CI&T
CI&T
CI&T is a global technology transformation company founded in 1995, helping organizations modernize how they build, operate, and engage through digital products and services. Its work includes application modernization, cloud solutions, AI and data analytics, customer experience, product design, strategy consulting, and immersive experiences. With expertise serving industries such as consulting, healthcare, and marketing, CI&T brings together technology and business capabilities to support organizations pursuing growth and more efficient operations.

Senior .NET Developer | CI&T | Colombia Remote

Join CI&T as a Senior .NET Engineer developing scalable C# back-end services and integrations for enterprise AI transformation solutions. Work with teams across Colombia, Brazil, the UK, and the USA in English.

Description

  • Build and maintain back-end services with C#, ADO.NET, and SQL Server
  • Develop and enhance versioned, secure SOAP and REST APIs according to engineering best practices
  • Strengthen service reliability through automated testing, troubleshooting, monitoring, and root-cause analysis
  • Integrate systems and services using suitable software design patterns
  • Review code, offer technical guidance, and mentor junior engineers
  • Evaluate emerging technologies and industry developments to improve existing solutions
  • Support CI/CD workflows and practices that improve development efficiency and deployment quality
  • Deliver dependable, high-performance back-end services and integrations
  • Work effectively across time zones and cultures, using English as the primary language

Requirements

  • Demonstrated production experience with .NET Framework and .NET Core
  • Practical experience developing back-end services with C#, ADO.NET, and SQL Server
  • Proven ability to build and evolve SOAP and RESTful services, including versioning and established best practices
  • Strong knowledge of ADO.NET, SQL Server, database design, and performance tuning
  • Proficiency in XML serialization and deserialization
  • Solid command of software design patterns and sound engineering practices
  • Experience with unit and integration testing, troubleshooting, and root-cause analysis to maintain service reliability
  • Clear communication skills for multicultural, fast-moving work environments
  • Advanced English proficiency, with all communication conducted in English
  • Experience with cloud platforms, ideally Microsoft Azure
  • Familiarity with specification-driven development and agentic software-development approaches
  • Exposure to Agile methods, including Scrum and Kanban
  • A proactive approach to ownership and continuous improvement
  • Ability to explain complex technical concepts to both technical and non-technical audiences
  • Experience collaborating with cross-functional teams
  • Adaptability in changing environments

Benefits

  • Premium healthcare coverage
  • Meal voucher
  • Maternity and parental leave
  • Mobile services subsidy
  • Sick pay and life insurance
  • Access to CI&T University
  • Colombian public holidays
  • Paid vacation

Related Jobs