Principal Software Engineer

1 week ago

London, Greater London, United Kingdom Computer Futures Full time £60,000 - £100,000 per year


Principal Software Engineer - Lead the Future of UK GovTech Innovation


Up to £100,000 + Premium Benefits Package

Remote-First | Just 1 Day Onsite Every 2 Weeks

SC Clearable | British Citizens Only


Where Technology Meets Purpose

Are you ready to lead engineering efforts that directly impact national security, public services, and digital transformation across the UK? This is more than just a job-it's a chance to
build technology that matters
, in a space where innovation meets mission-critical delivery.

We're looking for a
Principal Software Engineer
to join a high-performing team at the forefront of UK GovTech. You'll architect secure, scalable platforms, mentor elite engineers, and shape technical strategy across programmes that serve millions of citizens and protect national interests.


Your Mission

As a Principal Engineer, you'll be a technical leader, strategic thinker, and hands-on problem solver. You'll work closely with delivery teams, stakeholders, and government partners to ensure solutions are robust, secure, and future-proof.

What You'll Be Doing:

  • Architect cloud-native platforms
    using modern design patterns and best practices.
  • Define and drive technical strategy
    across multiple Agile teams and projects.
  • Mentor and coach engineers
    , fostering a culture of excellence and continuous improvement.
  • Engage with stakeholders
    to translate complex requirements into elegant, scalable solutions.
  • Deliver full-stack innovation
    with real-world impact-from citizen-facing services to secure backend systems.


Your Tech Toolkit

You'll be working with a modern, enterprise-grade tech stack designed for scale, resilience, and agility.

Frontend:

  • (Hooks, Context API)
  • TypeScript
  • Redux
  • Cypress, Jest

Backend:

  • Java 11+
  • Spring Boot
  • RESTful APIs
  • Microservices
  • PostgreSQL
  • Kafka

Cloud & DevOps:

  • AWS (EKS, MSK, Opensearch)
  • CI/CD with Jenkins
  • Monitoring with CloudWatch, Kibana


Why You'll Love Working Here

This isn't just a role-it's a career accelerator. You'll be part of a mission-driven organisation that values innovation, autonomy, and impact.

Perks & Benefits:

  • Remote-First Culture
  • Work from anywhere in the UK, with just one day onsite every two weeks.
  • Flexible Hours
  • Shape your schedule with TOIL (Time Off In Lieu) options.
  • Career Development
  • 5 paid training days annually + access to dedicated career coaching.
  • Cutting-Edge Tech
  • Work with the latest in cloud, DevOps, and full-stack engineering.
  • Premium Package
  • Up to £100K salary + comprehensive benefits.


Security Clearance Requirement

Due to the nature of the work, applicants must be
British Citizens
and have lived in the UK continuously for the past
5 years
to qualify for
SC Clearance
.


Lead Tech That Shapes the Nation

This is your opportunity to be at the helm of transformative technology projects that serve the public good. If you're passionate about engineering excellence, strategic leadership, and making a real-world impact-this is the role for you.


Ready to Lead the Future of UK GovTech?

Apply now and become the driving force behind innovation that matters.

To find out more about Computer Futures please visit

Computer Futures, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales

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