Back to Jobs

[Job-28385] Developer .NET Senior/Specialist, Brazil

Remote, USA Full-time Posted 2026-06-25
We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.With over 8,000 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.

We are looking for a Senior .NET Engineer to join our team and contribute to the development and integration of complex software solutions focused on back-end development. This role will require working closely with a multicultural team spread across Brazil, Colombia, the UK, and the USA, with all communication conducted in English.

Key Responsibilities: Design, build, and maintain back-end services using C#, ADO.NET, and SQL Server. Implement and evolve SOAP and REST APIs, ensuring 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 up to date with emerging technologies and industry trends, applying them to improve existing solutions. Contribute to CI/CD workflows and best practices to enhance development efficiency.

Required Skills and Qualifications: 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. Experience with IA Platforms; Strong understanding of software design patterns and best practices. Effective communication skills and resilience in fast-paced, multicultural teams. Advanced English proficiency (multicultural team and international client - high exposure to the language).

Soft Skills: 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.

Nice-to-Have Skills: Experience with cloud platforms, preferably Azure. Familiarity with specification-driven development and agentic approaches to software development. Exposure to Agile development methodologies.

If you are a seasoned back-end developer looking to take on complex challenges in a dynamic environment, we invite you to apply and become a part of our diverse team!

#LI-JM2

We are looking for a Senior .NET Engineer to join our team and contribute to the development and integration of complex software solutions focused on back-end development. This role will require working closely with a multicultural team spread across Brazil, Colombia, the UK, and the USA, with all communication conducted in English. Key Responsibilities: Design, build, and maintain back-end services using C#, ADO.NET, and SQL Server. Implement and evolve SOAP and REST APIs, ensuring 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 up to date with emerging technologies and industry trends, applying them to improve existing solutions. Contribute to CI/CD workflows and best practices to enhance development efficiency. Required Skills and Qualifications: 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. Experience with IA Platforms; Strong understanding of software design patterns and best practices. Effective communication skills and resilience in fast-paced, multicultural teams. Advanced English proficiency. Soft Skills: 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. Nice-to-Have Skills: Experience with cloud platforms, preferably Azure. Familiarity with specification-driven development and agentic approaches to software development. Exposure to Agile development methodologies. If you are a seasoned back-end developer looking to take on complex challenges in a dynamic environment, we invite you to apply and become a part of our diverse team! Our benefits: -Health and dental insurance-Meal and food allowance-Childcare assistance-Extended paternity leave-Partnership 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 platformAnd many more! More details about our benefits here: https://ciandt.com/br/pt-br/carreiras At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here.This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it. We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side. Apply To This Job

Similar Jobs

[Job - 28662] Desenvolvedor Java Pleno, Brazil

Remote, USA Full-time

Bilingual Health Educator

Remote, USA Full-time

Senior Delivery Lead

Remote, USA Full-time

Account & Business Development Manager - ASEAN

Remote, USA Full-time

Application Engineer - ASEAN Region

Remote, USA Full-time

Senior Accountant

Remote, USA Full-time

Sales Coordinator

Remote, USA Full-time

Technical Product Manager / Owner - AI - Remote

Remote, USA Full-time

Account Based Marketing Manager

Remote, USA Full-time

FlexTrades - Remote Engagement Manager

Remote, USA Full-time

Virtual Customer Support Associate – Remote Customer Experience Specialist for arenaflex E‑Commerce & Technology

Remote, USA Full-time

Remote Travel Agent

Remote, USA Full-time

Entry Level Remote Data Entry Specialist – Work From Home Opportunity with arenaflex | Competitive Pay $25–$55/Hour

Remote, USA Full-time

Experienced Remote Data Analyst for Recruiting and People Operations at Tesla - Leveraging Data to Drive Business Growth and Innovation

Remote, USA Full-time

Remote Virtual Real Estate Transaction Coordinator | 2026

Remote, USA Full-time

Program Manager, Templeton Pluralism Fellowship; Alwaleed Center for Muslim-Christian Understanding (ACMCU); Walsh School of Foreign Service (SFS)

Remote, USA Full-time

Stay-at-Home Moms: Work From Home Jobs That Pay...

Remote, USA Full-time

Hiring Virtual High School History Teacher in New York

Remote, USA Full-time

Lecturer in Design History - Online

Remote, USA Full-time

[Remote] Project Manager

Remote, USA Full-time