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Fiverr Pro
English
$
USD
I will automate your local businesses like plumbing, hvac, legal
Kumar J
About this gig
Stop Losing Leads to Voicemail. Lets Automate Your Growth.
Did you know that 60% of small business leads go to the first person who answers the phone? If you miss a call, youve likely lost a customer. I build professional "Lead Saver" systems that instantly engage your customers via SMS the moment you miss a call.
As a Senior Software Engineer with over 8 years of experience building high-scale distributed systems, I don't just write scriptsI build production-ready infrastructure. Whether you need a simple auto-responder or a multi-tenant business management platform, I deliver clean, scalable code.
What I Can Build For You:
- Instant Text-Back: Automated SMS replies to missed calls via Twilio.
- Smart Scheduling: Direct integration with Cal.com or Calendly to book appointments on the fly.
- Lead Management: A FastAPI backend with PostgreSQL to log every interaction so no lead is ever forgotten.
- Multi-Channel Alerts: Real-time notifications via Resend (Email) or SMS.
- Custom API Integrations: Connecting your phone system to your CRM or internal tools.
Why Choose Me? I specialize in high-throughput backend engineering. My code is documented, efficient, and built to scale.
Get to know Kumar J
Kumar J
Senior Software Engineer
- FromUnited States
- Member sinceApr 2026
- Avg. response time1 hour
Languages
Hindi, English
I am a Senior Software Engineer with over 8 years of experience work at a major Tier-1 Tech Company (San Francisco-based). I have built scalable backend systems and leading engineering initiatives across distributed systems, data infrastructure, and authentication. I have a proven track record of driving architecture modernization, mentoring high-performing teams, and translating complex business needs into robust technical solutions at scale.
FAQ
Do I need my own Twilio account?
Yes. You will need a Twilio account and a Twilio-purchased phone number. I will guide you through the setup process and show you exactly where to find your API credentials (SID and Auth Token).
Where will the code be hosted?
I provide the full source code. You can host it on platforms like Vercel, Railway, or a private VPS. If you're unsure which to choose, I can recommend the most cost-effective solution for your scale.
Can this system sync with my existing calendar?
Absolutely. I specialize in integrating the Cal.com Platform API and Calendly. We can ensure that when a lead receives a text, they are immediately prompted to book a time that is actually available on your calendar.
Is the system scalable if I have multiple employees or locations?
Yes. If you choose the Premium tier, I can implement a multi-tenant architecture or multi-user logic, allowing the system to route leads or notifications to different team members.
What if I use a CRM like HubSpot or Salesforce?
I can build custom webhooks within the FastAPI backend to push lead data directly into your CRM, ensuring your sales pipeline is updated in real-time.
