Senior Node.js Engineer

Avenga

. Design, develop, and maintain scalable microservices using Node.js and TypeScript .

Posted 9/22/2026full-timeCórdoba • ArgentinaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and developing scalable microservices using Node.js and TypeScript, with a strong focus on AWS cloud-native solutions and performance optimization. Proven ability to mentor engineers and collaborate across teams to deliver impactful business solutions.

Highest-signal resume keywords

Node.js DevelopmentTypeScript DevelopmentAWS Cloud SolutionsMicroservices ArchitectureAI Platform Development

ATS Keywords

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Hard Skills

Microservices ArchitectureBackend Application DevelopmentSQL DatabasesNoSQL DatabasesInfrastructure as CodeAutomated TestingPerformance OptimizationClean Code PrinciplesAWS LambdaAPI Gateway

Soft Skills

Excellent CommunicationOwnership MindsetProactive Improvement

Tools & Technologies

Serverless FrameworkAWS SAMDynamoDBS3RDSEKS

Industry Keywords

FinTechCloud-Native SolutionsAI-Based SolutionsIntelligent AutomationObservability Practices

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsDynamoDBJavaScriptMicroservicesNode.jsNoSQLSQLTypeScript

About the role

Key responsibilities & impact

Design, develop, and maintain scalable microservices using Node.js and TypeScript
Build and optimize cloud-native solutions leveraging the AWS ecosystem
Ensure high levels of system performance, scalability, availability, and reliability
Participate in architecture discussions and influence technical decisions supporting long-term platform growth
Act as a technical mentor and trusted advisor to fellow engineers
Collaborate with cross-functional teams to deliver business-critical solutions
Identify technical risks, performance bottlenecks, and opportunities for optimization
Contribute to platform capabilities, including AI-based solutions and intelligent automation
Own projects from design through deployment and ongoing maintenance

Requirements

What you’ll need

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
Experience with AWS Lambda, API Gateway, DynamoDB, S3, RDS, and EKS
Experience with Infrastructure as Code tools such as Serverless Framework and AWS SAM
Advanced knowledge of SQL and NoSQL databases
Strong understanding of Clean Code principles, automated testing, performance optimization, scalability, and reliability
Excellent communication skills and ability to explain technical concepts in terms of 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
Intermediate English proficiency
Experience building or contributing to AI platforms, AI-powered products, or AI agents is a significant advantage
Knowledge of machine learning infrastructure or integrations with AI services is a nice-to-have
Experience in the FinTech industry is a nice-to-have
Experience with highly scalable, cloud-native distributed systems is a nice-to-have
Experience mentoring engineers and leading technical initiatives is a nice-to-have
Familiarity with modern observability, monitoring, and DevOps practices is a nice-to-have

Benefits

Comp & perks

Equal opportunities in recruitment, career development, and leadership
Diverse and inclusive work environment
Opportunity to work on business-critical FinTech solutions
Opportunity to contribute to AI-based solutions and intelligent automation initiatives
Mentoring and technical leadership opportunities
Career development opportunity at Avenga