Logo for Ci&T

[Job - 32702] Senior .NET Developer, Colombia

Role overview

Summary

This role is for a Senior .NET Engineer at CI&T, focusing on back-end development and system integration. You will collaborate with teams across multiple countries, contributing to the development of reliable services and APIs while mentoring junior developers.

Qualifications

  • Strong experience with .NET Framework and .NET Core in production systems.
  • Solid understanding of ADO.NET and SQL Server, with hands-on experience in database design and performance tuning.
  • Proficient in developing SOAP and RESTful services, including XML serialization/deserialization.
  • Strong grasp of software design patterns and best practices.
  • Advanced English proficiency is a must.

Responsibilities

  • Develop and maintain back-end services using C#, ADO.NET, and SQL Server.
  • Create and enhance SOAP and REST APIs, ensuring adherence to best practices and versioning standards.
  • Guarantee the reliability of services through comprehensive unit and integration testing, troubleshooting, and root-cause analysis.
  • Conduct code reviews and mentor junior team members, sharing expertise and insights.

Key facts

Hard skills

Other skills

  • Communication
  • Collaboration
  • Teamwork
  • Adaptability
  • Open Mindset

About the company

Ci&T logo

Ci&T

  • IT Services & Consulting
  • 5,001–10,000
We are your tech transformation specialists, combining human expertise with AI to create scalable solutions that help you Navigate Change. With over 6,500 CI&Ters and partnerships with more than 1,000 clients, we have a 30-year history of transformation.

Your match analysis

See how your profile stacks up against this role.

We compared the job requirements to your profile to show where you're strong and where you fall short.

Job description

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.


Join Us as a Senior .NET Engineer! 😃 

Are you ready to step into an exciting role where your back-end development skills will shine? We’re seeking a Senior .NET Engineer to become a vital part of our dynamic team, working collaboratively across Brazil, Colombia, the UK, and the USA—all while communicating in English!

What You’ll Do:

  • Design & Build: Develop and maintain back-end services using C#, ADO.NET, and SQL Server.
  • API Development: Create and enhance SOAP and REST APIs, ensuring adherence to best practices and versioning standards.
  • Service Reliability: Guarantee the reliability of our services through comprehensive unit and integration testing, troubleshooting, and root-cause analysis.
  • Collaborative Integration: Work on integrating various systems and services while utilizing effective software design patterns.
  • Mentorship & Code Reviews: Conduct code reviews and mentor junior team members, sharing your expertise and insights.
  • Stay Current: Keep up with emerging technologies and industry trends to continuously improve our solutions.
  • CI/CD Contribution: Play an integral role in our CI/CD workflows, enhancing our development efficiency.

What We’re Looking For:

  • Experience: Strong experience with .NET Framework and .NET Core in production systems.
  • Database Skills: Solid understanding of ADO.NET and SQL Server, with hands-on experience in database design and performance tuning.
  • API Knowledge: Proficient in developing SOAP and RESTful services, including XML serialization/deserialization.
  • Design Patterns: Strong grasp of software design patterns and best practices.
  • Communication Skills: Effective communicator who thrives in fast-paced, multicultural teams.
  • Language Proficiency: Advanced English proficiency is a must.

Soft Skills That Matter:

  • Proactive Mindset: Take ownership of tasks with a focus on continuous improvement.
  • Collaboration: Strong communication skills across both technical and non-technical audiences.
  • Team Spirit: A collaborative team player who values shared success.
  • Adaptability: Ability to navigate ambiguity and shifting requirements with ease.

Nice-to-Have Skills:

  • Experience with cloud platforms, preferably Azure.
  • Familiarity with specification-driven development and agentic approaches.
  • Exposure to Agile development methodologies.

If you’re a seasoned back-end developer eager to tackle complex challenges in a dynamic environment, we invite you to apply and become a part of our diverse team!

#LI-THAI23

Our benefits include:   - Premium Healthcare - Meal voucher - Maternity and Parental leaves - Mobile services subsidy - Sick pay-Life insurance - CI&T University    - Colombian Holidays - Paid Vacations And many others.      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.

Related jobs

See all .NET Developer jobs

Other jobs at Ci&T