Senior .NET/React Full-Stack Engineer | Azure Microservices

OPTIVEUM sp. z o.o.; Polska; Hybrid; PLN 201,000 - 279,000; Full time

Benefits offered by this job

Hybrid work policy

Modern Warsaw Office

Competitive compensation

Job summary

OPTIVEUM sp. z o.o. seeks a Senior FullStack Developer to bridge backend .NET services and modern frontend with React. You’ll own features end-to-end, design RESTful APIs, and contribute to a cloud-native microservices platform on Azure.

You will collaborate with US product managers, mentor teammates in Warsaw, and deliver world-class UX in a fast-paced US tech culture with a hybrid work model in Warsaw.

Qualifications

• 5+ years of .NET (6/8+) and C# experience building RESTful APIs.
• Frontend experience with React and TypeScript.
• Azure cloud experience with App Services, Functions, Cosmos DB/SQL.
• SQL Server and Entity Framework Core expertise.
• CI/CD with Azure DevOps or GitHub Actions.
• Excellent English (C1).

Responsibilities

• Own features end-to-end from database to final React component.
• Contribute to Cloud-Native microservices architecture on Azure.
• Maintain high coding standards (SOLID, Clean Code, design patterns).
• Develop responsive, high-performance React applications.
• Collaborate with US PMs and stakeholders to translate vision into reality.
• Mentor and conduct code reviews for the Warsaw hub.

Skills

.NET

React

TypeScript

REST APIs

Tools

Docker

Kubernetes

Azure DevOps

GitHub Actions

Job description

OPTIVEUM sp. z o.o. seeks a Senior FullStack Developer to bridge backend .NET services and modern frontend with React. You’ll own features end-to-end, design RESTful APIs, and contribute to a cloud-native microservices platform on Azure.

You will collaborate with US product managers, mentor teammates in Warsaw, and deliver world-class UX in a fast-paced US tech culture with a hybrid work model in Warsaw.