Khaled Osama is a product-oriented back-end engineer with a decade of software experience and over five years focused on designing and scaling APIs, microservices, and distributed systems across fintech, real estate, and edtech. He specializes in Node.js (NestJS/Express) and Kotlin, with deep operational experience on PostgreSQL, MongoDB, Redis, and AWS, and a strong emphasis on observability, clean architecture, and developer experience. Khaled has led initiatives that improved feature adoption and large-scale workflow performance, introduced practices like A/B testing, UUID bucketing and Git bisect, and implemented robust patterns such as sagas and idempotency for resilient money and chat flows. Comfortable in remote-first teams, he balances hands-on engineering with technical stewardship—writing design docs, running presentations, and maintaining CI/CD and testing practices. Outside client work he contributes to open source (including Mongoose and Fig.io), publishes technical blogs, and maintains a lightweight Algolia ORM, reflecting a lasting commitment to practical tooling and knowledge sharing.
10 years of coding experience
5 years of employment as a software developer
Bachelor of Engineering - BE, Computer Software Engineering, 74%, Bachelor of Engineering - BE, Computer Software Engineering, 74% at Cairo University (جامعة القاهرة)
A Query builder designed to parse and object and output a string to be passed to algolia search
Contributions:5 releases, 3 reviews, 38 commits in 1 year
queryto-stringtypesensestringalgolia-search
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