senior react developer jobs in Northern Ireland

MCS Group is delighted to be partnering with a leading global technology firm building a cutting-edge engineering hub in Belfast, focused on delivering innovative software solutions used worldwide. As part of an exciting growth phase, the Belfast office is seeking experienced Senior React Engineers to help design and develop next-generation web applications that drive critical business outcomes....

Principal React Engineer Location: Northern Ireland Remote First with optional office access Employment type: Permanent Salary: £85,000 to £100,000 Remote: Yes Overview This is a senior technical leadership role for an experienced React engineer who can set frontend direction, deliver high performance user interfaces, and mentor engineering teams. You will own frontend architecture, build...

Job Types: Full-time, Permanent Work Location: Remote (UK-based only) Salary: £50,000–£60,000 depending on experience About Us Asseticom is a dynamic software company specialising in asset management data capture solutions for the built environment. Our platform empowers global engineering consultancies, central government, and facilities management firms to optimise asset information through...

Senior Full-Stack Engineer – TypeScript / React / AWS Up to £80k | Fully Remote (UK) Tech Stack: TypeScript, Node.js, React.js, AWS Slight backend lean We're on the hunt for a hands-on Senior Engineer to join a fast-moving team delivering real, production grade systems. This isn't R&D or proof-of-concept work, they're shipping cloud-native, AI-enabled products that customers actually...

Gearset is the leading DevOps platform for Salesforce - our users can build and manage many aspects of their Salesforce development from within Gearset, from complex CI/CD pipelines to disaster recovery. The Gearset platform is a standalone tool that sits outside of the Salesforce platform, integrating via public APIs only. So while our engineering team doesn't develop within the Salesforce...

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...

About Prighter Prighter is a fast-growing LegalTech company building productised services and SaaS solutions for compliance with data protection as well as AI & digital governance regulations. With the mission to enable companies around the world to comply with regulatory requirements for their digital business, our services and SaaS solutions guide our global clients through the increasingly...

We are seeking a proactive full stack developer to drive the design and implementation of robust web applications. This role requires expertise in both frontend presentation layers and backend services architecture. - Translate complex business requirements into scalable technical specifications. - Design, deploy, and maintain robust APIs and microservices architectures. - Ensure seamless...

Job Description Senior Technical Analyst / Software Engineer / Software DeveloperLocation: Derry, Northern Ireland Working Model: Hybrid / 6-8 days per month in office About Alchemy At Alchemy, we specialise in technology implementation services; partnering with major insurance companies to drive their digital transformation journeys and address their most complex challenges. Our teams...

The Senior Development Officer will assist the Director/Senior Head of Development to ensure the Association builds houses to the highest possible standard whilst ensuring value for money. Ready to apply Before you do, make sure to read all the details pertaining to this job in the description below. Hours: 37 hours per week Location: Holywood Reference:FHA04395 Salary: £39,862 (SP29) - £45,091...

MCS Group is looking for a highly experienced Principal React Developer to lead the design and delivery of modern, scalable front-end applications. This is a hands-on role where you'll shape architecture, set best practice, and mentor engineers within a collaborative product-focused team. This is a key hire for this development team, and will be a position of technical influence within the...

Exclusive Ocho Partnership - React & TypeScript Developers -Multiple roles - Hybrid role 3 days in the office required. The Role: We are currently seeking a number of React & TypeScript Developers to join our team in Belfast. Following a $100 million investment and securing NASA as a client, our company is experiencing rapid growth. We are expanding into state-of-the-art offices in Belfast city...

Frontend Developer - React / TypeScript About the Role We're partnered with a well-established SaaS company delivering innovative Business solutions to customers across the UK, Ireland and beyond. The team has built a reputation for exceptional customer service, technical excellence, and a genuine commitment to work-life balance. They're now looking for a Frontend Developer (React) to join their...

MCS Group are thrilled to be partnered with a well-funded insurtech scale-up that has recently closed a major funding round and is entering an exciting new growth phase. Founded over a decade ago, the company has grown from early product innovation roots into a recognised player in the employee benefits space, providing dental, vision, and complementary insurance products to small and...

Senior Software Engineer (React, Typescript) Location: Belfast (3 days per week in office) Salary: 65-75k + bonus A global market infrastructure organisation is seeking a Senior Software Engineer to help shape the future of its digital platforms, delivering business-critical software for internal broking teams and external clients. You'll join a high-performing Agile engineering team working on...

MCS Group are thrilled to be partnered with a rapidly growing and highly respected software business delivering industry-leading solutions for customers across the UK and Ireland. Founded in recent years, the company has scaled quickly into a trusted, product-led organisation, supporting thousands of users through intuitive, reliable, and modern software platforms. Now part of a larger technology...

Principal Front-End Engineer (React) Experience level: 10+ years Have you spent years building front-end systems that scale - and now want a role where your decisions genuinely shape how products and teams operate? My client is looking for a Principal React Engineer to take ownership of front-end architecture, set engineering standards, and act as a technical authority across multiple product...

Senior .Net Developer Location: Belfast (Hybrid) | Type: Full-Time | Permanent A leading global technology firm is seeking a Senior Software Developer to help manage and evolve its mission-critical trading systems. This role involves building scalable systems that directly impact market access on a global scale. What you'll do? Develop, enhance, and maintain complex systems using C# (.NET Core),...

Mid to Senior .NET Developer - Omagh (Hybrid) Up to £60,000 (depending on experience) MCS Group is delighted to be working exclusively with a specialist software solutions provider currently entering an exciting period of growth as they scale their tight-knit engineering team heading into 2026. This is an exceptional opportunity to join a company where your voice matters, your expertise is...

Senior .NET Developer Full-time | Belfast | Hybrid Salary: £50,000 - £65,000 MCS Group is delighted to once again partner exclusively with a growing solutions provider as they continue to expand their talented development team. This company delivers cutting-edge software solutions to a diverse range of clients across the UK and beyond. They are now seeking an experienced Senior Developer to take...