/Lead Software Engineer – Fully Remote (UK) A global B2B SaaS technology business is building out its European engineering hub and is hiring multiple Senior / Lead Software Engineers (JavaScript) to develop and enhance a mission-critical platform used internationally. These are hands-on individual contributor role with strong ownership — ideal for engineers who enjoy building high-quality...

Software Engineer – £65,000–£85,000 + Equity – Remote (UK) - London office if preferred The Opportunity Join a fast-growing, AI-native software company building workflow automation tools used daily by thousands of professionals across people-heavy industries. The platform removes manual, repetitive work through AI, automation and thoughtful product design, helping teams move faster and focus...

Senior Software Engineer Salary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for senior software engineers with a range of levels of experience including designing and delivering software applications. We are a small but rapidly growing consultancy, owned by four highly experienced and recognised practitioners in UK defence consultancy....

You will work alongside experienced engineers, data scientists and subject matter experts on programmes covering modelling and simulation, autonomous systems, synthetic environments and digital twins.

You will stay close to the code while contributing ideas, shaping solutions and engaging directly with customers.

You will work under the guidance of the System Design Authority and interact very closely with the Software Development and Test teams within an Agile environment.

You will contribute to all stages of the modelling development lifecycle, engage in retrospective reviews and bring ideas to the table.

You will work under the guidance of the System Design Authority and interact very closely with the Software Development and Test teams within an Agile environment.

You will contribute to all stages of the modelling development lifecycle, engage in retrospective reviews and bring ideas to the table.

You will be trained to create or enhance your knowledge of V&V.