~/rena

Work

Projects

A selection of production systems I've built or led across LLM infrastructure, healthcare AI, fintech, and platform engineering.

Sully.ai — LLM Agent Platform

Core Contributor

2023–Present

Core contributor at a YC-backed AI-powered receptionist platform. Owned conversational flow design, prompt engineering, tool integration, and backend infrastructure end-to-end. Drove measurable lift in platform stability, user retention, and agent capability at scale.

  • Designed and maintained conversational agent flows and tool use pipelines
  • Built and iterated on backend infrastructure handling real-time AI sessions
  • Improved platform stability and agent capability through prompt engineering and system design
LLM AgentsVoice AINestJSAWS

Multi-Agent Voice Orchestration

Lead Engineer

2024

Integrated and orchestrated five AI voice agent providers (ReTELL, VAPI, Trillet, Millis, Hamsa) into a single unified production application. Engineered the abstraction layer governing AI mode switching, agent handoffs, and functional scaling across providers.

  • Designed a provider-agnostic abstraction layer for multi-vendor voice AI
  • Engineered real-time agent handoff logic and mode-switching state machines
  • Enabled production scaling across five providers from a single codebase
Voice AIReTELLVAPITypeScriptAbstraction Layer

Healthcare AI & EHR Unification

Lead Engineer

2024

Unified four EHR systems (Athena, DrChrono, Practice Fusion, Metriport) into a single AI-powered application layer, enabling real-time clinical data access and automated decision support workflows.

  • Built a HIPAA-aware medical platform integrating Modernizing Medicine's API
  • Implemented SSO and IAM/Active Directory-backed access control
  • Reduced preprocessing time by 10% and improved AI inference speed by 30%
HealthcareEHRFastAPIHIPAARAG

Vegannation — Fintech Platform

CTO & Co-Founder

2018–2023

Co-founded and led all engineering for a fintech-scale consumer platform. Owned the full technical outcome from product surface to infrastructure across a distributed team of 10+ engineers.

  • Designed core platform architecture — React/Next.js/TypeScript with 30% reduction in system downtime
  • Built diversified payments infrastructure: Stripe, local gateways, and ERC-20 smart contracts
  • Implemented CI/CD pipelines via Azure Data Factory, reducing deployment time by 50%
  • Mentored a distributed team of 10+ engineers across the full stack
Next.jsAWS EKSStripeKubernetesSolidity

JP Morgan — Athena & Fusion

Software Engineer

2016–2018

Core engineering support for the Investment Bank's real-time analytics and high-frequency trading infrastructure (Athena). Separately, built data normalization and analysis pipeline architecture for large-scale financial datasets (Fusion).

  • Contributed to Athena — JP Morgan's high-frequency trading analytics platform built in Perl
  • Designed data normalization and publication workflows for Fusion at scale
  • Built and deployed applications for high-net-worth client workflows
PerlHFTData PipelinesFinTech