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I will build custom API integrations and genai features for your saas
Andrei C.
About this gig
Zapier is for amateurs. Your business needs professional engineering.
You need your software to talk to the world, and you need it done securely, reliably, and without monthly subscription fees to third-party connectors.
I do not use drag-and-drop, I write custom, scalable PHP code.
I am a Senior Software Developer with 17+ years of experience. I specialize in building robust API infrastructures and integrating cutting-edge GenAI (LLM) technology into existing SaaS platforms.
I will build for you:
- Custom API Integrations: Sync data between your SaaS and Xero, Salesforce, Stripe, or any REST/SOAP endpoint.
- GenAI + LLM Features: Add "Chat with your Data" (RAG), automated summarization, or AI assistants to your app using OpenAI/Anthropic APIs.
- Middleware Services: Secure intermediaries that sanitize, log, and transform data before it hits your database.
- Legacy Connections: Connect modern apps to old XML/SOAP systems.
My Technical Standard:
- Security: OAuth2, Rate Limiting, and Data Validation.
- Stack: PHP 7/8+ (Symfony/Laravel), Python (if needed for AI), MySQL.
- Documentation: I provide clear API docs (Swagger/OpenAPI) so your team can maintain it.
Contact to discuss more.
Get to know Andrei C.
Andrei C.
Senior PHP Architect 17 Years SaaS Expert Symfony Laravel
- FromRomania
- Member sinceFeb 2019
- Avg. response time1 hour
Languages
English, German, French
Stop guessing with your software. I bring 17+ years of elite software engineering experience to your project.
I am not just a developer; I am a former CTO and Team Lead who has built scalable SaaS solutions for the UK accountancy and Japanese security markets. I specialize in cleaning up messes, optimizing workflows, and building architecture that scales.
My Core Stack: Back-End: PHP 7/8+, Symfony, Laravel, Yii, CodeIgniter. Database: MySQL, PostgreSQL, Doctrine/Eloquent ORM. Integrations: RESTful APIs, SOAP, XML, and GenAI/LLM Integration. DevOps: AWS, Docker, Jenkins, CI/CD pipelines
Other Software Development Services I Offer
FAQ
Do you use Zapier or Make.com?
No. I build custom, standalone code (PHP/Python) that runs on your server. This means you own the code, you have zero monthly subscription fees, and you have no data privacy limits.
Can you integrate with an AI model like GPT-4?
Yes. I can build "RAG" (Retrieval-Augmented Generation) systems that allow an AI to read your specific database or PDFs and answer questions based on your business data.
My system is very old (SOAP/XML). Can you fix it?
Yes. I have over 10 years of experience dealing with legacy SOAP and XML protocols. I can build a modern JSON API wrapper around your legacy system.
Do I need to provide the API Keys?
Yes. For services like OpenAI, Stripe, or Salesforce, you will need to provide the API credentials. I can guide you on how to generate them securely.
