Senior Full-Stack AI Engineer - Remote

Unissant; Ashburn (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Unissant, Inc. seeks a Senior Software Engineer to support FEMA’s AI portfolio. You will provide technical leadership for full-stack engineering, cloud integration, and platform operations, delivering secure, scalable AI services that meet security, accessibility, and performance requirements.

Core skills include PERN-stack development, Terraform, CI/CD, observability, and documentation. You will collaborate with AI engineers, data scientists, cybersecurity, and product owners to deliver

Qualifications

• Five (5) to ten (10) years of experience in full-stack software engineering, architecture, cloud engineering, DevSecOps, or related technical disciplines.
• Proficiency with PERN-stack technologies or comparable modern full-stack technologies; Terraform; CI/CD; git-based code management; and observability tools.
• Experience designing accessible user interfaces and testing web applications for Section 508 conformance.
• Experience building secure, maintainable, scalable applications and integrating cloud-hosted services, APIs, and enterprise data systems.
• Strong technical leadership, documentation, troubleshooting, performance-engineering, and collaboration skills.

Responsibilities

• Lead the architecture, design, development, integration, testing, deployment, and sustainment of full-stack AI applications.
• Build user interfaces, APIs, middleware, data services, and back-end components for RAG/chatbot, document-processing, predictive-analytics, and enterprise-automation solutions.
• Apply PERN-stack engineering practices using PostgreSQL, Express.js, React, and Node.js; use Terraform for infrastructure-as-code where applicable.
• Establish and maintain CI/CD pipelines, source-control practices, automated testing, environment promotion, and observability across FEMA-approved AI platforms.
• Conduct system analysis, performance engineering, debugging, root-cause analysis, and technical-debt remediation.
• Ensure user-facing deliverables comply with Section 508; support accessibility test plans, test results, and Accessibility Conformance Reports as required.
• Develop and maintain architecture diagrams, build and operating plans, interface specifications, security artifacts, user guides, and technical documentation.
• Collaborate with AI engineers, data scientists, cybersecurity personnel, product owners, and program stakeholders to deliver secure, scalable, production-ready capabilities.

Skills

Full-stack dev

PERN stack

Cloud engineering

DevSecOps

CI/CD

Accessibility (Section 508)

Technical leadership

Education

Bachelor's or Master's degree in Computer Science or related field

Tools

PostgreSQL

Express.js

React

Node.js

Terraform

Job description

Unissant, Inc. seeks a Senior Software Engineer to support FEMA’s AI portfolio. You will provide technical leadership for full-stack engineering, cloud integration, and platform operations, delivering secure, scalable AI services that meet security, accessibility, and performance requirements.

Core skills include PERN-stack development, Terraform, CI/CD, observability, and documentation. You will collaborate with AI engineers, data scientists, cybersecurity, and product owners to deliver