Principal Software Engineer (Java)

MCS Group; Belfast; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

MCS Group is seeking a Principal Java Developer for a fast-growing tech company to architect and build scalable applications. This role involves leading a high-performing team, mentoring junior engineers, and shaping best engineering practices in a dynamic environment. The position offers significant growth opportunities and a competitive salary package including bonuses and flexible working.

Benefits

Salary up to £90,000

Bonus scheme (10%)

Share options

Flexible hybrid working

Huge opportunity for growth and progression

Qualifications

• Deep experience with Java (latest versions) required.
• Strong knowledge of Spring Boot and microservices necessary.
• Leadership skills and passion for mentoring advocated.

Responsibilities

• Architect and build complex, scalable applications using Java and AWS.
• Set and uphold engineering standards across the team.
• Mentor junior engineers and foster continuous learning culture.

Skills

Java

Spring Boot

Microservices

Event Driven Systems

Problem Solving

Job description

MCS Group is thrilled to be partnering with a fast-growing, forward-thinking tech company that's building a globally-used product utilised across multiple industry sectors. With significant investment secured and major scaling plans already underway for 2025, they're looking for a Principal Java Developer to play a pivotal role in the evolution of their core software platform.

As their Principal Java Engineer, you'll join a small yet collaborative, high-performing software engineering team and take ownership of a critical product area. You'll be at the forefront of architecture and development while mentoring the next generation of software talent and less experienced software engineers -all under the guidance (and support) of a visionary Head of Engineering and CTO.

If you're looking for a role where you can lead, innovate, and make a real impact, this could be the move for you.

Why You Should Apply:

• Be part of a compact, agile team that punches well above its weight

• Lead in a fast-paced environment where your ideas and impact will be visible

• Shape best practices and push cloud-native solutions forward

• Enjoy fast-tracked career progression in a well-funded business which is scaling

What You'll Be Doing:

• Architect and build complex, scalable applications using modern Java and AWS services

• Set and uphold engineering standards across the team

• Collaborate closely with product and hardware teams to deliver secure, high-performance systems

• Mentor and support junior engineers, fostering a culture of continuous learning

• Stay at the cutting edge-bring new ideas, tools, and methods into the team

What We're Looking For:

• Deep experience with Java (latest versions), Spring Boot, and microservices

• Strong hands-on knowledge of event driven systems

• Experience of working in scaling tech companies and/or product-focused tech start-ups will be highly advantageous

• Natural leadership skills with a passion for mentoring and team development

• A problem-solver with a drive for clean, modern software engineering

What's in it for You:

• Salary up to £90,000

• Bonus scheme (10%)

• Share options

• Flexible hybrid working (2 days in office per week)

• Huge opportunity for growth and progression

To speak in absolute confidence about this opportunity, please send an up-to-date CV via the link provided or contact Chris Busby, Associate Director - IT Recruitment UK & Ireland, at MCS Group

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

All conversations will be treated in the strictest of confidence.