Software Engineer Senior

SAIC; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

SAIC's Solutions & Technology Group seeks a Senior Level Software Developer to design, develop, and deploy a next-generation Agentic AI Platform, spanning front-end, back-end, and cloud infrastructure across AWS.

You will work on intelligent agent frameworks and modern web applications, integrating LangChain, LangGraph, and LangSmith, while collaborating with AI/ML engineers, architects, and product owners in a fast-paced, Agile environment.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field with 5+ years of experience, or Master's with 3+ years.
• 5-8 years of professional software development experience.
• Must pass CompTIA Security+ within 270 days of employment.
• U.S. Citizenship required; able to obtain a Secret clearance.
• Experience building front-end web applications with HTML, CSS, and JavaScript.
• Experience developing backend services/APIs with RESTful design in Python, Java, or NodeJS.

Responsibilities

• Design, develop, and maintain front-end web applications with modern web technologies.
• Build responsive, polished user interfaces and experiences.
• Develop and maintain backend REST services and business logic.
• Integrate agentic AI components with LangChain, LangGraph, LangSmith.
• Support cloud-based services and infrastructure on AWS (OpenSearch, SageMaker, Lambda, SQS).
• Create and maintain Infrastructure as Code using Terraform, Packer, Terragrunt.
• Collaborate with AI/ML engineers, architects, and product owners to translate requirements into scalable solutions.
• Assist testing, debugging, and performance optimization; maintain system docs.

Skills

HTML/CSS/JS

RESTful APIs

Python

Java

NodeJS

Frontend development

Education

Bachelor's degree in Computer Science/Software Engineering

Master's degree in Computer Science/Software Engineering

Tools

LangChain

LangGraph

LangSmith

AWS

OpenSearch

SageMaker

Terraform

Packer

Terragrunt

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.

Position Overview

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.

Responsibilities

• 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.
• Develop and maintain Infrastructure as Code (IaC) using tools such as Terraform, Packer, and Terragrunt.
• 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
• Maintain documentation for system architecture, APIs, and development processes
• Provide feedback and mentoring to junior developers

Required Qualifications

• Education: 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
• Pass CompTIA Security Plus Examination within 270 Days of Employment
• Must be a U.S. 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

Preferred Qualifications

• 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. Familiarity with multi-agent orchestration, autonomous workflow design, or LLM integration patterns
• Cloud & Infrastructure: Experience with AWS cloud services, including one or more of the following: OpenSearch, SageMaker, Lambda, SQS
• Experience with Infrastructure as Code (IaC) tools, including: Terraform, Packer, Terragrunt
• Familiarity with DevSecOps practices