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syed_alizafar

Syed Ali Zafar

@syed_alizafar

Senior Backend Engineer APIs, Webhooks and SaaS Reliability

Pakistan
Anglais, Ourdou, Hindi
Certaines informations sont présentées en anglais.
À propos de moi
I help SaaS teams diagnose and repair APIs, payments, authentication, data workflows, background jobs, and production failures. My core stack includes TypeScript, JavaScript, Node.js, NestJS, Express, Next.js, PostgreSQL, Supabase, Stripe, AWS, and Docker. I’m comfortable working in inherited codebases, tracing issues across logs and services, and delivering focused changes with tests, useful logging, and a clear handoff. I have worked on healthcare integrations, scientific-data workflows, fintech event processing, and compliance systems. I personally scope and deliver every project. ... Plus d’infos

Compétences

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syed_alizafar
Syed Ali Zafar
hors ligne • 

Voir mes services

API & Intégrations
I will fix webhook failures in your nodejs saas
De250 $US / projetPlus de détails
Développement de chatbots d'IA
I will fix rag chatbot errors and unreliable answers in your saas
De250 $US / projetPlus de détails

Portfolio

Expérience professionnelle

Upwork

Senior Backend Developer | Node.js, NestJS, TypeScript, AWS

Upwork • Indépendant

Aug 2025 - Present • 1 yr

built and stabilize Node.js/NestJS backends for SaaS products APIs, payments, authentication, webhooks, queues and PostgreSQL workflows. My recent work From Upwork includes healthcare data pipelines and multi tenant compliance systems.