For pdf version of my resume, you can view it here.

Ryan Liao

Tech Product Engineer

Summary

Tech founder background with 10+ years of experience delivering and supporting production systems for B2B customers across ecommerce, adtech, martech, and SaaS.

Proven track record taking products from 0 to 1 and shipping revenue generating solutions used by thousands of businesses globally.

Owned full-stack architecture spanning across design, backend, frontend, infrastructure, data pipelines, and integrations - while working closely with customers to translate requirements into scalable solutions.


Work Experience

For in-depth details of my work experience, please visit here.


Founder at RenderKu.com (2023 - Current)

Email Design Platform

  • Adopted by merchants globally, including a Fortune Global 500 company as a paying customer.

  • Email editor with a built-in design editor. Like having a Canva within your email editor to allow users to modify images without re-uploading. See demo

  • Used ReactJS for complex editor functionality.

  • Rated 5/5 and top suggested "email templates" app from Shopify app store

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Founder at OnVoard.com (2017 - Current)

All-in-one Ecommerce Marketing Platform

  • Developed 7 different marketing apps (Email Marketing, Recommendation, Loyalty, Popups, etc.) and integrated with major ecommerce platforms like Shopify, BigCommerce, Wix, and others.

  • Hundreds of paying customers and more than 100 reviews across all platforms.

  • Thousands of sites are using OnVoard. Stats validated by builtwith.

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Founder at Eatasy.com (2015 - 2017, Discontinued)

Dish-Specific Food Review App

  • Created an android mobile app and used both mobile and desktop web platforms to allow users to rate and search for the best individual dishes in a city.

  • Used Django, Postgres, jQuery, Algolia for search filtering, and Apify for web scraping.

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Founder at AudiencePi.com (2013 - 2015, Discontinued)

Self-Serve Demand Side Platform (Adtech)

  • Single-handedly built a complete self-serve demand side platform, integrating with Google Adexchange and BidSwitch via OpenRTB.

  • Designed and operated multi-cloud, multi-region ad infrastructure in 4 clusters across North America, Europe, and Asia. 2 clusters hosted with Google Cloud, and 2 clusters with Softlayer.

  • High throughput with low latency. Processed and responded to more than 1000 bid requests concurrently within 100ms consistently.

  • Fully automated deployment and configurations of 19 different services (e.g. bidder, adserver, predictor) across 40+ server instances using Ansible.

  • Real time bidder written in Golang. Scikit-Learn for Predictive Modeling.

  • Aerospike for OLTP. Bigquery for OLAP.

  • Python scripting for data pipeline. Fluentd for streaming ad logs.

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Projects

Algorithmic Trading System (2024 - Current)

  • Develop a fully automated stock trading system in Python using technical analysis to execute trades without emotional bias from human touch.

  • Backtested 100+ trading strategies and algorithms (e.g., RSI-based mean reversion) to identify statistically robust and production-viable strategies.

  • Optimized data architecture by migrating from QuestDB to ClickHouse, significantly improved processing speeds for complex queries and reduced storage costs by over 2X.

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PointAnswer.com (2024 - Current)

Help Center Software

  • Developed a simple, cost-effective helpdesk solution using Django, Postgres, NextJS, and Typesense for keyword search.

  • PointAnswer is used to draft and host the web version of this resume.

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WhoSentWhat.com (2024, Discontinued)

Email Designs Inspiration Site

  • Developed a design inspiration website showcasing email designs from various brands and use cases.

  • Used AI to automatically build taxonomies and categorize emails based on its content.

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Education & Professional Development

  • Business Informatics: Nanyang Polytechnic

  • Machine Learning: Andrew Ng (Coursera)

  • Computer Science: Bachelor’s equivalent professional experience (10+ years) building software and scaling production systems


Skills

  • Programming: Python (Django), Javascript (ReactJS, NextJS, MobX), Golang, NodeJS, Java

  • Data & ML: SQL, PostgreSQL, Clickhouse, BigQuery, Redshift, Vertica, Spark, Iceberg, Aerospike, Redis, Typesense, Dask, Scikit-Learn, PyTorch, XGBoost, OpenAI, SBERT, NLP, Association Rule

  • Infrastructure: Kubernetes, AWS, GCP, Nginx, Caddy, Ansible, Fluentd, Kafka, Flink, RisingWave

  • Expertise: SaaS, Fast Prototyping, API & Integrations, Devops, Observability & Monitoring, Email Marketing, Technical Support, Automation, Ecommerce, Search Filtering, Distributed Systems, Data Warehouse & Lakehouse, Recommender System, Martech, Adtech, Algotrading


FAQs