Shay Tessler
Freelance Developer at Una
Tel-Aviv District, Israel
Summary
👤
SeniorShay Tessler is a founder and seasoned full-stack engineer with 11 years of experience building resilient, production-grade systems and workflow-driven products from Tel Aviv. He founded Una to solve the quiet gaps that erode client trust for solo matchmakers, architecting a Python-based, multi-service platform that blends React Native, Neo4J, SOLR, and message-driven infrastructure to ensure commitments never slip. Shay has a track record of improving reliability and performance at scale—from refactoring critical microservices at Fiverr to stabilizing AI engines and designing genome-ordering systems for clinical use—while also hiring and mentoring teams. Practical, product-focused, and detail-oriented, he combines hands-on coding with a knack for operationalizing human workflows so nothing important depends on memory.
10 years of coding experience
19 years of employment as a software developer
Stackoverflow
1,068reputation
172kreached
7answers
52questions
Github Skills (93)
react-native-module10
native-module10
browserify10
rollupjs10
offline-maps9
yaml-configuration9
jscodeshift9
django8
piping8
bundler8
swc8
react8
expo8
system-configuration8
react-native8
Programming languages (7)
Github contributions (5)
shay-te/email-core-lib
Apr 2022 - Feb 2025
Contributions:3 reviews, 9 pushes in 2 years 10 months
shacoshe/bigpipe-response-example
Dec 2019 - Jan 2020
Contributions:14 commits, 1 push in 1 month
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