You will get a reliable API or webhook integration fix with staging proof
Project details
You get one focused API or webhook repair for a real production or staging problem. I reproduce the failing request, identify the root cause, patch the integration, add retry/idempotency/logging safeguards where appropriate, verify the fix in sandbox or staging, and hand off concise notes your team can maintain. Best for payments, chat, CRM/SaaS sync, email/SMS, auth, or AI API flows. If the issue is larger than one fixed-scope repair, I’ll define the smallest safe scope before implementation.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$450
|
Standard
$950
|
Advanced
$1,800
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 10 days |
Number of Revisions | 1 | 1 | 2 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Jaykang
Software Engineer | Backend, API Integrations & AI Automation
Seoul, South Korea - 10:26 am local time
Best fit:
• Broken or half-built API/webhook integrations that need retries, idempotency, logging, and clear failure handling
• Backend workflows: auth, admin tools, queues, payments, chat, email/SMS, CRM/SaaS data sync
• AI product features: OpenAI/Anthropic/Google APIs, structured outputs, SSE streaming UX, persisted history, reviewable prompts
• AWS delivery: ECS, S3, RDS/Aurora, SQS, CloudWatch, Terraform, CI/CD, smoke tests
Proof on my profile:
• Production repair platform: Kotlin/Spring, payments, chat, S3 uploads, notifications, AWS ops
• Scalable workflow automation: high-volume reward pipelines with Redis/DB consistency and operational handoff
• AI decision simulator: Next.js, queued generation, SSE streaming, PostgreSQL, auth/history flows
My working style: reproduce the issue, define the smallest safe milestone, ship with staging proof, and leave concise handoff notes. If you need a developer who can bridge product, backend reliability, and AI/API integrations, I can help.
Steps for completing your project
After purchasing the project, send requirements so Jaykang can start the project.
Delivery time starts when Jaykang receives requirements from you.
Jaykang works on your project following the steps below.
Revisions may occur after the delivery date.
Scope and reproduce
Review the failing request, logs, payload, and access scope; confirm the smallest safe fix.
Patch the integration
Update code or configuration and add retries, idempotency, logging, or validation where appropriate.