David Kremer
Backend Lead Developer at SAHAR
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolDavid Kremer is a backend lead developer with a decade of experience building reliable, secure services across fintech and crypto, currently driving backend architecture and best practices at SAHAR. He spent four-plus years at Ledger integrating new cryptocurrency networks and refactoring core Vault APIs, pairing deep product knowledge with hands-on mentoring of junior engineers. His background spans production-grade APIs, payment systems, data aggregation and security-focused work, informed by early experience in system monitoring and DevOps. Trained as a physicist with a PhD-era research pedigree, he brings analytical rigor and a methodical approach to complex integration problems. Based in Paris, he blends academic discipline with pragmatic engineering to accelerate delivery of maintainable, auditable systems.
10 years of coding experience
6 years of employment as a software developer
Master's degree, Laser and Optical Engineering, Master's degree, Laser and Optical Engineering at Université d'AngersBachelor's degree, Physics measurements, Bachelor's degree, Physics measurements at IUT OrsayMaster's degree, physique subatomique et astroparticule, Master's degree, physique subatomique et astroparticule at Université Joseph Fourier (Grenoble I)
English, French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (115)
proxy10
websocket10
api10
debugging10
man-in-the-middle10
async9
rest9
swagger-ui9
json-schema9
fastapi9
security9
python9
swagger9
http9
openapi9
Programming languages (12)
Github contributions (5)
drake-mer/expensetrack
Feb 2017 - Feb 2023
Contributions:11 pushes, 1 branch in 6 years 1 month
drake-mer/smali_emulator
Jun 2018 - May 2025
This software will emulate a smali source file generated by apktool.
Contributions:61 pushes, 1 branch in 7 years
apktoolsmali
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