Andrej Vajagic
Tech Lead Frontend at Ananas E-commerce
Serbia
Summary
👤
Senior🎓
Top SchoolAndrej Vajagic is a Tech Lead Frontend with 11 years of experience specializing in React and Next.js, currently leading a 14-engineer frontend team at Ananas E-commerce. He combines hands-on development with strategic leadership, driving migrations to Next.js 15, building a modular, backend-agnostic component library with full unit test coverage, and establishing robust E2E and CI/CD practices. Andrej has a strong track record of improving performance and observability—cutting Lambda sizes, reducing error rates by 85%, and resolving critical SEO and Black Friday bottlenecks. He’s also results-oriented on the business side, enabling marketing campaigns through caching and dynamic pricing fixes and delivering conversion uplifts via A/B testing in prior roles. Comfortable at the intersection of design and engineering, he brings a background in UI/UX and graphic design that informs user-centric interfaces and pragmatic product decisions. Notably, he builds in-house solutions when third-party tools fail, demonstrating a pragmatic, resourceful approach to high-stakes engineering challenges.
10 years of coding experience
10 years of employment as a software developer
medical technician, General course, medical technician, General course at Secondary Medical SchoolFACULTY OF SCIENCES University of Novi Sad
English, Serbian
Github Skills (18)
expressjs7
mongoose7
mongod7
react5
nodejs5
mern5
boilerplate4
mongodb4
react-redux3
apollo-server3
nextjs2
react-hooks2
crud2
parcel2
javascript1
Programming languages (2)
Github contributions (5)
drejcreative/Template-for-Gulp-workflow
Jun 2015 - Jun 2015
Contributions:15 commits, 13 pushes, 1 branch in 6 days
drejcreative/Gulp-Workflow
Oct 2016 - May 2017
Contributions:28 commits, 21 pushes, 1 branch in 7 months
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