I will create custom API integration, webhooks, gateway

R
rlapenok
R
rlapenok
Roman Lapenok
create custom API integration, webhooks, gateway
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create custom API integration, webhooks, gateway
Full Screen
create custom API integration, webhooks, gatewaycreate custom API integration, webhooks, gateway

About this gig

Hi,

I am a backend and automation specialist with extensive experience in API development, integration, and workflow automation for web, mobile, and SaaS platforms. I have completed hundreds of real-world API projects, including complex production systems.


What I can help you with:

  • Integrate ANY third-party API (REST, JSON, XML, SOAP)
  • Custom REST API development and fixes
  • WordPress plugins for third-party APIs
  • WooCommerce, Shopify, and Wix APIs
  • Inventory sync from suppliers to eCommerce stores
  • Marketplace automation & competitor repricers
  • CRM & ERP integrations
  • Shipping and logistics APIs
  • Payment gateway integrations
  • Mobile app backend APIs (Android / iOS)
  • Webhook development & integration
  • Scheduled jobs
  • Data sync and migration
  • Dialers, custom bots, and background automation
  • Workflow automation using Zapier, Make.com, n8n
  • AI & OCR APIs (ChatGPT, Claude, ShuftiPro, etc.)


What you get:

  • Clean, scalable, production-ready code
  • Tested endpoints with clear documentation
  • Reliable communication and on-time delivery


Please message me before placing an order to discuss your requirements and choose the right solution.

Consultation is always free.

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Databases

  • Programming language

    • Go

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS
    • Vue.js
    • Htmx

  • Backend framework

    • Django
    • FastAPI
    • Gin
    • Node.js
    • Axum

Get to know Roman Lapenok

Roman Lapenok

Backend Developer

  • FromBelarus
  • Member sinceDec 2024
  • Avg. response time1 hour

  • Languages

    English, Russian
Hi, I'm Roma — a Backend Developer with 3+ years of experience building scalable backend systems and microservice architectures using Go (Golang). I develop fast and reliable REST/gRPC APIs, high-load services, and production-ready backend infrastructure. Experienced with PostgreSQL, Redis, ClickHouse, Kafka, RabbitMQ, Docker, CI/CD, and blockchain integrations. I focus on clean architecture, performance optimization, and maintainable code that scales with business needs.

My Portfolio

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