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US-Based Principal Engineer | Zero Outsourcing | 25+ Years in the Trenches I provide the technical certainty that only comes from longevity. With over 100 projects completed on Upwork and experience dating back to the earliest days of the web, I build robust backend architecture that works the first time. I Make Systems Talk to Each Other — HubSpot, Jobber, WooCommerce, Mailchimp, Salesforce, FieldAware, Workyard, and more. If your CRM, website, or field-service tools aren't syncing the way they should, that's exactly the problem I solve. Recent Work: • HubSpot & Jobber Sync — a custom Python listener and PHP-based integration automating real-time client sync (Create/Update) and job lifecycle automation via high-performance webhooks, built when Zapier and native integrations weren't cutting it. • Custom WordPress Booking Plugin — full Jobber GraphQL API integration for a service-industry client, including a self-service cancel/reschedule flow, taken from early development through staging acceptance. • Field Service Software Integration — built in Airtable with TypeScript automations, connecting two different field-service management platforms (FieldAware and Workyard) so job and crew data flow between them automatically • Large-Scale Data Pipeline — a Python/PHP deduplication and normalization pipeline for a veteran employment nonprofit, processing 113 files and roughly 79,600 records. • Commercial Product Development — authored and released a WooCommerce/Authorize.net payment gateway plugin (CIM vaulting, auth-only checkout with manual capture, subscription billing, debug logging) with LemonSqueezy license management, plus a Python Gmail API bulk mailer tool. Core Expertise: • Python & FastAPI — modern, asynchronous, strictly typed APIs • API Integration & ETL — REST, GraphQL, and legacy SOAP services • PHP & Backend Systems — custom architecture, Laravel, and database optimization • Data Architecture — custom SQL design and complex JSON transformations Why Work With Me: You are hiring a Subject Matter Expert, not a junior developer. I do not outsource, I do not subcontract, and I do not require hand-holding. I translate business requirements into production-ready code that is documented and resilient.

I’m a Senior Full-Stack Web Developer with 10+ years of professional experience designing, developing, improving, and maintaining web applications, APIs, databases, and custom business solutions. I specialize in taking projects from requirements to production, as well as stepping into existing applications to troubleshoot problems, improve performance, modernize legacy code, and build new functionality. My experience includes: • PHP Development — Core PHP, Laravel, CodeIgniter, REST APIs, backend services, integrations, and legacy application modernization • Modern Web Development — JavaScript, TypeScript, React, Next.js, Node.js/NestJS, jQuery, AJAX, HTML, CSS, and Bootstrap • Database Development & Optimization — MySQL, MariaDB, PostgreSQL, MongoDB, database architecture, complex queries, migrations, indexing, and performance optimization • API & System Integrations — REST APIs, third-party services, authentication, webhooks, payment systems, and data synchronization • Data Processing & Automation — CSV, XML, JSON and other structured data, imports/exports, transformations, scheduled jobs, cron jobs, shell scripts, and automated workflows • Web Scraping & Data Extraction — Custom scraping solutions, cURL, automated data collection, parsing, transformation, and processing • Application Architecture & Infrastructure — Docker, Redis, background jobs, caching, deployment, scalability, and performance optimization I’m comfortable working on both new and existing systems—from fixing a specific issue or building an integration to architecting and developing a complete web application. I focus on clean, maintainable solutions, clear communication, and understanding the business problem behind the technical requirements.

I've been building websites and software professionally for years. A lot of my work has been custom websites and web applications, and I've also spent a lot of time working with Wordpress. I've built sites from scratch, taken over existing ones, written custom plugins, handled migrations, worked with APIs and databases, and fixed plenty of things that were already broken when I got there. On the Wordpress side, I've worked with custom themes and plugins, Elementor, Gutenberg, WooCommerce, ACF, multisite, forms, hosting, DNS, email delivery, and site migrations. I also do custom application development. I've worked with C#, .NET, Perl, PHP, JavaScript, PostgreSQL, MySQL, SQL Server, Linux, APIs, automation, document processing, authentication, and internal business systems.

Bachelor of Engineering (B.Eng.) | Yuriy Fedkovych Chernivtsi National University, Ukraine I’m a .NET developer specializing in building reliable, production‑ready systems for e‑commerce, logistics, and workflow automation. I focus on backend engineering, API integrations, and deterministic data pipelines that keep operations stable and predictable. I build Windows services, DevExpress‑based desktop applications, API integrations, and SQL‑driven ingestion engines using C#, .NET, and SQL Server. My work includes deep integrations with Amazon SP‑API, Amazon Ads‑API, and other retail platform APIs, enabling automated workflows, real‑time data synchronization, and operational visibility across systems. I design systems that reduce manual work, improve operational reliability, and ensure data flows correctly between platforms. My approach is practical, engineering‑driven, and focused on long‑term maintainability — building solutions that behave consistently in real production environments.