Architecting High-Performance
Data Pipelines & Business Analytics
I help fast-moving startups and distributed teams turn tangled data into reliable, automated ETL pipelines, lightning-fast SQL databases, and decision-ready executive dashboards.
Freelance Engineering Services
Practical, production-grade solutions designed for asynchronous remote delivery and rapid ROI.
Automated ETL/ELT Pipelines
End-to-end data ingestion and transformation from third-party APIs, transactional DBs, and file systems directly into your warehouse using Python & dbt Core.
SQL Optimization & Tuning
Slow dashboards and heavy queries wasting compute? I profile, refactor, and index complex relational queries to bring execution times from minutes down to seconds.
Executive BI & Dashboards
Translating messy metrics into clear, automated executive reports in Power BI, Tableau, and SSRS. Clean DAX, optimized models, and intuitive UX for leaders.
Secure Automation & Systems
Automated EDI/SFTP transfers, enterprise AES-256 data encryption for compliance, and containerized deployments using Docker and Linux.
How I Work (Remote & Nomad Framework)
Designed for high autonomy, asynchronous delivery, flexible timezone overlap, and rock-solid data security.
Timezone Overlap (UTC+8)
Based in Malaysia with dedicated daily overlap hours for US morning catch-ups (PST/EST) and European afternoons (CET/GMT). While your team sleeps, data pipelines get built and tested.
- US West Coast (PST) morning overlap
- Europe / UK afternoon collaboration window
- Fast overnight turnarounds for Western teams
Async-First Velocity
I value your focus and time. I document everything in Notion, record 3-minute Loom walkthroughs for all deliveries, and use Git pull requests for clean code reviews without meeting bloat.
- Loom video demos for every deliverable
- Structured Notion sprint boards & architecture docs
- Slack / Teams daily progress updates
Secure Remote Staging
No fragile local testing. I run a 24/7 self-hosted Debian 12 server with Docker containerization and encrypted ZeroTier mesh VPN to test ETL pipelines safely before staging deployment.
- AES-256 data protection & PDPA compliance
- Isolated Docker containers for staging data
- ZeroTier encrypted network access
Transparent Milestones & Billing
Clear sprint scopes with fixed-milestone contracts or flexible monthly retainers. Frictionless multi-currency international invoicing via Wise or Stripe in USD, EUR, GBP, or SGD.
- Fixed-price milestones or weekly retainers
- Direct multi-currency payments via Wise / Stripe
- Clear deliverables & ROI before work begins
Case Studies & Experience
Real-world business impact delivered across dynamic data environments.
SQL Developer & Business Intelligence Specialist
- Resolved a critical Power BI query bottleneck in under 30 days, restoring dashboard responsiveness for executive stakeholders.
- Engineered and deployed SSIS packages integrated with CozyRoc connectors for robust enterprise ETL.
- Automated secure EDI financial exports from SQL Server via automated SFTP channels.
- Implemented AES-256 column-level encryption in SQL Server to maintain strict PDPA data privacy compliance.
Junior Data Engineer (Pipelines & Warehouse)
- Architected end-to-end data pipelines and a centralized data warehouse foundation for analytics.
- Reduced manual data ingestion time by 90% through automated Python scripts and scheduled workflows.
- Maintained over 90% data accuracy across all transformation stages with automated validation rules.
- Developed and maintained customized dbt Core SQL models for cross-functional business intelligence.
Debian Linux Homelab & Containerized Services
- Built and maintains a dedicated 24/7 Debian 12 server utilizing Docker for isolated container management.
- Configured ZeroTier virtual software-defined network for secure remote access without port-forwarding vulnerabilities.
- Hosts media pipelines, automated file sync, and game servers with automated uptime monitors.
Skills & Tooling
Technologies I use daily to build robust, scalable data infrastructure.
Data & Code
Databases & Warehouses
BI & Analytics
DevOps & Infrastructure
Spoken Languages & Client Communication
Clear, proactive communication is the foundation of successful remote engineering. I bridge global teams with fluent English and native Chinese, ensuring seamless async video demos, clear technical documentation, and stakeholder alignment.
Full professional proficiency • Technical architecture, Loom video demos, Slack & Zoom
Native bilingual fluency • Direct cross-border collaboration with Singapore, HK & Taiwan teams
Professional working proficiency • Malaysian national & regional enterprise collaboration
Native dialect fluency • Regional cultural connection across Southeast Asia
Bachelor of Computer Science (Hons)
Specialization in Data Science
Multimedia University, Cyberjaya (2018 – 2021) | CGPA: 3.1 / 4.0
SAFe 6 Practitioner
Scaled Agile Framework
Enterprise Agile & Remote Lean-Agile Delivery (Credly Verification ↗)