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Senior Application Developer

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Hybrid

Senior Application Developer

Deloitte

Senior Application Developer

Skills

SQL QueriesTypescriptJavaC#.NETSpring BootMicrosoft SQL ServerAzure

7 days ago

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Important information


Contract type:

Permanent

Location:

Rzeszów, Poland

Work mode:

Hybrid

Published on:

15 October 2026

What they need


Description & Requirements Who we are looking for

  • 10+ years of professional experience in software development.
  • Strong expertise in C# and .NET technologies, particularly ASP.NET Core.
  • Experience with Entity Framework and relational databases.
  • Solid knowledge of APIs, integration patterns, and SQL.
  • Hands-on experience with Angular and TypeScript and/or Java Spring Boot.
  • Experience with Microsoft SQL Server, Azure Database, and Microsoft IIS.
  • Familiarity with Azure services such as Azure Functions, Service Bus, API Management, Logic Apps, Azure Data Factory, and Container Apps is an advantage.
  • Strong analytical, problem-solving, and communication skills.
  • Experience working in Agile development environments.

Your future role As a Senior Application Developer, you will play a key role in designing, developing, and integrating modern enterprise applications that support the digitalization of business processes across the organization.

Your Responsibilities:

  • Design, develop, and maintain modern, scalable applications and services.
  • Collaborate in agile software development and integration projects.
  • Drive the onboarding of new applications into the enterprise application landscape.
  • Develop and implement integration solutions using Microsoft Azure Integration Services.
  • Enable seamless integration across business-critical systems and platforms.
  • Analyze, document, and optimize integration processes, interfaces, and technical solutions.
  • Work closely with cross-functional teams to deliver end-to-end digital solutions and drive innovation.

What we offer

  • Stable job in multinational company based on employment contract;
  • Working in flexible hybrid model - partially from home and the office;
  • Great opportunity for professional development (individual training plan, soft skills and technical trainings, access to modern training platforms e.g. Udemy for Business, LinkedIn Learning);
  • Structured onboarding process and Buddy program for new joiners;
  • Open and friendly organizational culture based on the pillars of well-being and diversity & inclusion

About Deloitte Deloitte is a variety of people, experience, industries and services we deliver in 150 countries of the world. It is an intellectual challenge, a good starting point for your career, and an excellent opportunity for continuous development and gaining valuable life experiences. What you only must do is to take the first step – press the apply button and send us your CV, go through all the stages of the recruitment process and sign a contract with us. Deloitte is simply your best choice.

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