.NET Developer

Boldare; Poland; Remote; PLN 170,000 - 256,000; Full time

Job summary

A dynamic tech company based in Poland is looking for a .NET Developer to build a high-quality integration platform from scratch. Ideal candidates have 3+ years of experience with C# and .NET, strong knowledge of Web API, and excellent communication skills in English and Polish. This remote position offers the opportunity to work in a collaborative environment focused on quality and stability.

Qualifications

• Minimum 3 years of experience working with C# and .NET (Core 9).
• Familiarity with Clean Architecture (layered application architecture).
• Strong communication skills and independence in problem-solving.

Responsibilities

• Building a scalable, high-availability integration system.
• Designing and developing RESTful APIs.
• Maintaining clean, testable, and well-documented code.

Skills

C#

.NET Core

Web API (REST)

Entity Framework Core

Asynchronous programming

Git

Unit testing

English (B2)

Polish (B2)

Tools

SQL Server

PostgreSQL

Job description

Boldare is an Agile-powered company with nearly two decades of international experience in product development and consulting. We help our clients redefine their industries by co-creating digital products their users truly need. Since 2004, Boldare has delivered over 300 solutions for clients across the globe — from Western and Northern Europe to the UK, North America, the Middle East, Southeast Asia, and Australia. Our 80+ specialists work fully remotely across Europe, combining technical excellence with a strong product mindset.

Currently, we’re looking for a .NET Developer to join a new, long-term project for one of our international clients. This is a strategic greenfield initiative, focused on building a high-quality integration platform from scratch. The system will handle millions of users across three key regions (US, UK, EU), integrating with platforms such as Salesforce Commerce Cloud (SFCC), CrowdTwist, and Amplience CMS.

What you\'ll be working on

• Building a scalable, high-availability integration system
• Designing and developing RESTful APIs
• Collaborating with architects and other developers in a distributed team
• Maintaining clean, testable, and well-documented code
• Contributing to long-term platform stability and quality

Technical Requirements (must-have)

• Minimum 3 years of experience working with C# and .NET (Core 9)
• Very good knowledge of Web API (REST) and designing controllers and services
• Familiarity with Clean Architecture (layered application architecture)
• Experience with Entity Framework Core and relational databases (e.g., SQL Server, PostgreSQL)
• Experience in asynchronous programming (async/await)
• Knowledge of Git version control system
• Ability to debug applications
• Writing unit tests
• English and Polish at minimum B2 level

Nice to have

• Knowledge of Snowflake, Redis, GraphQL, or Amplience CMS
• Experience with middleware, system integrations, and building API proxies
• Understanding of API versioning, caching, and contract-first development
• Knowledge of AWS (especially API Gateway, Secrets Manager, Beanstalk, WAF)
• Hands-on experience with CI/CD (Bitbucket Pipelines, GitHub Actions, or similar)

Soft Skills

• Independence in problem-solving and focus on code quality
• Ability to read and understand existing architecture
• Strong communication skills – collaboration within a project team (developers + architect)
• Openness to code reviews and adherence to agreed coding conventions
• Willingness to grow and stay updated on .NET ecosystem developments

At Boldare, we believe in using technology to amplify human potential. That’s why we encourage candidates to use AI tools (like ChatGPT, Copilot, Notion AI, etc.) even during the recruitment process – if they help you structure your thoughts, reflect, or communicate more clearly, go for it.

We’re curious to see how you think, not how fast you type.

Interested? Let’s build something meaningful together.