Principal Java Engineer

ViVA Tech Talent; Belfast; On-site; GBP 70,000 - 100,000; Full time

Job summary

A fast-growing technology scale-up is seeking a Principal Java Engineer to lead the backend evolution, transitioning from a legacy monolith to scalable microservices. The ideal candidate will have extensive Java experience and a passion for technical excellence in a collaborative environment.

Benefits

Base salary up to £95k plus bonus and share scheme

Opportunity to lead in a well-funded scale-up

Collaborative engineering culture

Qualifications

• 6-10+ years of hands-on Java development.
• Deep expertise in building and deploying microservices.
• Proven ability to lead technically in architectural decisions.

Responsibilities

• Architect and build high-performance Java-based microservices.
• Lead the technical transformation of core systems.
• Mentor engineers and champion technical excellence.

Skills

Java development

Microservices

Distributed systems

System design

Cloud infrastructure

Job description

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This range is provided by ViVA Tech Talent. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from ViVA Tech Talent

We’re working with a fast-growing technology scale-up that’s building next-generation, real-time software products used across complex, high-impact environments.

They’re now hiring a Principal Java Engineer to take ownership of their backend evolution as they transition from a legacy monolith to a scalable, event-driven microservices architecture.

What You’ll Do

• Architect and build high-performance Java-based microservices
• Lead the technical transformation of core systems from monolith to distributed architecture
• Work cross-functionally with product, design, and platform teams to translate business goals into scalable backend solutions
• Mentor engineers, shape coding standards, and champion technical excellence across the team
• Balance short-term delivery with long-term platform stability and innovation

What You Bring

• 6–10+ years of hands-on Java development experience
• Deep expertise in building and deploying microservices within event-driven systems
• Strong understanding of distributed systems, system design, and cloud-first infrastructure
• Experience modernizing legacy platforms
• Proven ability to lead technically and influence architecture, tooling, and process decisions
• A pragmatic mindset — someone who balances innovation with maintainability

What’s On Offer

• Base salary up to £95k plus bonus and share scheme
• An opportunity to lead and shape foundational systems in a well-funded, product-focused scale-up
• A collaborative, forward-thinking engineering culture that values autonomy and impact

Ready to architect real change in a high-growth environment?

Apply now or reach out for a confidential conversation - contact Carol on [e-mail]

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Staffing and Recruiting

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