Радион

Radion Borysov L OC ATIO N Ukraine · Odesa · Remote

PHO NE [open contact info](look above in the "contact info" section)
Senior Fullstack PHP Developer · AI-Augmented EMAIL [open contact info](look above in the "contact info" section)
Engineering L IN K EDIN [open contact info](look above in the "contact info" section)
6+ years · 100k+ SKUs migrated · 40% perf gains · daily Claude borysov-233704196
Code operator. Building scalable e-commerce on Magento, Laravel, DJIN NI djinni.co/q/6256d3445a
and Shopify.

Available immediately · Open to remote Senior PHP / AI
Engineering roles

01 PROFILE

Senior Fullstack PHP Engineer with 6+ years building scalable, high-load e-commerce platforms on Magento 2, Laravel,
Symfony, and Shopify. Specialist in Magento -> Shopify migrations, API-first architecture, and performance engineering -
delivered platform performance gains up to 40%, cut API latency by 35%, and migrated catalogs of 100k+ SKUs with full SEO
and metafield preservation.
Daily operator of AI-augmented engineering workflows (Claude Code, Claude Skills, Cursor, Anthropic & OpenAI APIs). Ship
LLM-powered features end-to-end: MCP server integrations, tool-use APIs, prompt caching that reduces token spend by 60–
80%, and AI-assisted code-review pipelines. Bridge between classical back-end systems and modern AI infrastructure.

02 CORE COMPETENCIES

LANGUAGES & CORE PHP 8.3 / 8.4 PSR-12 Composer OOP / SOLID DDD TypeScript JavaScript (ES2024)

BACKEND & E-COM Magento 2 Adobe Commerce Laravel 11 Symfony PrestaShop 8 Shopify Liquid
Admin GraphQL Storefront API Shopify Functions Polaris App Bridge Headless Commerce

FRONTEND Vue 3 React SPA Integration Web Components Tailwind

AI / LLM ENG. Anthropic Claude API OpenAI API MCP Prompt Engineering Tool Use Structured Outputs
Prompt Caching

AI DEV TOOLS Claude Code Claude Skills Cursor Spec-driven Dev CLAUDE.md

ARCHITECTURE API-first Microservices Headless Commerce Event-driven RabbitMQ CQRS

PERFORMANCE & Redis Varnish FPC Elasticsearch MySQL Tuning Blackfire New Relic Sentry
DATA

TESTING & QUALITY PHPUnit Pest PHPStan Codeception Playwright (E2E) Cypress TDD Mutation Testing

DEVOPS & SEC. Docker Docker Compose GitHub Actions GitLab CI Linux / LEMP OAuth2 JWT
OWASP Top 10 RBAC

03 AI-AUGMENTED ENGINEERING TOOLKIT

Code generation & pair-programming LLM integration in production
Claude Code, Claude Skills, and Cursor driven by structured Anthropic & OpenAI SDKs: structured outputs, tool use, prompt
CLAUDE.md conventions, project-scoped subagents, and spec- caching (60–80% token reduction), streaming.
driven workflows.

MCP (Model Context Protocol) AI-assisted QA & developer experience
Adopted existing MCP servers (Shopify, GitHub, filesystem, LLM-generated PHPUnit / Pest suites, automated PR-review
Atlassian) inside Claude Code & IDE clients. prompts, release-note generation.

Guardrails & cost control
JSON-schema validation of model outputs, deterministic fallbacks for critical paths, latency & token-spend budgeting.

04 E D U C AT I O N 05 LANGUAGES

M.Sc., Computer Systems & Networks Engineering - Odessa Ukrainian Native
National Academy of Food Technologies (2008–2013) Russian Native / Fluent
M.Sc., Sports Coaching & Physical Education - National University English A2 -> B1 target Q4 2026 · daily
of Physical Education & Sport of Ukraine (2013–2015) practice; async written collaboration
06 WORK EXPERIENCE

Shopify Developer (Freelance) Feb 2026 - Present
Shopify Liquid · Metaobjects · Markets · Playwright · Remote
▸ Engineering custom Shopify storefronts: bespoke Liquid sections with JSON schema templating, Metaobject-backed CMS, multi-locale
rendering via Shopify Markets context.
▸ Authored Playwright-based E2E test suites covering checkout, cart drawer, megamenu, and localized PDP flows; wired into GitHub
Actions as a pre-deploy gate against the dev store.
▸ Operated a Claude Code and Claude Skills workflow for theme delivery - section scaffolding, Liquid schema validation, WCAG 2.2 a11y
audits; cut section-implementation time by ~50% vs. manual baseline.
▸ Performance budget: target <2.5 s LCP on 3G, zero render-blocking JavaScript, deferred third-party scripts, preload hints for hero
imagery.

Fullstack PHP Developer · ApCode Aug 2024 - Jan 2026
Magento 2 · Laravel · Shopify · PrestaShop · Remote
▸ Led Magento -> Shopify migrations for 3 mid-market clients (catalogs 30k–120k SKUs): built a Laravel ETL pipeline with chunked job
batches, idempotent retries, 301 redirect mapping, and metafield transformation; zero organic-traffic loss measured 90 days post-
launch.
▸ Integrated Shopify and GitHub MCP servers with Claude Code and applied custom Claude Skills for migration playbooks - reduced
data-mapping investigation time during migrations from days to hours.
▸ Designed a Laravel HTTP middleware between Shopify Storefront and a legacy ERP, processing ~250k webhook events/day via Redis
queues with HMAC signature validation, exponential backoff, dead-letter queues, and <500 ms p95 latency.
▸ Profiled and optimized the Magento 2 hot path (Redis tagged FPC, Varnish ESI with edge-side cookies, OPcache preload, MySQL
composite-index rewrites, EXPLAIN plan analysis) - cut category-page TTFB by 38% and reduced server cost by 22%.
▸ Developed PrestaShop 8 modules on Symfony service container with CQRS handlers, Doctrine entities, and event-subscribed hooks for
B2B pricing logic.
▸ Introduced AI-augmented PR review (Claude Code + repo-scoped prompts) - surfaced 30%+ more correctness, race-condition, and
security issues vs. human-only baseline.
▸ Mentored 2 mid-level developers on Magento DI, service contracts, plugin/observer patterns, and effective day-to-day use of Claude
Code.

Fullstack Magento Developer · IT SmartFlex (Vodafone) May 2023 - Aug 2024
Magento 2 · GraphQL · Laravel · Remote
▸ Maintained and extended Vodafone's high-traffic Magento commerce platform (peak load ~5k RPS during promo campaigns) with feature
flags and blue-green deployments.
▸ Designed REST resources and GraphQL schemas with DataLoader batching, persisted queries, and field-level authorization for native
mobile apps and partner integrations; reduced average response payload by 45%.
▸ Built a tagged Redis cache layer with explicit invalidation, Varnish ESI for personalized fragments, and refactored hot-path SQL via
covering indexes - improved checkout API latency by 35%.
▸ Hardened auth and access-control flows (OAuth2 PKCE, JWT with key rotation, RBAC, HMAC request signing); passed external pentest
with zero criticals.
▸ Active in Agile ceremonies - sprint planning, code reviews, production deployment rotations.
Fullstack Magento Developer · ATWIX Sep 2021 - Nov 2022
Magento 1 -> 2 Migrations · Performance · Remote
▸ Led a full Magento 1 -> Magento 2 migration for an enterprise client (~80k SKUs, 1.2M historical orders): incremental Data Migration
Tool runs, custom module refactor to declarative schema, theme rebuild on Luma + UI components, extension compatibility audit.
▸ Profiled production bottlenecks (Blackfire, New Relic) and rewrote indexers + product-collection joins - reduced indexer run time from 4 h
to 35 min.
▸ Built a zero-downtime deploy / rollback playbook (atomic symlink swap, pre-warmed FPM pools, DB migration gating) minimizing release
windows to <2 min.

Fullstack PHP Developer (Contract) · InfoModus Jan 2020 - Sep 2023
Magento 2 · Laravel · Microservices · Remote · Concurrent with ATWIX / IT SmartFlex contracts
▸ Designed and shipped Magento 2 modules and Laravel microservices for 8+ SMB e-commerce clients (catalogs 5k–40k SKUs)
following OOP, SOLID, and DDD principles.
▸ Integrated payment gateways (Stripe, Adyen, regional UA/EU providers) and shipping carriers via REST/SOAP with webhook signature
verification - 99.9% successful settlement rate across deployments.
▸ Built a Laravel service layer extending Magento for pricing, loyalty, and subscription flows with idempotent queue workers, optimistic
locking, and Saga-style compensation handlers.
▸ Database tuning - composite indexes, query plan analysis, denormalized read models, and partitioned tables; reduced report query times
from minutes to sub-second.
▸ Refactored two legacy codebases for testability - extracted services from God objects, raised PHPUnit coverage from ~10% to 60%+,
and enabled safe weekly releases.
▸ Applied OWASP best practices (input validation, parameterized queries, CSRF tokens, secure session handling, RBAC); maintained
CI/CD pipelines and Docker dev environments.