Владислав

VLADYSLAV SAVRANSKYI
Senior PHP Backend Developer (Laravel)
Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

CAREER ACHIEVEMENTS
• Designed and built a self-service Report Builder, a flagship feature of a US K–12 EdTech platform used daily across
150–200 district accounts.
• Led the migration of reporting from MySQL to Amazon Redshift, cutting report generation from 60+ seconds to a
few seconds and refreshing all data every 30 minutes instead of once a day.
• Built the automated assignment scheduling engine that generates thousands of student assignments daily.

SUMMARY
Senior PHP Backend Developer with 7+ years of backend experience, including 5+ years with Laravel/Lumen. Focused on
complex business logic, SQL performance and clean backend architecture, with hands-on AWS experience (Redshift,
SQS). Previously built e-commerce platforms, ERP and payment integrations. Looking for a backend role in a stable, well-
organized remote team.

PROFESSIONAL EXPERIENCE

Intersog Remote
Senior PHP Backend Developer Oct 2021 – Jan 2026
Client: US K–12 EdTech SaaS platform for science learning, 150–200 school district accounts. Team of 6–10 engineers.
• Designed, built and owned Report Builder, a standalone self-service reporting service that replaced manual
developer-run exports with user-configured reports, used daily by teachers and administrators.
• Engineered a flexible report engine with ~10 configurable content blocks, multiple metrics per block, 7 grouping
levels and dynamic report templates tailored to each teacher's classes and activity.
• Designed an algorithm that re-scopes shared reports on the fly to the recipient's role across 6–7 user roles, so a
shared report never exposed data beyond the recipient's permissions.
• Built and maintained an asynchronous aggregation pipeline on MySQL (nightly full aggregation plus 30-minute
incremental updates for active classes) that kept reports responsive for ~3 years as data volumes grew.
• Led the migration of reporting workloads from MySQL to Amazon Redshift and rewrote all report queries, cutting
generation time from 60+ seconds (browser timeouts at district and school level) to a few seconds for any report on
tens of GB of activity data.
• Increased the refresh rate of all reporting data from once a day to every 30 minutes and retired the MySQL
aggregation pipeline, simplifying the reporting architecture.
• Built the automated assignment scheduling engine behind the platform's pacing feature, generating thousands of
student assignments daily from configurable calendar plans via scheduled background jobs.
• Co-developed the platform's real-time notification system using WebSockets (Laravel Broadcasting).
• Worked directly with the client's CTO to discuss features, requirements and task scope.
Tech: PHP 8.x, Laravel, Lumen, MySQL, Amazon Redshift, AWS SQS, WebSockets, Docker, PHPUnit, CI/CD
Redentu Remote
PHP Backend Developer (Laravel) Jul 2020 – Oct 2021
• Built Laravel backends from scratch for 3 client projects: a football club website, a social networking platform with a
real-time chat backend on WebSockets, and a REST API (Laravel Sanctum) for a mobile app tracking working hours
and on-site location of workers in Australia.
• Extended an existing e-commerce platform and built the initial backend of the company's internal time-tracking
product.
• Integrated Google Pay payments via Stripe and ran a master class on the integration for the development team.
• Set up GitLab CI/CD pipelines for client projects.
• Ran an internal Python fundamentals course for colleagues (6+ sessions, ~10 people).
Tech: PHP, Laravel, REST APIs, Laravel Sanctum, WebSockets, Stripe, Google Pay, GitLab CI/CD
Freelance & Side Projects Remote
Python Developer (part-time) 2020 – 2022
• Built 2 dropshipping clothing stores with Django, integrated with a supplier's open API.

• Fixed bugs and delivered new features for existing Django and Flask websites.
• Refactored an entire module of a custom FastAPI + Tortoise ORM system.
• Wrote 10+ custom automation scripts for freelance clients.
Tech: Python, Django, Django REST Framework, FastAPI, Flask, Tortoise ORM, PostgreSQL, JWT, Swagger/OpenAPI, web
scraping
Bleecker Agency Kryvyi Rih, Ukraine
PHP Backend Developer Jan 2020 – Jul 2020
Developed the backend and frontend for 3 OpenCart e-commerce stores for small-business clients.
Tech: PHP, OpenCart, MySQL
Flabers Kryvyi Rih, Ukraine
PHP Backend Developer Jun 2018 – Dec 2019
• Developed the order and inventory management system of a large auto parts retailer, which grew from an OpenCart
store into a full platform for orders, warehouse stock and sales analytics, integrated with 1C:Enterprise (ERP).
• Built shelf-level stock tracking for the retailer's physical warehouse, with stock updated automatically on each sale.
• Launched 4 OpenCart e-commerce stores from scratch for small-business clients across various industries.
Tech: PHP, OpenCart, WordPress, MySQL, 1C:Enterprise
Slice Planet Remote
Frontend Developer Jul 2017 – Jun 2018
Built pixel-perfect HTML/CSS layouts (BEM) and complex interactive UI in vanilla JavaScript.
Gagarin Web Kryvyi Rih, Ukraine
HTML Developer Jul 2016 – Jul 2017
Built HTML/CSS layouts for landing pages.

EDUCATION
Kryvyi Rih State Pedagogical University Kryvyi Rih, Ukraine
Specialist Degree in History (5-year program) 2009 – 2014

LANGUAGES
English: Professional
Ukrainian: Native

ADDITIONAL INFORMATION
IT Skills
Programming Languages: PHP 8.x, Python, SQL, JavaScript
Frameworks & CMS: Laravel, Lumen, Django, FastAPI, Flask, OpenCart, WordPress
Databases: MySQL, Amazon Redshift, PostgreSQL
Cloud & DevOps: AWS (Redshift, SQS), Docker, Git, CI/CD (GitLab CI), Linux (10+ years), Bash scripting, Nginx, Apache,
cron, Supervisor
Testing & Monitoring: PHPUnit (unit and feature tests), Datadog, Sentry, Xdebug
APIs & Integrations: REST APIs, WebSockets (Laravel Broadcasting), JWT, Laravel Sanctum, OpenAPI/Swagger, Stripe,
Google Pay, 1C:Enterprise (ERP), Telegram Bot API
Frontend: HTML/CSS (BEM), JavaScript, jQuery
Tools & Process: Scrum (2-week sprints), Jira, Confluence, Figma
AI Tools: GitHub Copilot, Claude Code, OpenAI Codex
Practices: Clean Architecture, role-based access control (RBAC), SQL query optimization, background jobs and queues
(Laravel Queues, AWS SQS)
Soft Skills: End-to-end ownership of complex features (from requirements to production support), direct client
communication, knowledge sharing (internal Python course, Google Pay master class), onboarding new team members,
5+ years of remote work.