Senior E‑commerce Engineer - Remote (Next.js/AWS)

Lean Solutions Group; Colombia; Remote; COP 133,920,000 - 234,360,000; Full time

Job summary

Global Technology Services is seeking a Senior Lead E-commerce Engineer to design, develop, and optimize scalable web applications using TypeScript, React, and Next.js. You will architect serverless backends on AWS, implement event-driven patterns, and ensure high-performance frontend delivery with accessibility standards.

You will lead API design with REST/GraphQL, manage databases like PostgreSQL, and oversee observability, security practices, and CI/CD pipelines.

Qualifications

• Advanced proficiency in TypeScript, React, Next.js, and Node.js.
• Strong experience with responsive, mobile-first design using Tailwind CSS or Bootstrap.
• Deep understanding of AWS serverless ecosystems, event queues, and IAM fundamentals (least-privilege access).
• Experience with relational databases (PostgreSQL or similar) and data modeling.
• Proven background in automated unit, integration, and end-to-end testing (Jest, RTL, Playwright, Cypress).
• Experience with CI/CD pipelines (GitHub Actions, GitLab CI) including automated testing gates and safe rollback.
• Proficiency with Infrastructure as Code (Terraform, AWS CDK, or SAM) and Docker/containerization basics.
• Production on-call experience and incident response capabilities, including writing postmortems.

Responsibilities

• Develop and optimize scalable web applications using TypeScript, React, Next.js (App Router, SSR/SSG/ISR), and Redux.
• Design, build, and version REST and/or GraphQL APIs using Node.js with robust error handling.
• Architect and manage serverless backend infrastructure on AWS utilizing Lambda, Batch, API Gateway, Step Functions, S3, CloudFront, and DynamoDB.
• Implement and manage event-driven architectures and webhooks using SQS, SNS, SES, and EventBridge, ensuring message ordering and idempotency.
• Optimize frontend delivery for Core Web Vitals (LCP, CLS, INP), image optimization, code splitting, and WCAG 2.1 AA accessibility.
• Manage Elasticsearch clusters (index design, relevance tuning, reindexing) and Redis caching strategies (cache invalidation, TTLs, rate limiting).
• Follow trunk-based development with short-lived branches, small frequent merges, and feature flags to ship code safely.
• Maintain observability and monitoring using structured logging, metrics, and distributed tracing (OpenTelemetry) via CloudWatch, Datadog, or Grafana.
• Conduct thoughtful code reviews and maintain secure coding practices (OWASP Top 10) and secrets management.

Skills

TypeScript

React

Next.js

Node.js

AWS serverless

PostgreSQL

Testing (Jest/RTL/Playwright/Cypress)

CI/CD (GitHub Actions, GitLab CI)

Terraform / AWS CDK / SAM

Docker

Tools

Tailwind CSS

Bootstrap

GraphQL

S3

API Gateway

Lambda

EventBridge

OpenTelemetry

Datadog

Grafana

CloudWatch

Redis

Elasticsearch

Job description

Global Technology Services is seeking a Senior Lead E-commerce Engineer to design, develop, and optimize scalable web applications using TypeScript, React, and Next.js. You will architect serverless backends on AWS, implement event-driven patterns, and ensure high-performance frontend delivery with accessibility standards.

You will lead API design with REST/GraphQL, manage databases like PostgreSQL, and oversee observability, security practices, and CI/CD pipelines.