**A place for innovative people who make things happen!** We are a company recognized for the boldness to propose differentiated services and solutions, built in a unique way and with excellence. We always pursue the "something more", moving away from the ordinary and expected, so we can surprise customers with innovative ideas. **Responsibilities and duties** We are looking for a Backend Developer with strong expertise in AWS serverless solutions, focusing on Lambda, API Gateway, S3, CloudWatch, and Secrets Manager. This position is ideal for professionals who want to work with modern architectures, high-performance APIs, and contribute technically to strategic product decisions. Responsibilities: * Design, develop, and maintain serverless applications in Python, focusing on scalability, security, and performance; * Build and maintain REST APIs using API Gateway, integrating with internal and external systems; * Use AWS Lambda, S3, CloudWatch, and Secrets Manager as core stack tools; * Implement monitoring, structured logging, and error handling; * Collaborate with architecture, DevOps, security, and product teams; * Participate in code reviews, definition of technical standards, and dissemination of best practices. Mandatory requirements: * Proficiency in AWS Lambda, API Gateway, S3, CloudWatch, and Secrets Manager; * Solid knowledge of Python and experience with at least one framework (FastAPI, Flask, or Django); * Experience with integration of relational databases (MSSQL Server, Oracle); * Experience with file handling, consumption of external APIs, and data parsing (JSON, XML). Desirable: * Knowledge of event-driven architecture with SNS, SQS, and EventBridge; * Experience with authentication/authorization mechanisms such as OAuth2, JWT, and Cognito; * Familiarity with secure development practices, CI/CD pipelines, and monitored environments. **Requirements and qualifications** Bachelor's degree completed or in progress in Computer Science, Systems Analysis and Development, Information Systems, or related fields. Intermediate English proficiency is desirable. Intermediate Excel skills are desirable. **Additional information** **Benefits offered:** Bradesco Medical and Dental Insurance Icatu Life Insurance Meal or Food Voucher Transportation Voucher Educational Incentive TotalPass Golden Farma Longevity Bonus for Tenure Performance Evaluation (Growth and Development Opportunities) Mentorship Program Payroll Deduction Loan Professional Registration Fee Coverage (CRC, OAB, or CRP) Corporate Device Birthday Off Birthday Off Gift Voucher RSM is a leader in delivering customized solutions! Our goal is to help our clients achieve real results. To do this, we offer customized solutions that meet the needs of each company. We have never been a company satisfied with comfort or with merely meeting minimum expectations; we are always seeking "something more" to surprise our customers: innovative ideas, anticipating solutions based on reality, and pursuing paths that add greater value to our delivery. RSM Brazil is a member of the *6th largest global network* of audit, tax, and consulting firms in the world. We are present in 123 countries, with over 51,000 professionals working to exceed expectations, anytime and anywhere in the world. In numbers, in Brazil we are: * 9 offices; * + 26 partners; * +1100 employees. The knowledge, experience, and diversity of our professionals' skills are fundamental to our commitment to excellence. And you can be part of it!