Informacje o stanowisku

About the role 

We are looking for an experienced developer to join us in one of two ongoing projects within ista: 

• Project A – .NET-focused 
  Development and maintenance of a work planning web application used by hundreds of users. 
• Project B – SQL / Data-focused 
  Supporting and evolving a data-heavy system with strong emphasis on SQL Server querying, performance, and operational stability. 

? One role, one recruitment process – the project assignment will depend on your strengths and experience. 

Tech Stack 

• Backend: .NET, .NET Core, C# 
• Frontend: JavaScript / TypeScript, HTML, CSS (project-dependent) 
• Databases: SQL Server (T-SQL, Stored Procedures) 
• Tools & Processes: Git, CI/CD, Agile/Scrum, REST APIs 
• Other: Legacy systems, code quality tools, testing frameworks 

Must-have 

• 5+ years of professional experience as a developer
• Very strong SQL Server skills (T-SQL, performance optimisation)
• Solid experience in .NET / C# or strong motivation to deepen it
• Experience with web applications
• Analytical, solution-oriented mindset
• Strong communication skills and team attitude
• English B2+
• Openness to working in an international environment

Nice to have 

• SSIS (deployment, maintenance, package creation)
• BI / Data Warehousing experience
• Experience with legacy systems
• Knowledge of frontend frameworks
• Familiarity with CI/CD pipelines

About the role 

We are looking for an experienced developer to join us in one of two ongoing projects within ista: 

• Project A – .NET-focused 
  Development and maintenance of a work planning web application used by hundreds of users. 
• Project B – SQL / Data-focused 
  Supporting and evolving a data-heavy system with strong emphasis on SQL Server querying, performance, and operational stability. 

? One role, one recruitment process – the project assignment will depend on your strengths and experience. 

Tech Stack 

• Backend: .NET, .NET Core, C# 
• Frontend: JavaScript / TypeScript, HTML, CSS (project-dependent) 
• Databases: SQL Server (T-SQL, Stored Procedures) 
• Tools & Processes: Git, CI/CD, Agile/Scrum, REST APIs 
• Other: Legacy systems, code quality tools, testing frameworks 

,[Depending on the project, you will: , Project A – .NET-oriented , Implement new features in a web application , Participate in the full development lifecycle (analysis → design → implementation) , Maintain and refactor legacy code , Ensure high code quality and alignment with standards , Collaborate closely with other developers (incl. .NET & PHP teams) , Project B – SQL-oriented , Write advanced ad-hoc T-SQL queries , Create, deploy and optimize stored procedures , Perform performance tuning and query optimisation , Support day-to-day SQL Server operations: user creation, permissions, SQL Server Agent jobs , Work with large, complex databases (100+ tables / procedures) Requirements: .NET Additionally: Sport subscription, Training budget, Private healthcare, International projects, Free coffee, Bike parking, Playroom, Shower, Free snacks, Free beverages, Free parking, In-house trainings, No dress code.

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