Fullstack Developer (.NET + React)

We are looking for an experienced Fullstack Developer (.NET + React). We value direct communication and an open approach to problem-solving.

Currently, we are working on an application for our international client in the FinTech industry, dedicated to banks and financial institutions.

The project is initially planned for 3 months, with a possibility of extension. We are looking for candidates who are available to join the project immediately.

In Short

🌎 100% REMOTELY or from one of our 2 offices
💰 Senior: 130 - 160 pln/h
☑️ B2B contract

Your Daily Missions

• Designing web solution architecture based on best practices, using microservices and the cloud services.

• Developing within a SaaS product platform.

• Implementing new functionalities using .NET and React.

• Designing, developing, and maintaining APIs, services, and systems on a cloud-based platform.

• Building high-performance front-end and back-end solutions.

• Preparing tests and technical documentation.

• Being part of a SCRUM team that develops and delivers software solutions throughout the entire production lifecycle.

The Essentials We’re Seeking

• Over 4 years of commercial programming experience with .NET, C#, React and TypeScript (but will be ok more experience in back-end).

• Strong understanding of software architecture principles and backend design patterns (e.g., dependency injection, repository, mediator, factory).

• Exposure to cloud environments (Azure or AWS) and understanding of infrastructure and services..

• Fluency in English and Polish (minimum B2+) - a must.

• Hands-on experience with CQRS and Domain-Driven Design (DDD), including aggregates, entities, value objects, and bounded contexts.

• Understanding of Event Sourcing concepts - including event stores, event replay, and how to model state changes as immutable domain events.

• Solid knowledge of clean architecture and separation of concerns.

• Experience with PostgreSQL and modern ORM frameworks (e.g. Entity Framework or equivalent).

• Exposure to CosmosDB or similar NoSQL/document databases.

• Experience designing and consuming RESTful APIs.

• Familiarity with Docker for local development and deployments.

Tech stack

• AWS
• .NET Core
• C#
• PostgreSQL
• TypeScript
• Entity Framework
• Cosmos DB
• MS SQL
• React
• SQL