Senior Software Engineer - Full Stack

Full Stack Engineer (.NET / React)

Belfast - Hybrid (3 Days Office / 2 Days Home)

Competitive Salary + Excellent Benefits

The Opportunity

We are delighted to be partnering with a leading technology organisation as they seek to appoint a Full Stack Engineer to join their growing engineering team.

This is an exciting opportunity to join an established software business currently undertaking a large-scale modernisation programme, migrating a portfolio of public-facing web applications from legacy technologies to a modern React-based architecture.

The successful candidate will join a collaborative development team working on the evolution of an established component library and helping deliver scalable, high-quality web applications. This role offers the opportunity to work across both backend and frontend technologies while contributing to long-term product improvements and modern engineering practices.

The Role

As a Full Stack Engineer, you will work as part of a close-knit development team responsible for delivering and maintaining modern web applications used by a wide customer base.

You'll primarily work with C#/.NET on the backend while contributing to React-based frontend development, collaborating closely with experienced engineers to build reusable components, improve development efficiency and support the ongoing migration to modern technologies.

Responsibilities will include:

• Developing and maintaining full stack web applications using C#/.NET and React
• Contributing to the ongoing migration of legacy applications to modern technologies
• Building and enhancing reusable React components and frontend functionality
• Developing scalable backend services and APIs
• Working closely with developers and technical leads to deliver high-quality software solutions
• Writing clean, maintainable and well-tested code
• Supporting continuous improvement across development processes and engineering practices
• Collaborating with the wider engineering team on technical design and solution delivery

What You Need

• 3+ years commercial experience developing applications using C#/.NET
• Exposure to React or a strong desire to develop React expertise
• Experience working across both backend and frontend development
• Knowledge of JavaScript, HTML and CSS
• Experience working with SQL databases
• TypeScript experience would be advantageous
• Strong problem-solving and communication skills
• Passion for building modern, scalable software solutions

Package & Benefits

• Hybrid working model
• Excellent career progression opportunities
• Exposure to modern technologies and large-scale digital transformation projects
• Collaborative and supportive engineering culture
• Ongoing learning and professional development

This is an excellent opportunity for a Full Stack Engineer with strong .NET experience looking to further develop their React skills while joining a collaborative engineering team delivering modern web applications and contributing to a significant technology transformation programme.

Interview Process

• Single-stage, in-person interview
• Short technical exercise covering JavaScript, SQL, C#, CSS and HTML
• Technical interview with senior engineering leadership

To speak in absolute confidence about this opportunity please contact Sam McCormick or send an up-to-date CV via the link provided.

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We are committed to providing reasonable accommodation to individuals with disabilities throughout the recruitment process. Please let us know if you require any adjustments

Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles

Skills:
react .net c# front end full stack software engineer

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