Senior Full Stack Software Engineer

About the role

We are seeking a Senior Full Stack Software Engineer to join our partner’s engineering team in Argentina. The role focuses on building and enhancing modern cloud‑native applications that handle large‑scale data processing and support critical business services.

Key responsibilities

• Design, develop, test, deploy and maintain full‑stack web applications using Node.js, React and cloud‑native technologies.
• Build scalable backend services and serverless solutions on AWS (Lambda, SNS, SQS, S3, IAM, CloudWatch, RDS, DynamoDB).
• Create technical designs, write clean production code and produce comprehensive documentation.
• Develop automated test suites, perform unit testing and ensure overall software quality.
• Collaborate with architects, UX designers, infrastructure specialists and other engineers to deliver end‑to‑end solutions.
• Monitor performance, troubleshoot issues and continuously improve reliability and scalability.
• Contribute to DevOps practices, CI/CD pipelines and Infrastructure as Code initiatives.
• Support Agile development processes and share knowledge within the team.

Required profile

• Proven experience building cloud‑native full‑stack applications with Node.js and modern JavaScript/TypeScript.
• Strong frontend expertise using React and contemporary UI frameworks.
• Hands‑on experience designing microservices and serverless architectures on AWS.
• Ability to produce clean, maintainable code and technical documentation.
• Experience with automated testing, CI/CD and Agile methodologies.

Required skills

• Node.js
• JavaScript / TypeScript
• React
• AWS Lambda
• AWS SNS
• AWS SQS
• AWS S3
• AWS IAM
• AWS CloudWatch
• AWS RDS
• AWS DynamoDB
• Microservices
• Serverless architecture
• CI/CD pipelines
• Infrastructure as Code
• Automated testing / unit testing