Viacheslav Zhabonos
@vzhabonos
I build stable, high-load backend services, APIs, and integrations.
UkraineWhat I'm looking for
I've built and maintained backend services at Yellow Stone since 2021, working across PHP, Yii2, and Node.js on internal and product projects. I designed a domain-infrastructure service and integrated Cloudflare API to automate domain-related operations.
On a high-load Node.js project, I implemented database-query caching that reduced constant CPU load from approximately 20–25% to 5–10% and remains stable in production. I also contribute to module and API design, Docker image creation, GitLab CI configuration, and an early Yii2-to-Symfony migration.
Previously at FieldPulse, I maintained the backend API for a field service management SaaS product and refactored its QuickBooks integration. Across DIGOPS, TERNALA, Wetelo, and freelance projects, I've delivered PHP applications, APIs, CRM functionality, payment integrations, e-commerce systems, and real estate platform backend logic.
I focus on practical, stable, and maintainable solutions, with hands-on experience optimizing SQL, databases, caching, integrations, legacy code, and production performance.
Experience
Work history, roles, and key accomplishments
Backend Developer
Yellow Stone
Oct 2021 - Present (4 years 10 months)
Developed and maintained backend services using PHP, Yii2, and Node.js, including designing an internal domain management service and integrating with Cloudflare API. Implemented caching for database queries in a high-load Node.js project, reducing CPU load from 20-25% to 5-10%.
Backend Developer
FieldPulse
Nov 2020 - Oct 2021 (11 months)
Maintained and developed the backend API of a SaaS product for field service management, including refactoring a QuickBooks integration.
PHP Developer
DIGOPS Ltd.
Jul 2019 - Oct 2020 (1 year 3 months)
Worked on several PHP backend applications, maintaining existing logic and implementing new functionality, including APIs, databases, integrations, and payment gateways. Developed a local development environment using Docker.
Freelance PHP Developer
Freelance
Feb 2019 - Jun 2019 (4 months)
Developed a CRM system on Yii2 for a state-owned enterprise, implementing CRUD modules, reports, and backend logic.
PHP Developer
TERNALA
Oct 2018 - Feb 2019 (4 months)
Worked on the design and development of an API for a real estate platform using Laravel, Node.js, and PostgreSQL. Participated in developing the administrative part using SemanticUI.
PHP Developer
Mobilife+
Feb 2018 - Oct 2018 (8 months)
Worked on small internal projects using Laravel and Node.js, developing backend functionality and gaining practical experience with web security and HTTP.
PHP Developer
Wetelo, Inc.
Jun 2017 - Feb 2018 (8 months)
Developed and maintained Yii1 web applications for e-commerce projects and company websites, working with PHP, MySQL, JavaScript, and backend logic. Gained first practical experience with Node.js and React.
Freelance Web Developer
Freelance
Feb 2017 - Jun 2017 (4 months)
Worked independently with clients as a freelance web developer, maintaining e-commerce projects and company websites. Developed landing pages and small corporate websites using PHP, HTML, CSS, JavaScript, and MySQL.
Education
Degrees, certifications, and relevant coursework
Lutsk National Technical University
Master's Degree, Computer Science
Master's Degree in Computer Science from Lutsk National Technical University.
Availability
Location
UkraineAuthorized to work in
Website
plainsimple.devPortfolio
plainsimple.dev/projectsSalary expectations
Job categories
Skills
Interested in hiring Viacheslav?
You can contact Viacheslav and 90k+ other talented remote workers on Himalayas.
Message ViacheslavGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
