Backend Developer

Shiji PolandKatowicenofluffjobsobjavljeno 14. 09. 2026.
Obavezno:C#GitAWSDockerKubernetesCloudScrumCI/CDMicroservicesFinTechSecurity

Daylight PMS

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.

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 9 (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

Hiring Process 🚀

1️⃣ Intro Call (20 min) – A quick chat with our HR team to get to know each other and see if we're a good match.

2️⃣ Technical Interview – A deep dive into your experience and problem-solving approach with our team.

3️⃣ Feedback & Final Decision – We value your time, so we won’t keep you waiting. Expect clear feedback and next steps shortly after.

Sounds good? Let’s talk! 😊

Daily tasks

  • 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

Requirements

Experience 2+ years in a similar role

Advanced Object-Oriented and or Functional Programming paradigms

Good knowledge of C#, .NET, Web API (REST), Entity Framework, or any other ORM (Dapper/NHibernate, etc.)

Knowledge of DBs, such as PostgreSQL or Elastic Search

Good Knowledge of testing (Unit/Integration tests)

The capability of writing clean code along with tests

Being an open-minded, proactive person

Nice to have:

Experience with Integration Systems and patterns (XML/SOAP, JSON, CSV, FTP or HTTP message transformation/delivery, competing consumers pattern, pipes and filter, off loading queue etc.)

Experience with distributed systems, transactions, multi-tenant and multi-region systems

Basics of Linux, Docker

Must have: .NET, SQL, Microservices architecture, Unit testing, Integration test

Nice to have: Docker