.NET FullStack Developer

Altimi is a technology acceleration partner with impressive experience spanning over 20 years, specializing in the successful delivery of software development projects for international customers. We are based in Poland. Our main area of operation is the DACH region and Scandinavia, where we are known for providing top-notch software development services.

Our primary focus are managed services for companies seeking to accelerate growth, solve complex tech problems, build MVP/POC and/or modify legacy infrastructures.

The main area of competence include Product & Application Engineering, DevOps, Cloud Security & Managed Services and AI & Data Enablement.

Role Overview

Join an international team working on a UK-based digital transformation project in the financial services sector. You will contribute to building and scaling high-performance web applications and internal platforms using a modern Microsoft technology stack. The role combines frontend development with robust, cloud-native backend services.

Responsibilities

• Design and deliver end-to-end features — from intuitive UI components to scalable backend APIs
• Develop user-centric front-end applications using React and TypeScript
• Build and maintain backend services using .NET (C#) and ASP.NET Core
• Optimize applications for performance, scalability, and security
• Collaborate with Integration and DevOps teams within the Azure ecosystem
• Contribute to cloud-based solutions leveraging containers and microservices architecture

• 5+ years of commercial experience in Full Stack development
• Strong proficiency in .NET (C#) and React (TypeScript)
• Hands-on experience with ASP.NET Core (REST APIs, Microservices)
• Experience with Azure Kubernetes Service (AKS) and Docker
• Solid knowledge of state management (Redux, Context API, Hooks)
• Strong understanding of SQL Server and Entity Framework Core
• Ability to work in an English-speaking environment (min. B1 level)

• Join for a role, stay for the development: More than 40% of our team is working with us longer than 5 years. Explore diverse domains, projects and modern technologies through internal mobility.
• Learn from the best: Almost 60% of all our colleague has over 10 years of professional experience.
• Flexibility: Work fully remotely, full-time from our office in Wroclaw or in a hybrid model.
• Practical benefits: private medical care, life insurance, sport card, English and German classes in small, online groups.