Sr. Software Engineer

Leidos is seeking a Senior Software Engineer to support a long-term DIA-NDOC DOMEX Technology Platform contract. This on-site role in Maryland centers on building Python microservices, interfacing with Kafka and Elasticsearch, and deploying in Kubernetes within a TS/SCI environment. The position emphasizes collaborative delivery of reliable, mission-critical software through disciplined engineering practices.

Responsibilities

• Design, build, test, and maintain Python microservices
• Create Kafka-based message consumers and producers
• Integrate Elasticsearch for real-time and batch data indexing and querying
• Develop unit and integration tests to achieve strong code coverage and reliability
• Develop CI/CD pipelines and deploy services to Kubernetes clusters
• Engage in design discussions, code reviews, and architecture planning
• Monitor and troubleshoot production issues using observability tooling
• Document technical work and share knowledge within the team
• Apply software engineering methodologies appropriate to development, integration, and production environments
• Foster collaboration across team members to deliver high-quality services and products

Requirements

• Bachelor’s degree with 6 to 10 years of relevant experience, or a Master’s degree with 4 to 8 years of relevant experience
• Active Top Secret/SCI clearance with the ability to obtain and maintain a polygraph
• Proficiency in Python and backend frameworks such as FastAPI or Flask
• Experience with containerization, notably Docker
• Experience with ETL processes
• Hands-on Linux development experience including bash or similar scripting
• Strong understanding of RESTful APIs and microservice architecture
• Hands-on Kubernetes experience including deploying, monitoring, and debugging services
• Understanding of common design patterns, security practices, and logging/monitoring principles
• Familiarity with Git and collaborative workflows (PRs, code reviews)
• Experience with DevOps practices and CI/CD tools, especially GitLab or Jenkins
• Strong verbal and written communication skills
• Experience with Agile practices
• Self-starter with the ability to work well in a team and independently

Technologies

• Python
• FastAPI
• Flask
• Apache Kafka
• Elasticsearch
• Docker
• Kubernetes
• Linux
• bash scripting
• RESTful APIs
• Git
• GitLab
• Jenkins
• AWS
• DGX (Deep GPU Xceleration)

Benefits

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

Role details

• Location: Maryland (onsite)
• Salary: USD 107,900 - 195,050 per year
• Experience: Bachelor's degree with 6-10 years of relevant experience or Master's degree with 4-8 years
• Education: Master's degree
• Clearance: Active Top Secret/SCI with ability to obtain and maintain a polygraph