Senior .NET Engineer - Backend APIs & CI/CD

CI&T; Colombia; On-site; COP 110,000,000 - 170,000,000; Full time

Benefits offered by this job

Maternity and Parental leaves

Mobile services subsidy

Life insurance

CI&T University

Colombian Holidays

Paid Vacations

Job summary

CI&T is hiring a Senior .NET Engineer to join a multicultural team spanning Brazil, Colombia, the UK, and the USA. You will design, build, and maintain backend services with C#, ADO.NET, and SQL Server, and craft SOAP and REST APIs. All communication is in English.

You will own API design, implement CI/CD workflows, review code, and mentor juniors while driving performance improvements and system integration in a fast-paced environment.

Qualifications

• Strong experience with .NET Framework and .NET Core in production systems.
• Deep knowledge of ADO.NET and SQL Server.
• Experience with database design and performance optimization.
• Hands-on experience building SOAP and REST APIs.
• Ability to work with XML data.
• Strong understanding of software design patterns and best practices.
• Advanced English proficiency.
• Ability to work well in multicultural, fast-paced teams.

Responsibilities

• Design, build, and maintain back-end services using C#, ADO.NET, and SQL Server.
• Create and improve SOAP and REST APIs following best practices and version standards.
• Write unit tests and integration tests to ensure services work correctly.
• Find and fix problems in the code (root-cause analysis).
• Help integrate different systems and services using design patterns.
• Review other developers’ code and provide guidance to junior team members.
• Learn about new technologies and find ways to improve current solutions.
• Work on CI/CD workflows (automated testing and deployment) to improve team processes.

Job description

CI&T is hiring a Senior .NET Engineer to join a multicultural team spanning Brazil, Colombia, the UK, and the USA. You will design, build, and maintain backend services with C#, ADO.NET, and SQL Server, and craft SOAP and REST APIs. All communication is in English.

You will own API design, implement CI/CD workflows, review code, and mentor juniors while driving performance improvements and system integration in a fast-paced environment.