[Job-28248] Senior Backend Developer (Python), Brazil at CI&T

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 Backend Developer to design and build scalable backend services for a modern cloud-based platform. This role focuses on developing reliable APIs, distributed systems, and integration services that interact with multiple enterprise systems and external platforms. You will work on systems that require strong reliability, asynchronous processing, enterprise-grade security, and cloud-native architecture. **Your Mission Design and build backend services that support complex business workflows and integrations. Develop resilient systems capable of handling external system failures through asynchronous processing, retries, and fault-tolerant patterns. Ensure services meet enterprise-grade standards for performance, reliability, security, and observability. Collaborate with cross-functional teams including frontend developers, product managers, and platform engineers. Contribute to architectural decisions and mentor other developers to raise engineering standards. **Key Responsibilities Design and develop backend services using Python. Build and maintain REST APIs exposed through API Gateway. Develop containerized services using Docker Implement asynchronous workflows, background processing, and event-driven patterns. Develop integrations with external enterprise systems such as identity providers, messaging systems, and SaaS platforms. Work with PostgreSQL-based databases, including Supabase  Implement durable workflows and long-running processes using Temporal. Integrate AI-powered capabilities through AWS Bedrock. Implement monitoring and observability using OpenTelemetry, Fluent Bit, and Grafana. Collaborate with infrastructure teams using Terraform and GitHub Actions to support CI/CD pipelines and infrastructure automation. Ensure services follow strong security, performance, and operational standards. **Required Qualifications (Essential Technologies) Candidates must have hands-on experience with the following technologies: Python (production backend development) REST API development Docker and containerized applications API Gateway PostgreSQL Event-driven architectures and asynchronous processing Message queues or background processing systems Workflow orchestration tools such as Temporal Infrastructure as Code (Terraform) CI/CD pipelines such as GitHub Actions Observability tools such as OpenTelemetry, Grafana, or similar Additionally, candidates should demonstrate: Strong knowledge of distributed systems design Experience implementing resilience patterns such as retries, idempotency, and failure recovery Experience with authentication and authorization concepts (OAuth, OIDC, SSO, RBAC) Ability to troubleshoot and support production systems Strong communication and collaboration skills **Nice to Have Experience with Supabase or PostgreSQL platforms Experience integrating AI or LLM-based capabilities Experience building enterprise SaaS platforms Experience designing systems that support hybrid or on-prem deployments Experience mentoring engineers or acting as a technical lead Advanced English 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: [Upgrade to PRO to see link] 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.