Senior Full-Stack Engineer: AI, Geospatial & Agent Systems

Trinnex; Ann Arbor (MI); On-site; USD 110,000 - 160,000; Full time

Job summary

Trinnex is seeking a Senior Full Stack Developer to join our Digital Solutions team in Ann Arbor, MI. You’ll design and build scalable frontend and backend applications, integrating sensor/IoT data, geospatial tech, and AI-enabled components.

You’ll work across the full stack, collaborate with a cross-functional team, and influence architectural direction while delivering production-ready solutions with a focus on performance, security, and reliability.

Qualifications

• Design, develop, and maintain scalable frontend and back-end applications using modern frameworks and architectures.
• 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.

Responsibilities

• Design, develop, and maintain scalable frontend and back-end applications using modern frameworks and architectures.
• 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

React

Context API

Hooks

C#/.NET

JavaScript/TypeScript

Node.js

Next.js

Express

API design

Geospatial tech

ESRI

PostGIS

Mapbox

AI/agents

RAG

A2A communication

MCP

GCP

Education

Bachelor's degree

Tools

CI/CD

Kubernetes

Cloud platforms

Job description

Trinnex is seeking a Senior Full Stack Developer to join our Digital Solutions team in Ann Arbor, MI. You’ll design and build scalable frontend and backend applications, integrating sensor/IoT data, geospatial tech, and AI-enabled components.

You’ll work across the full stack, collaborate with a cross-functional team, and influence architectural direction while delivering production-ready solutions with a focus on performance, security, and reliability.