You will get seamless CRM/ERP/API integration by a Full Stack Developer
Top Rated
Project details
I've built and maintained production integrations connecting CRMs, ERPs, and payment systems for real businesses. Examples: automating lead distribution and ticket escalation between Pipedrive, WhatsApp, and Freshdesk; syncing Odoo CRM with ERP and SharePoint exports; wiring payment automation (Stripe/Mollie) directly into booking systems. I build integrations that survive real traffic: webhook signature verification, retry logic with backoff, and dead-letter queues for anything that fails, so a dropped webhook doesn't mean lost data.
Programming Languages
PHP, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$450
|
Standard
$900
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 4 days | 9 days | 14 days |
Number of Revisions | 1 | Unlimited | Unlimited |
Number of Pages | 1 | 5 | 10 |
Design Customization | - | ||
Content Upload | - | - | |
Responsive Design | |||
Source Code | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$400 - $1,000Frequently asked questions
78 reviews
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AF
Amir F.
Aug 11, 2026
Full stack developer help for AI sourcing tool
Amazing job. Very professional work!
SM
Stephen M.
Feb 19, 2024
Wordpress Theme and Plugin Development from Figma
Really pleasant to deal with, delivered high quality work on time, and very responsive to feedback and changes. Looking forward to working with you again in the future.
NM
Nick M.
Feb 15, 2024
HTML to WooCommerce development
SS
Soheil S.
Jan 2, 2024
React frontend PDF Reader Enhancement
SE
Scott E.
Apr 11, 2023
Web Dev
Anton and his team are deeply experienced, professional, responsive, and excellent project managers. I will hire them again when the next big digital project surfaces.
About Anton
Full Stack Developer | Backend Developer | React | Node.js | PHP
100%
Job Success
Sofiyivska Borschagivka, Ukraine - 9:02 pm local time
💳 Stripe · Adyen · Mollie · Payone
⚙️ Laravel/Vue/Node/Next.js/Express.js/React/React Native/Supabase/Postgress/MySql and a lot more
100% JSS · $300K+ earned over 6 years
My work covers the full spectrum of Full Stack Developer responsibilities. As a Backend Developer, I architect scalable APIs and database structures using PHP (Laravel), Node.js, and Python. On the frontend, I build with React, Vue, and Angular. This Full Stack Developer versatility extends to React Native for mobile, where I function as a Mobile App Developer, and to custom WordPress solutions, where I serve as a WordPress Developer. Whether it's a Python Full Stack Developer scenario with Django/FastAPI or a .NET Full Stack enterprise environment, I adapt.
⚙️ What I Do Best
Full Stack Developer ownership from architecture to launch and support.
Backend Developer focus on SaaS platforms, booking engines, and internal tools.
Full Stack Developer React Node ecosystems: interactive dashboards and complex workflows.
WordPress Full Stack builds that are fast, secure, and easy for marketing teams to edit.
Mobile App Developer delivery via React Native, fully integrated with custom backends.
Senior Fullstack Developer guidance for integrations: CRMs, ERPs, payment gateways, and custom APIs.
🚀 Real Project Examples
📦 Self-Storage Ecosystem (EU)
As lead Full Stack Developer and Backend Developer, I built a booking tool with ERP and payment automation (Full Stack Developer Laravel stack with Vue). This Full Stack Developer work took online reservations from zero to 170+ monthly and tripled signed contracts.
🎓 EdTech Matching Platform
As Senior Fullstack Developer, I delivered three interconnected applications (Laravel/Vue) with a matching engine and accounting integrations. The Full Stack Developer React Node architecture increased sales by 190% year-over-year while keeping operations lean.
🐾 Social Utility App for Pet Owners
Acting as both Mobile App Developer and Backend Developer, I built a React Native app and Laravel backend with maps, social features, and AI helpers. This Full Stack Developer project seamlessly blended native mobile and web.
📊 SEO Analytics SaaS
In a Python Full Stack Developer role, I designed microservices with FastAPI and Node.js for high-load APIs and React frontends. The Full Stack Developer architecture processes thousands of active users reliably.
🧹 Cleaning Service Group Automation
As a WordPress Developer and Full Stack Developer PHP expert, I built a custom CRM/ERP with scheduling and telephony integrations. The Web Developer and Backend Developer work automated coordination across three brands.
🛠 Tech I Use Daily
Backend: PHP (Laravel, Filament), Node.js, Python
Frontend: React, Vue, Nuxt, Alpine.js
CMS: Custom WordPress Full Stack themes and plugins
Mobile: React Native (I function as a Mobile App Developer)
DB: MySQL, PostgreSQL, Redis
DevOps: AWS, Docker, CI/CD
APIs: Stripe, Mollie, Google API, OpenAI
🤝 How I Work
✅ I own delivery as a Full Stack Developer: architecture, code quality, and deadlines.
✅ I'm transparent about scope and risks as your Backend Developer partner.
✅ I take Full Stake ownership of outcomes, not just outputs.
✅ I can join ongoing projects or build from zero to scale.
✅ I act as a Web Developer and Senior Fullstack Developer who bridges technical execution with business impact.
💡 Why Clients Choose Me as Their Full Stack Developer
Beyond writing clean code, I function as a true Full Stack Developer consultant. I've rescued stalled projects, modernized legacy PHP systems, and transitioned businesses from manual spreadsheets to fully automated WordPress Full Stack portals. As a React Developer at heart, I ensure every interface is intuitive and fast. Whether you need a Mobile App Developer for a companion app or a Backend Developer to untangle complex data flows, I bring Full Stack Developer React Node expertise and a Full Stake mindset to every engagement. My experience across .NET Full Stack environments and as a Python Full Stack Developer ensures I can evaluate the right tool for your specific business challenge, not just the one I know best. I'm comfortable acting as a fractional CTO or a Senior Fullstack Developer embedded with your existing team.
As a Full Stack Developer and Backend Developer, I deliver React, Node.js, PHP, Mobile App Developer results, WordPress Developer sites, Python Full Stack Developer APIs, .NET Full Stack insights, and Full Stake commitment. Senior Fullstack Developer ready.
Steps for completing your project
After purchasing the project, send requirements so Anton can start the project.
Delivery time starts when Anton receives requirements from you.
Anton works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements review
Map out which systems need to talk to each other and what data should flow where.
System/API audit
Check auth methods, rate limits, and data structures on each platform involved.