Peter H.
Senior E-commerce Developer | Magento,Adobe Commerce, Shopify & Drupal
If you are looking for a reliable, senior-level e-commerce engineer who can step into your project, untangle complex technical debt and deliver robust solutions without hand-holding you are in the right place. I am Senior E-commerce Developer with 13+ years of hands-on experience building, scaling and maintaining high-performing online stores. While my core expertise lies in Magento 2 I bring deep cross-platform capability across Shopify, Drupal Commerce, and custom architectures. Whether you need a quick fix for a broken checkout, a smooth platform upgrade or a long-term technical partner to look after your store, I provide clear communication, clean code and commercial focus. Core Expertise & Platforms 1) Magento 2 & Adobe Commerce: architecture, custom module development, performance tuning and complex integrations. Hyvä Themes Development & Speed Optimization -Full Hyvä Theme implementation & customization from design -Core Web Vitals optimization (targeting 90+ mobile & desktop scores) -Advanced caching setups (Varnish, Redis, Full Page Cache) Magento 2 Upgrades & Security Maintenance -Smooth version upgrades (e.g., Magento 2.4.x updates) -Emergency security patching & malware cleanup -Codebase audit, module cleanup, and technical debt removal. -Monthly ongoing store support, monitoring, and proactive maintenance. Integrations & API Development (ERP, CRM, Payment, Logistics) -Custom REST & GraphQL API development for headless or third-party connections. -Integration with major ERP/CRM systems (NetSuite, SAP, Salesforce, Odoo, Zoho) -Custom payment gateway implementation & shipping carrier integrations (FedEx, UPS, DHL) -PIM and Inventory Synchronization (Akeneo, Pimcore, etc.) Custom Module Development & Checkout Customization -Bespoke Magento 2 extension/module creation following Adobe best practices -Custom checkout flows, 1-step checkouts, and custom attributes. -Resolving complex module conflicts and third-party extension debugging. -B2B functionality setup (Quick Order, Company Accounts, Custom Price Books). Data & Platform Migration -Magento 1 to Magento 2 migration (Database, Customer Accounts, Orders, Products). -Migration between Shopify, WooCommerce, BigCommerce, and Magento 2 in both directions -Zero-data-loss database migration and structural redesign 2) Shopify: custom themes, app integrations and storefront optimisation. -Custom Theme Development & Section Creation -Custom App & API Integrations (Node.js / Remix / GraphQL) -Shopify Plus Advanced Customization -Speed Optimization & Technical Cleanup -Seamless Store Migration & Replatforming 3) Drupal: enterprise content-driven e-commerce solutions. 4) Legacy & Maintenance: Magento 1, Mage-OS and WooCommerce support. How I Can Help You -Scale & Optimise: speed up slow-loading stores, fix database bottlenecks, and improve Core Web Vitals to boost your conversion rates. -Upgrades & Security: seamlessly migrate to newer Adobe Commerce versions and apply critical security patches. -Integrations: connect your store smoothly with ERPs, CRMs, payment gateways, and third-party APIs. -Troubleshooting: resolve stubborn checkout errors, payment failures, and module conflicts. -Long-Term Ownership: take full technical ownership of your store, act as an extension of your in-house team, or lead ongoing development. Why Clients Work With Me Communication: offering clear, prompt, and professional communication. Business-minded: I focus not just on writing code, but on how it impacts your user experience, security and revenue. Proactive problem solving: I identify potential risks before they turn into costly downtime. Click "Invite to Job" or drop me a message with a brief overview of your project. Let's discuss how I can help you achieve your goals.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $421
Billed in all: $41,481$41k
$105 in the last 6 months
Across 23 contracts
Earnings, last 30 days
Skill rankings: Top 25% in Drupal
Ranked by MRR among everyone on Upwork with the skill.
- #30Web Development Plugin73 freelancers · 🇬🇧 #1Top 41%🇬🇧#1 of 3
- #38Online Store Customization107 freelancers · 🇬🇧 #3Top 36%🇬🇧#3 of 4
- #74Store Migration139 freelancers · 🇬🇧 #1Top 53%🇬🇧#1 of 2
- #163Migration344 freelancers · 🇬🇧 #2Top 47%🇬🇧#2 of 5
- #256Drupal1,033 freelancers · 🇬🇧 #7Top 25%🇬🇧#7 of 22
- #319Website Performance Optimization669 freelancers · 🇬🇧 #11Top 48%🇬🇧#11 of 16
- #375Magento 21,265 freelancers · 🇬🇧 #4Top 30%🇬🇧#4 of 22
- #408Bug Fix1,157 freelancers · 🇬🇧 #7Top 35%🇬🇧#7 of 25