Senior Full-Stack AI & Geo Systems Engineer

Trinnex; Lewiston (ME); On-site; USD 102,000 - 179,000; Full time

Job summary

Trinnex is seeking a Senior Full Stack Developer to join our Digital Solutions team. You’ll design, develop, and maintain scalable frontend and backend applications that integrate sensor/IoT data, geospatial tools, and AI‑powered components to solve real‑world environmental challenges.

You’ll work across the full technology stack with a cross‑functional group, influence technical direction, and deliver production‑ready solutions with best‑practice DevOps and security considerations.

Qualifications

• Bachelor's degree required or equivalent experience.
• 5 years of related experience in full stack development or comparable roles.
• Experience with sensor/IoT data integration is a plus.
• Willingness to travel as needed; work authorization in the U.S.

Responsibilities

• Design, develop, and maintain scalable frontend and backend applications.
• Build and optimize REST, GraphQL APIs and data integration layers.
• Collaborate on AI enabled features, agent-based workflows, and RAG components.
• Develop automated testing, CI/CD deployments, and production readiness.
• Mentor juniors, review code, and drive engineering practices.

Skills

Full stack development

React

C#/.NET

TypeScript/Node.js

API design

Geospatial tech

AI/agent systems

RAG patterns

A2A communication

Claude/Cursor tools

Education

Bachelor's degree

5 years related experience

Tools

Kubernetes

GCP

Esri

PostGIS

Mapbox

CI/CD pipelines

Job description

Trinnex is seeking a Senior Full Stack Developer to join our Digital Solutions team. You’ll design, develop, and maintain scalable frontend and backend applications that integrate sensor/IoT data, geospatial tools, and AI‑powered components to solve real‑world environmental challenges.

You’ll work across the full technology stack with a cross‑functional group, influence technical direction, and deliver production‑ready solutions with best‑practice DevOps and security considerations.