Principal Software Engineer TS/SCI Polygraph

Leidos•Hanover, MD

2d•$154,050 - $278,475•Onsite

About The Position

Leidos has a new and exciting opportunity for a Principal Software Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. The Principal Software Engineer will serve as technical anchor for a new feature/capability being added to our product. Ideal candidate will be able to architect/design a new feature and translate complex business requirements into robust, documented technical designs. Responsibilities will include coordinating closely with members of an Integrated Feature Team (IFT) to ensure high-quality delivery through the lifecycle. This role requires an active/current TS/SCI Polygraph up front.

Requirements

TS/SCI Clearance with polygraph
Bachelor's Degree or higher in computer engineering or in a field related to the computer engineering or computer science disciplines is required.
Requires Bachelor's degree with a minimum of 18 years of prior relevant experience or Masters with 15 years of prior relevant experience or Doctorate with 13 years of prior relevant experience.
Expert in Java (17+ preferred), the Spring Boot ecosystem, SOLID principles, OO design patterns, and REST interface standards/best practices.
Strong communicator with the ability to facilitate cross-team collaboration and clearly convey architecture and design concepts through both oral and written communication.
Skilled in developing technical documentation (including wiki sites, blogs, and XML/HTML content) and mentoring junior to mid-level software development peers.

Nice To Haves

Strong experience with MongoDB Data Architecture (schema design, indexing, and aggregation).
Proficiency in Docker for local development and CI/CD pipelines.
Familiarity with Kubernetes orchestration and the ELK Stack (Elasticsearch, Logstash, Kibana) for system monitoring and troubleshooting.
Experience in PKI/TLS/SSL certificates
Knowledge of ICAM Capabilities and Integration
Familiarity using Confluence and Jira
Strong organization and time management skills, including the ability to multi-task and work independently with minimum supervision to meet deadlines

Responsibilities

Deconstruct complex requirements to determine system impact.
Lead the creation of design documentation using Object-Oriented (OO) principles, ensuring new features integrate seamlessly without technical debt.
Act as the feature lead for a new capability, responsible for the "definition of done," guiding a feature from initial concept through development, testing, and deployment.
Serve as the technical liaison to the Systems Engineering team to align on approach and constraints.
Decompose high-level feature designs into actionable tasks for the development team.
Manage feature status to leadership and mentor junior/mid-level peers.
Conduct rigorous merge request (MR) reviews to maintain code standards, security protocols, and performance benchmarks.