Back End Developer

Backend Developer (NestJS / AWS) — Contract (1 Month)

Contract Details

• Duration: 1 Month
• Commitment: ~20 hours/week
• Compensation:
• Base: PKR 100,000
• Performance Bonus: PKR 20,000 (on successful and timely delivery)
• Work Type: Remote
• Engagement: Contract-based

Role Overview

We are hiring a production-ready backend developer to build and maintain backend services involving authentication, file processing pipelines, AI service integration, and report generation APIs.

This is a delivery-focused contract.

Not a learning role. Not experimental. You are expected to ship.

Core Responsibilities

• Design and build secure backend APIs using NestJS
• Implement authentication and access control systems
• Handle file uploads, validation, storage, and processing
• Integrate external AI or inference services
• Generate and manage reports (PDF / JSON)
• Deploy and maintain services in a production AWS environment

Required Technical Skills

Backend & API Development

• Strong NestJS (Node.js) experience in production
• REST API design with proper validation & error handling
• JWT-based authentication
• Role-Based Access Control (RBAC)
• Secure session and token management

File Handling & Processing

• Backend handling of file uploads with size/type constraints
• Processing PDF and image files (JPG/JPEG)
• Server-side validation for corrupted/unreadable files
• Triggering async or background processing workflows

AI & External Service Integration

• Experience integrating AI/ML or external inference APIs
• Validating and persisting structured AI outputs
• Handling retries, failures, and inconsistent responses

Database & Storage

• Experience with PostgreSQL and/or MongoDB
• Schema design for structured results, metadata, and logs
• AWS S3 for file storage
• Secure access patterns for stored assets

AWS, Deployment & Production

• Deploying backend services on AWS (EC2, S3, IAM)
• Environment configuration and secrets management
• Dockerized deployments
• Logging, monitoring, and error tracking (Sentry or similar)
• Performance optimization and basic security hardening

Reports, Admin APIs & Access Control

• Generating PDF and JSON outputs from backend services
• Secure download links with auth & authorization checks
• APIs to view, filter, and manage generated outputs
• Admin-level access controls and audit logging

Engineering Practices

• Strong Git discipline (branches, clean commits, PRs)
• Ability to work independently with minimal supervision
• Clear communication of blockers and progress

Nice to Have

• OCR or document-processing pipelines
• Background job queues (BullMQ, Redis, SQS)
• Experience working under short, high-delivery timelines

How to Apply

• Fill out this Form : https://docs.google.com/forms/d/e/1FAIpQLSfCc3z-UDkA83iPAhxMx3_9ipwG241LaPN8ePCKwWAJPxo0hA/viewform?usp=header
• Send your Resume at [email protected], after filling out this form.