Middle .NET Developer, Tickets Selling System

Client

Our client is one of the regional leaders in the industry and is currently launching a new product—an international platform for ticket sales. The company’s annual revenue exceeds €100 million.

Project overview

The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is big and modular (microservice-based), complying with a number of regulations. APIs are provided for different clients including the biggest Global Distribution Systems (GDSes), as well as solutions labeled by more than half of Train Operating Companies (TOCs) in the UK.

The system is based on a microservice architecture with continuous integration, where a few hundred components operate independently. All components run on AWS. The backend includes .NET 7/8, and the REST API is being modernized to Cloud Native solutions (RDS such as Postgres and DynamoDB) from MSSQL. The company works with the latest technologies and upgrades to newer versions when available.

Team

Several independent teams work on specific parts of the system. There are 30+ .NET developers on the backend, divided into smaller squads.

Position overview

The role focuses on developing new features and modernizing the IT system of an independent online railroad ticket retailer, following strong engineering practices such as clean code, extensive unit testing, CI, frequent production deployments, code reviews, and Agile methodology.

Responsibilities

• Development of new features and expansion of the ticket-selling system
• Refactoring tasks
• 80–90% backend development
• 10–20% team meetings

Requirements

• 3–5 years of backend development experience
• 3–5 years of commercial development on the .NET platform
• Strong knowledge of C#
• Practical experience with AWS
• 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 (e.g., Moq)
• Experience with dependency injection (e.g., Autofac)
• Knowledge of Entity Framework or NHibernate
• Experience with DBMS systems
• Understanding of Agile methodology
• Good spoken English

What We Offer

• Up to 26 business days of vacation per year
• 10 fully paid illness/special days off per year
• 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) and internal training
• Flexible workplace: office, remote, or hybrid
• Tech Skills Mentoring Program
• Opportunities to develop as a public speaker, mentor, or technical interviewer
• Fully paid bench period when not involved in a project
• Certification reimbursement (AWS, GCP, Microsoft, etc.)