Семен

SEMEN ZVEHINTSEV

BACK-E ND/F ULL-STACK DEVELOP ER
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | LinkedIn

SUMM ARY
Full-Stack Developer with 5 years of experience building, maintaining, and optimizing
web applications and backend systems. Skilled in PHP, Laravel, JavaScript, React.js, and
Vue.js Experienced in designing backend architecture, integrating third-party APIs,
developing microservices, working with databases, and solving complex business and
technical challenges.

SKILLS & COMPETENCIES
PHP, Laravel, Lumen, REST APIs, GraphQL, Microservices, API Integrations, MySQL,
PostgreSQL, MongoDB, Redis, JavaScript, TypeScript, Vue.js, React.js, jQuery, HTML,
CSS, SCSS, Docker, Git, WebSockets, Selenium.

PR OFESSI ONAL EXPER IENCE
F U L L-STAC K D EV ELOP ER — CO N ST RUCTI O N & ARCH I TE CTU RE P L ATF O RM
M AY 2025 – PRE SE N T
A platform designed for architects, builders, and other professionals to create
construction projects and generate estimates based on available building materials
and products.

• Developed backend functionality for creating projects using either prede ned
templates or user-uploaded project les.
• Integrated product data from multiple external sources, including third-party APIs
and web scraping of regional construction and building material stores.
• Developed data transformation and normalization logic to bring product information
from different sources into a uni ed internal structure.
• Worked with large volumes of product data, including prices, availability, packaging,
and other product attributes.
• Developed scraping and synchronization processes for periodically updating
product information.
• Implemented integrations between internal services and external data providers.

Technologies: PHP, Laravel, PostgreSQL, Redis, Docker, JavaScript, REST APIs,
GraphQL, Selenium, ChromeDriver, Web Scraping

F U L L-STAC K D EV ELO PER — MO NE Y T RAN SFE R P L ATF O RM
AP R IL 2 0 24 – AP RI L 2025
A nancial platform focused on issuing and managing virtual cards for online
payments. The platform supports both individual users and team-based accounts,
allowing users to manage cards and nancial operations.

• Integrated new payment providers for seamless transactions between banking and
crypto systems.
• Developed support for both individual users and team-based accounts with different
levels of access and permissions.
• Developed an authorization server for mobile application subscriptions and access
management.
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• Developed a Telegram bot that allows users to create and manage card-related
operations directly through Telegram.

Technologies: PHP, Laravel, Lumen, MySQL, MongoDB, Redis, JavaScript, Vue.js, REST
APIs, Docker

F U L L-STAC K D EV ELOPE R — TR AF F I C SYST EM CON TRO L
J U LY 2023 – APRIL 2 0 2 4
A CRM platform for managing leads, af liates, traf c sources, and lead generation
processes.

• Refactored existing functionality to improve maintainability and application
architecture.
• Integrated the platform with Jira, allowing users to create support tickets directly
from the CRM.
• Developed a exible scheduling system that allowed administrators to con gure
individual activation and deactivation schedules.
• Performed database maintenance, optimization, and structural improvements.

Technologies: PHP 8.2, Laravel, Vue 3, MySQL, JavaScript, Jira API, REST APIs

F U L L-STAC K DE VE LO P E R — CL I X TH E RAPY
JA NUARY 2 0 23 – J U LY 2023
A job marketplace connecting employers and job seekers. The platform allowed
employers to publish opportunities and candidates to search and apply for jobs.

• Implemented and improved user account functionality for managing pro les,
applications, and related information.
• Developed functionality for generating AI-based responses using information
extracted from user-uploaded documents.
• Fixed production issues and optimized existing functionality.
• Refactored parts of the application to improve maintainability and reduce technical
debt.

Technologies: PHP 7.4, Laravel, PostgreSQL, JavaScript, jQuery, HTML, REST APIs

F U L L-STACK F REE L AN CE D E V E LOPE R
O CTO B ER 2021 – JAN UA RY 2023
Worked on multiple web applications and client projects, focusing on development,
maintenance, integrations, and deployment.

• Developed new functionality for existing web applications.

• Maintained and refactored legacy codebases.

• Integrated third-party APIs and external services.

• Built frontend functionality using React.js and JavaScript.

• Con gured hosting environments and deployed applications to production servers.

• Worked with Linux, Nginx, and application infrastructure.

• Investigated and resolved production issues.

Technologies: PHP, Laravel, JavaScript, React.js, jQuery, MongoDB, MySQL, HTML,
REST APIs, Linux, Nginx
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