Senior Full-Stack Engineer (.NET React)

Senior Full-Stack Engineer (.NET + React)

Miejsce pracy : Kielce

Technologies we use

Expected

• .NET
• C#
• TypeScript
• React
• SQL
• Microsoft Azure

About the project

Aiventic is an AI copilot for field service professionals. It helps technicians diagnose equipment issues, identify the right parts, and perform repairs faster and more accurately. The platform combines large language models, real-world repair data, and structured service documentation to deliver guided troubleshooting and instant access to relevant technical knowledge. The goal is simple — to make every technician perform like a seasoned expert, no matter the complexity of the job.

The product is already used by service companies across the U.S. and is now entering a strong growth phase. We’re expanding integrations with external systems such as ERPs, CRMs, and part catalogs, and continuously improving our AI reasoning and retrieval capabilities. Aiventic is a long-term SaaS product — it’s not a project with an endpoint, but an evolving platform built and refined with real user feedback from the field.

We operate in the field-service and facility-management domain, delivering a web-based platform optimized for desktop and mobile browsers (PWA). The system consists of a React front-end app, a .NET API layer, and integration modules that connect to various data sources. Our AI layer leverages Semantic Kernel, OpenAI APIs, and Azure Cognitive Search to reason over manuals, historical job data, and structured knowledge.

The tech stack includes .NET 8, C#, Entity Framework Core, SQL Server, Azure Functions, and Azure Service Bus on the backend; React 18, TypeScript, Vite, and TailwindCSS on the frontend; with infrastructure fully hosted in Azure, using Azure DevOps and GitHub Actions for CI / CD.

We’re a small, experienced team working closely together on architecture, features, and research. While the CTO and tech leads guide direction, everyone has real influence over technology choices and implementation. We care about clean code, clarity, and moving fast — building tools that truly help people get real work done.

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⚙️ Tech Stack

Interested?

Send us your GitHub or portfolio link and a short note about something you’ve built that you’re proud of.

APPSTREAM STUDIO LLC

AppStream Studio — the innovation consultancy behind Aiventic.ai — is looking for a Senior Full-Stack Engineer who doesn’t just code, but leads, innovates, takes ownership, and brings fresh thinking to the table. You’ll help build and scale Aiventic : an AI-powered platform that empowers technicians to diagnose issues, identify parts, and finish repairs faster.

AppStream Studio is a Microsoft-certified innovation consultancy and product studio. We help enterprises and PE-backed companies design, build, and scale next-generation software — blending deep .NET expertise with modern AI and product strategy.