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: React.js (Hooks, Context API) TypeScript Redux Cypress, JestBackend: Java 11 Spring Boot RESTful APIs Microservices PostgreSQL KafkaCloud & 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 | OC(phone number removed) England and Wales