Sissy Themeli
Senior Software Engineer at Unitary
Athens, Attica, Greece
Summary
👤
Senior🎓
Top SchoolSissy Themeli is a Staff Software Engineer with ~9–10 years building resilient backend systems and APIs for fast-moving SaaS startups, currently shaping video understanding AI at Unitary. She led a major backend redesign using Temporal workflows and microservices that halved customer onboarding time and boosted developer velocity, and has a strong track record of improving CI/CD, observability, and workflow recovery. Her background blends applied research in deep learning and argument mining with hands-on engineering—she built NLP-driven argument mining systems at NCSR Demokritos and production-grade dialog managers at voiceweb. Comfortable in remote-first environments, she mentors teams, organizes knowledge-sharing groups, and bridges product, ML, and engineering needs to deliver measurable customer outcomes. Academically grounded with an M.Sc. and ongoing PhD work in argument mining, she pairs rigorous research thinking with pragmatic system design. Outside work she brings creative energy from theatre, music, cinema and hiking, which she credits for sustaining long-term curiosity and problem-solving stamina.
9 years of coding experience
6 years of employment as a software developer
Bachelor of Science (B.Sc.), Managment and Computer Science, 7/10, Bachelor of Science (B.Sc.), Managment and Computer Science, 7/10 at Athens University of Economics and BusinessPre-M.Sc., Computer Science, Pre-M.Sc., Computer Science at National & Kapodistrian University of AthensSecondary Education, General Studies, 19/20, Secondary Education, General Studies, 19/20 at Lycée Franco-Hellénique Eugène Delacroix
Greek, English, French
Stackoverflow
811reputation
31kreached
7answers
13questions
Github Skills (35)
json10
android-application10
java9
kotlin9
android9
restful9
weka8
rabbitmq6
hibernate6
sql6
spring-data6
python6
django6
pandas6
celery6
Programming languages (3)
Github contributions (5)
sissythem/sissythem.github.io
Feb 2021 - Nov 2022
Contributions:68 commits, 52 pushes, 1 branch in 1 year 9 months
sissythem/MeetingSchedule
Oct 2018 - Aug 2022
Contributions:2 PRs, 16 pushes, 3 branches in 3 years 10 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.