Backend expert

Danish Belal

Backend expert

Available to hire

Backend expert

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate

Language

English
Fluent

Work Experience

Senior Full Stack Developer at Prael la Private Limited
August 1, 2025 - Present
Owned backend architecture for Shopify Plus merchants across 10+ stores in the US and Canada. Led Shopify migrations from multiple platforms, transforming 15–20M+ records using Python automation. Designed and built 30+ custom Shopify apps using Admin APIs, Storefront APIs, and Webhooks. Developed Shopify Extensions for customer-specific pricing logic based on postal code zones. Built a custom shipping API handling 15,000–20,000 orders with real-time charge updates. Created Shopify Flow to automate Recharge subscriptions and prepaid orders, processing approx. 5,000 orders/month. Architected a B2B custom Shopify app with role-based access serving 80,000+ orders/month. Implemented session-based authentication for Shopify Admin and customers supporting high-concurrency requests.
Software Engineer – Backend at Callphone Limited
May 1, 2023 - August 15, 2025
Architected and maintained backend services for 100+ merchants handling high-volume transactions. Designed automated and manual settlement workflows processing $50K+ USD per week. Built and scaled Redis queues handling 40,000+ background tasks, improving performance by 40%. Developed event-driven real-time notifications using background workers and Firebase. Implemented secure authentication, RBAC, and strong API validation layers. Built a microservice for file upload and retrieval on AWS S3, handling 5,000+ requests per day. Owned production support for critical KYC, settlement, and payment issues.
Software Engineer at Catnyx Consultants
March 1, 2022 - April 1, 2023
Developed scalable RESTful APIs for investment analytics and real-time dashboards. Optimized PostgreSQL and SQL Server queries, improving reporting performance by 30%. Streamlined client onboarding workflows, reducing processing time and operational overhead. Built real-time notification systems to improve client engagement and data visibility.

Education

Bachelor of Technology in Information Technology at Hemvati Nandan Bahuguna Garhwal University (Central University)
January 1, 2020 - January 1, 2023
Diploma in Computer Science and Engineering at Jamia Millia Islamia
January 1, 2017 - January 1, 2020

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services