Ontrac Solutions
Open positions
Senior Software Engineer (.NET/C#/Azure)
Senior engineer building a modern auction backend for a wholesale digital marketplace as part of a contractor program: writing production C# on .NET Core, designing data models and REST APIs, and working with Azure and Azure DevOps CI/CD. Fully remote within the United States.
Senior Full-Stack Software Engineer
Senior hands-on full-stack contractor role supporting a US public-sector engagement: own features end to end from a React frontend through Java/Spring Boot backend services and a PostgreSQL data model, plus supporting Node.js services, deployed and operated on GCP. Expected to work AI-first, using AI coding assistants and agentic workflows daily.
Senior Security Platform Engineer (IC4)
Ontrac Solutions is looking for a Senior Security Platform Engineer (IC4) to work as an embedded contractor on a customer's engineering team, building day-to-day backend integrations and policy platform features in Golang against MongoDB, Snowflake, and AWS. Fully remote within the US, roughly a 3-month engagement starting October 2026 with a high likelihood of extension.
Sr. Software Engineer – Backend / API Engineering
Senior backend engineer joining a contractor engagement to build a state government professional licensing and regulatory compliance platform on Google Cloud. Day to day: designing Java 21/Spring Boot microservices, owning the REST API surface, building PostgreSQL persistence, event-driven Pub/Sub flows, payments, and OAuth-secured services.
Senior Backend Software Engineer – Agentic AI Workflows (Go/AWS)
About the role Most backend roles touching “AI” mean a chatbot bolted onto a CRUD app. This one is different: the agentic workflows are the product surface. You’ll work on an established enterprise asset-and-metadata…
Senior AI Product Manager
Senior AI Project Manager We are seeking a Senior AI Project Manager for our multinational client, a leading group in the Telecom & Fintech sectors , to lead high-impact AI and Machine Learning projects. This role…
Senior MongoDB Expert – Database Engineer
About the role Join a leading pan-African technology group operating across four French-speaking countries. As our Senior MongoDB Expert, you will be a key player in building and sustaining robust, high-availability…