Slow pages, errors, breaches, migrations — I take on the cases others walk away from. OpenCart, WordPress, OkayCMS and servers. First reply within 24 hours.
Real reviews from Freelancehunt, left after completed Safe deals. None of this text was written by me.
Yevhen Fostenko ✓
Freelancehunt profile Data as of 05.10.2026
Все сподобалося, дякую. Швидко та зрозуміло
Чітко, професійно а головне швидко відновив роботу сайту. Хороший фахівець
не вперше звертаюсь
миттєва реакція та професійна робота
Рекомендую до співпраці!
Качественно, оперативно и быстро создан плагин для решение проблемы которая долгие годы мучала нас !
The problems store owners bring to me most often. Every one of them is solvable.
I make it 2–10× faster without redesigning anything. A fast store means more orders and better Google rankings.
I find the cause and bring the store back. These jobs jump the queue — every hour counts.
I remove the malicious scripts, close the vulnerability and set up protection against attacks and bots — so it does not happen again.
I work through someone else’s code: new features, ERP, CRM and payment integrations — carefully and with a warranty.
I move the store to a new server with no downtime and nothing lost: domains, mail, certificates — all of it.
I check the technical side: speed, errors, visibility in Google. That is often exactly where the ad budget leaks.
I work with OpenCart / ocStore, WordPress / WooCommerce, OkayCMS and Linux servers — SEO services included.
A simple, transparent process. At every step you know what is happening and what it costs.
I go through the site and find the real cause. You get a plain list: what is wrong and what fixing it costs.
Together we decide what gets done now and what can wait. Price and deadline are known before the work starts.
A backup first. Then careful work: the store keeps taking orders while I am in it.
Before and after, side by side. For thirty days after delivery I fix any issues at my own cost.
What changes after the work. Where a real measurement exists, the numbers are shown.
OpenCart / ocStore
One module fired 1,063 identical database queries on every page, and a setting recounted products across 2,500 categories. Fixed the module and the setting — the design and page content stayed the same.
before after
WordPress / WooCommerce
OkayCMS
DevOps & Linux
PHP ran via CGI, so the bytecode cache never survived a single request — Laravel recompiled about 2,000 files every time. Switched on the OPcache disk cache.
before after
SEO Optimization
Rebuilt the theme: a light design system instead of full Bootstrap and layers of patches, fonts limited to the weights in use. Measured on the same pages before and after.
before after
Three standard formats. Anything unusual we discuss individually.
Fixed price. A clear report: what is wrong, what to fix first and what it will cost. What happens next is up to you.
The default format for ongoing improvements. Detailed time reporting. Minimum unit — 15 minutes.
Site down, an attack or a critical failure — I start immediately. I bring the store back and explain what happened.
The questions clients ask most often before we start.
Yes. I work with every version of OpenCart and ocStore, including very old ones. I can maintain the site as it is, fix the critical issues, or move it to a current version step by step without losing data.
Yes, that is one of my core areas. I set up traffic filtering and automatic blocking so the site stays reachable for real customers. Critical cases are taken on immediately.
A fixed-price audit starts at $150 and gives you a full report with a prioritised task list. The work itself is billed hourly ($40–60/hour) or as a package for a defined scope. Incident response has its own rate, agreed up front.
Both. For clearly scoped work (a module, a migration, an audit) — a fixed price. For open-ended or evolving work — hourly with time reporting. Payment via Freelancehunt Safe, SWIFT, IBAN or USDT — your choice.
Message @id13dev on Telegram — these go to the front of the queue. First I get the site running again, then I find the cause so it does not repeat. A backup is taken before anything else.
Always. A full file backup plus a database dump before touching production. Backups are kept at least 14 days on separate storage. For high-risk changes — a VM snapshot as well, where available.
Yes. Code carries a 30-day warranty: bugs within the agreed scope are fixed free of charge. Server configurations come with 14 days of support. Monthly retainers are available if you need more.
Describe the task in your own words — within 24 hours you get a plan and an estimate.
id13dev (id13.dev) is not just a contractor but a technical partner: core-level OpenCart and ocStore, scaling WooCommerce for catalogues of 50,000+ products, OkayCMS on a mid-range VPS, and DevOps maintenance of dedicated servers with layered protection.
The problems I solve daily: slow TTFB on category and search pages, 502/504 errors Nginx under peak load, MySQL spiking past 200% CPU, full table scans on large tables, plugin conflicts in WordPress, poorly written OCMOD in OpenCart, memory leaks in PHP workers. The approach is always to find the root cause in logs and metrics rather than stack workarounds on top of workarounds.
A store under attack loses money every minute. I work with Cloudflare WAF Custom Rules, rate limiting, Bot Fight Mode, mTLS for the admin panel and expression rules to filter botnets. At the server level — fail2ban, nftables, ModSecurity, CrowdSec and conntrack tuning to absorb L3/L4 attacks. For business-critical setups — full hardening with a regular pentest checklist.
Setup of VPS and dedicated servers on Linux (Ubuntu, Debian, AlmaLinux): a LEMP/LAMP stack from scratch, Nginx + PHP-FPM tuning (pm.max_children, opcache, JIT), MySQL/MariaDB with a properly sized innodb_buffer_pool_size, slow log and replication. Redis or Memcached as the cache layer. Netdata, Zabbix, UptimeRobot plus custom Telegram alerts for monitoring. Automation through Git, Docker and CI/CD pipelines.
The typical client is an owner or technical lead of an e-commerce business facing "it used to work, now it drags", or preparing for a seasonal peak (Black Friday, the pre-holiday rush), or already under DDoS with nowhere to turn. Also agencies and developers who would rather hand the technical side (server optimization, security audits, OpenCart core work) to a senior specialist than spend their own capacity on it.
The goal is not merely to "make it work" but to build a system that keeps working without constant intervention. Monitoring, automated backups, alerts on the metrics that matter, documented changes, configuration versioned in Git. Every line of code goes through Git review, which guarantees backward compatibility and a fast rollback if something unexpected happens. id13dev specialises in high-load development, PHP performance work, MySQL index design, security audits and DevOps for e-commerce.
