Sinclair Lim
Software Engineer
Software engineer based in Singapore. UC San Diego CS alum building automation and SaaS platforms that turn data into decisive action. Open to opportunities worldwide.
Get in TouchWork Experience
Razer
Software Engineer
Mar 2026 — Present · Singapore- Led the Game Data Bridge (GDB) team as technical lead and DRI, owning architecture, roadmap, and execution while mentoring 2 software engineers on the core data platform powering Razer's flagship AI-powered QA Copilot (QAC).
- Architected and built GDB from 0→1, a local-first edge middleware for capturing gameplay telemetry, user inputs, and screen recordings, enabling offline-first data collection, automatic synchronization, and streamlined CI/CD deployment with minimal release friction.
- Delivered AI-enabled QA infrastructure adopted by multiple AAA game studios, processing thousands of gameplay sessions across early enterprise deployments and enabling automated bug discovery workflows through multimodal ingestion, video clipping, and contextual data pipelines for agent-based analysis.
CaliSim
Full-Stack Software Engineer
Jan 2025 — Present · Seattle, WA, USA- Led 0→1 development of a distributed eSIM marketplace serving 170+ countries with one-click iOS install using React, Next.js, Node.js, PostgreSQL, improving service reliability for 1000+ users by reducing unsuccessful eSIM installations from 7% to 5%.
- Designed and implemented end-to-end automation for order fulfillment, enabling instant eSIM provisioning and replacing workflows that previously required a full-time Customer Support role.
- Deployed AI-powered customer support and owned backend systems and workflow engines from design to production, eliminating all required human intervention from point of sale to fulfillment.
Mansa Holding Pte Ltd
Founding Software Engineer
Jan 2021 — Aug 2024 · Singapore- Designed and built the company's ERP system from scratch using Python, Supabase, AWS, replacing a full-time Accounting role with fully automated reporting and operational workflows.
- Engineered computer vision systems and automated back-office workflows across operations and finance, supporting 1,800+ monthly operations while reducing manual effort from 40+ hours to 25 hours weekly.
- Designed and implemented fleet-management algorithms that dynamically optimized truck scheduling, improving unloading efficiency by 20%+ to over 27 trucks/day.
Solutions I've Built
Operations Intelligence Platform
ERP analytics suite that monitors job delays, fleet downtime, and cost drivers so waste management leaders can resolve performance issues in real time. Currently powering Ecozeal Waste Management Pte Ltd.
CaliSim Global eSIM Marketplace
Launched a live marketplace with one-click eSIM installs, automated fulfillment, and analytics coverage across 170+ countries.
Findings from Model Analysis
AI-Powered Apartment Price Forecasting
Engineered regression models and data pipelines in Python, NumPy, and Pandas to predict rental pricing from amenity-rich housing datasets.
Economic Dynamics: U.S. Money Velocity Analysis
Examined macroeconomic indicators with linear regression and block bootstrapping to explain movements in U.S. money velocity, surfacing Economic Policy Uncertainty as a key lever.
About Me
I’m a product-driven full-stack developer and data analyst who ships fast, high-impact software. From analytics pipelines to automation and SaaS platforms, I focus on getting reliable solutions into production quickly so teams see measurable business outcomes sooner, and I get the most satisfaction when data unlocks smoother workflows and sharper decisions.
Over the weekends, you can find me either at the tennis court, planespotting, or just catching up with friends at a nearby park!
