Position Overview

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions. With over 7,400 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.

At CI&T;, we are seeking a highly skilled and motivated Mid/Senior Fullstack Developer (.NET/Javascript/Typescript) to join our team in Colombia. You will contribute to an innovative project in a collaborative, innovative, transforming, and multicultural environment.

Responsibilities

- Design, build, and maintain robust applications using the Microsoft .NET stack (C#, ASP.NET)
- Develop dynamic, modern front-end interfaces using JavaScript and associated frameworks/libraries
- Write efficient, scalable SQL Server queries, functions, and stored procedures supporting both on-prem and Azure PaaS
- Leverage OpenSearch as part of our backend architecture for search and data analytics
- Optimize and troubleshoot full-stack performance, scalability, and system reliability issues
- Conduct and participate in code reviews, ensuring adherence to clean code practices
- Collaborate with QA and product teams to understand requirements and deliver complete, tested features

Must-Have Skills

- 5+ years of professional experience as a software developer
- Strong expertise in: C#, ASP.NET, and .NET Core
- Modern JavaScript (e.g., Angular, React, or Vue)
- SQL Server (including query optimization and performance tuning)
- OpenSearch/Elasticsearch
- Git (branching, pull requests,



merge conflict resolution)
- Technical SEO knowledge covering canonical URLs, dynamic content rendering, and structured data optimization
- Deep understanding of full-stack applications and troubleshooting production issues
- Proven experience optimizing performance and identifying system bottlenecks
- Excellent communication skills—both verbal and written
- Ability to work autonomously and collaboratively in a fast-paced, agile environment

Nice-to-have Skills

- Familiarity with Azure PaaS services such as App Services, Azure Functions, and Storage Accounts
- Experience with Azure DevOps (pipelines, repositories)
- Working knowledge of geospatial data in PostgreSQL/PostGIS or similar

Join CI&T;, where we are driven by Collaboration, Innovation & Transformation. In our fast-evolving landscape, your contributions will not only enhance our projects but also pave the way for breakthroughs powered by Artificial Intelligence. Together, let’s shape a bright future.

Our benefits

- 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.

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📌 Mid/Senior Fullstack Developer (.NET/Javascript/Typescript), Colombia
🏢 Ci&T
📍 Colombia