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  1. Databases & SQL

PostgreeSQL

74


Freelancer Andrii — Ukraine. Core skill — Web Programming, Databases & SQL
Andrii — eskobar

Web Programming · Databases & SQL

Ukraine Ukraine
248

Results-driven developer with 10+ years in software engineering and 4+ years focused on building scalable, high-availability SaaS services with Ruby on Rails. Delivered mission-critical financial automation features while participating in platform memory and performance optimizations to improve stability for large-scale accounting and BI systems. Strong skills in Ruby/Rails, REST APIs, Sidekiq, RSpec, PostgreSQL…

Freelancer Mykola T. — Ukraine, Kyiv. Core skill — Python, Databases & SQL
Mykola Trofimiuk — mykola_trofimiuk

Python · Databases & SQL

Ukraine Kyiv, Ukraine
160

Senior Python developer with 10+ years of experience in backend development. I specialize in building scalable APIs and microservices, designing reliable system architecture, and working with various databases (SQL and NoSQL). Focused on clean code, performance, and delivering stable solutions tailored to business needs.


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