Станіслав

BEREZYUK STANISLAV
Lead Backend Developer (Symfony)

SKILLS
Backend:
PHP 7.x – 8.2, Symfony (5.x/6.x), Doctrine, REST API,
SOAP
Databases:
MariaDB, MySQL, PostgreSQL, MongoDB, ClickHouse,
ABOUT ME Redis
8+ years of PHP/Symfony Messaging/Protocols:
experience | Team Leadership |
System Architecture | DevOps
RabbitMQ, MQTT (Mosquitto), WebSockets (Centrifugo)
DevOps & Infra:
LANGUAGES Linux, Docker, Nginx, Bitbucket CI/CD, Prometheus,
Grafana
ukrainian (native)
russian (native) Documentation:
english (B1-B2) OpenAPI 3.0 / Swagger, Confluence
Management:
EDUCATION Writing and structuring technical tasks, code review,
Medicine cross-team coordination, technical interviews,
Dnipro State Medical University
2002-2008
mentoring, Jira, YouTrack, Agile

Dnipro, Ukraine [open contact info](look above in the "contact info" section) @atmor85 /stanislav-berezyuk/

EXPERIENCE
TEAM LEAD / BACKEND DEVELOPER
Vending-Land LLC
Dec 2024 – Present (part-time)

Designed and developed a vending device monitoring system using PHP 8.2 + Symfony
6.4 + MariaDB + MongoDB + Redis + RabbitMQ + MQTT (Mosquitto)
Implemented real-time data delivery via WebSockets (Centrifugo) and observability with
Prometheus/Grafana
Integrated third-party APIs: payment systems, government services (Diia), and others
Built ELT pipelines (Airbyte) and OLAP analytics layer (ClickHouse + Superset)
Leading the backend team: task planning in Jira, code reviews, technical documentation
(Confluence, OpenAPI 3.0)
 Conducted technical interviews for backend and QA candidates
Participated in R&D initiatives to evaluate new tools, frameworks, and architectural
approaches
Coordinated cross-team collaboration across embedded, mobile, backend, and frontend
teams
Managing infrastructure: Linux servers, Docker, Nginx, Bitbucket CI/CD

BACKEND DEVELOPER
Vending-Land LLC
Oct 2021 – Nov 2024 · 3 years (part-time)

Designed and developed the initial version of the vending monitoring platform (PHP
7.4/8.1, Symfony 5/6, Doctrine 2, MySQL/MariaDB/PostgreSQL)
Managed servers, CI/CD pipelines (Bitbucket), Docker, Nginx, Mosquitto
Took on team coordination responsibilities: code reviews, task definition, and developer
mentoring

PHP SYMFONY DEVELOPER
GreenGo LLC
Mar 2022 – Present

Developed a multi-line insurance aggregator (car, health, cargo) on PHP 8.2 + Symfony
6.4 + MariaDB + MongoDB
Integrated numerous third-party APIs and region-specific payment systems via REST &
SOAP
Performed DevOps duties: server configuration, monitoring, CI/CD maintenance
Conducted technical interviews for backend developer candidates; mentored junior
developers

PHP SYMFONY DEVELOPER
Networks LLC
Sep 2017 – Feb 2022 · 4.5 years

Built car insurance platforms for agents and vehicle inspection services (PHP 7.2,
Symfony 5, Yii 2, Doctrine 2, MariaDB)
Integrated 30+ third-party APIs with close cross-team collaboration and 4+ payment
systems
Contributed to code quality through reviews and mentoring

UNITY3D DEVELOPER
Ardas International Inc. (contract)
Jan 2019 – Jun 2019 · 6 months

Developed a VR training system for soccer referees (Unity 2017, C#, SteamVR, HTC Vive)
Integrated with backend API (Java + PostgreSQL); collaborated with an international
(Israel-based) team

EARLIER CAREER
Unity3D Development
2017 – 2018 · Freelance & contracts

Shipped a 3D Android game from scratch (Unity3D 5.6, C#) and contributed to several
indie projects