Senior C# / .NET Developer

Technologies we use

Expected

• C#
• .NET
• Microsoft Azure
• Oracle
• Sybase
• PostgreSQL
• Docker
• Kubernetes
• GitLab

Operating system

• Windows

About the project

We are currently looking for a Senior C# / .NET Developer to join the team of one of the world's leading global investment banks. The project is delivered together with a large international IT services company. For this role, Optiveum is the recruitment and contracting party, which means you will sign the cooperation agreement directly with us.

You will develop and maintain C#/.NET applications built as microservices and event-driven solutions, running on Docker and Kubernetes in Microsoft Azure and delivered through GitLab CI/CD.

Key Details:

Rate: 145–160 PLN/h (B2B), depending on experience

Work Model: Hybrid, 4 days per week from the client's office (non-negotiable), full-time

Location: Wrocław (candidates must live in or near Wrocław)

This is how we organize our work

This is how we work

• at the client's site
• you have influence on the technological solutions applied
• you focus on product development
• agile
• scrum

Your 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

Our requirements

• Around 10 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

This is how we work on a project

• Continuous Deployment
• Continuous Integration
• documentation
• issue tracking tools

Development opportunities we offer

• external training
• mentoring

Recruitment stages

• IT Partner & Bank Interviews
• Technical Interview & Live Coding
• Background Check
• Identity Verification
• Eligibility Review

• One interview with the IT services partner, followed by 1–3 interviews with the bank
• Technical tasks are done live: please have your programming environment set up and tested beforehand. The use of AI tools, coding assistants or code generators during interviews is not allowed
• The selected candidate will go through a background check by an external company (HireRight), covering identity, right to work, education and employment history, so the dates and employers in your CV must be accurate
• Your name in the application and CV must match your official ID document exactly (Polish citizens: please include all first names)
• Candidates who took part in a recruitment process for this IT services partner or this bank in the last 12 months cannot be considered

Interested? Apply now and help a leading Nordic bank stay ahead of security risks!

OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

Optiveum is acting as a sourcing partner for this role. You will be signing a cooperation agreement directly with our partner—a renowned IT contracting company with nearly 20 years of presence on the market.

The end client operates in the international public, defense, or government administration sector, leading large-scale, multi-million euro digital transformation projects.

This is how we work