Senior Full-Stack Engineer: Backend Core + Admin Dashboard

Codup; Pakistan; On-site; PKR 450,000 - 750,000; Full time

Job summary

Codup is seeking a Senior Full Stack Engineer to join a mobile product delivery engagement. You will own the middleware layer that connects a mobile commerce platform to multiple integrated services, and you will build a web‑based admin dashboard for the marketing team.

Ideal candidates have 5+ years in full‑stack development, at least 4 years of production Node.js experience, and proven work on multi‑platform integrations with complex data flows.

Qualifications

• Production‑grade Node.js REST APIs with auth, routing, error handling and rate limiting.
• Schema design and queue/retry patterns in PostgreSQL.
• Shopify Admin API integration including webhooks, catalog sync and orders.
• Elasticsearch indexing pipelines and Arabic analyzer configuration.
• Next.js admin interfaces with role‑based access and forms.
• Experience with SQS/SNS or similar for async processing.
• Durable retry queues and failed sync recovery across platforms.
• Integrating external services via REST APIs (Firebase/OneSignal).
• End‑to‑end data flows across multiple connected services.
• Code that performs under peak loads with caching strategies.
• Experience using AI coding tools with ownership of commits.

Responsibilities

• Own the middleware layer connecting mobile commerce to multiple services.
• Build and own a web‑based admin dashboard for marketing team workflows.
• Collaborate with the Tech Lead and execute architecture within defined boundaries.
• Write production‑grade code and identify blockers early.

Skills

Node.js API Development

PostgreSQL

Shopify API Integration

Elasticsearch

Next.js

Async Messaging

Retry Logic

Third-Party Service Integration

Multi-Platform Integration

Performance‑Aware Development

AI‑Assisted Development

Job description

Codup is seeking a Senior Full Stack Engineer to join a mobile product delivery engagement. You will own the middleware layer that connects a mobile commerce platform to multiple integrated services, and you will build a web‑based admin dashboard for the marketing team.

Ideal candidates have 5+ years in full‑stack development, at least 4 years of production Node.js experience, and proven work on multi‑platform integrations with complex data flows.