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Serhii Lihus
Full-Stack PHP Developer
Kyiv, Ukraine | [открыть контакты](см. выше в блоке «контактная информация») | [открыть контакты](см. выше в блоке «контактная информация») | [открыть контакты](см. выше в блоке «контактная информация»)

SUMMARY
Self-taught and adaptable Full-Stack PHP Developer with 8+ years of experience building scalable, data-driven
web applications. Strong focus on modernizing legacy systems, API architecture, and cloud-ready deployments
on AWS. Skilled in React, Symfony, Laravel, Contao 5.3, and Ionic.

CORE SKILLS
Languages: PHP, JavaScript (ES6+), TypeScript, SQL, Bash
Frameworks: Laravel (5.4–10), Symfony, Contao 5.3, Kohana, Vue.js, React, Angular/Ionic
Databases: MySQL, MariaDB
DevOps / Tools: AWS (SNS, Lambda, EC2, Secrets Manager), Docker, Jenkins, Git, CloudFormation
Frontend: React (Redux), Vue.js, Angular 13+, HTML5, CSS3, SCSS
Testing: PHPUnit
CMS: WordPress/WooCommerce, Contao
Other: REST & GraphQL APIs, Microservices, Performance Optimization, CI/CD Pipelines

EXPERIENCE
Full-Stack PHP Developer — Argus Media (Remote)
Feb 2023 – Present | Kyiv, Ukraine
• Leading development of Contao 5.3-based OMR platform for energy market dashboards.
• Implemented advanced caching systems to improve API response performance and reliability.
• Refactored legacy codebase, introducing modern Symfony and Angular best practices.
• Integrated modern Highcharts visualizations across multiple analytics pages.
• Designed PubNub/Lightstreamer streaming architecture and heartbeat services in Angular/Ionic hybrid apps.
• Supported and released cross-platform mobile app (Android & iOS) built with Angular/Ionic.
• Collaborated on AWS infrastructure setup using SNS, Lambda, and Secrets Manager for secure system events.
PHP Developer — CUDEV
Oct 2022 – Oct 2022
• Supported and refactored legacy PHP 5 (Kohana) project migrating to PHP 7.
• Fixed database query bottlenecks and improved API performance.
• Environment: AWS Cloud9, Docker, GraphQL.
PHP Developer — Yael Acceptic
Mar 2018 – Sep 2022
• Created and maintained Laravel/Vue.js and Angular web apps.
• Migrated PHP 5.3 apps to PHP 7, improving performance by 30%.
• Built internal JSON APIs for medical systems (SOAP + REST).
• Dockerized environments and automated builds via Jenkins.
PHP Developer — LENAL / ITernal Group
Jun 2017 – Mar 2018
• Developed Symfony 2.8 / Laravel 5.4 applications.
• Configured DigitalOcean servers and wrote technical documentation.
• Built WordPress-based e-commerce sites.
PHP Developer — Pay Per Call Inc.
Aug 2016 – Jun 2017
• Created and maintained custom PHP websites and REST APIs.
• Integrated Google Maps API, FusionCharts, and D3.js for dashboards.
• Designed and optimized MySQL schemas.

EDUCATION
Borys Grinchenko Kyiv University — B.Sc. in Computer Science (2010 – 2014)
Kyiv Municipal Language School — English Language Program (2005 – 2007)

CERTIFICATIONS
• PHP: Design Patterns — LinkedIn
• Redis RU101 / RU102JS — Redis Labs
• Software Design Principles — Codecademy

LANGUAGES
English (Fluent) • Ukrainian (Native) • Polish (Intermediate)