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Fiverr Pro
English
$
USD
I will build a dotnet rest API and integrate stripe CRM erp or any third party API
Oleksandr K
About this gig
Need systems that talk to each other without manual work? I build REST APIs and integrations in .NET.
What I do:
- REST APIs with ASP.NET Core: clean, documented, tested
- Stripe: payments, subscriptions, invoices, Connect payouts, webhooks
- CRM and ERP integrations: sync customers, orders, stock
- Third-party APIs: shipping, accounting, Microsoft Graph, Google
- Webhooks with retries, logs and alerts
What you get:
- Swagger or OpenAPI docs
- Auth with JWT or OAuth
- Unit and integration tests
- Logging, so problems are easy to find
- Source code in your repository
About me: Senior .NET developer with 6 years of commercial experience in APIs, integrations and business apps.
Message me before ordering with the systems you want to connect, and I will reply with a short plan.
Get to know Oleksandr K
Oleksandr K
Senior Blazor and Azure Developer, AI and API Integrations
- FromUkraine
- Member sinceAug 2024
- Avg. response time1 hour
Languages
English, Ukrainian, Russian
I'm Oleksandr, a Senior .NET developer with 6 years of commercial experience.
What I build:
🚀 Blazor and ASP.NET Core web apps: CRM, ERP, portals, SaaS
🤖 AI features: Azure OpenAI, RAG chatbots, natural-language search
🔌 REST APIs and integrations: Stripe, CRMs, ERPs, webhooks
🔄 WinForms and WPF to Blazor migrations
I use AI to move faster, but architecture, code review, tests and security stay in my hands.
Clear updates, clean code, on time. Message me before ordering and I'll reply with a short plan.
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Other Software Development Services I Offer
FAQ
Can you set up Stripe subscriptions?
Yes. Payments, subscriptions, invoices, customer portal and webhooks. Also Stripe Connect for marketplaces.
Which systems can you integrate?
Any system with an API: CRMs, ERPs, accounting, shipping, Microsoft 365, Google and more.
Do you write documentation?
Yes. Every API comes with Swagger docs and short notes on setup and deployment.
What if the API changes?
I add logging and alerts, so failures are visible right away and easy to fix.
