Senior Backend Developer w Katowice, Polska

Expected, C#, .NET, Entity Framework, PostgreSQL, Elasticsearch

Optional, SoapUI, Linux, Docker

Operating system, Windows, Linux

About the project, 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., , 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

This is how we work, in house

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

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 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, Continuous Deployment, Continuous Integration

Development opportunities we offer, development budget, external training, industry-specific e-learning platforms, intracompany training, support of IT events, technical knowledge exchange within the company

Benefits, sharing the costs of sports activities, private medical care, sharing the costs of foreign language classes, sharing the costs of professional training & courses, life insurance, remote work opportunities, flexible working time, fruits, integration events, no dress code, video games at work, coffee / tea, drinks, leisure zone, employee referral program, charity initiatives

Recruitment stages, Intro Call (20 min), Technical interview, Feedback & Final Decision

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

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, https://jobeax.com/link/bgVItMDnqMPQcnsC, Fireflies, etc.).

Shiji Poland, Shiji Group provides software solutions and services for the hospitality, food service, retail and entertainment industries, ranging from hotel management solutions, to food and beverage and retail systems, payment gateways, data management, online distribution and more., , Founded in 1998 as a network solutions provider for hotels, and later changed to a software provider for the whole consumer market, Shiji Group today comprises 5,000 employees in 80+ subsidiaries and brands, serving over 91,000 hotels, 200,000 restaurants and 600,000 retail outlets., , Shiji is committed to connecting the global business of hospitality. We provide an integrated suite of technological solutions that empower hotel, retail, food, and entertainment companies to better connect with their guests.