Senior Java Architect (Remote) – Secure, Cloud-native Systems

NPA WorldWide; Cardiff; Hybrid; GBP 75,000 - 95,000; Full time

Job summary

A mission-led consultancy in the United Kingdom is seeking an experienced Principal Software Engineer (Java) to shape and deliver secure, modern software solutions for UK Government and Defence sectors. This is a senior role combining technical leadership and hands-on development in agile environments, with a focus on best practices and mentoring. Offers competitive salary, flexible working options, and a commitment to diversity and inclusion.

Benefits

Flexible working

Learning & development budget

Private healthcare

Matched pension scheme

Monthly socials

Quarterly company meetups

Qualifications

• Deep expertise in Java, with strong full-stack engineering skills.
• Proven experience leading teams or projects at a senior/principal level.
• Strong knowledge of system architecture, cloud solutions, and API design.

Responsibilities

• Lead the design, development, and testing of secure, scalable systems using Java.
• Architect and maintain APIs, data pipelines, and cloud-native solutions.
• Drive adoption of DevOps practices to improve engineering efficiency.

Skills

Java

Full-stack engineering

DevOps tools

Stakeholder engagement

Education

Relevant engineering degree or equivalent experience

Tools

AWS

Azure

Containers

CI/CD

Job description

A mission-led consultancy in the United Kingdom is seeking an experienced Principal Software Engineer (Java) to shape and deliver secure, modern software solutions for UK Government and Defence sectors. This is a senior role combining technical leadership and hands-on development in agile environments, with a focus on best practices and mentoring. Offers competitive salary, flexible working options, and a commitment to diversity and inclusion.