# Ena So

> COO @ Ziva | AI Agent inside Game Engines

Location: Menlo Park, California, United States
Profile: https://flows.cv/ena

Full-stack engineer specializing in distributed systems, data infrastructure, and platform engineering. I build scalable systems that handle millions of events while enabling data-driven decision-making.

🔧 WHAT I BUILD
- Event-driven architectures & microservices (AWS Lambda, AWS DMS, AWS SQS, Kafka, Debezium)
- RESTful APIs & WebSocket infrastructure with RBAC and audit logging
- Data warehouses & ETL pipelines (Redshift, DBT, dimensional modeling)
- Platform infrastructure (Docker, Kubernetes, Terraform, CI/CD, ArgoCD)
- Languages: Python, TypeScript, Clojure, Java

📈 RECENT IMPACT
- Architected event-driven platform processing 400+ event types across 4 global regions
- Built secure admin APIs with RBAC and audit logging achieving ISO/IEC 27001 certification
- Designed data warehouse serving 200+ B2B customers, reducing ad-hoc requests 90%
- Developed WebSocket API handling 60+ concurrent connections for real-time monitoring
- Generated $800K revenue impact through proactive monitoring infrastructure
- Achieved zero execution errors across 20M+ algorithmic trades

💡 LEADERSHIP
I lead technical design reviews, mentor engineers, and break down technical barriers across distributed teams. I focus on building systems that are scalable, maintainable, and actually get used.

🌍 WHAT'S NEXT
Relocating to the Bay Area in November 2025 (Canadian citizen, TN visa eligible).

Open to: Distributed Systems | Data Platform Engineering | Backend Infrastructure | API Development | Technical Leadership | Software Engineer

Let's connect if you're building systems that matter.

## Work Experience
### Chief Operations Officer @ Ziva
Jan 2025 – Jan 2026 | California, United States

### Software Engineer @ ProtoPie
Jan 2023 – Jan 2025 | Seoul, South Korea
**Platform Architecture & Distributed Systems**
- Designed event-driven architecture processing 400+ event types across 4 global regions serving 200+ B2B customers
- Consolidated distributed tracking systems, reducing complexity 67% (600 to 200 events) and accelerating analysis 95% (2 days to 15 min)
- Established architectural patterns and documentation enabling platform scalability

**Data Infrastructure & Analytics**
- Architected AWS Redshift data warehouse with dimensional modeling (star-schema data marts) for product usage, customer health, and revenue analytics
- Led data modeling initiative using DBT, designing fact/dimension tables for cross-functional analytics
- Developed batch ETL pipelines integrating Salesforce, product telemetry, and billing data into unified data marts
- Reduced ad-hoc requests 90% and maintenance overhead 95% (1-2 days weekly to 0.5 days monthly) via self-service BI platform (Lightdash)

**System Reliability & Code Quality**
- Redesigned billing alert architecture in Clojure, eliminating 90% code duplication and improving incident response 87% (15 min to 2 min)
- Improved Salesforce Apex test coverage from 7% to 90%, automating deployment pipeline from sandbox to production
- Established code review standards and best practices across engineering teams

**Technical Leadership**
- Led design reviews with engineering, product, and business stakeholders to evaluate technologies and define system architecture
- Mentored engineers on architectural decisions and established patterns for distributed system design
Drove technical alignment across 4 regional teams, breaking down technical barriers

**Business Impact**
- Built monitoring infrastructure identifying $700K ARR churn risk, delivering $800K revenue impact ($700K retention + $100K expansion)
- Rapidly prototyped and scaled compliance architecture to production, deploying AWS Lambda microservices enabling enterprise acquisition

### Software Engineer @ sandbank
Jan 2021 – Jan 2025 | Seoul, South Korea
• Regulatory Compliance & Risk Management: Rebuilt legacy admin portal lacking access controls where all employees had withdrawal approval, developing secure RBAC system with admin API and audit logging within 1‐month deadline to achieve ISO/IEC 27001 certification and enable enterprise acquisition.

• Algorithmic Trading Infrastructure: Built trading ecosystem managing $1M AUM including 3 algorithmic bots with data collection, execution logic, and monitoring systems, achieving zero execution errors across 20M+ trades through automated monitoring and multi‐strategy execution.

• Platform Architecture & Scalability: Designed modularized trading architecture eliminating exchange‐specific rebuilds, reducing deployment from weeks to parameter configuration while enabling multi‐strategy execution across cryptocurrency exchanges.

• Real-Time Performance Monitoring: Built WebSocket API infrastructure handling 60+ concurrent connections for live performance monitoring, enabling rapid strategy adjustments generating 6% weekly profits during volatile periods through data‐driven decisions.

### Software Engineer @ Abliminal
Jan 2021 – Jan 2021 | Remote

### Software Engineer @ Clutch
Jan 2020 – Jan 2021 | Toronto, Ontario, Canada
• Used React for front-end development
• Created Role-Base-Access-Control for company’s internal data
access from scratch
• Designed and implemented single table AWS DynamoDB for role
schema
• Used Express, Node.js and AWS-lambda for creating endpoints
• Developed express middleware to validate access to internal data
based on admin user roles
• Worked on developing AWS service libraries to access DynamoDB
and Cognito
• Refactored existing code base and improved the performance of
network speed
• Used Sequelize to create model and migrations for the data in
PostgresSQL

### Undergraduate Teaching Assistant @ University of Guelph
Jan 2020 – Jan 2020

### Junior C++ Developer @ Cadsoft Corporation
Jan 2019 – Jan 2020 | Guelph, Ontario, Canada
• Developed Building Information Modeling(BIM) CAD software
• Used OpenGL to develop 3D renderings and orthographic layouts in
C++
• Performed white box and black box testing and created bug reports
• Worked in an agile environment

### Teaching Assistant @ University of Guelph
Jan 2019 – Jan 2019 | Guelph, ON
UofG CIS*2750 Software System Development and Integration
Using automated test harness to grade student assignments.
Running regular office hours.
Using the Redmine ticketing system to answer student's question.

### Tutor @ University of Guelph
Jan 2017 – Jan 2019 | Guelph
Tutoring 1st and 2nd year student with math, and computer science


## Education
### BComp in Computer Science
University of Guelph


## Contact & Social
- LinkedIn: https://linkedin.com/in/ena-so

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Source: https://flows.cv/ena
JSON Resume: https://flows.cv/ena/resume.json
Last updated: 2026-04-01