Senior Full Stack Engineer

Senior Full Stack Engineer - Fast-Growth SaaS Scale-Up
Belfast (1-2 Days in Office) | High Autonomy & Impact

MCS Group is proud to partner exclusively with a fast-growing, venture-backed tech start-up entering an exciting scale-up phase. With strong investment, a product already gaining global traction, and an ambitious roadmap ahead, we're now seeking a Senior Full Stack Engineer to help shape the future of our platform.

This isn't just another development role-it's your chance to make a tangible impact. You'll be building meaningful features, solving complex technical challenges, and directly influencing product direction in a high-trust, high-responsibility environment.

What You'll Do

• Design, build, and maintain high-quality features across backend and frontend systems

• Work closely with engineers, designers, and product managers in an agile, collaborative setting

• Take ownership of problems end-to-end, from discovery through delivery

• Contribute to architectural decisions and scalability planning

• Leverage innovation-including AI-to deliver creative, market-leading solutions

What We're Looking For

• Proven experience delivering full-stack applications in modern frameworks

• Someone who thrives in the fast-moving, dynamic world of start-ups and scale-ups

• Passion for building and scaling SaaS products

• Adaptable, tech-agnostic mindset-able to quickly pick up new tools, languages, and frameworks

• Excitement about AI and its potential to transform product development

• Experience in CI/CD workflows and cross-functional agile teams

Why Join Us

• Impact from Day One: High ownership and the ability to shape the product and the company's direction

• Innovation-First Culture: Work with cutting-edge technologies in a team that embraces experimentation

• Growth Phase Opportunity: Be part of a rapidly scaling product with global reach

• Competitive salary up to £85K + private healthcare

• Mission-driven team with a supportive, collaborative culture

If you're an engineer who loves tackling new challenges, experimenting with emerging technologies, and making a real difference in a fast-paced, high-growth environment-this is where you belong.

To speak in absolute confidence about this opportunity, please send an up-to-date CV via the link provided or contact Matthew Rainey, Specialist Tech Recruiter, at MCS Group on +442896935514.

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