Open to opportunities

Hadi Khan

@hadikhan3

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Senior full-stack software engineer specializing in scalable web applications and AI integrations.

India

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What I'm looking for

I seek roles building scalable, high-performance web platforms that leverage AI/LLM, strong engineering practices, and cross-functional collaboration, with opportunities to mentor and drive product impact.

I am a Senior Full-Stack Software Engineer with 5+ years of experience building scalable applications using React, Node.js, PostgreSQL, MongoDB, and AWS. I have led design and delivery of high-impact systems—such as a multi-state ticket management platform generating $75M annual revenue—and implemented subscription/payment systems, Okta OAuth2/OIDC SSO, microservices, and performance optimizations that reduced API latency from 6.2s to 0.5s.

I mentor engineers and collaborate cross-functionally to drive products from concept to production, integrating LLM/AI features (ChatGPT APIs, prompt-to-SQL with Pydantic AI), optimizing databases (+40% query improvements), and designing RBAC and secure payment architectures with Stripe to improve security, UX, and operational efficiency.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Hughes Systique Corporation

Oct 2021 - Present (4 years)

Led design and development of a multi-state ticket management system generating $75M annual revenue; optimized APIs to reduce latency from 6.2s to 0.5s and scaled to 1M+ records while integrating Stripe subscriptions and Okta SSO.

React PostgreSQL MongoDB AWS Lambda Okta Stripe Performance Tuning Microservices

Software Engineer

Svayam Infoware Pvt. Ltd

Jan 2020 - Oct 2021 (1 year 9 months)

Built a full-stack ERP web app that increased engagement by 25%, implemented Okta OAuth2/OIDC for secure authentication, and integrated MongoDB for flexible document storage to improve system capabilities.