.NET Developer (f/m/x)

Sii Poland; Łódź; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Medical care

Profit sharing

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Job summary

Sii Poland is seeking an experienced backend developer to design and implement IT systems for a major Polish bank in Łódź. You will work with Microsoft technologies, collaborate with business users, and participate in Scrum ceremonies to deliver robust features.

The role requires 4+ years of C# and MS SQL experience, proficiency with .NET, EF, Web API, and CI/CD tools like Docker, Kubernetes, and Jenkins. Occasional on-site work is expected at the office.

Qualifications

• 4+ years of experience in back-end development with C# and MS SQL.
• Practical knowledge of .NET 4.8/6/8, Entity Framework, and Web API.
• Experience with CI/CD tools such as Docker, Kubernetes, Jenkins.
• Experience writing unit, automated, and E2E tests.
• Fluent English and willingness to work from the office periodically.

Responsibilities

• Lead design and implementation in IT systems based on Microsoft technologies.
• Collaborate with business users and IT teams including DevOps and QA.
• Participate actively in Scrum activities.
• Ensure high code quality with automated tests and documentation.
• Create and update technical documentation.

Skills

C# backend

MS SQL

Entity Framework

Web API

CI/CD

Tools

Docker

Kubernetes

Jenkins

Job description

Overview

Join the team supporting processes in the retail banking area at one of the largest banks in Poland. The team develops web-based systems and tools that assist daily work for ecosystem employees, automate processes, and serve as integration sources for other banking systems. If you are looking for a stable, long-term project and want to develop your programming skills while influencing product development, don’t hesitate and send your application today.

Responsibilities

• Leading design and implementation work in IT systems based on Microsoft technologies
• Collaboration with business users (gathering and analyzing requirements for new solutions) and other IT teams, including DevOps and QA
• Active participation in Scrum team activities
• Ensuring high code quality by creating automated, unit, and E2E tests
• Creating and updating technical documentation

Qualifications

• Minimum 4 years of experience in developing and enhancing back-end modules in C# with MS SQL
• Knowledge of .NET 4.8/6/8, Entity Framework, Web API
• Practical experience with CI/CD tools such as Docker, Kubernetes, Jenkins
• Experience writing unit, automated, and E2E tests
• Good command of English
• Willingness to work from the office at least once every two weeks

Benefits

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.