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 UI design, managed services, product development, and software development.
This is the job
In Buenos Aires or Córdoba, Argentina, we are looking for a Senior Node.js Engineer to join our growing FinTech team and help scale and evolve our client's high-availability backend platforms.
As a senior member of the engineering team, you will play a key role in designing robust microservices, shaping architectural decisions, and driving technical excellence across our platform. Experience or interest in AI platforms, AI-powered services, and AI agents will be considered a significant advantage as part of our strategic technology roadmap.
This is you
- 5+ years of hands-on experience developing backend applications with Node.js and TypeScript.
- Strong expertise in designing and building microservices architectures.




- At least 3 years of practical experience working with AWS, including: AWS Lambda, API Gateway, DynamoDB, S3, RDS, EKS
- Experience with Infrastructure as Code (IaC)tools such as: Serverless Framework, AWS SAM
- Advanced knowledge of both SQL and NoSQL databases.
- Strong understanding of software engineering best practices, including Clean Code principles, Automated testing, Performance optimization, scalability, and reliability
- Excellent communication skills with the ability to explain technical concepts and connect them to business outcomes.
- Strong ownership mindset and end-to-end accountability throughout the software development lifecycle.
- Ability to work independently, identify bottlenecks, and proactively drive improvements.
- Fluent in Spanish and intermediate English proficiency.

Nice-to-have skills:
- Experience building or contributing to AI platforms, AI-powered products, or AI agents.
- Knowledge of machine learning

📌 Senior Node.js Engineer (Córdoba)
🏢 avenga
📍 Córdoba