Hybrid Regular .NET Developer, Card Payment Systems

at MARGO

• Job title: Regular .NET Developer, Card Payment Systems
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: PLN 100 - PLN 110 per hour
• Degree requirement: Bachelor's Degree
• Tech skills: Angular, ASP.NET, Entity Framework, SOAP, SQL, .NET
• Location requirements: Hybrid, Warsaw, Poland

About the role

• Regular .NET Developer responsible for developing and maintaining card payment systems in an international consulting company. Remote work with occasional on-site team meetings in Warsaw.

Responsibilities

• Develop and maintain .NET applications in card payment domain
• Design and implement new functionalities according to business and regulatory requirements
• Integrate systems with external services (REST, SOAP, messaging queues)
• Optimize performance, availability and security of applications
• Cooperate with Analysts, Architects and QA in Agile/Scrum teams
• Participate in SIT/UAT testing, code reviews and preparation of technical documentation

Requirements

• Commercial experience with C# and .NET (Framework / Core)
• Experience with ASP.NET Core, Angular and WebAPI
• Knowledge of Entity Framework, LINQ, Dapper
• Experience with SQL Server (T-SQL) and query optimization
• Knowledge of SOLID principles and design patterns
• Experience writing unit tests (xUnit / NUnit)
• Experience with system integrations (REST, SOAP, JSON, XML)
• Experience working in Agile environment
• Knowledge of Git, CI/CD and TeamCity
• Polish: native or C2 level (required)
• English: professional level enabling work with technical documentation

Benefits

• B2B cooperation
• Remote working model
• Benefits such as medical care and sports card
• Co-financing trainings, certification exams and post-graduate studies
• Ability to work in an international consulting company on ambitious projects
• Possibility to get involved in outside-project activities with additional remuneration
• Excellent working atmosphere, integration events