Mid-Level .NET Developer

CI&T

Mid-Level .NET Developer focused on back-end development for AI-driven solutions at CI&T. Collaborate with teams across multiple countries to deliver high-quality software solutions.

Posted 7/7/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AzureCloud.NETSOAPSQL

About the role

Key responsibilities & impact

Design, build, and maintain back-end services using C#, ADO.NET, and SQL Server.
Implement and evolve SOAP and REST APIs, ensuring adherence to best practices and versioning standards.
Ensure service reliability through unit and integration testing, troubleshooting, and root-cause analysis.
Collaborate on integration between various systems and services, applying software design patterns.
Conduct code reviews and provide mentorship to junior team members.
Stay updated with emerging technologies and industry trends, applying them to enhance existing solutions.
Contribute to CI/CD workflows and best practices to improve development efficiency.

Requirements

What you’ll need

Strong experience with .NET Framework and .NET Core in production systems.
Solid understanding of ADO.NET and SQL Server, with experience in database design and performance tuning.
Hands-on experience with SOAP and RESTful services.
Proficiency in XML serialization/deserialization.
Strong understanding of software design patterns and best practices.
Effective communication skills and resilience in fast-paced, multicultural teams.
Advanced English proficiency.
Proactive ownership of tasks with a mindset for continuous improvement.
Strong communication skills across technical and non-technical audiences.
Collaborative team player who values shared success.
Ability to adapt to ambiguity and shifting requirements.
Experience with cloud platforms, preferably Azure.
Familiarity with specification-driven development and agentic approaches to software development.
Exposure to Agile development methodologies.

Benefits

Comp & perks

Health and dental insurance
Meal and food allowance
Childcare assistance
Extended paternity leave
Partnerships with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass
Profit sharing and results participation (PLR)
Life insurance
Continuous learning platform (CI&T University)
Discount club
Free online platform dedicated to physical, mental, and overall well-being
Pregnancy and responsible parenting course
Partnerships with online learning platforms
Language learning platform
And many more!

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

C# ProgrammingADO.NETSQL ServerSOAP ServicesRESTful ServicesXML Serialization/DeserializationSoftware Design PatternsDatabase DesignPerformance TuningCI/CD Workflows

Soft Skills

Effective CommunicationCollaborative Team PlayerProactive OwnershipResilience in Fast-Paced EnvironmentsAdaptability to Ambiguity