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Hassan Zameer

@hassanzameer

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Senior Full-Stack Engineer at Jobz who brought an AI recruitment platform from zero to live across web and mobile.

Pakistan

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At Jobz, I took an AI recruitment platform from zero to a live SaaS product approved on the Apple App Store and Google Play. I built its AI matching engine with Node.js, OpenAI, and LangChain, along with search across job listings and candidate profiles.

I developed Jobz’s React Native mobile app and React and Next.js web frontend, and owned authentication and credit-based Stripe billing. I also managed AWS infrastructure and built analytics dashboards to inform product iterations.

Previously, I delivered SaaS products and mobile applications at Devsinc, where I also built observability systems and managed Kubernetes deployments. At ERSTECH and WorldCall Telecom Limited, I worked on APIs, automated testing, and web and mobile interfaces.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Jobz

Jan 2024 - Present (2 years 9 months)

Founding engineer who built a high-concurrency SaaS platform from zero to live, including an AI matching engine, Elasticsearch-based search, React Native mobile app, and web frontend. Managed AWS infrastructure, Stripe billing, and mentored a team of 3-5 engineers.

NodeJS OpenAI Lang Chain Elasticsearch React Native React Next.js TypeScript Tailwind OAuth JWT Stripe AWS PostgreSQL Bull Analytics

Senior Software Engineer

Devsinc

Aug 2021 - Jan 2024 (2 years 5 months)

Delivered multiple SaaS products end-to-end for clients, building AI-assisted features, cross-platform mobile apps, Angular dashboards, and a full observability stack. Managed Kubernetes infrastructure, scaled Stripe payments, and mentored junior engineers.

NodeJS Express React Angular React Native MongoDB PostgreSQL OpenTelemetry Prometheus Grafana Kubernetes Stripe AWS Docker CI CD Jest Cypress Feature Flags A B Testing

Software Engineer

ERSTECH

Jan 2021 - Aug 2021 (7 months)

Built RESTful APIs in Node.js and Rails on PostgreSQL and MySQL, with query optimization and caching that reduced response times. Increased automated test coverage by 25% using Jest and RSpec, reducing production incidents.

NodeJS Ruby on Rails PostgreSQL MySQL Jest RSpec Agile

Junior Software Engineer

WorldCall Telecom Limited

Jan 2019 - Sep 2020 (1 year 8 months)

Built responsive web and mobile interfaces using React.js and React Native, developing fundamentals in component architecture, state management, and API integration. Integrated third-party APIs and adopted Git workflows and Agile processes.

React React Native Git Agile