Summary: We are seeking an experienced Senior Node.js Engineer to design and build scalable microservices on AWS, leveraging AI tools to enhance productivity and solution quality. Highlights: 1. Design and build robust microservices in Node.js/TypeScript 2. Implement and optimize solutions using the AWS stack 3. Act as a technical reference, promoting best practices and supporting growth ***This is us*** At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000\+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development. ***This is the job*** We're seeking an experienced Senior Node.js Engineer in Argentina (only Buenos Aires/CABA or AMBA) to design and build scalable microservices on AWS. You'll be working in modern AWS environments, developing microservices and REST APIs using Node.js and TypeScript, while leveraging AI tools to enhance productivity and solution quality. ***This is you*** * 6\+ years of solid experience with Node.js \& TypeScript. * 3\+ years of hands\-on experience with Lambda, S3, DynamoDB, RDS, and infrastructure\-as\-code frameworks (Serverless/SAM). * Proficiency in SQL and NoSQL databases. * Ability to independently identify bottlenecks and propose improvements. * Strong ability to articulate technical solutions with clear business impact. * Familiarity with CI/CD pipelines, containerization technologies, and observability tools. Nice\-to\-have skills: * Experience working with AI tools and their practical application in software development. ***This is your role*** * Design and build robust microservices in Node.js/TypeScript, upholding high standards of technical excellence. * Implement and optimize solutions using the AWS stack (Lambda, API Gateway, DynamoDB, EKS), focusing on performance, availability, and scalability. * Participate in architectural design and technical decision\-making that impacts system scalability. * Act as a technical reference for the team, promoting best practices (Clean Code, Testing) and supporting developer growth. *At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.*