.net software engineer jobs in Newcastle upon Tyne

Backend Software Engineer / Developer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a backend focussed Software Engineer with a first class education looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role? You could be joining a FinTech scale-up that has secure backing, an established Hedge Fund client as a partner and ambitious...

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 Find out more about the daily tasks, overall responsibilities, and required experience for this opportunity by scrolling down now. 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...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

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 a strong match if you bring:

Junior Developer Fully Remote within UK C# / .Net/ ASP.NET £30,000-£40,000 I've recently partnered with a growing Security Tech business who are based in Bristol and looking to add a Junior Developer to their growing team on a fully remote basis within the UK! The company have been going for over 10 years and have built market leading solutions all aimed at minimising risk factors and...

Embedded Software Engineer Newcastle upon Tyne £45,000 – £65,000 + Benefits KO2 are proud to be partnering with an innovative client in Newcastle upon Tyne, as they continue to expand their engineering team through 2025. This is an exciting opportunity for an Embedded Software Engineer to work on the development of cutting-edge products across multiple industries. The Role As an Embedded...

Job Description Senior Real-Time Software Engineer Hybrid, Newcastle We’re hiring on behalf of a leading engineering organisation working at the cutting edge of defence technology. This newly created role sits within a multi-disciplinary R&D team solving complex, real-world problems through robotics, automation and intelligent systems. If you’re a software engineer who wants to see your code...

Job Description Role: Robotics Software Engineer Location: Newcastle (Hybrid Working Available) Salary: £40,000 – £60,000 + Bonus + Excellent Benefits Shape the Future of Robotics – Join a Leading Innovation Team in Newcastle! KO2 Recruitment is proud to partner with a world-class robotics company designing and developing advanced robotic systems used across global industries. Due to...

Want to join a modern, ambitious tech-driven business where you can own your projects , influence future architecture, and work with a cutting-edge tech stack ? If you're a Full Stack .NET Developer passionate about building high-quality software and want real career progression, this role is for you! This is a hybrid working model where the expectation is to come in 2-3 times per week to the...

You will also gain access to: - Industry-recognised certifications - Project-based learning with experienced engineers - Over £1bn globally invested each year in learning & development - Coaching, mentoring and shadowing opportunities - Clear route into specialist areas once you find your niche

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 should also expect to work across the full stack and every stage of the product lifecycle, from system design through to build, test, deployment and supporting systems in production, so you should be skilled in practices like TDD, CI/CD, IaC and Observability.

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...

You should be comfortable with most of our core technologies:

I'm partnered with an early-stage, post-revenue AI startup is building an end-to-end operating system to help businesses detect and resolve complex B2B issues before they become costly or disruptive. The product is already being used by large enterprises across multiple industries, and demand is growing fast - hence this hire! Backed by a top-tier European venture fund, the company is tackling a...

Job Description Graduate Software Engineer / Developer *Newcastle onsite* £33k+ - Start March 2026 Are you a bright, ambitious technologist with a top class education looking for an opportunity to join a tech start-up? You could be progressing your career at a rapidly growing Fintech that have secure backing and an established Hedge Fund client as a partner, gaining valuable financial trading...

Job Description Embedded Software Engineer Newcastle upon Tyne £45,000 – £65,000 + Benefits KO2 are proud to be partnering with an innovative client in Newcastle upon Tyne, as they continue to expand their engineering team through 2025. This is an exciting opportunity for an Embedded Software Engineer to work on the development of cutting-edge products across multiple industries. The...