Senior Fullstack Developer

At SD Worx Poland, we are focused on building capability and flexibility to meet the growth of the business whilst increasing the profitability across the organisation. We support SD Worx on most of the business areas such as HR, Finance, Marketing, Software Development, Testing, Implementation and Service Delivery.

• 5+ years of experience in .NET development in complex software environments
• Experience with Angular
• ORM knowledge: NHibernate or Entity Framework
• Experience with NServiceBus
• Familiar with Git, Azure DevOps, CI/CD pipelines
• Strong background in test automation
• Strong SQL knowledge
• Experience building and consuming Web APIs
• Understanding of web security principles
• Fluency in English (spoken and written)

Nice to have:

• Knowledge of OpenID Connect
• Experience with security, authentication, and authorization
• Front‑end experience with Bootstrap
• Willingness to delve into the world of Belgian payroll and tax legislation

• Develop a deep functional understanding of our domain, with a strong focus on Belgian wage and tax regulations
• Take ownership of complete features: from functional analysis and technical design to implementation, testing, monitoring, and maintenance
• Monitor and safeguard production systems, ensuring daily processes run smoothly and addressing incidents with priority and precision
• Investigate and track down complex issues in existing code, balancing pragmatism with long‑term maintainability
• Think critically and contribute functional and architectural ideas that simplify workflows and improve product quality
• Participate actively in all stages of the product lifecycle: ideation, development, production, and continuous improvement
• Collaborate with infrastructure, support, and operational teams to ensure robust, performant deployments
• Perform code reviews and champion best practices in clean code, maintainability, testability, and security
• Share knowledge and help cultivate a high‑standard engineering culture within the team

SD Worx embraces diversity in the workplace. Diversity brings inspiration and innovation to our company. We particularly welcome applications from qualified talent, regardless of origin, nationality, gender, skin color, ethnic and social background, religion, age, disability, sexual orientation, or stage of life.