Senior Developer (Python and React)

MCS Group delighted to be working with an innovative and rapidly growing technology organisation as they look to appoint a Senior Software Developer to join their expanding engineering team in Belfast.

This is an excellent opportunity for an experienced engineer who enjoys working across complex systems, influencing technical direction, and building scalable software solutions within a modern, collaborative development environment.

The successful candidate will play a key role in architecture, solution design, and hands-on development across both backend and frontend technologies, helping deliver robust, high-performing platforms used across a large operational environment.

The Role

• Lead the design and delivery of scalable software solutions from concept through to deployment
• Contribute to architecture decisions and technical strategy across multiple systems
• Develop backend services primarily using Python, alongside Go for performance-focused services
• Build modern frontend applications using React, JavaScript, and TypeScript
• Design and integrate RESTful APIs and authentication flows
• Work within cloud-hosted environments across Azure and AWS
• Collaborate closely with engineering teams and wider business stakeholders
• Mentor and support other developers within the team

Tech Environment

You'll be working across a modern engineering stack including:

• Backend: Python, Go
• Frontend: React, JavaScript, TypeScript
• REST APIs & OAuth
• PostgreSQL & MySQL
• Azure & AWS Cloud Platforms.

What We're Looking For

• Strong full-stack development background
• Strong understanding of scalable architecture and software design principles
• Experience building APIs and cloud-based systems
• Strong frontend development experience with React and TypeScript
• Excellent communication and stakeholder engagement skills
• Previous experience mentoring or supporting developers is advantageous

What's On Offer

• Competitive salary and comprehensive benefits package
• Hybrid working model
• Opportunity to work with modern technologies and cloud platforms
• Strong career progression opportunities
• Collaborative engineering culture with real technical ownership
• Exposure to large-scale and impactful software projects

To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact Matthew Rainey at m.rainey@mcsgroup.jobs

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 www.mcsgroup.jobs

MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request.

Not all agencies are the same…MCS Group are passionate about providing a first-class service to all our customers and have an independent review rating of 4.9 stars on Google.