We are seeking a Senior JavaScript Full-Stack Developer to deliver feature and maintenance work across the explorer platform and live events product within the Exploration Pod.
In this role, you will own API security hardening, dependency vulnerability remediation, and feature delivery across two products that share a common Next.js + NestJS + CMS architecture.
The adecuado candidate is a confident TypeScript engineer who can context-switch efficiently between products and takes security and reliability as seriously as feature delivery.
Responsibilities
- Deliver feature work and bug fixes across the explorer platform and live events product
- Maintain and extend NestJS API services, including data access layers and external service integrations
- Contribute to CMS schema work and content model maintenance shared across both products
- Implement rate limiting on the live events API to address identified DDoS risk
- Harden webhook endpoints with HMAC authentication across both products
- Triage and remediate the 1000+ dependency vulnerabilities identified in the live events product




- Apply dead-letter queue and retry patterns to Lambda workers and async processors
- Write and maintain unit, integration, and E2E tests to meet coverage gate targets
- Participate in code reviews and contribute to engineering standards within the pod
- Collaborate with the Integration Engineer on fan-out write patterns and Kafka consumer reliability
- Work with the Business Analyst to refine stories before sprint planning

Requirements
- 3+ years of experience as a JavaScript Full-Stack Developer
- Proficiency in TypeScript, Next.js (App Router + Pages Router), and NestJS
- Expertise in Sanity Studio v5, Algolia, and Cloudinary
- Background in AWS ECS, Lambda, and SQS
- Knowledge of Confluent Kafka, PostgreSQL, and Terraform
- Skills in implementing API security measures such as rate limiting and HMAC authentication for webhook endpoints
- Competency in dependency vulnerability triage and r

📌 Senior JavaScript Full-Stack Developer (Argentina)
🏢 EPAM Systems
📍 Argentina