Arc Consulting is a fast-growing consulting and technology company (part of Lyvia Group). We deliver ERP, Robotic Process Automation (RPA), workflow, and IT transformation solutions for clients across Poland and Europe. We’re expanding our Digital Transformation team with an .NET Developer who will build scalable, end‑to‑end automations.Your everyday impact: Design, build, and evolve business applications using .NET (ASP.NET Core, Web API, EF Core) Prepare solution concepts and technical designs in collaboration with architects and business stakeholders. Estimate effort and enhance existing solutions based on client requirements and best practices. Implement features, optimize performance, write unit/integration tests, and provide support during releases. What makes you a great fit  Commercial experience with .NET / C# and ASP.NET Core (MVC/Web API).  Hands-on with Entity Framework (preferably EF Core) and MS SQL Server (SQL/T‑SQL).  Good understanding of front‑end basics: JavaScript (preferably React), HTML, CSS (Bootstrap).  Familiarity with RESTful services and SOAP; confident working with JSON/XML.  Experience with Git and common ALM/issue tracking tools (e.g., Azure DevOps, GitHub/Jenkins/Jira).  Quality mindset: unit tests, automated testing fundamentals, and code reviews. Fluent English (B2–C1) for an international environment. Degree in Computer Science, Information Technology, Software Engineering, or a related technical field. Nice to haveKnowledge of business processes (e.g., finance, retail, manufacturing).What do you gain by joining Arc? B2B contract or Employment Contract. Flexible work model: remote, hybrid, or on-site in Krakow. Participation in projects with international clients. Private medical care, Multisport card, and a training budget. Mentorship support from experienced consultants. Great atmosphere, integration events, and annual company trips.