Senior Software Engineer

Peraton • Laurel, MD

37d

About The Position

Senior Software Engineer – Cyber MissionsLocation: Laurel, MD
Join Peraton’s high-impact Cyber Missions Team and help build mission-critical capabilities that directly support national-level cybersecurity operations. We’re looking for a Senior Software Engineer who is passionate about solving complex problems, creating scalable systems, and shaping innovative solutions using cutting-edge cloud and AI technologies.
In this role, you’ll be a key contributor on an integrated product development team, driving the full lifecycle of agile software design and development. You’ll help design, build, test, and deploy a full-featured service running across large-scale compute clusters and AWS cloud infrastructure while continuously improving performance, reliability, and user experience.
What You’ll Do
Lead and support all phases of agile software development, including design, development, testing, integration, and deployment
Build and optimize distributed systems running at scale across AWS and high-performance compute clusters
Apply advanced AI techniques—such as LLMs, RAG, and agentic AI—to enhance system capability and automation
Improve performance, reliability, and scalability through tuning, monitoring, and observability best practices
Support ongoing operations, sustainment, and enhancement of mission-critical services
Mentor junior engineers, provide technical guidance, and contribute to architectural decision-making
Evaluate technical requirements, estimate effort, and create high-quality designs and documentation
What You Bring
You’re an engineer who brings independence, curiosity, and technical rigor to every challenge. You thrive in collaborative environments, communicate clearly, and know how to balance performance, cost, resilience, and scalability. You’re able to diagnose complex issues, craft elegant solutions, and elevate the work of those around you.
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Requirements

• Hands-on experience with LLMs, RAG frameworks, and agentic AI systems
• Deep understanding of AWS cloud architecture, services, SDKs, and APIs
• Strong proficiency with Infrastructure as Code (IaC) tools like CloudFormation or Terraform
• Experience with observability and search platforms (Elasticsearch, OpenSearch, etc.)
• Solid grounding in CI/CD pipelines, automated testing, deployment, and monitoring
• Strong Java development skills for distributed, networked, multi-threaded systems
• Agile development experience with modern source control and collaboration tools
• Strong Linux fundamentals and the ability to script in languages like Python, Ruby, or Perl
• Familiarity with microservices architectures and container orchestration (e.g., Kubernetes)
• Understanding of security and compliance best practices for cloud-native systems
• 20+ years of software engineering experience supporting programs of similar scope and complexity.
• Bachelor’s degree in Computer Science or a related field (or 4 additional years of relevant SWE experience in lieu of a degree).
• Active TS/SCI clearance with polygraph.

Responsibilities

• Lead and support all phases of agile software development, including design, development, testing, integration, and deployment
• Build and optimize distributed systems running at scale across AWS and high-performance compute clusters
• Apply advanced AI techniques—such as LLMs, RAG, and agentic AI—to enhance system capability and automation
• Improve performance, reliability, and scalability through tuning, monitoring, and observability best practices
• Support ongoing operations, sustainment, and enhancement of mission-critical services
• Mentor junior engineers, provide technical guidance, and contribute to architectural decision-making
• Evaluate technical requirements, estimate effort, and create high-quality designs and documentation

Benefits

• Peraton offers enhanced benefits to employees working on our critical National Security programs, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior