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[Job - 31545] Senior .NET Developer

Role overview

Qualifications

  • 6+ years of professional software development experience with .NET (C#)
  • Experience building and consuming REST APIs
  • Practical experience with Microsoft Azure services
  • Experience with containerized deployments (Docker)

Responsibilities

  • Design and build RESTful APIs and services in .NET that integrate a new partner-facing portal with internal loan systems
  • Implement business logic per documented API contracts and business rules
  • Build and consume asynchronous, event-driven integrations
  • Write automated tests and participate in code review

Key facts

Hard skills

Other skills

  • Communication

About the company

Ci&T logo

Ci&T

Digital Transformation Consulting

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.

Company details

IndustryDigital Transformation Consulting
Company size5001 - 10000

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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.


Responsibilities: • Design and build RESTful APIs and services in .NET that integrate a new partner-facing portal with internal loan systems.
• Implement business logic per documented API contracts and business rules.
• Build and consume asynchronous, event-driven integrations (message/queue-based notifications).
• Write automated tests and participate in code review.
• Deploy and operate services in containers on Azure, using GitLab CI pipelines.
• Troubleshoot and resolve defects across Development, QA, UAT, and Production environments.
• Collaborate with the Business Analyst and Software Architect to clarify requirements and edge cases.
Requirements: • 6+ years of professional software development experience with .NET (C#), including independent ownership of complex features end-to-end.
• Experience building and consuming REST APIs.
• Practical experience with Microsoft Azure services (App Services, Functions, Service Bus, or equivalent).
• Experience with containerized deployments (Docker).
• Experience with Git and CI/CD pipelines (GitLab CI or equivalent).
• Familiarity with automated testing frameworks (unit and integration tests).
• Good English communication skills (B2+) — daily collaboration with a US-based team.
Nice to Have: • Experience with OAuth 2.0 / bearer-token security patterns.
• Experience with event-driven or asynchronous architectures (Service Bus, pub/sub).
• Experience in mortgage, lending, or financial services.
• Experience integrating with legacy or mainframe systems via APIs. 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.

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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