Senior C#/.NET Engineer (Hybrid) - Cloud Microservices

Optiveum; Kraków; Hybrid; PLN 186,000 - 220,000; Full time

Job summary

Optiveum is seeking a Senior C# / .NET Developer to join a leading global investment bank project based in Kraków. The role focuses on building microservices, cloud-native solutions on Azure, and CI/CD pipelines via GitLab, with Docker and Kubernetes in a hybrid work arrangement.

You will develop and maintain high‑quality C#/.NET applications, collaborate with cross‑functional teams, and ensure scalable, reliable software.

Qualifications

• 8+ years of commercial software development experience.
• Strong experience with C#/.NET.
• Experience with microservices and event-driven architecture.
• Experience working with Microsoft Azure.
• Knowledge of Oracle, Sybase or PostgreSQL databases.
• Experience with Docker and Kubernetes.
• Experience with GitLab CI/CD pipelines.
• Knowledge of software development and deployment best practices.
• Fluent English.
• Polish or EU citizenship, or a permanent residence / work permit valid for at least 12 months.

Responsibilities

• Develop and maintain applications using C#/.NET
• Design and implement microservices and event-driven solutions
• Develop and support cloud-based applications on Microsoft Azure
• Work with Oracle, Sybase or PostgreSQL databases
• Build, deploy and maintain applications using Docker and Kubernetes
• Create and enhance GitLab CI/CD pipelines
• Collaborate with development teams to deliver scalable and reliable solutions

Skills

C#/.NET

Microservices

Event-driven architecture

Microsoft Azure

Docker

Kubernetes

GitLab CI/CD

Fluent English

Tools

Oracle

Sybase

PostgreSQL

Job description

Optiveum is seeking a Senior C# / .NET Developer to join a leading global investment bank project based in Kraków. The role focuses on building microservices, cloud-native solutions on Azure, and CI/CD pipelines via GitLab, with Docker and Kubernetes in a hybrid work arrangement.

You will develop and maintain high‑quality C#/.NET applications, collaborate with cross‑functional teams, and ensure scalable, reliable software.