Senior Net Developer at Haptiq in Constanţa

About Webonise: Webonise  is a global technology company dedicated to delivering best in class software and digital solutions engineered to drive profitable and scalable growth for our clients. Operating as the nexus of portfolio management, growth, and optimization, Webonise offers SaaS platforms fueled by cutting-edge AI, a comprehensive end-to-end data management platform, and a suite of strategic services. Among our flagship offerings is Olympus FinTech, a dynamic solution empowering private equity, debt, and CLO managers with customizable and streamlined workflows, robust data management, and sophisticated reporting capabilities. Complementing this, Zymphony MarTech enhances omnichannel customer acquisition, retention, and lifetime value optimization through a centralized customer data platform. About the Role: Looking for a  Senior .NET Developer  to build software applications with .Net technologies, such as .Net MVC, C#, and SQL Server. You will be responsible for designing, coding with standard practices, testing applications, providing technical support, and maintaining software throughout its lifecycle. Key Duties and Responsibilities: Design maintainable, extensible components for a world-class fintech software suite Write clean, scalable code using .NET programming languages Develop automated tests for code under development Maintain code for various .Net applications and resolve any defects in systems Revise, update, refactor, and debug code Improve existing software Develop API and code documentation for systems under development Monitor everyday activities of the system and serve as an expert on applications and provide technical support. Ensure adherence to development standards and practices Skills, Qualification & Experience: 5+ years of experience as a software engineer Expertise in the MS Entity framework Strong proficiency in C#, ASP.NET, .Net MVC, and web APIs SQL Server schema design, stored procedures, and table creation Familiarity with architectural patterns such as Model-View-Controller (MVC) Familiarity with working of asp dot net core application Test framework automation experience (Nunit, Xunit, Mstest) .Net core command, framework, and build experience Knowledge of secure coding principles (Owasp, privilege escalation) Azure know-how (App Service, Service Bus, Sql, Monitor, etc.) Familiarity with architecture styles/APIs (REST, RPC) Experience with alerting mechanisms for API’s in case of any failures Understanding of Agile methodologies Experience with concurrent development source control (Git) B.S. Computer Science degree or related degree Javascript and HTML knowledge Excellent communication skills Ability for critical thinking & creativity Having a systematic and logical approach to problem-solving, team working skills Nice-to-haves: SPA framework experience (React, Vue, Angular) Fintech experience Benefits of working with us: Work in a highly professional team. Informal and friendly atmosphere in the team; Ability to work from our comfortable downtown office in Warsaw; Paid vacation - 20 business days per year, 100% sick leave payment; 5 sick days per year; Equipment provision; Inflation-protected wages with regular revision of compensation conditions; Legal and Accounting support in Poland; Partially compensated educational costs (for courses, certifications, professional events, etc.); Medical insurance (after the end of the probationary period); English and Polish courses - 2 times a week; Bright and memorable corporate life: corporate parties 2 times a year, gifts to employees in honor of life events.