Principal Java Engineer - Lead Secure Cloud Systems Remote

NPAworldwide; Walton Cardiff; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A mission-led consultancy in Walton Cardiff is seeking a Principal Software Engineer (Java) to lead the development of secure, scalable software solutions for the UK Government. This senior-level role offers flexible working options and requires deep Java expertise along with strong full-stack engineering skills. You will drive DevOps practices and mentor engineers within a collaborative environment focused on delivering impactful solutions.

Benefits

Flexible working

Learning & development budget

Private healthcare

Matched pension scheme

Clear career progression

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.
• Familiarity with DevOps tools and automation (CI/CD, containers, IaC).
• Track record of delivering secure, production-grade systems in agile teams.

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 – CI/CD, containers, infrastructure-as-code.
• Guide and mentor engineers, promoting best practice and agile delivery.
• Collaborate with stakeholders to shape technical direction and ensure robust solutions.

Skills

Java

Full-stack engineering

DevOps tools

Stakeholder engagement

Job description

A mission-led consultancy in Walton Cardiff is seeking a Principal Software Engineer (Java) to lead the development of secure, scalable software solutions for the UK Government. This senior-level role offers flexible working options and requires deep Java expertise along with strong full-stack engineering skills. You will drive DevOps practices and mentor engineers within a collaborative environment focused on delivering impactful solutions.