Description

Hi, I’m Oleksandr — a App Developer and Python Software Engineer focused on building real, usable applications end-to-end. I help clients turn ideas into working products: MVPs, internal tools, and full-featured apps with clean architecture and reliable performance. What I can build for you: • Application development (from MVP to production) • Backend for apps: REST APIs, database design, auth, integrations • Automation inside your app: workflows, schedulers, background jobs • Quality & delivery: tests, CI, Linux deployment (optional but available) I don’t just “write code” — I design solutions that are maintainable, scalable, and easy to extend. If you need someone who can take ownership of an app and ship it — let’s talk.

Industry field of expertise

Languages

Portuguese
Native or bilingual
Ukrainian
Native or bilingual
Russian
Native or bilingual
English
Fluent
German
Basic
Spanish
Conversational

Workplace preferences

Can work on-site

Frankfurt am Main (up to 50km)

RedexCompany,Portugal
Regional Operations Manager
DIGITAL AND IT
January 2015 - January 2018 (3 years)
Lisbon, Portugal
Conducted final interviews during the hiring process. Managed a team of30+ employees, overseeing daily operations. Increased productivity and collaboration across departments. Grew revenue by €23M within 2 years. Implemented initiatives to improve efficiency.

Managed full project lifecycle from planning to deployment. Supervised a technical team, integrated QA automation, and optimized Linux-based infrastructure. Delivered multiple software releases with high performance and reliability across distributed environments.

Operational Management Business analysis HR Management
UberPartnerFleet,Portugal
IT Support & Data Access Specialist
DIGITAL AND IT
January 2018 - January 2022 (4 years)
Lisbon, Portugal
Provided technical client and b2b support and data management for Uber's internal fleet systems. Developed automation scripts for data analytics and reporting. Maintained Linux-based environments and internal tools for operational teams. Improved data workflows between support, drivers, and management systems.
Technical Support Python Data Engineer Linux
Airbnb Inc.,
Customer Service & QA Team Lead
DIGITAL AND IT
January 2022 - January 2025 (3 years)
Lisbon, Portugal
Supervised QA processes and digital support tools for global service teams. Designed and executed test cases, tracked bugs, and improved workflows. Utilized Confluence and JIRA for sprint documentation and version tracking. Increased service KPIs through automation and proactive process optimization.
QA testing Business analysis DevOps

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12thGrade
2013
12thGrade
IT
Private European University of Kyiv
IT

Check out Oleksandr's education

Oleksandr Kovalchuk

App Developer & Software Engineer, Backend & Front

About Oleksandr

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