Senior Platform Engineer

We are seeking a highly skilled Senior Platform Engineer to play a key role in designing, developing, and deploying cutting-edge, secure systems that support critical UK Government and National Security projects.

In this senior role, you'll take ownership of technical decisions, mentor junior engineers, and ensure the delivery of robust, scalable platforms. You'll work across the full software lifecycle - from design and build to deployment and optimisation - using modern engineering practices, tools, and cloud technologies.

This position is ideal for an experienced engineer who enjoys solving complex challenges, driving innovation, and shaping the future of platform engineering in mission-critical environments., * Design, develop, and maintain secure and reliable platforms that meet demanding operational needs.

• Lead on technical design decisions, ensuring performance, security, and scalability.
• Build and maintain CI/CD pipelines using tools such as Jenkins, Bamboo, or Bitbucket.
• Write clean, maintainable, and efficient code in one or more languages (e.g. Python, Java, JavaScript, or .NET).
• Implement automated testing, code reviews, and quality assurance practices.
• Lead Agile delivery practices, contributing to sprint planning and retrospectives.
• Collaborate with architects, developers, and DevOps engineers to ensure seamless integration and deployment.
• Contribute to infrastructure automation and containerisation using Docker, Kubernetes, or Ansible.
• Mentor and support junior team members, fostering a culture of technical excellence.

• Proven experience in platform or software engineering within complex environments.
• Hands-on experience with cloud technologies (AWS, Azure, or GCP).
• Strong background in DevOps principles, automation, and CI/CD.
• Familiarity with infrastructure-as-code tools such as Terraform or Ansible.
• Experience with containerisation and orchestration technologies.
• Understanding of modern software architecture patterns and microservices.
• Excellent problem-solving and communication skills, with the ability to engage technical and non-technical stakeholders.
• Eligible for UK Security Clearance (DV).

• Competitive salary £65,000 - £80,000 + 10% bonus.
• Work on high-impact, mission-critical projects within Government and National Security.
• Collaborative, innovative culture with opportunities to learn and grow.
• Hybrid working model with flexibility to balance work and life.
• Excellent training, mentorship, and career progression opportunities.