Software Engineer Senior

SAIC; Yorktown (VA); Remote; USD 120,000 - 170,000; Full time

Job summary

SAIC's Solutions & Technology Group (STG) is seeking a Senior Level Software Developer to design, develop, and deploy a next-generation Agentic AI Platform. You will contribute to building intelligent agent frameworks and modern web applications across the full stack, from frontend experiences to backend services and cloud infrastructure.

This role supports remote work anywhere in the United States for the right candidate and requires strong skills in HTML, CSS, JavaScript, Python, Java or

Qualifications

• Bachelor's degree in CS/SE or related field with 5+ years of experience
• Experience with front-end tech: HTML, CSS, JavaScript
• Experience with backend services and RESTful APIs in Python/Java/NodeJS
• Ability to obtain a secret security clearance
• Citizen, no dual citizenship

Responsibilities

• Design, develop, and maintain front-end web applications using modern web technologies
• Build and style responsive front-ends for polished UX
• Develop and maintain backend REST services and business logic
• Contribute to agentic AI components with LangChain/LangGraph/LangSmith
• Support deployment of AWS cloud services (OpenSearch, SageMaker, Lambda, SQS)
• Collaborate with AI/ML engineers, architects, and product owners
• Assist testing, debugging, and performance optimization of platform components

Skills

Front-end development

ReactJS

HTML/CSS/JavaScript

Python

Java

NodeJS

REST APIs

Agile

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

LangChain

LangGraph

LangSmith

OpenSearch

SageMaker

Lambda

SQS

Job description

About SAIC Science Applications International Corporation (SAIC) is a premier technology integrator delivering solutions across defense, space, civilian, and intelligence markets. Our Solutions & Technology Group (STG) is at the forefront of developing cutting-edge AI-driven capabilities that empower mission-critical operations.

SAIC's STG is seeking a talented and motivated Senior Level Software Developer to join our growing team focused on the design, development, and deployment of a next-generation Agentic AI Platform. In this role, you will contribute to building intelligent, autonomous agent frameworks and modern web applications that support complex decision-making workflows. You will work across the full development stack - from crafting intuitive front-end user experiences to building robust backend services and cloud infrastructure components. This opportunity can be worked remotely anywhere in the United States for the right candidate.

• Design, develop, and maintain front-end web applications using modern web technologies.
• Build and style responsive, ensuring a polished and effective user experience.
• Develop and maintain backend REST services and business logic to support platform capabilities and agentic AI workflows.
• Contribute to the development of agentic AI components, including integration with frameworks such as LangChain, LangGraph, and LangSmith.
• Support development and deployment of cloud-based services and infrastructure on AWS, leveraging tools such as OpenSearch, SageMaker, Lambda, and SQS.
• Collaborate with AI/ML engineers, architects, and product owners to translate requirements into scalable, production-ready solutions
• Support testing, debugging, and performance optimization of platform components

Bachelor's degree in Computer Science, Software Engineering, or a related field and 5 years of experience or Masters and 3 Years of experience

Experience: 5-8 years of professional software development experience

Citizen, no-dual citizenship

The ability to get a secret security clearance

Experience building front-end web applications using core web technologies: HTML, CSS, and JavaScript

Experience developing backend services and APIs, including RESTful service design and complex business logic implementation, using languages such as Python, Java, or NodeJS

Strong problem-solving skills and ability to work effectively in a fast-paced, collaborative agile environment

Front-End Development: Experience with HTML, CSS, JavaScript, and ReactJS for building modern, component-based web applications. Ability to effectively style and design front-end applications for usability and visual consistency

Backend & AI Development: Python development experience, particularly for backend service development. Hands-on experience with Agentic AI frameworks such as LangChain, LangGraph, and/or LangSmith. Cloud & Infrastructure: Experience with AWS cloud services, including one or more of the following:

SAIC is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

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