Senior AWS Developer

Role Overview

• Design, develop and maintain diagnostic and distributed data processing systems using modern .NET (Core/.NET 8) and AWS cloud services
• Build and evolve event-driven architectures using services such as SQS, SNS, Kinesis and Lambda
• Develop and maintain REST APIs and integration layers, including secure communication via API Gateway and WAF
• Work with asynchronous pipelines and message-based integrations, ensuring reliability and scalability
• Lead or contribute to solution architecture decisions, including cloud-native and serverless designs
• Maintain and modernize legacy systems (.NET Framework, Windows Services, containerized workloads)
• Implement logging, monitoring and observability practices (e.g., CloudWatch, structured logging with Serilog)
• Debug complex distributed systems, including production incident analysis and root cause investigations
• Collaborate with cross-functional teams on requirements analysis, system design and integration contracts (XML/JSON)
• Contribute to CI/CD pipelines and infrastructure as code (CloudFormation/SAM, GitLab CI)
• Ensure security best practices, including IAM roles, secret management and API protection
• Develop and run automated tests (unit, integration) to improve system reliability and quality
• Support cloud governance and operational excellence, including cost awareness and scalability
• Continuously evaluate and improve system performance, architecture and development practices

Requirements

• Experienced developer with a proven track record
• Effective communication and interpersonal skills
• Knowledge of agile development and continuous deployment (CI/CD)
• Formal education in computing
• Minimum of 3 years of experience as a developer
• Knowledge of cloud and IoT connectivity is a strong advantage
• Bachelor's or Master's degree in Computer Engineering, Systems Development, Computer Science or related fields
• Strong experience with C# and .NET (preferably .NET Core / .NET 8+)
• Solid experience with cloud platforms, preferably AWS (Lambda, SQS, SNS, Kinesis, API Gateway, S3, IAM)
• Knowledge of microservices, serverless patterns and asynchronous processing
• Experience with RESTful APIs, integration patterns and message contracts (XML/JSON)
• Familiarity with infrastructure as code (CloudFormation, SAM or similar)
• Experience working with CI/CD pipelines – GitLab
• Experience with distributed, event-driven system architectures
• Knowledge of logging, monitoring and observability practices (Grafana/CloudWatch)
• Strong problem-solving and debugging skills in complex, distributed environments
• Experience with DynamoDB or NoSQL databases
• Experience with automated testing frameworks (e.g., NUnit, Moq)
• Understanding of cloud security best practices (IAM, secret management, API security)
• Collaborative, team-oriented mindset
• Strong experience designing and implementing complex software solutions in an international context
• Excellent spoken and written English skills are required, as the role has a global scope and involves regular interactions and reporting with teams and stakeholders in other countries.

Tech Stack

• AWS
• DynamoDB
• Grafana
• IoT
• NoSQL
• .NET

Benefits

• Hybrid work model (3 days on-site per week)
• Bradesco health and dental plan
• Life insurance
• Meal and/or food allowance
• On-site cafeteria/restaurant
• Wellhub (Gympass)
• 50% subsidy for prescription medications
• Scania Club (gym facilities and sports activities for employees and dependents)
• Parking
• Company transportation (predefined routes available for selected locations)
• Discount on Volkswagen vehicle purchases
• Discounts on auto and home insurance from Tokio Marine
• On-site Itaú bank branch, plus document processing and postal services
• Childcare assistance
• Christmas gift for employees' children up to 12 years old
• Long service recognition program
• Extended maternity leave
• Flexible working hours
• Time bank system (compensatory time-off)
• Quality of Life programs focused on health promotion and preventive care