Fullstack Developer (.NET + React)

Mid • Remote

22,000 - 27,000 PLN

We are looking for an experienced Full-Stack Developer to join a long-term project for one of the world's leading professional services organizations. You will work within a global technology team delivering solutions for a UK-based banking client in a regulated, enterprise-scale environment.

Location: 100% Remote (Poland) with occasional visits to Warsaw office

Client: Global professional services firm, banking & financial services sector, UK

Requirements

3+ years of experience in full-stack development, with proficiency in most of the following:

C#, ASP.NET Core, .NET Web API
React — state management, component architecture
HTML5, CSS3, JavaScript / TypeScript
RESTful API design and integration
SQL Server — queries, stored procedures, functions, views
Entity Framework
Design patterns and database normalization
Azure DevOps for source control and CI/CD
Application security, performance, and scalability best practices
Bachelor's degree in Computer Science or related field

Nice to Have

Azure Cloud Services and cloud-native architecture
SFTP and encryption/secure file transfer protocols
Experience with vendor software integration and custom interfaces

Responsibilities

Design, develop, and maintain web applications using .NET (C#, ASP.NET Core) and React
Build responsive user interfaces with HTML, CSS, JavaScript, and React
Develop and consume RESTful APIs to connect client-side and server-side components
Implement and optimize data storage using SQL Server (stored procedures, functions, views)
Perform coding, debugging, testing, and troubleshooting throughout the development lifecycle
Maintain and enhance existing systems, fixing complex bugs and escalating risks where needed
Capture detailed requirements from stakeholders and translate them into technical specifications
Ensure adherence to coding standards, design patterns, and security best practices
Collaborate with vendor teams and third-party integrations
Monitor emerging technologies and contribute ideas for continuous improvement

We Offer

100% remote work from Poland
Occasional team meetups in Warsaw
Long-term project with a prestigious international client
Exposure to enterprise-scale banking solutions
B2B Contract
Private medical care (Luxmed)
MultiSport sports card

moondigo sp. z o.o.

Moondigo sp. z o.o. is a technology company that specializes in supporting major Polish and international enterprises by developing modern IT systems for the financial and insurance sectors. The company is involved in designing, building, and enhancing solutions that serve millions of users daily, ranging from corporate banking to systems that support insurance and factoring companies. Moondigo is distinguished by its commitment to creating impactful IT solutions that are integral to the operations of key market players. The company values innovation, quality, and collaboration, as evidenced by its focus on developing comprehensive technological stacks and maintaining high standards in code quality. Moondigo operates in a dynamic and supportive environment, with a presence in multiple Polish cities, including Krakow, Poznan, Lodz, Warsaw, and Lublin.

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