.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.