Davor Andrejic
@davorandrejic
I build scalable backend APIs, databases, and search systems.
ZimbabweWhat I'm looking for
I've built and modernized backend systems for TinEye and self-employed e-commerce and newsfeed projects, using Node.js, NestJS, PostgreSQL, Elasticsearch, and Apache Solr. My work has reduced server response times by 150ms, improved database storage and retrieval by 35%, and enabled ranked newsfeeds to return hundreds of posts in milliseconds.
I bring seven years of experience across JavaScript, TypeScript, Python, and PHP, with a focus on secure, high-performance APIs and reliable database architecture. I enjoy solving complex technical challenges while collaborating closely with teams and clients.
Experience
Work history, roles, and key accomplishments
Full Stack Engineer
Self Employed
Aug 2022 - Present (4 years 2 months)
Optimized existing Express.js backend code, reducing server response time by an average of 150ms for E-commerce products. Implemented a score-based newsfeed algorithm using Elasticsearch and enhanced system performance with Nest.js and PostgreSQL.
Education
Degrees, certifications, and relevant coursework
University of Belgrade
Bachelor's degree, Computer Science
2013 - 2018
Pursued a Bachelor's degree in Computer Science, focusing on core computer science principles and practices.
Tech stack
Software and tools used professionally
Availability
Location
ZimbabweAuthorized to work in
Job categories
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