Software Engineer Senior

SAIC•Flexwork, VA

20h•Remote

About The Position

SAIC's Solutions & Technology Group is seeking a senior software developer to help design, develop, and deploy a next-generation Agentic AI Platform. The role involves building intelligent autonomous-agent frameworks and modern web applications for complex decision-making workflows, working across front-end development, backend services, and cloud infrastructure. The position can be performed remotely anywhere in the United States for the right candidate.

Requirements

Bachelor's degree in Computer Science, Software Engineering, or a related field and 5 years of experience, or a master's degree and 3 years of experience.
5–8 years of professional software development experience.
Pass the CompTIA Security Plus examination within 270 days of employment.
Must be a U.S. citizen with no dual citizenship.
Ability to obtain a secret security clearance.
Experience building front-end web applications using HTML, CSS, and JavaScript.
Experience developing backend services and APIs, including RESTful service design and complex business logic, using languages such as Python, Java, or NodeJS.
Strong problem-solving skills and ability to work effectively in a fast-paced, collaborative agile environment.

Nice To Haves

Experience with ReactJS for building modern, component-based web applications and styling front-end applications for usability and visual consistency.
Python development experience, particularly for backend service development.
Hands-on experience with agentic AI frameworks such as LangChain, LangGraph, and/or LangSmith.
Familiarity with multi-agent orchestration, autonomous workflow design, or LLM integration patterns.
Experience with AWS services such as OpenSearch, SageMaker, Lambda, or SQS.
Experience with Infrastructure as Code tools such as Terraform, Packer, or Terragrunt.
Familiarity with DevSecOps practices.

Responsibilities

Design, develop, and maintain front-end web applications using modern web technologies.
Build and style responsive applications to provide a polished and effective user experience.
Develop and maintain backend REST services and business logic supporting platform capabilities and agentic AI workflows.
Contribute to agentic AI components, including integrations with LangChain, LangGraph, and LangSmith.
Support development and deployment of cloud-based services and infrastructure on AWS, using tools such as OpenSearch, SageMaker, Lambda, and SQS.
Develop and maintain Infrastructure as Code using Terraform, Packer, and Terragrunt.
Collaborate with AI/ML engineers, architects, and product owners to turn requirements into scalable, production-ready solutions.
Support testing, debugging, and performance optimization of platform components.
Maintain documentation for system architecture, APIs, and development processes.
Provide feedback and mentoring to junior developers.