# Zhao Han

> Principal Software Engineer - Broadcom (Symantec Enterprise Division)

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/zhaohan1

Long time iOS developer with strong backend experience. Interested in combine the power of both ends.

## Work Experience
### Principal Software Engineer - Symantec Enterprise Security @ Broadcom Inc.
Jan 2022 – Present | San Jose, California, United States

### Principal Engineer (Tech Lead) @ Dasera, Inc.
Jan 2019 – Jan 2022 | Sunnyvale, California
• Join Dasera as the first engineer - involved in the whole lifecycle of requirement, design, implementation, test and deployment
• Build both the Dasera Discovery data security + governance platform and the engineering team from the ground up
• Design and implement the core components of Dasera Discovery platform for cloud data security including Policy, Classification, Auto discovery, Misconfiguration detection, Open API, User Authentication
• Deliver the multi-cloud SaaS solution on AWS, GCP & Azure
• Work closely with product team and early customers to co-design features that meet their
needs in the field
• Lead the backend team, point of contact with the offshore frontend team in Ukraine
• Address the security (Pentest with 3rd party) and performance issue
• The tech stack is Scala, Play framework, Akka, Slick, OData & Postgres

### Principal Software Engineer - Endpoint Protection @ Symantec
Jan 2016 – Jan 2019 | Mountain View, CA
Endpoint Protection

• Work on the inventory backend (Micro services on AWS) of Symantec Cyber Defense Manager (CDM)
• Design, implement and optimize core services (inventory ingestion, query, policy application, file hash importing etc) - Rest APIs with MySQL/Aurora/CouchBase as backend storage
• Design and implement a word distance based heuristic algorithm to identify an app in the NIST CPE ID repository - as a core component of CDM for app vulnerabilities detection

### Principal Software Engineer - Enterprise Mobile @ Symantec
Jan 2013 – Jan 2016 | Mountain View, CA
Enterprise Mobile

• Work on the iOS module of Symantec App Center product which provide a transparent security layer for enterprise and 3rd party app developers (MAM & MDM)
• .dylib injection on iOS system calls - including file encryption, network and data sharing features
• Research and securing new features of iOS (Multi-peer, AirDrop, State Restore etc)
• Implement AppVPN to support socket level network forwarding (which is a shared solution between iOS and Android)
• Patent for fine grained privacy control system in mobile context

### Independent Developer - NokiSoft @ NokiSoft
Jan 2009 – Jan 2012 | Beijing City, China
As the single developer of NokiSoft, design and implemented multiple productivity apps and backup data recovery tools on iOS, Mac and Windows

- On AppStore

• FioWriter: productive text editor with command keys and cloud sync (for iPhone & iPad), recommended as “Apps for Writers” & “Apps for iOS 9” on AppStore worldwide
• PhotoNoter: handwritten note on iPhone photo (iPhone)
• iNoki: importing Nokia phone data to iPhone (Objc & Lua, iPhone)
• InstaClip: auto find & crop Instagram photos from screenshots in camera roll (iPhone)
• Reboot TL: reboot TP-Link router with a tap (iPhone) 

- As Shareware

• Noki: Nokia PC Suite backup file explorer, recommended as a goto tool by Nokia customer support for its customers (C++ & Lua, Windows)
• NokiGems: Merge SMS from multiple Nokia backup files for restoring back
• iBackupCare: iPhone backup file explorer (Objc & Lua, Mac)
• WeBack: Export WeChat message from iTunes backup file (Objc & Lua, Mac), recommended by ifanr (a leading tech media in China, www.ifanr.com/515943)

Site: www.nokisoft.com

### Develop Lead - Advanced Compiling Lab @ Institute of Computing Technology, Chinese Academy of Sciences
Jan 2007 – Jan 2009 | Beijing City, China
• Develop process level virtual machine for Loongson 3 on Linux
• Optimize binary translation of applications from x86 to mips platform 
• Lead a team of 10 members; mentor intern

### Independent Developer @ Fio Game Engine
Jan 2006 – Jan 2007 | Beijing City, China
• Design and implement a 2D game engine (in C++ & Lua)
• The engine is used to finish an isometric RPG game demo (The Black isle Fallout
series alike) and an action game (graggame.googlepages.com)
• Level editor based on Tiled (Java)
• v0.1 at http://www.nokisoft.com/fio/wiki/screenshots.html

### MMI & App Engineer @ CECW
Jan 2004 – Jan 2006 | Beijing City, China
• Develop MMI software for Philips SysolME & DragonFly platform 
• Develop PC Sync Tools to transfer phone data to PC
• GSM module development and maintenance


## Education
### Master's degree in Computer Science
Northwestern Polytechnical University

### Bachelor's degree in Computer Science
Northwestern Polytechnical University


## Contact & Social
- LinkedIn: https://linkedin.com/in/zhao-han-ba3737193

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Source: https://flows.cv/zhaohan1
JSON Resume: https://flows.cv/zhaohan1/resume.json
Last updated: 2026-04-12