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vacha59

VKalek

@vacha59

Backend Developer

Ukraine
English, Ukrainian, Russian
About me
I am a hands-on backend developer specializing in high-stress debugging, system stabilization, and connecting chaotic APIs into clean production code. I specialize in jumping into messy codebases to find root causes of errors and building robust payment infrastructure and data pipelines.... Read more

Skills

v
vacha59
VKalek
Offline • 
Average response time: 1 hour

See my services

Bug Fixes
I will debug and optimize python backend fastapi django or flask queries
From$15 / projectMore details
API & Integrations
I will build custom webhook API and data pipelines for stripe airtable sheets
From$20 / projectMore details

Work experience

Freelancer.com

freelance

Freelancer.com • Freelance

Mar 2022 - Present • 4 yrs 4 mos

built and optimized backend services using django, fastapi, and flask for clients worldwide. integrated secure payment gateways (stripe, paypal) and resolved complex webhook sync issues. developed high-performance web scrapers and built clean rest apis to deliver structured data. integrated custom third-party integrations (crm, google sheets, airtable) to automate business workflows.