.net software engineer jobs in Warrington

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 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:

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...

Principal Software Developer – Manchester (central) 3 days a week in office with flexible start/finish – strong benefits – up to £90,000 (flexible for the right person) I'm working with a high‐growth tech business looking for a Principal Software Developer to take a leading, hands‐on role across their platform. You'll design and deliver complex features, shape architectural decisions, and drive...

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# .

Engineering Director – Technology Innovation £100,000–£120,000 + Package Manchester | 3 days on-site Our client is a pioneering software scale-up reshaping the tech landscape within their sector. Already powering customers across the UK and US, their intelligent SaaS platform enables organisations to streamline operations, unlock efficiency, and scale with confidence. With major new...

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 spend most of your time working with our clients and Account Managers to deliver a high-quality scalable application. Working within out Talos Development Team you will leverage your expert knowledge to deliver solutions that delight our customers, focusing on new projects, and take on a mentoring/lead role with more junior members of the team.

Lead Software Developer (.NET) Chester (Hybrid ) £65,000–£70,000 Ready to step up and lead a strong .NET team through a real tech transformation? We're looking for a Lead Software Developer to guide a capable team of mid-to-senior devs working on a mission-critical booking and reservations platform used across multiple brands. It's the backbone of the business — and it's evolving fast. With...

You will have knowledge of software development and some exposure to mentoring junior Engineers would be a benefit.

You will be happy solving technical problems for customers even if this means working with new technologies. They have a vast array of already built products so candidates will have a lot of working product source code to help get started.

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...

Job Description An innovative and leading tech company based in the Cheshire area is looking for an Embedded Software Engineer. Were looking for an experienced engineer thats comfortable working down at bare metal as well as through operating systems. Youll be joining a company that offers their employees a strong work life balance, challenging projects and overall, a strong remuneration...

You will be someone who pushes commercial value and helps improve team values. You relish the opportunity to work with like minded people, helping influence and reinforce value through data-driven decision making.

You will champion new technologies when it's right for the business.

You will have knowledge of software development and some exposure to mentoring junior Engineers would be a benefit.

You will be happy solving technical problems for customers even if this means working with new technologies. They have a vast array of already built products so candidates will have a lot of working product source code to help get started.

You should be comfortable with most of our core technologies:

Principal Software Engineer .NET £90,000-£110,000 Remote (UK) Do you thrive on building scalable solutions that power commerce worldwide? We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built on quality, resilience, and scale - and they need exceptional .NET Software Engineers to...

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...

Senior Software Engineer in Test Enterprise SaaS Platform | Manchester | Hybrid (2 days onsite) Salary: up to £70,000 + 10% bonus The Opportunity This is a chance to join a high-growth, enterprise SaaS organisation building complex, high-throughput platforms used at scale across the UK and Europe. Quality Engineering is treated as a core engineering discipline, not a support function. As the...

SOFTWARE ENGINEER REMOTE (OPTION TO RELLOCATE) £110K + EQUITY THE COMPANY This innovative AI startup is redefining safety and reliability in AI models. While competitors like GPT and DeepMind struggle with hallucinations and illegal content generation, this company adds safety control layers to ensure AI outputs are trustworthy and compliant. Working with high-profile, they're building AI...

You will work closely with hardware, systems, verification, and regulatory teams, playing a central role in delivering products for hospitals, critical care wards, and frontline clinical environments. This is a key role within a growing medical device organisation, where your decisions will directly influence both product performance and patient outcomes.