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September 11, 2026
.NET Developer, Tickets Selling System
Mid • Remote
12,000 - 15,500 PLN/yr
Kraków, MA, Poland
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Quick Facts
Project: Development of new features and modernization of a microservice-based online railroad ticket sales platform
Architecture: Microservices with continuous integration; runs on AWS
Backend stack: .NET 8/10; REST API modernized toward cloud-native data solutions (e.g., RDS Postgres, DynamoDB)
Team: 1–10 people per team; multiple independent teams with squads
Description
You will help develop new features and modernize the backend of an independent online railroad ticket retailer. The platform provides APIs for multiple client types, including major Global Distribution Systems (GDSes), and is built with microservice architecture, extensive unit testing, CI, and frequent production deployments.
Responsibilities
Development of new features and refactoring of the ticket selling system
80–90% backend development
20–10% team meetings
Requirements
5 years of backend development experience
5 years of commercial software development on the .NET platform
Commercial experience with at least one cloud platform: Azure or AWS
Basic AWS exposure or strong willingness to ramp up quickly, including S3, deployments, and CI/CD awareness
Understanding and experience working with C#
Strong skills in Clean Code and OOP
Understanding of SOLID principles
Knowledge of WebAPI
Understanding of microservices architecture
Experience with unit testing (e.g., NUnit) and mocking frameworks (preferred Moq)
Experience with dependency injection (preferred Autofac)
Knowledge of Entity Framework or NHibernate
Experience working with any DBMS system
Understanding of Agile development methodology
Good spoken English
Benefits
Vacation days: up to 26 business days per year
10 illness/special days off per year (fully paid, no medical papers needed)
Health and life insurance (Luxmed)
MyBenefit platform with Multisport option
Internal psychological support service
English language classes from the first working day
Access to external learning platforms: O’Reilly, LinkedIn Learning, Udemy
Flexible workplace: office, home, or hybrid option
Tech Skills Mentoring Program
Opportunities to develop as a public speaker, mentor, or technical interviewer
Fully paid idle (bench) when not involved in a project
Certification reimbursement (AWS, GCP, Microsoft, etc.)
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