AWS Back-end Developer | C# · .NET · Python - Squilla

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an AWS Back-end Developer | C# · .NET · Python - Squilla based in Brazil.

Join a high-performing engineering team building modern, AWS-native back-end solutions at global scale.

You’ll develop scalable and resilient applications that support critical business needs across international markets.

The role combines hands-on software development with cloud architecture, automation, and continuous technical improvement.

You’ll work with C#, .NET, Python, and AWS while applying strong engineering and testing practices.

Your contributions will help improve system reliability, performance, maintainability, and overall product quality.

You’ll collaborate with experienced engineers in an agile environment with meaningful technical ownership.

This is an excellent opportunity for a back-end developer who enjoys solving complex problems and working with modern cloud technologies.

Accountabilities

• Build, enhance, and maintain scalable, reliable, and maintainable back-end applications aligned with business and customer requirements.
• Design, implement, and evolve cloud-native solutions using AWS services and architectures.
• Develop back-end services primarily with C#/.NET and Python, applying clean and modular engineering practices.
• Contribute to architectural decisions and technical initiatives that improve system scalability, resilience, performance, and maintainability.
• Apply automated testing, code reviews, documentation, and other software engineering best practices to ensure high-quality solutions.
• Design and develop RESTful APIs and resilient microservices where appropriate.
• Work with relational and non-relational databases to support efficient and reliable application architectures.
• Participate in incident management, troubleshooting, root-cause analysis, and performance monitoring.
• Collaborate with engineering teams and other stakeholders in an agile environment, particularly within Scrum practices.
• Identify opportunities for automation, process improvement, and technical optimization.
• Contribute to continuous improvement initiatives and help establish effective development and operational practices.
• Work across international projects and collaborate with teams operating across North and South America and Europe.

Requirements

• Strong professional experience in back-end software development using C#/.NET and Python.
• Hands-on experience designing, deploying, and operating solutions in AWS environments, including cloud architecture and managed services.
• Strong understanding of back-end application architecture, scalability, resilience, and maintainability.
• Experience with software engineering principles such as SOLID, Clean Code, and Design Patterns.
• Familiarity with RESTful API development and resilient microservices architectures.
• Experience working with relational databases such as PostgreSQL or SQL Server and/or NoSQL technologies such as DynamoDB or MongoDB.
• Experience with automated testing and engineering practices that promote code quality and reliability.
• Familiarity with Agile methodologies, particularly Scrum.
• Strong troubleshooting and problem-solving abilities, with experience participating in incident resolution and performance analysis.
• Ability to contribute to technical architecture discussions and drive continuous improvement.
• Strong communication and collaboration skills, with the ability to work effectively with international teams.
• Advanced English or Spanish proficiency.
• Availability to work in person two days per week at the designated office.
• A background in banking or fintech is considered an advantage.

Benefits

• Profit Sharing and Results Participation (PLR)
• Meal and food allowance
• Medical insurance
• Dental insurance
• Childcare or nanny assistance
• Transportation allowance
• WellHub partnership
• TotalPass
• Employee Assistance Program (EAP)
• Optional private pension plan
• Optional life insurance
• Pharmacy discounts
• Nutrition support program
• Pregnancy support program
• Extended maternity and paternity leave through the Empresa Cidadã program
• Inclusive and collaborative work environment
• Opportunities to work on international projects and modern cloud technologies