Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am an AI/ML engineer and tech lead with 5+ years of experience building production systems end to end. I co-founded Sparkstream and built onvoice.in, an AI voice platform using FastAPI, React, PostgreSQL, AWS, and multi-provider LLM plus telephony orchestration. Before that, I led 8 engineers at Perfios, where I built automation, monitoring, and ML-backed financial workflow systems. I work best on LLM apps, backend platforms, AI automations, MLOps, cloud deployment, and full-stack delivery.…I am an AI/ML engineer and tech lead with 5+ years of experience building production systems end to end. I co-founded Sparkstream and built onvoice.in, an AI voice platform using FastAPI, React, PostgreSQL, AWS, and multi-provider LLM plus telephony orchestration. Before that, I led 8 engineers at Perfios, where I built automation, monitoring, and ML-backed financial workflow systems. I work best on LLM apps, backend platforms, AI automations, MLOps, cloud deployment, and full-stack delivery.

Harsh R Jain





I am an AI/ML engineer and tech lead with 5+ years of experience building production systems end to end. I co-founded Sparkstream and built onvoice.in, an AI voice platform using FastAPI, React, PostgreSQL, AWS, and multi-provider LLM plus telephony orchestration. Before that, I led 8 engineers at Perfios, where I built automation, monitoring, and ML-backed financial workflow systems. I work best on LLM apps, backend platforms, AI automations, MLOps, cloud deployment, and full-stack delivery.…I am an AI/ML engineer and tech lead with 5+ years of experience building production systems end to end. I co-founded Sparkstream and built onvoice.in, an AI voice platform using FastAPI, React, PostgreSQL, AWS, and multi-provider LLM plus telephony orchestration. Before that, I led 8 engineers at Perfios, where I built automation, monitoring, and ML-backed financial workflow systems. I work best on LLM apps, backend platforms, AI automations, MLOps, cloud deployment, and full-stack delivery.

Available to hire

I am an AI/ML engineer and tech lead with 5+ years of experience building production systems end to end. I co-founded Sparkstream and built onvoice.in, an AI voice platform using FastAPI, React, PostgreSQL, AWS, and multi-provider LLM plus telephony orchestration. Before that, I led 8 engineers at Perfios, where I built automation, monitoring, and ML-backed financial workflow systems. I work best on LLM apps, backend platforms, AI automations, MLOps, cloud deployment, and full-stack delivery.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Work Experience

Co-founder & CTO at Sparkstream Technology LLP

December 1, 2025 - Present

Built an AI voice platform with FastAPI, React, PostgreSQL, AWS, multilingual workflows, and multi-provider LLM plus telephony orchestration. Leading product architecture, backend systems, deployment, and technical strategy.

Tech Lead Engineer at Perfios Software Solutions

August 1, 2021 - November 1, 2025

Led a team of 8 engineers on lending workflow systems, reduced turnaround from 15-20 days to under 2 days, built EMI prediction logic with 95 percent accuracy, and delivered repayment monitoring systems that reduced defaults by 20 percent.