Marko Jovanović
Senior Backend Engineer at Upwork
Belgrade, Central Serbia
Summary
👤
Senior🎓
Top SchoolMarko Jovanović is a senior backend engineer with a decade of experience building scalable, secure systems and leading teams across startups and product companies. He combines a strong computer science and algorithms background with hands-on expertise in microservices, performance optimization, and AWS-driven DevOps. Marko has driven end-to-end solutions—from core engine refactors and high-throughput APIs to infrastructure design for teams without dedicated DevOps—and has a proven record of improving reliability and reducing technical debt. He regularly takes freelance pen-testing and advisory engagements, reflecting a practical blend of development and security experience. Passionate about open source and CTF-style security challenges, he brings a hacker’s curiosity to production-grade engineering. Based in Belgrade, he excels at turning complex business requirements into maintainable architectures that scale.
10 years of coding experience
6 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at University of BelgradeHigh School Degree Gymnasium department of Informatics, High School Degree Gymnasium department of Informatics at Gymnasium “Svetozar Marković” Jagodina
English, Serbian, German
Stackoverflow
215reputation
27kreached
4answers
9questions
Github Skills (200)
postgresql10
databases10
npm-package10
sap10
javascript10
txt10
browser10
ionic10
validation10
decorators10
hana10
data-mapper10
database10
sap-hana10
sqlite10
Programming languages (12)
Github contributions (5)
fr1sk/boban-bot
Apr 2018 - Jul 2018
Contributions:34 commits, 11 pushes, 1 branch in 2 months
fr1sk/chrome-close-to-the-left
Dec 2017 - Feb 2019
Contributions:25 commits, 21 pushes, 1 branch in 1 year 2 months
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