Backend Software Engineer Location: Southampton Clearance: SC Clearance To Apply: Email - poppy.coutts@searchability.com Overview A growing technology organisation within the National Security sector is seeking a Backend Software Engineer to support the delivery of secure, mission-critical solutions for government and defence customers. This is an opportunity to work across cutting-edge programmes involving cloud, DevOps, AI, cyber, and platform engineering technologies. You'll join a collaborative engineering team developing high-performance backend systems that support critical operational capabilities. Key Responsibilities Design, develop, test, and deploy secure backend software solutions Write clean, scalable, and high-performance code using Go and/or Python Deploy containerised applications into Kubernetes environments using Helm and ArgoCD Translate solution designs into detailed technical implementations Support Agile delivery processes including sprint planning, stand-ups, reviews, and demos Produce technical documentation and contribute to engineering best practices Monitor, maintain, and improve deployed systems and services Required Skills & Experience Commercial experience developing software in Go or Python Strong understanding of DevOps practices and tooling Experience with Docker, Kubernetes, Helm, and CI/CD pipelines Familiarity with ArgoCD and Git-based deployment workflows Understanding of Agile software development methodologies Strong problem-solving and communication skills Desirable Skills Experience with Redis Familiarity with monitoring tools such as Prometheus, Grafana, or Thanos Knowledge of messaging systems such as Kafka, NATS, or Qpid Experience with Linux networking concepts Exposure to AWS cloud technologies Familiarity with automated testing frameworks Benefits Competitive salary and benefits package Flexible and collaborative working environment Ongoing professional development and training support Opportunity to work on innovative and impactful secure technology programmes Long-term project work with modern engineering technologies