Semih Unaldi
Staff Software Engineer at Yomly
Dubai, Dubai, United Arab Emirates
Summary
👤
Senior🎓
Top SchoolSemih Unaldi is a Staff Software Engineer with 11+ years of experience building scalable backend systems, cloud infrastructure, and data-driven product features across startups and enterprise environments. He has progressed from hands-on development to leading multi-team engineering efforts, driving measurable business outcomes such as multi-million euro revenue lifts and significant growth in rewards adoption at Talabat. Semih combines systems-level architecture work—introducing tools like Camunda and SonarQube and modernizing legacy stacks—with cost-optimization and operational improvements that halved QA costs and cut production spend. An active open-source contributor, he integrated multiple crypto exchanges into the popular XChange Java library, demonstrating attention to API interoperability and real-world trading data flows. Based in Dubai, he balances technical leadership with mentorship and a knack for turning user feedback into product improvements, and off-hours he’s known for DIY projects like building a 3-meter sailboat.
11 years of coding experience
12 years of employment as a software developer
Bachelor's Degree Electronics and Communications Engineering, Bachelor's Degree Electronics and Communications Engineering at Yıldız Teknik ÜniversitesiFeza Gürsey Institute Augmented Mechanics, Feza Gürsey Institute Augmented Mechanics at Boğaziçi University
Turkish, English
Stackoverflow
44reputation
13kreached
5answers
2questions
Github Skills (21)
crypto10
apim10
bitcoin10
bitcoins10
cryptocurrencies10
java10
cryptocurrency10
exchange10
javas10
api10
api-design9
restful-api9
api-rest9
rest-api9
jpa6
Programming languages (3)
Github contributions (5)
knowm/XChange
Nov 2017 - Dec 2017
XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 4 PRs in 8 days
Contributions summary:Semih primarily contributed to integrating new cryptocurrency exchanges (BTCTurk, Paribu, Koineks, and Bittrex) into the XChange library. Their work involved implementing market data APIs for these exchanges, specifically focusing on ticker information. They also adapted data structures to match the XChange library's format. Additionally, the user added support for Bittrex's API v2, incorporating a "GetLatestTick" method.
apiexchangejava-librarykucoinexchanges
semihunaldi/amazonlambdatest
Apr 2017 - Mar 2020
AWS Lambda Java test function
Contributions:1 PR, 6 pushes, 1 branch in 2 years 11 months
aws-lambdaaws-lambda-javajava-testawsjava-lambda
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