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Shiji Poland

Senior Backend Developer

Shiji Poland Show all offers
16500 - 21000 PLN
Hybrid
Senior
Katowice
Expires Oct 15, 2026
4 days ago

In short

Senior Backend Developer role in Katowice. Responsibilities include requirement grooming, feature implementation, code reviews, and developer guidance. Requires 4+ years experience, C#, .

NET, Web API, ORM, PostgreSQL/Elastic Search, and unit/integration testing.

Keywords

C# .NET Web API REST Entity Framework PostgreSQL Elastic Search Unit Testing Integration Testing Gitlab

AI-written summary based on the listing content.

Technologies we use

About the project

This is how we organize our work

This is how we work

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 requirements

  • Experience 4+ 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

Optional

  • 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

What we offer

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

This is how we work on a project

Development opportunities we offer

Benefits

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

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Published 2026-09-15
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