We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.With over 8.000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.
Position Overview:
As a Senior Software Developer, you will work on the evolution and stability of a large-scale, mission-critical POS platform, combining modern C# .NET development with themaintenance of legacy components. This position focuses on SQL Server–drivensystems, production reliability and real-world problem solving in high-availabilityenvironments.
The onboarding phase will take place in CI&T's office in Brazil, with an estimatedduration of 2 weeks. Therefore a valid passport and availability to travel abroad isrequired for this position.
Key Responsibilities:
● Act as a key contributor to the support and evolution of applications built with C#.NET and SQL Server, interacting with legacy components when necessary, andcontributing to the creation of innovative and robust solutions.● Develop, debug, and optimize complex T-SQL stored procedures supporting criticalbusiness workflows.● Maintain and enhance Windows Services and background processes integratedwith external systems and hardware.● Diagnose and resolve production issues in on-premises environments, ensuringoperational continuity.
● Collaborate with product, support, and engineering teams to deliver reliable andscalable solutions.● Contribute to modernization initiatives and continuous improvement of engineeringpractices.● Continuously maintain and enhance existing systems, identifying opportunities foroptimization and innovation.
Must-Have Skills:
● SQL Server: Proficiency in SQL Server, including database design, queryoptimization, and data maintenance. Experience in evolving and maintainingqueries and procedures.● C# .NET Framework: Strong experience building and maintaining WinFormsapplications and Windows Services.● Legacy Systems Exposure: Familiarity working with legacy codebases (includingVisual Basic 6).● GIT Repository: Experience using GIT for code versioning, including branching,merging, and conflict resolution.● Clear and Effective Communication in English: Ability to convey informationconcisely and understandably, facilitating team collaboration and understandingwith stakeholders.● Proactivity and Autonomy: Ability to take the initiative in problem-solving andmanage tasks independently, delivering results efficiently.
Nice-to-Have Skills:
● Experience working with legacy systems and modernization efforts.● Experience in supporting complex technical solutions● Familiarity with COM/ActiveX integration.● Cloud experience (Azure) or Infrastructure as Code (Terraform)., you will work on the evolution and stability of a large-scale, mission-critical POS platform, combining modern C# .NET development with themaintenance of legacy components. This position focuses on SQL Server–drivensystems, production reliability and real-world problem solving in high-availabilityenvironments.
The onboarding phase will take place in CI&T's office in Brazil, with an estimatedduration of 2 weeks. Therefore a valid passport and availability to travel abroad isrequired for this position.
Key Responsibilities:
● Act as a key contributor to the support and evolution of applications built with C#.NET and SQL Server, interacting with legacy components when necessary, andcontributing to the creation of innovative and robust solutions.● Develop, debug, and optimize complex T-SQL stored procedures supporting criticalbusiness workflows.● Maintain and enhance Windows Services and background processes integratedwith external systems and hardware.● Diagnose and resolve production issues in on-premises environments, ensuringoperational continuity.
● Collaborate with product, support, and engineering teams to deliver reliable andscalable solutions.● Contribute to modernization initiatives and continuous improvement of engineeringpractices.● Continuously maintain and enhance existing systems, identifying opportunities foroptimization and innovation.
Must-Have Skills:
● SQL Server: Proficiency in SQL Server, including database design, queryoptimization, and data maintenance. Experience in evolving and maintainingqueries and procedures.● C# .NET Framework: Strong experience building and maintaining WinFormsapplications and Windows Services.● Legacy Systems Exposure: Familiarity working with legacy codebases (includingVisual Basic 6).● GIT Repository: Experience using GIT for code versioning, including branching,merging, and conflict resolution.● Clear and Effective Communication in English: Ability to convey informationconcisely and understandably, facilitating team collaboration and understandingwith stakeholders.● Proactivity and Autonomy: Ability to take the initiative in problem-solving andmanage tasks independently, delivering results efficiently.
Nice-to-Have Skills:
● Experience working with legacy systems and modernization efforts.● Experience in supporting complex technical solutions● Familiarity with COM/ActiveX integration.● Cloud experience (Azure) or Infrastructure as Code (Terraform).
Collaboration is our superpower, diversity unites us, and excellence is our standard. We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.