Engineering Leadership At Scale.
I'm Chan — I build and lead the engineering behind Positeasy, a cloud-native SaaS platform serving 5,400+ merchants and processing 4M billing transactions a month. 11+ years across distributed systems, teams, and the space between them. I also write about it.
About Me
Eleven years of building, scaling, and leading engineering for cloud-native SaaS. At Positeasy I lead a 25-member engineering org through four Engineering Managers — backend, frontend, QA, DevOps, and product engineering — and direct strategy for a 40-member technology organization. I pair executive engineering strategy with hands-on depth in distributed systems and AWS architecture, and champion AI-assisted workflows that measurably accelerate delivery.
Experience
Positeasy
- Lead a 25-member engineering org through four Engineering Managers; strategic leadership for a 40-member technology organization.
- Scaled the multi-tenant SaaS platform to 5,400+ merchants and 4M monthly billing transactions on AWS.
- Architected event-driven microservices with Node.js, Kafka, PostgreSQL, Redis, and MongoDB for throughput and resilience.
- Modernized infrastructure with Docker, Kubernetes, and GitHub Actions CI/CD; built observability with Prometheus, Grafana, and Sentry.
- Championed AI adoption and LLM-assisted workflows, measurably increasing developer productivity.
Poriyaalar
- Led engineering delivery across concurrent SaaS, IoT, and analytics products with cross-functional teams.
- Architected React micro-frontends and cloud-native Node.js microservices, standardizing scalable practices.
- Recruited, structured, and mentored engineering teams, strengthening delivery capability and technical depth.
RightRev
- Led frontend engineering for an enterprise revenue-recognition SaaS used by global finance teams.
- Built reusable React + TypeScript component libraries, improving productivity and UI consistency.
VOGO
- Delivered React and React Native apps supporting fleet management at scale.
- Mentored engineers and contributed to hardware integrations and payment systems.
Capabilities
Engineering Leadership
Technical strategy, organizational scaling, hiring and mentoring leaders, engineering excellence, cross-functional and agile delivery.
Architecture
Distributed systems, microservices, event-driven architecture, REST APIs, WebSockets, system design, technical roadmaps.
Cloud & DevOps
AWS, Docker, Kubernetes, GitHub Actions CI/CD, Nginx, Prometheus, Grafana, Sentry, incident and release management.
Platform Engineering
Node.js, TypeScript, React, React Native, PostgreSQL, MongoDB, Redis, Kafka.
AI & Productivity
Organization-wide AI adoption, LLM-assisted engineering workflows, measurable developer-productivity gains.
Writing
Multi-Database Architecture for Enterprise Customers: How We Built BYODB at Positeasy
A hybrid multi-tenant model. Shared SaaS path stays untouched. Enterprise merchants get their own PostgreSQL. One API call to provision.
Read Essay AI EngineeringUsing Agentic AI and Gen AI in SaaS Product Engineering
Where Gen AI and Agentic AI actually create leverage inside SaaS product teams — and where they still need hard guardrails and human judgment.
Read Essay Engineering CultureThe 100x Product Engineer Isn't a Myth
The gap between engineers who code and engineers who solve the right problems is widening faster than ever. Here's what it looks like.
Read Essay Systems DesignBuilding a Centralized Auth System for a Multi-Product SaaS Platform
One auth service. Three independent products. Kiosks, POS terminals, and mobile apps — all talking to the same identity layer.
Read Essay