Senior Creatio Full-Stack Developer (C# / Angular) | Poland | Deloitte Digital

Deloitte Digital delivers digital transformation projects globally, combining business strategy, creative innovation, and cutting-edge technology orchestration. The team works on Polish and international projects across various industries.

• 5+ years of commercial experience with C#/.NET
• Experience with Angular and modern front-end development
• Experience with Creatio platform or similar CRM / low-code platforms
• Hands-on experience with API and system integrations (REST is essential; SOAP is a plus)
• Understanding of asynchronous programming (async/await)
• Experience with Git for version control
• Proficiency in English at minimum C1 level, both written and spoken
• EU citizenship or valid work permit to work in Poland

Nice to have:

• Experience with databases (MS SQL Server, PostgreSQL, Oracle)
• Familiarity with RxJS and reactive programming concepts
• Experience with unit testing (e.g., NUnit, mocking frameworks)
• Knowledge of JavaScript / TypeScript, CSS/SASS
• Exposure to cloud platforms (Azure, AWS, GCP)

• Develop and enhance back-end customisations on the Creatio platform using C#/.NET
• Build and maintain front-end components using Angular
• Design and implement integrations with external systems (REST/SOAP APIs)
• Create and maintain web services and reusable components
• Debug issues, resolve defects, and support application releases
• Collaborate with analysts, architects, and cross-functional teams
• Contribute to application performance optimisation and scalability

EU citizenship or valid work permit to work in Poland is required.