# Daren Chow

> Staff Engineer @ Slack

Location: Los Altos, California, United States
Profile: https://flows.cv/darenchow

## Work Experience
### Staff Software Engineer @ Slack
Jan 2021 – Present
On iOS Performance Infra, I am focused on monitoring and improving iOS app-wide performance, by supporting product engineers with the tools and expertise to instrument their work. Previously, on Enterprise Mobile, I implemented and supported key enterprise functionality.

### Founding Engineer @ Woven
Jan 2017 – Jan 2021
3rd engineer hired, and first iOS engineer. Built the iOS app from scratch, including a fully custom performant calendar with a unique tiling algorithm and unidirectional data flow with a unified data cache. Acquired by Slack.

### Software Technical Lead Manager @ Juicero
Jan 2014 – Jan 2017
- Responsible for development team creating customer facing software including mobile (iOS and Android apps), Web (AngularJS), and supporting backend (Django and Node.js) services interfacing to an ERP (NetSuite) system
- Responsible for development of e-commerce flow based on a subscription business model, the corresponding subscription engine, and customer edits to their subscription (Web, Backend)
- Responsible for transaction driven communication and display of fulfilled inventory based on the customer's subscription (Mobile, Backend)
- Work closely with DevOps to facilitate standard development environments, a smooth deployment process, and actionable monitoring and alerting
- Work cross-functionally with Marketing, Product, Finance, Manufacturing Ops, and Product Designers to architect solutions on time and meet requirements
- Architect, develop & manage key end-to-end features (iOS / Android, Web, Backend)
- Monitor production systems and address any issues as well as provide customer support
- Interview & recruit team members, helped grow team from 6 to 25+ members
- Performed sprint planning and mentorship for a team of ~8 developers
- Provided upper management with visibility into development schedule with weekly breakdowns up to 3 months out, and roadmaps up to 6 months out
- Introduced and implemented best practices, such as code reviewing, style guides, automated testing, release management, & interview techniques

### CEO/Founder @ PlayLocker
Jan 2011 – Jan 2015
Developing high quality, easy-to-use mobile apps (iOS) geared towards assisting sports coaches and players enhance digital collaboration

### Mobile (iOS / Android) Developer @ Hello SMS
Jan 2013 – Jan 2014
Hello SMS was a minimalistic Android SMS replacement used by 4.7M people.

• Developed key features of the Android messaging app that reached over 1M downloads within ~8 months of it's initial release
• Setup Android integration of A/B testing framework for growth hacking
• Prototyped an iOS version of the messaging app

### Project Manager / iOS Developer @ Apptera
Jan 2012 – Jan 2013
• Developed Raved (iOS), an app that helps friends find great places
• Worked with product, marketing, and developers to manage iOS and Android apps
• Provided UI guidance and insight to simplify and focus the 2.0 re-design
• Built analytics structure to track app performance and usage metrics

### Co-Founder @ Takeout Code
Jan 2010 – Jan 2013 | Takeout Code is a small software contracting company that specializes in mobile
Takeout Code is a small software contracting company that specializes in mobile application development

### Lead Software Developer @ Lattice Semiconductor
Jan 2008 – Jan 2012
• Planned redesign of Lattice's Diamond Programmer Suite (formerly ispVM System)
• Redesigned and implemented UI and user flows for the main Diamond Programmer GUI (formerly ispVM System)
• Developed next generation floor plan software for Lattice FPGAs
• Designed a new, modern, intuitive GUI (Qt) to simplify floor planning
• Defined company-wide GUI standards to enhance usability and uniformity across the tool suite
• Composed and led design specification through software and marketing reviews and approval
• Drove project to meet schedule that originally began three months behind

### iOS Developer @ www.daren.com
Jan 2009 – Jan 2011
•	Developed PlaybookBball (iPad), a basketball playbook app that animates step-by-step plays. Released to the App Store 4/2/2010, peaked at 5th in the Sports Category
•	Developed PlaybookBball-To Go (iPhone/iPod Touch), a basketball playbook app that animates step-by-step plays
•	Developed Shake or Die! (iPhone), a memory game, released to the App Store 2/22/2010

### Software Developer @ Lattice Semiconductor
Jan 2006 – Jan 2008
• Built and maintained Power Calculator (PC) GUI (Java Swing) and Engine (C/C++) – program
that estimates FPGA power consumption
• Added full PC support for all of Lattice’s FPGA family
• Developed and maintained program for design (NCD) resource extraction for use with PC
• Developed and maintained PC Command Line Interface to automate internal QA – reduced QA
time from multiple days to a few hours
• Architected next generation PC to become more modular, extensible and more easily maintained
• Performed HW/SW co-verification and software modeling (device capture) of FPGAs
• Resolved PC customer issues by working with Applications Engineers
• Received Lattice Spot Awards for helping drive delayed project back to targeted schedule in order
to meet strict deadlines

### ASIC Verification Engineer @ Lockheed Martin
Jan 2006 – Jan 2006
• Performed chip level and unit level verification for a ~100K gate ASIC design
• Created Test Vectors for foundry testing targeting Honeywell HX3000 .35 um SOI CMOS process
• Prepared the Honeywell Foundry Preliminary Design Review Package including Power
Estimation, Clock Tree Diagram, Pin Assignments, and Simultaneous Switching Output
Calculations

### FPGA Designer @ Lockheed Martin
Jan 2004 – Jan 2005
• Converted and optimized an embedded C algorithm to VHDL targeting a Xilinx Virtex-II Pro,
resulting in an 80% speed improvement
• Created a NI LabWindows (C) program to graphically interface with the FPGA and high precision
temperature sensor board for data acquisition and board debugging
• Debugged, diagnosed and repaired design at FPGA and board levels
• Performed thermal cycling vacuum testing of the high precision temperature sensor


## Education
### MS in Materials Engineering
Stanford University

### BS in Electronic Materials Engineering
UCLA


## Contact & Social
- LinkedIn: https://linkedin.com/in/daren-chow
- Portfolio: http://www.daren.com
- Portfolio: http://www.theplaylocker.com

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Source: https://flows.cv/darenchow
JSON Resume: https://flows.cv/darenchow/resume.json
Last updated: 2026-04-12