Senior Backend Developer.

Your job will be to develop a part of a distributed system that serves the hospitality industry. It is a solution that allows hotel employees or hotel managers to handle various activities such as managing reservations, payments and hotel services within the hotel or between hotels. The system consists of many domain-oriented microservices developed under a few cross-functional teams.

Your responsibilities

• Collaborating with Product Owners in grooming the business requirements before development
  
• Designing, implementing and then maintaining new functionalities inside a living system
  
• Performing code reviews daily
  
• Guiding other developers into the correct implementation of business requirements
  

Our Daily Work

• We follow Scrum with iterating Sprints, Grooming & Sprint planning sessions, Code Freeze after sprint and retrospective meetings
• We use Gitlab to sync the code with develop and master branches, and create feature branch for each User Story
• We commit daily and use CI/CD using Gitlab/Jenkins
• We open merge requests and wait for review for other team members before merge
• We use docker and docker compose for local development and deployment of all microservices
• We create nuget packages to share work with others in our own Nuget Server
• We use Visual Studio or Rider or VSC for coding
• We use teams to communicate and or participate in meetings with other team members

Technologies:

• .NET 8 (C#), Web API, Entity Framework, REST
• Open ID (JWT), Identity Server, Federated Security, SSO
• PostgreSQL, Elastic Search, Redis
• Kafka
• Kubernetes, Docker
• AWS (S3, EC2, ESB, Route53, CloudFront, VPC, API Gateway etc.)
• ELK Stack, Graphana, Opsgenie
• Kong Api Gateway

Our System

• Cloud Native, deployed in Kubernetes on AWS infrastructure
• Written in .NET, API First (REST) approach with thin UI client
• Written in microservices, DDD, CQRS, Event Based, Saga Pattern for Distributed Transactions
• Multi-tenant and multi-region (US, EU, China, APAC, Middle East deployed regions)
• Green field development, with less than 5 years old code, started from scratch in .NET Core

Requirements

Requirements description

Benefits

What Do We Offer?

Health & Well-being

• Private medical care, including a dental package, for you and your family
• Group life insurance for you and your partner
• Multisport card as part of the Worksmile package

Work & Growth

• 40 hours for professional development during work hours,
• Free group language lessons,
• Access to platforms like: OpenUp, GoodHabitz, Pluralsight

Additional Perks

• Worksmile cafeteria with 520 points per month,
• Referral bonus (starting from 6,500 PLN gross, depending on the position),
• Chill room with table football and PlayStation

Clause Regarding the Prohibition of Assistance Tools During Recruitment Interviews

In the interest of equal opportunity and transparency in the recruitment process, we would like to inform you that during job interviews (both remote and in-person), the following are not permitted: - the use of tools based on artificial intelligence (AI), including chatbots, response generators, translators, or content creation aids, - recording of interviews without prior and explicit consent from a company representative, - the use of applications that generate automatic notes or transcriptions of meetings (e.g., Notion AI, Otter.ai, Fireflies, etc.).