Fractional CTO
November 2025 - Present · 5 months- Leading a 4-engineer team building a multi-tenant SaaS voice agent platform that lets customers design complex voice workflows, connect Twilio phone numbers and calendars, and upload knowledge bases to handle inbound and outbound calls.
- Architected the full-stack application on Next.js + Supabase deployed to Vercel, simplifying the prior stack to accelerate product iteration without sacrificing scalability.
- Built and deployed LiveKit voice agents on AWS ECS for real-time, low-latency telephony at production scale.
- Integrated Deepgram (speech-to-text), ElevenLabs (text-to-speech), and OpenAI for reasoning to deliver natural, low-latency conversational experiences.
- Established GitHub Actions CI/CD pipelines and Sentry monitoring across environments, hardening release safety and observability for the early-stage platform.
- Drove technical strategy, hiring guidance, and engineering practices — balancing rapid feature delivery with platform stability and long-term architecture decisions.
Available for fractional CTO & senior engineering work
Senior software engineer and fractional CTO, ten years in.
I'm currently full-time at DataQueue, building a conversational AI platform on Next.js, NestJS, and GKE. On the side I take a small number of fractional engagements — most recently as CTO at Instack AI, and engineering work at Yalla Bites and BidSource.
Full-stack on Next.js / NestJS with multi-cloud DevOps across AWS, GCP, and Vercel. My delivery is accelerated by Claude Code, Cursor, and a stack of custom subagents I've tuned over the past year. Before this I was Lead Software Engineer at Coretava for ~5 years.
What I'm working on
Updated continuouslyBuilding a conversational AI platform end-to-end on Next.js + NestJS + MongoDB, deployed on GCP GKE. Stripe billing, WhatsApp messaging, and SIP telephony via LiveKit / Asterisk / Vital PBX.
- Instack AIFractional CTO
Leading a four-engineer team building a multi-tenant voice agent SaaS on Next.js + Supabase + Vercel, with LiveKit voice agents on AWS ECS and Deepgram / ElevenLabs / OpenAI in the loop.
- Yalla BitesBackend & DevOps Engineer · Part-time
Backend services for a US home-chef marketplace on Next.js + Payload CMS + Supabase. Stripe payments, Nash for delivery, Shippo for shipping, GitHub Actions and Sentry on the ops side.
- BidSourceFull-Stack Engineer · Part-time
Logistics rate management platform on Next.js + Supabase + Vercel. Shipped Opportunities — multi-rate sourcing and batch carrier outreach — alongside AWS Lambda for allocation and Terraform for infra.
Work
2016 — NowBackend & DevOps Engineer (Part-time)
November 2025 - Present · 5 months- Building backend services for a US-based home-chef marketplace that connects customers with local cooks and powers hyper-local, on-demand meal delivery.
- Developing the platform on Next.js + Payload CMS + Supabase deployed to Vercel, powering both the consumer storefront and the operations tooling.
- Integrated Stripe for end-to-end payments, payouts, and subscription flows across the marketplace.
- Integrated Nash for delivery orchestration and Shippo for shipping label generation, streamlining fulfillment for both delivery and shipping use cases.
- Owning DevOps with GitHub Actions CI/CD pipelines, Vercel-based deployments, and Sentry observability for fast, safe, and observable releases.
Senior Full-Stack & DevOps Engineer
July 2025 - Present · 10 months- Developing a conversation AI platform end-to-end using Next.js, NestJS, and MongoDB, delivering scalable AI-powered conversational experiences.
- Owning DevOps on GCP GKE (Google Kubernetes Engine) — managing containerized deployments, cluster orchestration, networking, and cloud infrastructure for production scalability and reliability.
- Building robust NestJS backend services backed by MongoDB, ensuring high performance and reliability for real-time AI interactions.
- Creating responsive and intuitive Next.js frontend interfaces for seamless user engagement across web platforms.
- Implementing and managing Stripe integration for payment processing and subscription management.
- Developing WhatsApp integration for messaging and conversational AI interactions.
- Building SIP integrations with LiveKit, Asterisk, and Vital PBX for telephony infrastructure and voice communication.
- Implementing full-stack solutions combining NestJS APIs and Next.js frontend components for end-to-end feature delivery.
Full-Stack Engineer (Part-time)
June 2025 - Present · 10 months- Building a logistics rate management and allocation platform that centralizes carrier rates, vendor capabilities, and pricing strategy for freight forwarders, eliminating fragmented spreadsheet-based pricing workflows.
- Developing the full-stack application on Next.js + Supabase deployed to Vercel, owning features end-to-end from data model to UI.
- Designed and shipped Opportunities — a workflow that lets forwarders combine multiple buy rates, generate batch carrier outreach emails, and create derived sell rates in a single flow, replacing multi-day manual quoting cycles.
- Built carrier service area configuration, carrier and customer management, and accessorial configuration modules forming the operational backbone of the platform.
- Built AWS Lambda functions for rate allocation logic and provisioned cloud infrastructure with Terraform for reproducible, version-controlled environments.
Lead Software Engineer
March 2020 - July 2025 · 5 years 3 months- Led the design, development, and scaling of Coretava's loyalty platform, driving cross-functional execution and platform growth.
- Restructured teams into specialized frontend/backend units, reducing cross-team blockers by 50% and increasing sprint velocity by 25%.
- Championed technical excellence through mentorship and agile refinement.
- Drove migration of 250K+ JavaScript lines to TypeScript, cutting runtime errors by 35% and accelerating feature delivery by 20%.
- Restructured React frontend into a monorepo, enabling component modularization and publication of multiple loyalty widget flavors for diverse customers. Delivered JS SDKs to merchants, granting full frontend customizability.
- Adopted NestJS for backend services, enabling 5x traffic growth while reducing module coupling by 60%.
- Designed RabbitMQ messaging to decouple 10 microservices, supporting 3K+ concurrent users with 40% fewer AWS resources (P99 latency <200ms).
- Migrated analytics to BigQuery, slashing main DB load by 70% and speeding complex queries 30x (15min → 30s).
- Launched CoreLoyalty, adopted by 100+ merchants in 6 months, featuring a flexible point system (↓70% customization requests) and SMB-tailored cashback model (↑40% retention).
- Developed 15+ API integrations (VTEX, Magento, WooCommerce), expanding addressable market by 60% and reducing merchant onboarding from 4 weeks → 3 days.
- Designed public REST APIs and developer tools for third-party adoption. Collaborated with POS providers on real-time integrations, establishing Coretava as the region's most interoperable loyalty platform.
Senior Software Engineer
October 2018 - March 2020 · 1 year 4 months- Architected end-to-end Shopify integration via custom apps, enabling seamless merchant onboarding (adopted by 30+ clients within 3 months, expanding TAM by 15%).
- Led development of Android/iOS SDKs (complementing web SDKs), reducing client integration time by 40% and accelerating enterprise adoption.
- Co-launched TeamUp – a team-based loyalty product – by building a React Native mobile app that drove a 30% engagement lift in pilot enterprise accounts.
- Engineered AWS infrastructure (ECS/EC2/S3/CloudFront) supporting 500% YoY traffic growth with zero downtime during peak events.
- Mentored junior engineers on React/Redux best practices and CI/CD standards, reducing production incidents by 50%.
Software Engineer
January 2018 - October 2018 · 8 months- Designed and implemented the initial microservices backend (Node.js/ Express) deployed on AWS ECS. Established public API access via EC2 load balancers, creating a robust infrastructure for growth.
- Developed key backend services powering user/tenant management, points lifecycle (earning/redemption), and interactive loyalty mechanics (missions, games, surveys).
- Spearheaded development of the React/Redux admin dashboard, customer-facing Gamibot widget, and JavaScript SDK – critical tools for internal operations and client integration.
- Managed frontend deployment pipeline using AWS S3 + CloudFront CDN, ensuring high-performance global access to the widget and dashboard.
- Delivered a production-ready MVP that successfully onboarded multiple early customers, proving product value and technical scalability.
Software Engineer
June 2016 - October 2018 · 2 years 3 months- Spearheaded frontend development (React.js, Redux) for the core team revamping Freightos' marketplace platform, now serving 100K+ monthly active users.
- Architected a domain-driven frontend structure and integrated the company's internal UI kit.
- Owned the end-to-end release pipeline: implemented comprehensive testing (Jest unit/snapshot, E2E) and established robust CI/CD workflows.
- Championed seamless deployments using LaunchDarkly feature flags and Segment analytics for data-driven feature validation and performance monitoring.
Skills
By category- Languages
- TypeScript, JavaScript, Python, SQL, GraphQL, HTML, CSS
- Frontend
- Next.js, React, Redux, MobX, Tailwind CSS, Material UI, Bootstrap, Storybook, Server-side Rendering (SSR), Responsive Web Design
- Backend
- Node.js, NestJS, Express.js, Payload CMS, FastAPI, Flask, REST APIs, GraphQL APIs, WebSockets, Webhooks, Microservices, Event-driven Architecture
- Databases & Storage
- MongoDB, PostgreSQL, Supabase, BigQuery, Firebase, Amazon S3
- DevOps & Cloud
- GCP (GKE), AWS (ECS, EC2, EKS, Lambda, S3, CloudFront), Vercel, Docker, Kubernetes, Terraform, GitHub Actions, Jenkins, CI/CD Pipelines
- AI & Voice
- LiveKit, Deepgram, ElevenLabs, OpenAI, Whisper, Llama, Ollama, Vertex AI, AI Agents, Large Language Models (LLMs), Speech-to-Text, Text-to-Speech, Asterisk, Vital PBX, SIP
- Integrations & APIs
- Stripe (Connect, Checkout), Twilio, SendGrid, Nash, Shippo, WhatsApp, Auth0, Amazon Cognito, Shopify, VTEX, Magento, WooCommerce, Pub/Sub, Apollo
- Testing & Tooling
- Jest, Mocha, Sentry, Kibana, Google Analytics, Git, GitHub, Webpack, Figma
- AI-Augmented Development
- Claude Code, Cursor AI, Claude Agent SDK, Custom Subagents, MCP Servers, Agentic Workflows, AI-Assisted Code Review, Automated Codebase Exploration, Anthropic API, OpenAI API
- Architecture & Leadership
- Software Architecture, Solution Architecture, Technical Leadership, MERN Stack, Agile Software Development, Mentorship, Team Restructuring, Third-party Integration
Get in touch
Usually reply within a dayI'm open to fractional CTO and senior engineering work, consulting on AI / voice infrastructure, and the occasional interesting project. The fastest way to reach me is email or WhatsApp.