Senior Software Engineer - Full Stack

Full Stack Engineer (.NET / React)

Belfast - Hybrid

Competitive Salary + Excellent Benefits

The Opportunity

MCS Group are delighted to be partnering with an established technology organisation as they seek to appoint a Frontend-Focused Full Stack Engineer to join their development team.

This is an exciting opportunity to join a well-established software business whose platform is used by organisations across the UK and internationally. The successful candidate will work on a suite of public-facing eCommerce websites, helping to enhance existing applications while contributing to the development of new functionality and modern user experiences.

This is a frontend-focused full stack position , ideal for an experienced C#/.NET developer who has a strong interest in modern web development and wants to spend a significant proportion of their time working with React, JavaScript, HTML and CSS , while continuing to contribute across the backend.

The Role

As a Frontend-Focused Full Stack Engineer , you'll work as part of a collaborative development team responsible for developing, maintaining and enhancing a portfolio of customer-facing web applications.

The role has a strong emphasis on frontend development and user experience , with React and modern JavaScript technologies forming an increasingly important part of the technology stack. You'll also use your C#/.NET experience to develop APIs, backend functionality and integrations where required.

Responsibilities will include:

• Developing and maintaining multiple public-facing eCommerce websites using modern frontend technologies
• Building responsive user interfaces using React, JavaScript, HTML5 and CSS, based on client and UI/UX specifications
• Developing reusable frontend components and contributing to the modernisation of existing web applications
• Developing and integrating REST APIs and backend functionality using C#/.NET
• Working with SQL Server and Entity Framework to support application functionality and data-driven features
• Applying SOLID principles, design patterns and best practices to produce clean, scalable and maintainable code
• Identifying and implementing improvements across existing systems, codebases and development processes
• Collaborating closely with Development, QA and Project Management teams to deliver high-quality software solutions

What You Need

• 3+ years' commercial experience with C# and .NET
• Strong frontend skills across JavaScript, HTML5 and CSS
• Commercial React experience or strong modern JavaScript experience
• Experience building responsive, customer-facing web applications
• Strong knowledge of OOP, SOLID principles and design patterns
• Experience with Microsoft SQL Server
• Ability to write clean, reusable and scalable code
• Strong analytical and problem-solving skills
• Excellent communication skills across technical and non-technical teams

Package & Benefits

• Hybrid working
• Competitive salary
• Opportunity to work on a globally used software platform
• Ongoing exposure to modern frontend and backend technologies

This is an excellent opportunity for an experienced C#/.NET Full Stack Developer who is increasingly frontend-focused and wants to play a key role in developing modern, customer-facing web applications.

You'll have the opportunity to use your existing backend expertise while placing React, JavaScript and modern frontend development at the heart of your day-to-day work , contributing to reusable components, improved user experiences and the continued evolution of a globally used software platform.

Interview Process

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