.NET Developer

.NET Developer

Salary: Up to 120 PLN/h net + VAT (B2B)

Location: Warsaw, Poland

Work Model: Hybrid (75% remote)

We are looking for an experienced .NET Developer to join the team of our client—a prominent and stable financial institution.

Please note: Optiveum acts as the recruitment partner and the direct contracting party for this role. The successful candidate will sign a B2B cooperation agreement directly with us.

Your Responsibilities

- Designing and implementing IT systems, including Oracle-based solutions.
- Collaborating with business end-users to gather and analyze requirements, specifically detailing broad business concepts into actionable tasks.
- Actively participating in internal software testing.
- Creating and updating technical and functional system documentation.
- Collaborating on the development of new solutions and shaping technical directions.
- Implementing data quality improvements in systems and applications exporting data to the data warehouse.
- Reviewing technical specifications and project documentation provided by third-party external vendors.

What We Expect

- A minimum of 3 years of programming experience using C#, .NET (including 4.5), WCF, SQL, SQL Server Integration Services (SSIS), HTML, and MVC .NET
- Proficiency in JavaScript, jQuery, jQuery UI, HTML5, and CSS3.
- Familiarity with the Visual Studio Ultimate 2013 environment.
- Solid experience in developing web applications.
- Knowledge of unit testing and test automation processes.
- Strong understanding of design patterns and Object-Oriented Programming (OOP) principles.
- Practical experience designing and developing IT systems for the financial sector or organizations of similar complexity.
- Strong analytical thinking skills with the ability to precisely define business and system requirements.
- Excellent communication and negotiation skills for effective collaboration with business clients, internal teams, and external suppliers.
- High degree of independence, strong goal orientation, and great organizational skills.
- Native Polish and Advanced English , enabling seamless work with technical documentation.

Nice to Have

- Basic understanding of UX design principles.
- Familiarity with Agile and XP methodologies.
- Knowledge of PL/SQL and Oracle databases.
- Practical experience with at least one CASE tool (e.g., Sparx Systems Enterprise Architect) and UML.
- Experience working in a matrix organization and knowledge of ITIL.

What We Offer

- A highly competitive rate of up to 120 PLN/h net.
- A flexible hybrid work environment (75% remote) with occasional visits to the Warsaw office.
- A technologically engaging project within a highly stable industry.
- A transparent and direct B2B contract signed seamlessly with Optiveum .
- Full professional support from our team throughout the recruitment process and your contract duration.