Backend developer at Cogniticks

Zahra
Waheed

Backend Developer

I build and optimize production-grade SaaS backends with Python, Django, FastAPI and microservices.

Work with Zahra Download CV

2.5+years of experience

5+microservices optimized

2payment gateways integrated

2services built from scratch

About

Scalable backends for SaaS.

I'm a Backend Developer with 2.5+ years of professional experience building and optimizing production-grade SaaS platforms using Python, Django, FastAPI and microservices architecture.

My work spans multi-tenant system design, payment gateway integrations and scalable REST APIs, secured with JWT and OAuth2 and backed by asynchronous processing with Celery and RabbitMQ.

I'm also pursuing a BS in Artificial Intelligence, with hands-on exposure to machine learning, deep learning, NLP and computer vision.

Based inBahawalpur, Pakistan

FocusBackend & microservices

Experience2.5+ years

StudyingBS Artificial Intelligence, expected 2027

Skills

What I'm good at.

Toolbox

Python
Django
Django REST Framework
FastAPI
Pydantic
PostgreSQL
MySQL
Redis
SQLAlchemy
Celery
RabbitMQ
JWT & OAuth2
AWS S3
Stripe
SSLCommerz
SendGrid
Twilio
Git & GitLab
Postman & Swagger
Pytest
Scikit-learn
TensorFlow
PyTorch

Selected work

Things I've worked on.

All Cogniticks work

NexSaaS — OMS & DMS Platform2023 — now

Backend developerA multi-tenant SaaS platform combining an Order Management System and a Delivery Management System, with strict per-tenant data isolation, dual payment gateways (Stripe and SSLCommerz) and a centralized authentication service.

MicroservicesMulti-tenant

Experience

2023 — now

Backend DeveloperEnigmatixBuilt the Catalog and Configuration services of the Order Management System from scratch with Django REST Framework, and optimized 5+ microservices (catalog, configuration, orders, auth, payment) for performance, reliability and scalability. Integrated SSLCommerz alongside Stripe, secured APIs with JWT and OAuth2, and ran background jobs, transactional email and SMS through Celery, RabbitMQ, SendGrid and Twilio.

Education

BS Artificial IntelligenceThe Islamia University of Bahawalpur · expected 2027

Certifications

Technical Course TrackCertificate