**Position Objective:** Develop and evolve complex and distributed systems; Design technical solutions applying appropriate design patterns for each context. **RESPONSIBILITIES:** * Develop and maintain REST and GraphQL APIs * Participate in architectural decisions, defining standards, guidelines, and best practices * Work with SQL and NoSQL databases, applying data modeling * Work in containerized and orchestrated environments using Kubernetes * Integrate systems using messaging and asynchronous communication * Conduct code reviews focused on quality, readability, and maintainability * Identify structural issues, propose refactorings and technical improvements * Collaborate with Product, Architecture, and DevOps teams * Act as a technical reference, supporting the team’s development **TECHNICAL REQUIREMENTS:** * Solid knowledge of C# / .NET * Experience with REST APIs * Practical knowledge of GraphQL * Daily application of design patterns, e.g., Factory, Strategy, Repository, Builder * Knowledge of well-structured architectures: Clean Architecture, SOLID * Experience with SQL databases: PostgreSQL, SQL Server, MySQL * Knowledge of NoSQL databases: MongoDB, Redis, DynamoDB * Experience with Git and participation in CI/CD pipelines * Hands-on experience with production environments **BEHAVIORAL REQUIREMENTS:** * Proactivity and willingness to grow technically * Ability to receive feedback and learn from the team * Strong communication and collaboration skills * Organization and accountability for deliverables * Commitment to code quality and best practices **WORK SCHEDULE:** * Monday to Friday, from 8:30 AM to 5:30 PM, with a one-hour lunch break. * Hybrid model (2 days per week remote). * Location: Vila Industrial, Campinas/SP. **SALARY:** R$11.000,00 (Contractor). **BENEFITS:** * Health Plan Reimbursement according to Hapvida’s fee schedule * Life Insurance and Funeral Assistance * Transportation Reimbursement based on public transport usage and calculated according to your location * Wellhub * Birthday Day Off * Psychological Support (Company-subsidized) * Quarterly Recognition Program (with prizes) * Career Development Plan Employment Type: Full-time CLT Compensation: R$11.000,00 per month Screening Questions: * Is the compensation (R$11.000,00 – Contractor) aligned with your expectations? * Have you developed REST APIs in C# / .NET used in production environments? * Have you implemented or maintained GraphQL APIs in real-world projects? * Have you applied design patterns (e.g., Factory, Strategy, Repository, Builder) in systems actively used by customers or end users? * Have you worked on systems structured using Clean Architecture and SOLID principles? * Have you worked in environments using Docker, Kubernetes, and CI/CD pipelines with production deployments? * Have you been responsible for reviewing other developers’ code (code review) focusing on quality, standards, and maintainability? Work Location: On-site