[Job - 31363] Sr. Developer (.Net / IA), Brazil

Posted 3 Days Ago
Be an Early Applicant
Hiring Remotely in Brazil
Remote
Senior level
Information Technology • Consulting
The Role
Develop backend and frontend applications using C#, .NET, React, and RESTful APIs. Review and validate AI-generated code, apply software design principles and patterns, build automated tests, work with relational databases, Docker, observability tools, distributed systems, and messaging platforms. Preferred experience includes AI-assisted development, autonomous agents, AI development pipelines, prompt engineering, and evaluating AI model outputs.
Summary Generated by Built In

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.


Na CI&T, estamos em busca de um(a)Sr. Developer  (.Net) altamente qualificado(a) e motivado(a) para se juntar à nossa equipe no Brasil. Você contribuirá para um projeto inovador em um ambiente colaborativo, inovador, transformador e multicultural.

Requisitos:
•Experiência sólida como desenvolvedor sênior, com forte capacidade de leitura, validação e revisão crítica de código gerado automaticamente. 
• Experiência em desenvolvimento backend com C# e .NET (preferencialmente .NET 8+), incluindo construção de APIs RESTful. 
• Experiência no desenvolvimento de front-end com React e integração com APIs. 
• Aplicar princípios SOLID e KISS para manter o código modular, reutilizável e simples. 
• Domínio de Design Patterns (Factory, Strategy, Builder, entre outros). 
• Experiência com testes automatizados (unitários e integração). 
• Experiência com banco de dados relacionais (ex: PostgreSQL ou SQL Server). 
• Conhecimento em Docker e docker-compose. 
• Conhecimento em observabilidade (logs, métricas e tracing) com ferramentas como Datadog, Grafana ou ELK. 
• Experiência com sistemas distribuídos e mensageria (RabbitMQ, Kafka, Service Bus). 
• Inglês: Intermediário 

Diferenciais: 
• Experiência prática no uso de ferramentas de IA para desenvolvimento de software (ex: OpenAI APIs, Anthropic, GitHub Copilot, etc.) 
• Experiência em construção de agentes autônomos ou semi-autônomos para desenvolvimento de software. 
• Experiência com pipelines de desenvolvimento assistido por IA (ex: geração de código, testes, refatoração automática). 
• Conhecimento em engenharia de prompts e avaliação de qualidade de outputs de modelos de IA. 

#LI-AM2

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 platform
And 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.

Skills Required

  • Solid experience as a senior developer, including reviewing, validating, and critically assessing automatically generated code
  • Backend development experience with C# and .NET, preferably .NET 8 or higher
  • Experience building RESTful APIs
  • Frontend development experience with React and API integration
  • Knowledge of SOLID and KISS principles
  • Strong knowledge of design patterns, including Factory, Strategy, and Builder
  • Experience with automated unit and integration testing
  • Experience with relational databases such as PostgreSQL or SQL Server
  • Knowledge of Docker and docker-compose
  • Knowledge of observability, including logs, metrics, and tracing, using tools such as Datadog, Grafana, or ELK
  • Experience with distributed systems and messaging technologies such as RabbitMQ, Kafka, or Service Bus
  • Intermediate English proficiency
  • Practical experience using AI tools for software development, such as OpenAI APIs, Anthropic, or GitHub Copilot
  • Experience building autonomous or semi-autonomous agents for software development
  • Experience with AI-assisted development pipelines for code generation, testing, or automated refactoring
  • Knowledge of prompt engineering and evaluating AI model output quality
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The Company
HQ: Campinas
6,474 Employees
Year Founded: 1995

What We Do

CI&T is your end-to-end digital transformation partner. As a digital native, we bring a 27-year track record of accelerating business impact through complete and scalable digital solutions. With a global presence of 6,000+ professionals in strategy, research, data science, design and engineering, we unlock top-line growth, improve customer experience and drive operational efficiency.

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