Senior .NET Backend Engineer – Hybrid, CI/CD & SQL

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

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.