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SERHII ROHACHOV

YOUR GO-TO WEB DEVELOPMENT & DIGITAL BRANDING PARTNER

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Senior Full Stack Engineer with 10+ years of experience in WordPress, custom web applications, and scalable cloud-based platforms. Expert in building high-performance, secure, and SEO-optimized digital solutions for businesses across industries — from news portals and e-commerce platforms to enterprise-grade applications.

01

Expertise

From Vision to Execution

I act not only as a developer but as a technical partner, shaping long-term product and infrastructure strategy. My experience covers building teams, defining architectures, and aligning technology with business goals.

CTO-Level Skills:

  • Designing digital transformation roadmaps.
  • Leading cross-functional teams (dev, design, DevOps, QA).
  • Implementing Agile/Scrum methodologies for delivery at scale.
  • Translating complex technical solutions into business value for stakeholders.
  • Vendor and technology stack selection for enterprise systems.

Code With Architecture in Mind

I bridge back-end logic, APIs, and front-end interfaces into seamless ecosystems.

Languages & Tools:

  • Back-End: PHP (OOP, modern frameworks), Node.js, Python, SQL/MySQL/PostgreSQL.
  • Front-End: JavaScript (ES6+), TypeScript, React.js, jQuery, HTML5, CSS3, SCSS, Tailwind CSS, Bootstrap.
  • APIs: REST, GraphQL, Webhooks.
  • Automation & Scripting: Bash, Python.

Commerce as a System, Not Just a Store

I design e-commerce ecosystems where payment, logistics, CRM, and marketing tools are integrated into one seamless engine.

Key Competencies:

  • Multi-vendor marketplaces.
  • Subscription and membership platforms.
  • Advanced checkout flows with payment gateways (Stripe, PayPal, Razorpay, Klarna, Mollie).
  • ERP, CRM, and marketing automation integration (HubSpot, Salesforce, Klaviyo).

Enterprise-Grade CMS & Commerce

With a decade of experience, I have transformed WordPress and Shopify into enterprise-grade platforms capable of supporting millions of users, complex business workflows, and global-scale operations. My focus is on building secure, scalable, and high-performing ecosystems for content and commerce.

Strong Skills:

  • WordPress VIP development: custom MU-plugins, optimized themes, strict coding standards.
  • Shopify Plus engineering: private apps, advanced Liquid customization, API-driven integrations.
  • Multisite, multi-currency, multilingual platforms with complex tax & logistics rules.
  • Advanced WooCommerce setups with subscriptions, payments, ERP/CRM integrations.
  • API-first architecture using REST & GraphQL.
  • Zero-downtime migrations and enterprise re-platforming projects.

WordPress VIP:

  • Enterprise-grade hosting and infrastructure for global-scale platforms.
  • Optimized workflows with advanced caching, CDN, and CI/CD integration.
  • Custom plugin development for VIP environments with strict coding standards.
  • Security-first architecture with vulnerability audits, monitoring, and compliance.
  • Migration of high-traffic news portals and media platforms to VIP infrastructure.

Shopify Plus:

  • Building and scaling enterprise e-commerce ecosystems on Shopify Plus.
  • Custom Liquid themes, private apps, and API-driven integrations.
  • Multi-currency, multi-region setups with complex tax and shipping rules.
  • Headless Shopify with React/Next.js frontends for performance and flexibility.
  • Deep integrations with ERP, CRM, and marketing automation (Salesforce, HubSpot, Klaviyo).
  • Advanced commerce features: subscription systems, wholesale portals, omnichannel sales.

Automated, Scalable, Reliable

I specialize in architecting cloud-native, DevOps-driven environments that empower fast iteration, continuous delivery, and global scalability. My work ensures that infrastructures are automated, observable, and resilient under heavy load.

STRONG SKILLS:

  • CI/CD automation with GitHub Actions, GitLab CI, Bitbucket Pipelines.
  • Docker & Kubernetes orchestration with Helm for multi-node clusters.
  • Infrastructure as Code using Terraform & Ansible.
  • Multi-cloud architectures across AWS, GCP, and Azure.
  • Monitoring & observability with ELK, Prometheus, Grafana, New Relic.
  • Disaster recovery and failover strategies with multi-region backups.

Cloud Platforms:

  • AWS: EC2, S3, RDS, CloudFront, ECS, Lambda.
  • Google Cloud: App Engine, Cloud SQL, Cloud Storage.
  • Azure: VMs, Functions, Blob Storage.

Automation & Monitoring:

  • Infrastructure as Code with Terraform/Ansible.
  • CI/CD pipelines integrated with test automation.
  • Proactive monitoring, logging, and alerting (ELK, Grafana, New Relic).
  • Scaling strategies with load balancing and auto-scaling groups.

Building Trust Into Systems

Security is not an add-on, it’s part of the architecture. I implement proactive measures to ensure compliance, resilience, and trust.

Security Skills:

  • WordPress & Shopify hardening (PCI DSS, GDPR, OWASP compliance).
  • Cloudflare WAF, Sucuri, firewalls, intrusion detection systems.
  • Secure authentication (JWT, OAuth2, 2FA, SSO).
  • Penetration testing & vulnerability scans.
  • Disaster recovery planning and incident response protocols.

User Experience as a Growth Driver

A platform succeeds only if people enjoy using it. I combine engineering with user-centered design to create frictionless experiences.

Key Competencies:

  • UX/UI prototyping with Figma, Sketch, Adobe XD.
  • Conversion-centered design for e-commerce and SaaS.
  • Accessibility-first interfaces (WCAG compliance).
  • Brand identity alignment with modern UI systems.

Intelligent Systems for Modern Business

I build AI-driven automation systems that replace repetitive manual tasks with intelligent, self-learning workflows. My goal is to streamline operations, reduce costs, and let teams focus on high-value creative or strategic work.

FOCUS ON AI-POWERED AUTOMATION:

  • Process Automation: Integrating AI agents to handle routine workflows — from customer onboarding and support tickets to HR approvals and finance reporting.
  • Document & Data Automation: AI systems for automatic document parsing, classification, and extraction of structured data from invoices, contracts, and reports.
  • Workflow Orchestration: Connecting AI models with APIs and business tools (CRM, ERP, CMS) to create end-to-end automated pipelines.
  • Decision Automation: Predictive models that automate pricing, inventory planning, fraud detection, and lead scoring.
  • Content Operations: Automating large-scale content creation, tagging, translation, and publishing flows.

STRONG SKILLS IN AI AUTOMATION:

  • AI frameworks: OpenAI GPT, LangChain, Hugging Face, custom fine-tuning.
  • Automation Platforms: Building custom AI integrations with Zapier, Make, n8n, Airflow.
  • Agent Systems: Designing autonomous AI agents capable of reasoning, task execution, and collaboration.
  • Data Workflows: Automating data cleaning, enrichment, and analytics pipelines with Python (pandas, scikit-learn basics).
  • Multimodal AI: Combining text, image, and structured data for advanced automation scenarios.

AI IN E-COMMERCE AUTOMATION:

  • Personalized Recommendations at Scale: Automatically adjusting catalogs and offers for every customer.
  • Dynamic Pricing Engines: AI that continuously recalculates prices based on demand, seasonality, and competitor activity.
  • Automated Customer Support: AI agents that handle FAQs, complaints, returns, and escalations 24/7.
  • Marketing Automation: AI-driven campaigns with personalized emails, product suggestions, and targeted ad creatives.

AI IN MEDIA & PUBLISHING AUTOMATION:

  • Smart Editorial Pipelines: Automatic tagging, categorization, and SEO metadata generation.
  • Content Summarization & Translation: Real-time automated workflows for multilingual publishing.
  • Reader Personalization: Recommendation engines that adapt feeds to each user’s interests.
  • Content Lifecycle Automation: From generation (AI copy, images, video snippets) to publishing and performance monitoring.

02

Experience

2023 – 2025

Whales Marketing
Senior Full Stack Engineer

Led custom WordPress development, DevOps infrastructure, and growth-focused digital products for a global marketing agency.

2022 – 2023

MRM
Senior Developer

Delivered fast-paced projects for top agencies, focusing on custom functionality, performance, and cross-team collaboration.

2021 – 2022

Isadora Agency
Senior Developer

Delivered fast-paced projects for top agencies, focusing on custom functionality, performance, and cross-team collaboration.

2019 – 2023

Zaborona Media
Full Stack Developer

Developed and optimized a major news platform with secure APIs, responsive UI, and performance-driven architecture.

2019 – 2021

Innohub Group
Senior Full Stack Engineer

Built scalable business platforms with full-stack solutions and cloud deployment across multiple industries.

2019 – 2021

Data Strategy Lab
Full Stack Engineer

Created data-driven dashboards and backend systems for enterprise-level analytics and decision-making.

2015 – 2019

Innovizo
Full Stack Developer

Designed and deployed modern web applications with emphasis on speed, security, and UX.

03

Cases

E-Commerce / Online Stores

Websites aimed at selling products or services:

News / Media Portals

News websites or independent media outlets:

Personal Brand / Portfolio

Websites dedicated to personal brands, professionals, or artists:

Corporate / SaaS / Tech / Business

Websites for companies, services, agencies, or business platforms:

Available for Work