Sr. Software Engineer - TS/SCI Poly required with Security Clearance

Senior Software Developer – Kubernetes‑Native Platform Location: Columbia, MD Clearance Required: TS/SCI with Polygraph Telework: Based on tasking About the Role We’re looking for a Senior Software Developer to take technical ownership of a Kubernetes‑native application that orchestrates and deploys workloads directly within its own cluster. You’ll help evolve a modern platform built on containerized microservices, cloud‑native components, and a clean, web‑based UI/UX. This role is perfect for someone who thrives in distributed systems, enjoys working across backend and frontend technologies, and values collaboration across multiple engineering teams. What You’ll Work On * Advancing a Kubernetes‑native orchestration platform * Designing and developing backend services in Go, Python, and cloud‑native architectures * Building and enhancing frontend components using TypeScript, HTML, and CSS * Working with containerized microservices and orchestration tools such as Docker, RKE2, and Helm * Implementing GitOps workflows using ArgoCD * Integrating event‑driven systems and message brokers like Kafka * Contributing to system design, RESTful API development, and microservice architecture * Collaborating with multiple teams to ensure operational excellence * Maintaining and improving documentation and internal development standards Basic Qualifications * 10+ years of software development experience, with a strong focus on backend and cloud‑native applications * TS/SCI with Polygraph * Experience with: * Hardware and software integration * Infrastructure and provisioning * Ansible configuration management * Kubernetes, cloud technologies, and Rancher * Containers‑as‑a‑Service (CaaS) environments * Proficiency in Go (Golang) for production‑grade services * Experience building modern frontends with TypeScript, HTML, and CSS * Strong understanding of: * Kubernetes, Helm, GitOps (ArgoCD) * Event‑driven architectures and Kafka * Docker and container orchestration * System design, RESTful APIs, and microservices * SQL databases in containerized environments * Excellent debugging, problem‑solving, and communication skills Preferred Qualifications * Familiarity with the Atlassian Suite (Jira, Bamboo, Fisheye) * Experience with Agile development and Continuous Integration * Linux/UNIX administration experience * Knowledge of SIGINT systems and dataflows * Experience with: * Kafka, NiFi, MetalLB, MinIO * Infrastructure‑as‑code (cloud‑init, Terraform) * CI/CD pipelines and Git‑based workflows * Observability tools (Prometheus, Grafana) * Rancher Suite (Harvester, Longhorn, KubeVirt) * AWS services (EKS, S3, Lambda, RDS) * Ability to work effectively in a team environment * Commitment to maintaining and improving documentation and development standards