Senior Full Stack Engineer with AI, Agents & Geospatial

Trinnex; Naperville (IL); On-site; USD 110,000 - 150,000; Full time

Job summary

Trinnex is seeking a Senior Full Stack Developer to join our Digital Solutions team in Naperville, IL. You will work on modern applications combining sensor/IoT data, geospatial tech, and AI-powered agent systems to solve real-world engineering and environmental challenges.

The role spans frontend and backend development, API design, and collaboration across cross-functional teams. You will influence technical direction, mentor juniors, and help deliver scalable, production-ready solutions.

Qualifications

• Bachelor's degree in a related field.
• 5 years of related experience.
• Equivalent additional directly related experience will be considered in lieu of a college degree.
• Domestic and/or international travel may be required.

Responsibilities

• Design, develop, and maintain scalable frontend and back-end applications.
• Build, integrate, and optimize REST, GraphQL, and other APIs to support secure, high performing systems.
• Apply best practices in code quality, security, performance optimization, and testing throughout the development lifecycle.
• Contribute to the design and implementation of AI driven features, including agent-based workflows and intelligent application components.
• Support systems that use retrieval augmented generation (RAG), vectorized data access, and contextual retrieval strategies.
• Collaborate on architectures that enable agent orchestration and agent to agent (A2A) communication.
• Develop and execute automated testing strategies to ensure reliability and performance.
• Deploy applications through CI/CD pipelines and partner with DevOps teams to support scalability, monitoring, and production readiness.
• Troubleshoot and resolve complex issues across the application stack.
• Collaborate with developers, designers, DevOps, and domain experts on solution design and feature delivery.
• Conduct code reviews and contribute to continuous improvement of engineering practices.
• Mentor and support junior developers across frontend, backend, and integration work.

Skills

Full stack

React

Context API

Hooks

C#/.NET

TypeScript

Node.js

Next.js

Express

API design

Geospatial

ESRI

PostGIS

Mapbox

AI agents

RAG

Orchestration

CI/CD

Testing

Security

Communication

Education

Bachelor's degree

Tools

CI/CD

Kubernetes

Job description

Trinnex is seeking a Senior Full Stack Developer to join our Digital Solutions team in Naperville, IL. You will work on modern applications combining sensor/IoT data, geospatial tech, and AI-powered agent systems to solve real-world engineering and environmental challenges.

The role spans frontend and backend development, API design, and collaboration across cross-functional teams. You will influence technical direction, mentor juniors, and help deliver scalable, production-ready solutions.