Secure Full-Stack Engineer, API & UI (AWS/K8s)

CACI; Aurora (CO); On-site; USD 108,000 - 228,000; Full time

Job summary

CACI is seeking a Mid-Senior Full Stack Developer to design and build API layers and modern web UI for real-time data delivery to third-party partners. You will work in an AWS-based, Kubernetes-native environment with DISA STIG and OWASP standards, delivering secure, scalable solutions.

Responsibilities include creating responsive React front-ends, building RESTful/GraphQL APIs with Node.js, Python, or Java, implementing OAuth2/OIDC/mTLS, and guiding CI/CD deployments with GitLab and Helm while

Qualifications

• Current TS/SCI clearance with Polygraph.
• Bachelor’s degree in Computer Science or related field, or equivalent experience.
• 5+ years (mid-level) or 10+ years (senior-level) of full-stack software engineering experience.
• Advanced proficiency in JavaScript/TypeScript and React, including Redux and Context API.
• Strong experience building APIs with Node.js, Python (FastAPI/Flask), or Java (Spring Boot).
• Proficiency with Docker — writing Dockerfiles, building hardened images, and integrating with CI/CD pipelines.
• Familiarity with GitLab CI/CD, Helm, and Kubernetes deployment.
• Comfortable working in an agile, distributed team environment.
• Ability to travel up to 5%.

Responsibilities

• Design and maintain responsive front-end applications using React, handling complex data visualization and high-concurrency use cases for external partners.
• Build and maintain scalable RESTful and GraphQL APIs using Node.js, Python (FastAPI/Flask), or Java (Spring Boot) for third-party data access.
• Implement authentication and authorization patterns including OAuth2, OIDC, mTLS, and RBAC to ensure secure external data access.
• Design and optimize relational (PostgreSQL) and non-relational (Elasticsearch, Redis) data store interactions.
• Containerize applications with Docker and deploy to Kubernetes on AWS in coordination with the DevSecOps team.
• Ensure all code meets DISA STIG requirements and addresses the OWASP Top 10 throughout the development lifecycle.
• Integrate with GitLab CI/CD pipelines and Helm charts for deployment across environments.
• Conduct code reviews, provide technical guidance for junior developers, and serve as the SME for third-party API integration.
• Maintain technical documentation, API specifications, and integration guides.

Skills

React/Redux

TypeScript/JavaScript

API design

Docker

Kubernetes

CI/CD

GitLab

Agile

Team collaboration

Security compliance

Education

Bachelor's degree in Computer Science or related field

Tools

Node.js

Python FastAPI/Flask

Java Spring Boot

Docker

GitLab

Kubernetes

PostgreSQL

Elasticsearch

Redis

Job description

CACI is seeking a Mid-Senior Full Stack Developer to design and build API layers and modern web UI for real-time data delivery to third-party partners. You will work in an AWS-based, Kubernetes-native environment with DISA STIG and OWASP standards, delivering secure, scalable solutions.

Responsibilities include creating responsive React front-ends, building RESTful/GraphQL APIs with Node.js, Python, or Java, implementing OAuth2/OIDC/mTLS, and guiding CI/CD deployments with GitLab and Helm while