Muhammad Zarq Khan
const role = "Senior Full-Stack Software Engineer"|
9+ years shipping scalable, secure, production-grade web platforms across SaaS, fintech, AI/ML and cloud-native systems. I design multi-tenant architectures, build resilient backends, and deploy them on AWS & Kubernetes.
A senior engineer who ships.
I build fullstack systems end-to-end — from database schemas and REST/GraphQL APIs to React/Vue dashboards and cloud infrastructure. My sweet spot is high-traffic SaaS where correctness, performance and operability all matter.
Over the last decade I've led distributed teams, integrated AI/ML into production workflows, migrated monoliths into event-driven microservices, and owned everything from CI/CD pipelines to on-call rotations.
I'm biased toward boring, reliable technology wrapped around interesting business logic.
The toolbox.
Languages & Frameworks
APIs & Architecture
Cloud & DevOps
Data & Storage
AI / ML
Reliability & Testing
Career timeline.
Senior Full-Stack Software Engineer
- Designed and delivered scalable full-stack applications with Laravel, Python, Node.js and modern frontends (React, Vue, Angular).
- Built REST APIs, AI-powered workflows and backend services powering auth, automation and multi-tenant SaaS.
- Integrated OpenAI APIs and ML workflows into production systems to automate business processes.
- Led cloud-native deployments on AWS (EC2, ECS, EKS, Lambda, RDS, S3), containerized with Docker & Kubernetes.
- Automated CI/CD and IaC with Terraform, Pulumi and Azure DevOps for consistent, high-frequency releases.
- Optimized PostgreSQL/MySQL under high traffic and hardened observability with CloudWatch.
Team Lead / Full-Stack Engineer
- Led a distributed engineering team shipping multi-tenant SaaS platforms across Vue, React, Angular, Laravel and Node.
- Developed API-driven microservices supporting financial workflows and enterprise SaaS products.
- Built AI-assisted features using Python services integrated via REST APIs.
- Introduced event-driven architectures and containerized deployments with Docker & Kubernetes.
- Managed AWS infra (ECS, EC2, RDS, S3) with CI/CD automation to improve reliability.
Software Engineer
- Built full-stack web apps for SMB clients across retail and logistics — frontend, backend, cloud and data layers.
- Developed React/Angular dashboards for analytics and reporting with TypeScript and REST APIs.
- Implemented backend services with Laravel, Node.js, Python and .NET Core with clean service boundaries.
- Designed and tuned relational schemas in MySQL/PostgreSQL for better query efficiency and integrity.
- Troubleshot live production issues, fixed bottlenecks and improved reliability across distributed services.
Selected work.
Smart Bill
Full-stack billing and invoicing platform with secure transaction handling and multi-tenant business workflows.
BizFlow HQ
Multi-tenant SaaS for managing users, roles, billing and workflows. Secure REST APIs, RBAC, optimized Postgres and a responsive Vue dashboard.
Superside
Enterprise creative-workflow platform built with React and TypeScript, backed by PostgreSQL and CI/CD pipelines at production scale.
Kudo AI
Live AI-powered speech translation and professional interpreter services across 200+ languages for global virtual meetings.
Tenna
SaaS asset-tracking platform supporting large-scale operational data and enterprise reporting.
Key achievements.
40% faster queries
Tuned MySQL & Postgres on Laravel apps, cutting response times and speeding up Vue dashboards.
10,000+ API users
Grew the API user base to 10k in six months through targeted performance work.
99.9% API uptime
Maintained near-perfect uptime across multiple production services with proactive monitoring.
95%+ ML accuracy
Integrated machine-learning models delivering prediction accuracy above 95% in production.
Polyglot data wins
Optimized storage across polyglot databases, reducing query time by 40%.
Have a hard problem?
Let's talk.
Open to senior full-stack, backend and platform roles. Reply within 24 hours.