Senior Fullstack Node.js + React (US time zone)

Senior Fullstack Node.js + React.jsCompensation: $6,000 – $8,000 USD/monthOverlap: Must overlap with PST timezone team until 5:00 PM PST (2.00 Polish Time)About the RoleHelp keep a multi-service Ads platform healthy, scalable, and high-performing across AWS and GCP.You’ll act as the senior engineer on the front lines of production reliability, incident response, and platform stability — with the opportunity to expand into deeper platform ownership, infrastructure design, and operational excellence.This role requires strong hands-on debugging skills, cloud infrastructure knowledge, and the ability to confidently own production incidents in a US (PST) timezone environment.What You’ll Do (Core Responsibilities)Triage and resolve production issues across the full stack (Next.js frontend, Node.js/NestJS backend, PostgreSQL, networking).Debug end-to-end systems using logs, traces, and metrics.Partner with product and engineering teams to identify root causes and prevent regressions.Improve observability (dashboards, alerts, tracing) and incident response processes.Create and maintain clear runbooks and operational documentation.Ensure platform reliability, availability, and performance across environments.Own production incidents during PST overlap hours.Growth Areas / Expansion OpportunitiesWe’re looking for someone who can contribute immediately and grow into deeper platform responsibilities:Kubernetes & Argo CD: deployments, rollbacks, scaling, ingress/networking, secrets, config management.CI/CD & Infrastructure as Code: collaborate on pipelines and infrastructure using Terraform (AWS provisioned via Jenkins).Data operations fundamentals: support database jobs, backups, migrations, and performance troubleshooting.Platform automation and reliability improvements.Requirements7+ years of experience in Software Development, Application Support, SRE, DevOps, or Platform Engineering roles within microservices environments.Strong debugging skills across modern web applications and APIs (Node.js/NestJS, Next.js).Practical cloud knowledge (IAM, networking, containers, compute, storage).Experience with observability tools (logs, metrics, traces) and incident management.Experience supporting production systems at scale.Clear and calm communication under pressure.Comfortable working with and overlapping US (PST) timezone until 2:00 AM CET.Nice to HaveAWS (EKS/ECR, S3, CloudWatch) and/or GCP (GKE, GCS, Pub/Sub).GitOps workflows, blue/green or canary deployments, feature flags.Kafka/Redpanda experience.Security scanning, secrets management, policy-as-code.Experience in high-traffic Ads or real-time platforms.