Ubaid Ur Rehman

Full-Stack Software Engineer specializing in Python, Django, and React/TypeScript.

Based in: Lahore, PakistanCurrently: Software Engineer, FlickenExperience: 3 years

Hire me

A full-stack engineer with over 3 years of experience building and scaling SaaS, fintech, and AI-integrated products across 10+ client platforms. He specializes in architecting secure multi-tenant APIs and modern frontend interfaces while leveraging AWS and automation to reduce operational overhead.

Experience

Software Engineer

FlickenLahore, PakistanworkSep 2023 – Present

Summary

Architected full-stack multi-tenant SaaS platforms using Django, FastAPI, Flask, and React/TypeScript, powering auth, billing, and integrations for 10+ client organizations in production. Shipped 20+ REST API endpoints alongside corresponding frontend features, supporting concurrent multi-tenant traffic in production. Implemented JWT / OAuth 2.0 authentication with RBAC across 3+ platforms; integrated Stripe and PayPal for subscription billing and webhook-driven synchronization. Built Celery/Redis async task-processing pipelines that reduced manual operational effort by ~60%. Deployed and maintained services on AWS (EC2, S3, RDS); wrote Pytest-based tests for critical API and service-layer code.

What I did

  • Worked on the backend for Jobster, the company's healthcare recruitment SaaS product.

Results

  • Optimized PostgreSQL and MySQL queries to improve response times and system reliability.
  • Reduced manual operational effort by ~60% through Celery/Redis async task-processing pipelines.
  • Successfully powered auth, billing, and integrations for 10+ client organizations in production.
DjangoFastAPIFlaskReactTypeScriptJWTOAuth 2.0RBACStripePayPalWebhooksCeleryRedisAWSEC2S3RDSPytestPostgreSQLMySQL

Software Engineer, Freelance

AglivoRemotefreelanceApr 2024 – Sep 2024

Summary

Led full-stack development of a NestJS-based workflow-automation system, designing 15+ REST API endpoints for order management, payments, and internal reporting. Built a reusable service-layer architecture that cut new-feature delivery time by ~30% across subsequent releases. Collaborated fully remote in an Agile/Scrum setup with a distributed, cross-timezone team of 5+ engineers (US/AU/PK) through full planning-to-deployment cycles. Additional stack experience: Ruby on Rails and Odoo (ERP) across various client engagements.

Results

  • Cut new-feature delivery time by ~30% across subsequent releases by building a reusable service-layer architecture.
NestJSREST APIAgileScrumRuby on RailsOdooERP

Skills

Technical

ReactReact
OAuth 2.0
JWT
REST API Design
DjangoDjango
PythonPython
AWS (EC2, S3, RDS)
MySQLMySQL
JavaScriptJavaScript
TypeScriptTypeScript
SQLSQL
Responsive UI Development
FastAPIFastAPI
PostgreSQLPostgreSQL
RBAC
Webhooks
Stripe
PayPal
Celery
Pytest
FirebaseFirebase
FlaskFlask
ETL Pipelines
OpenAI API
LLM Integration
GitHub ActionsGitHub Actions
DockerDocker
RedisRedis
NestJS
TerraformTerraform
KubernetesKubernetes
Next.jsNext.js
GitHubGitHub
Scrapy
Playwright

Projects

Course Builder - AI-Powered E-Learning Platform

Full-Stack Developerprofessional
Built AI course-generation workflows using the OpenAI API, cutting manual authoring time by an estimated ~50% via dynamically generated modules, quizzes, and lessons. Built APIs for enrollment, progress tracking, and automated quiz evaluation, plus instructor/admin management tooling. Implemented secure Stripe-based payment and subscription systems to monetize course access.
OpenAI APIStripePythonREST API

Planify - Australian Energy-Retail Middleware

Backend Engineerprofessional
Engineered AEMO MSATS API integrations for NMI discovery, site lookup, and energy-plan eligibility across 5+ retailers and multiple channels. Built XML-to-JSON transformation pipelines and rule-based sellability systems validating tariffs across dozens of network/meter-type combinations. Secured multi-tenant infrastructure with OAuth 2.0 client-credentials flow + JWT, meeting Australian energy-market compliance requirements.
AEMO MSATS APIXMLJSONOAuth 2.0JWT

Jobster - Healthcare Recruitment SaaS Platform

Full-Stack Developerprofessional
Built backend architecture and 10+ REST API endpoints for a LinkedIn-style recruitment platform with multi-employer, subscription-based access control. Built the employer-facing dashboard in React/TypeScript integrated with the Django backend for real-time application tracking. Integrated Stripe billing, JWT authentication, RBAC, and automated email notifications across subscription and hiring workflows.
DjangoReactTypeScriptStripeJWTRBAC

Web Scraping and AI Integration Platform

personal
Built a platform involving web scrapers, AI integrations, and database services using Docker to isolate components and maintain environment consistency.
DockerScrapyPlaywright

Education

Bachelor of Science

Lahore Garrison UniversityComputer ScienceSep 2019 – Sep 2023
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Ubaid's twin is AI, it can make mistakes.

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