Senior Backend Engineer - IoT & AWS Serverless

Avenga; Argentina; Presencial; ARS 90.697.000 - 136.046.000; Jornada completa

Descripción de la vacante

Avenga is seeking a Senior Backend Engineer in LATAM to design, build and operate high-frequency IoT backend services using Node.js/TypeScript on AWS Serverless infrastructure. You will focus on robust APIs, time-series data processing, and production readiness.

The role requires strong API design, PostgreSQL expertise, and leadership to mentor engineers and drive ADR-based architectural decisions. Join a global team delivering critical backend platforms with security and observability at the

Formación

• Solid experience in backend development with Node.js/TypeScript and designing REST APIs and event-driven architectures.
• Proven hands-on experience in AWS Serverless architecture: Lambda, IAM, VPC, CloudWatch, and integration services (API Gateway, SQS/SNS, EventBridge, Kinesis, or Step Functions).
• Strong expertise in PostgreSQL and Amazon Aurora PostgreSQL: data modeling, indexing, query performance, transactions, and troubleshooting.
• Demonstrated experience handling high-frequency time-series data: ingestion, time-window queries, aggregations, and retention policies.
• Strong proficiency with Git and GitHub workflows: PRs, code reviews, branching strategies, and CI/CD automation.
• Deep commitment to testing best practices (unit/integration), end-to-end observability, and security (OWASP, secrets management, authn/authz).
• Professional technical English level to write code, review PRs, and read documentation seamlessly.
• Strong technical leadership skills: ownership mindset, ability to mentor engineers, drive architectural decisions (ADRs), and elevate code quality standards.

Responsabilidades

• Design and implement serverless APIs and microservices in Node.js/TypeScript on AWS Lambda integrated with API Gateway, ALB, or event triggers.
• Maintain and extend shared core packages (types, helpers, error codes) ensuring API contract integrity across frontend and mobile platforms.
• Implement resilience and reliability patterns: idempotency, exponential backoff retries, DLQ, deduplication, and Lambda concurrency control.
• Define and optimize event-driven IoT architectures for telemetry ingestion and manage time-series models in Amazon Aurora PostgreSQL and hypertables.
• Set up end-to-end observability (structured logs, metrics, distributed tracing) and define actionable alerts with CloudWatch and OpenTelemetry.
• Enforce security best practices (least-privilege IAM, Secrets Manager, encryption) and maintain automated GitHub Actions CI/CD pipelines.
• Take ownership of critical platform components, document architecture trade-offs (ADRs), mentor engineers, and drive continuous platform improvements.

Conocimientos

Node.js

TypeScript

AWS Serverless

REST APIs

Event-driven

Git/GitHub

Testing & observability

Technical English

Leadership

Herramientas

Lambda

API Gateway

SQS/SNS

EventBridge

Kinesis

Step Functions

PostgreSQL

Aurora PostgreSQL

Descripción del empleo

Avenga is seeking a Senior Backend Engineer in LATAM to design, build and operate high-frequency IoT backend services using Node.js/TypeScript on AWS Serverless infrastructure. You will focus on robust APIs, time-series data processing, and production readiness.

The role requires strong API design, PostgreSQL expertise, and leadership to mentor engineers and drive ADR-based architectural decisions. Join a global team delivering critical backend platforms with security and observability at the