Full Stack Software Engineer

Description

Leidos is seeking a Full Stack Software Engineer to support the Catena project. In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance highly available, scalable systems using modern technologies. You will play a key role in shaping the future of our front-end and back-end architecture, ensuring seamless deployment within an AWS environment using Serverless frameworks and GitLab CI pipelines.

This role is 100% remote but proximity to the Washington Metro Area is preferred.

This posting is for multiple opportunities ranging in years of experience. Level of opportunity, including compensation, will be matched to a candidate's experience.

Primary Responsibilities:

• Design, develop, and maintain scalable and efficient front-end and back-end systems using modern programming languages and frameworks.
• Write clean, maintainable, and well-documented code following best practices and coding standards.
• Develop and maintain APIs, microservices, and server-side logic using languages like Java, Python, Node.js, or similar.
• Deploy applications to cloud environments (e.g., AWS, Azure, Google Cloud) and ensure scalability and reliability.
• Implement database solutions, including schema design, queries, and optimization for relational (e.g., PostgreSQL, MySQL) or non-relational (e.g., MongoDB, DynamoDB) databases.
• Write unit, integration, and end-to-end tests to ensure code quality and functionality.
• Collaborate with QA teams to identify and resolve bugs and performance bottlenecks.
• Conduct peer code reviews to ensure quality, consistency, and adherence to best practices.
• Provide constructive feedback to team members and incorporate feedback into your own work.
• Debug and resolve technical issues across the stack, ensuring minimal downtime and optimal performance.
• Identify and implement solutions to improve system reliability and user experience.
• Communicate with internal team members across multiple areas and client team members.
• Provide assistance and support for less experienced team members.

• US Citizenship; Ability to obtain a DoD Secret security clearance.
• Bachelor's degree with 4+ years of experience or a Master's degree with 2+ years of experience as a minimum qualification.
• Experience developing software systems using Java or Python.
• Proficiency in front-end development using React and Typescript.
• Experience with Infrastructure as code tools like Terraform.
• Experience developing and deploying software into cloud environments, particularly AWS.
• Demonstrated experience working in a DevOps environment with a CI/CD pipeline.
• Demonstrated experience with serverless frameworks for building scalable applications.
• Strong verbal and written communication skills and the ability to interact at multiple levels of the organization from program teams to Sector leadership.
• Expertise in GitLab CI/CD, with experience in creating pipelines for automated testing, deployment, and monitoring.

• Knowledge of supply chain logistics platforms and experience building systems that optimize workflows, inventory management, and resource allocation.
• Recent experience within the National Security or Department of Defense with an understanding of those missions and operating environments.
• Experience integrating AI/ML into software development.
• Experience developing software systems in secure environments.
• Scaled Agile Development experience or other formal Agile experience.
• Certifications in Cloud technologies (AWS, Azure, Google Cloud, etc.) or Security technologies (CISSP, Security+, etc.).
• Understanding of Leidos technology investments (e.g. IRAD).
• Experience implementing solutions for multiple customers.