Custom API integrations that connect your systems.

I build secure API integrations, webhooks and middleware for workflows that need more control than a native app connector provides.

Discuss a workflow Services

Data passing through connected processing and validation modules

Designed for real data, failure cases and clear handover.

ProfileTop Rated on Upwork

Experience10+ years in development

LocationFrankfurt am Main

An API connection is more than one successful request.

Reliable integrations handle authentication, pagination, rate limits, schema changes, retries and partial failures. I design for those conditions from the beginning instead of treating them as surprises after launch.

What you receive

01REST API and webhook integrations

02Authentication and secure credential handling

03Data transformation, validation and reconciliation

04Middleware, custom endpoints and technical documentation

Where this work fits

A real business process automated across connected systems

Custom SaaS connections

Connect specialist platforms that do not have a useful native integration.

Commerce data flows

Synchronize products, orders, inventory, fulfilment and accounting records.

Legacy modernization

Place a controlled API layer between older systems and modern workflow tools.

From idea to dependable operation

A clear delivery path exposes decisions early and reduces risk before launch.

Understand

Map the process, systems, data and exceptions with the people involved.

Design

Choose the smallest reliable architecture and define ownership.

Build

Implement with realistic data, integrations and deliberate safeguards.

Hand over

Launch, document and give your team control of the workflow.

Technology chosen for the process

Not every problem needs the same tool. The architecture follows complexity, operations and your team.

n8nMake.comOpenAIClaudeREST APIsPHPLaravelPythonSQL

Common questions

Which technologies do you use?

My core stack includes PHP, Laravel, Symfony, JavaScript, Python, SQL, n8n and Make.com.

Can you work from API documentation?

Yes. I can assess the API, test its behavior and document any limitations before implementation.

How do you prevent duplicate data?

I use stable identifiers, idempotent operations, validation and reconciliation based on the capabilities of each system.

Which process is costing your team time?

Share the manual steps and connected systems. I will respond with an honest view of the approach and scope.

Discuss a workflow