Principal Software Engineer, Java | £100k – £115k + Bonus | Fully Remote

Adepta Partners Limited; Belfast; Remote; GBP 100,000 - 115,000; Full time

Job summary

A leading tech company is seeking a Principal Software Engineer with strong Java skills to design and develop scalable backend services. Enjoy unlimited holiday, a flexible remote culture, and opportunities for growth. Ideal candidates will have 8-10 years of software engineering experience and a BS/MS in Computer Science. Join a team where you can lead and innovate in a supportive environment.

Benefits

Unlimited holiday

Learning budget of up to £5,000/year

Flexible working culture

Work-from-home allowance of £60/month

Growth opportunities

Qualifications

• 8 - 10 years’ software engineering experience.
• Experience in server-side development with OO languages (Java, C#).
• Strong analytical and problem-solving skills.

Responsibilities

• Design, build, and maintain scalable backend systems using Java.
• Develop APIs and microservices for payment processing.
• Collaborate with teams to deliver high-quality results.

Skills

Software engineering experience

Java expertise

Problem-solving skills

Communication skills

Teamwork

Education

BS/MS in Computer Science or related

Tools

Linux

Windows

HTML

JavaScript

CSS

Job description

Overview

Principal Software Engineer, Java | £100k – £115k + Bonus | Fully Remote

Location: Northern Ireland (Fully Remote)

Salary: £100k - £115k (depending on experience)

Type: Full-time, Permanent

We’re working with a cutting-edge development centre building innovative payment solutions, and they’re hiring Principal Software Engineers, Java.

About the Role

As a Principal Software Engineer, you’ll design and develop backend services and portal systems that power modern payment platforms. You’ll work across a range of technologies, applying best practices and contributing to projects of all sizes.

What’s on Offer

• Unlimited holiday and fantastic benefits
• Learning and development budget of up to £5,000/year
• No micromanagement - freedom to set your own goals and pace
• Access to cutting-edge tech and talented colleagues
• Flexible working culture - fully remote, with optional social events in the UK, US, and Belfast
• £60/month work-from-home allowance
• Growth opportunities in a rapidly expanding organisation
• Strong engineering leadership, with room for progression

Key Responsibilities

• Design, build, and maintain scalable backend systems using Java
• Develop APIs and microservices to support payment processing and integrations
• Understand and address merchant/partner needs with valuable solutions.
• Improve development processes, tools, and automation.
• Collaborate to deliver accurate, high-quality, and timely results.
• Identify key project tasks, assist with planning, and communicate status.
• Support software deployment from requirements to release.
• Be proactive, detail-oriented, and work well under pressure.
• Demonstrate teamwork, professionalism, and strong work ethics.

Skills & Experience

• 8 - 10 years’ software engineering experience
• BS/MS in Computer Science or related
• Linux/Windows, database, and web (HTML, JS, CSS) skills
• Server-side development; OO language expertise (Java, C#, etc.)
• Design patterns, refactoring, and systems integration
• Strong analytical and problem-solving skills
• Able to lead, coach, and translate business needs
• Proactive, detail-oriented, and adaptable
• Effective communicator and team player

Interested?

Apply now or get in touch!