You will get a custom PHP web application
Top Rated
Project details
I develop secure, scalable, and high-performance PHP web applications tailored to your business logic. Whether you need a complete system from scratch or to extend an existing one, I’ll ensure clean architecture, optimized queries, and smooth integration with APIs or third-party services.
Programming Languages
PHP, HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$250
|
Standard
$450
|
Advanced
$2,000
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 21 days |
Number of Revisions | 0 | 0 | 0 |
Number of Pages | 3 | 10 | |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | |||
Source Code |
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About Roman
AI Automation Expert| Claude AI | Voice Agent| n8n Automation
100%
Job Success
Lviv, Ukraine - 3:06 pm local time
Top Rated | 100% Job Success | 7+ years in backend engineering | 60+ delivered projects across SaaS, CRM, payments, and automation-heavy systems.
I specialize in building production-ready automation platforms, AI-powered workflows, and backend systems that reduce manual work, improve operations, and scale reliably.
Unlike pure automation freelancers, I bring strong backend engineering experience — which means I don’t just connect tools, I build stable systems behind them.
Why Clients Work With Me
I combine backend development + workflow automation + AI integrations to build solutions that survive production.
I work with startups, SaaS businesses, agencies, and operational teams that need:
AI-powered workflow automation
CRM & business process automation
Payment & subscription systems
SaaS backend development
API integrations & webhooks
Lead handling & internal tools
AI agents / voice AI / document automation
I focus on:
scalability
clean architecture
secure integrations
reliability
automation that reduces real operational cost
Core Expertise
🔧 AI Automation / n8n / Workflow Systems
I design automation pipelines that replace manual business processes.
Projects include:
AI Lead Qualification & CRM Routing
lead verification, enrichment, scoring, routing
CRM → Slack → Email automation hubs
notifications, alerts, approval flows
Order & fulfillment automation
Shopify / WooCommerce workflows
Webhook-based integration platforms
API-first automation layers
Subscription & billing workflows
retries, failed payments, alerts, churn prevention
Internal ops automations
status-based triggers, task flows, reporting
🤖 AI Agents / Voice AI / LLM Integrations
I build AI-powered tools that connect directly into real workflows.
Experience with:
AI customer support bots
FAQ assistants
lead qualification bots
AI email reply assistants
voice AI integrations
CRM-connected assistants
AI document parsing workflows
Tech & integrations:
OpenAI API
VAPI
11Labs
LLM workflows
retrieval-based assistants
structured-output pipelines
🧱 Backend Engineering / SaaS Development
My strongest technical foundation is backend systems.
7+ years working with PHP ecosystems, mainly building business/admin platforms.
Experience includes:
Laravel applications
CodeIgniter systems
multi-tenant SaaS admin panels
RBAC / permissions
API development
auth & access control
queue-based workflows
file-processing services
business logic engines
workflow engines
cron-based processing
💳 Stripe / Payments / Finance Automation
Strong niche expertise in payment-heavy systems.
I’ve worked on:
Stripe subscription systems
Webhooks & event handling
failed-payment recovery
dunning workflows
fraud-safe checkout flows
payment validation layers
invoice/accounting exports
DATEV-style exports
recurring billing logic
This is especially useful for SaaS and subscription businesses.
⚙️ Integrations & Infrastructure
I build stable integrations, not fragile no-code chains.
Experience with:
REST APIs
OAuth2
Webhooks
JSON transformations
CRM integrations
third-party platforms
Twilio-based flows
Slack / Notion / Airtable
Google Workspace APIs
Supabase / PostgreSQL
Docker-based deployments
reverse proxy / SSL
server setup
queue scaling
maintenance & reliability
What I Build
AI workflow automation systems
SaaS backends
CRM automation pipelines
payment & subscription logic
admin panels
internal tools
voice AI workflows
AI-integrated customer support systems
webhook orchestration layers
secure file-processing pipelines
lead generation & enrichment systems
business process automation platforms
What Clients Get
✔ Backend-first automation engineering
✔ Production-ready systems
✔ Clean architecture
✔ Scalable integrations
✔ Security-focused implementation
✔ Fast communication
✔ Long-term maintainability
✔ Strong business logic understanding
✔ Reliable post-launch support
Best Fit Clients
I work best with:
SaaS businesses
subscription platforms
startups
agencies
CRM-heavy businesses
payment-heavy products
operational teams
businesses replacing manual workflows with automation
Technical Stack
Backend: PHP, Laravel, CodeIgniter, Node.js
Automation: n8n, Make, Webhooks, API orchestration
AI: OpenAI API, VAPI, 11Labs, LLM integrations, AI workflows
Payments: Stripe, subscriptions, invoices, retries
Database: MySQL, PostgreSQL, Supabase
Infra: Docker, SSL, reverse proxy, server deployments
Integrations: Slack, Google Workspace, CRM systems, Twilio
Keywords
n8n Developer, AI Automation Engineer, Backend Engineer, Laravel Developer, Stripe Integration Expert, Workflow Automation Developer, API Integration Specialist, SaaS Backend Developer, CRM Automation, Webhook Development, AI Agent Development, VAPI Integration, OpenAI API, LLM Workflows, Subscription Billing Automation, Payment Automation, Business Process Automation
Steps for completing your project
After purchasing the project, send requirements so Roman can start the project.
Delivery time starts when Roman receives requirements from you.
Roman works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & Planning
We’ll discuss your project idea, features, and technical requirements. I’ll help you define the best structure and tools for your web app.
UI/UX & Architecture Setup
If you already have a design, I’ll prepare the front-end integration. Otherwise, I’ll create a clean and responsive interface template.