08/25/2026 updated

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Full Stack Developer | Python, JavaScript, PHP, WordPress & Linux

Riga, Latvia
Worldwide
Bachelor in Computerised Control of Electrical Technologies
Riga, Latvia
Worldwide
Bachelor in Computerised Control of Electrical Technologies

Profile attachments

Serhii Kolodych.pdf

About me

I’m a software engineer with strong experience in programming, software development, debugging, APIs, and computer science. I’m comfortable working across backend and full-stack systems, analyzing complex problems, and evaluating technical solutions.

HTMLGoogle AdWordsCascading Style Sheets (CSS)LinuxE-CommerceGitHubGoogle AnalyticsPython (Programming Language)SEO CopywritingSQL DatabasesSupportDeskWordPressGitDocker
Python & Backend Development
Strong hands-on experience developing backend solutions with Python, including automation, web scraping with BeautifulSoup and Selenium, REST APIs, asyncio, SQLAlchemy, and Telegram bots. Built automated systems for processing 16K+ job vacancies daily, categorization, CV matching, and personalized notifications.

Full Stack Web Development
3+ years of practical full-stack development experience across Python, JavaScript, PHP, HTML, and CSS. Experience with React.js, Vue.js, Node.js, jQuery, and Bootstrap. Built and deployed custom web platforms and WordPress solutions based on Figma designs.

Databases & DevOps
Experience designing and working with PostgreSQL and MongoDB, including data modelling and query optimisation. Comfortable deploying and maintaining applications on Linux environments using Ubuntu, Debian, Docker, and Nginx.

CMS & E-Commerce
Experience developing and maintaining WordPress, WooCommerce, Shopify, and Elementor solutions. Worked on custom WordPress themes, plugin configuration and replacement, content management, frontend improvements, and performance optimisation.

APIs & Automation
Strong experience integrating REST APIs, Telegram API, JSON-based services, and external platforms. Developed automated workflows using Python, asyncio, requests, Selenium, and BeautifulSoup. Built Telegram bots with persistent user data, automated processing, and real-time notifications.

Software Engineering & Problem Solving
Strong foundation in object-oriented programming, algorithms, databases, and software engineering. Experienced in debugging, refactoring existing systems, replacing outdated components, optimising performance, and working with unfamiliar technologies and codebases.

Customer Support & Client Communication
Professional customer support experience at Airbnb, where I resolved 10+ tickets daily and achieved a 90% Crewbie Love Score. Also have previous experience in project coordination and management, client communication, proposals, contracts, and coordinating technical teams.

Git & Collaborative Development
Experienced with Git, GitHub, and GitLab for version control and software development. Worked independently on freelance projects as well as with freelancers, in-house teams, and clients.

SEO, Marketing & Design
Professional experience with SEO, Google Ads, content management, and traffic growth campaigns across multiple countries. Also experienced with Figma, Photoshop, Adobe Illustrator, DaVinci Resolve, and CapCut.

Experience

Professional experience0 - 5 years
Freelancer since2023

Languages

EnglishFluentRussianNative speakerUkrainianNative speakerLatvianBasic knowledge

Project history

Freelance Full Stack Developer

Self-employed
Umsetzung von 20+ Projekten in Python, JavaScript, PHP, WordPress und Telegram-Bot-Entwicklung. Aufbau und Deployment von Web-Plattformen auf Linux mit Docker und Nginx. Entwurf und Abfrage relationaler und dokumentenbasierter Datenbanken (PostgreSQL, MongoDB) nach OOP-Prinzipien. Automatisierung von Workflows mit Selenium, BeautifulSoup und REST APIs.

Customer Support Specialist

Airbnb (SIA Webhelp)
Erreichung eines Crewbie Love Score von 90%; taeglich Bearbeitung von 10+ Tickets mit hoher Kundenzufriedenheit.

Project Manager - SEO & Digital

Nuuk Media OU
Verwaltung von SEO- und Traffic-Wachstumskampagnen fuer hochfrequentierte Casino- und Medienplattformen in 8+ Laendern. Koordination von WordPress-Updates, Content-Management und Plugin-Pflege.

Project Coordinator

2T-Digital SIA (IT & SEO Services)
Akquise neuer Kunden, Erstellung von Angeboten und Vertragsverhandlungen. Steuerung der Projektdurchfuehrung durch Freelancer und interne Teams sowie Praesentation von Ergebnissen gegenueber Kunden.

Hotel Manager

SIA Grand Hotel Imperial (Royal Square & Garden Palace Hotels)
Steigerung der Zimmerbuchungen um 15% durch Prozessverbesserungen und Management der Teamleistung.

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