# Goal:In search of an engineer position that can maximize the utilization of learned knowledge and enable continuous personal growth; the main objective is to become a trustworthy partner, team player at work.#Professional Skills: - Specialize in C/C++, PHP and Shell Script programming languages - Familiar with development of embedded systems - Possess knowledge of network: wired/wireless communications protocol - Ability to develop Linux kernel module and driver - Familiar with Linux authentication system#Patent:* Method And System For Software Updating In Intranet Taiwan patent I769734: https://patents.google.com/patent/TWI769734B https://patentimages.storage.googleapis.com/30/6b/c8/0cf1980bab4e60/TWI769734B.pdf* A Method and System of Installing Different Operating System Taiwan patent I799035: https://patents.google.com/patent/TWI799035B/en Patent Pending: US(17/844,740) China(202210122060.5)#Certification: LPIC (Linux Professional Institute) level 2 lpi.org/v/LPI000429913/pj4ulw2c7n#Work Experience:*Authentication - Implement Oauth System with JWT, redis server, PAM and nsswitch. - Implement two factor authenticator on QNAP NAS with TOTP, QRcode and Push notification (https://docs.qnap.com/application/qnap-authenticator/1.x/en-us/logging-in-with-2-step-verification-157B8FD1.html) - Maintain session, token system on QNAP NAS*OpenSSL - Upgrade QNAP NAS to OpenSSL3 - Develop Encrypt/Decrypt Function on QNAP NAS*Samba - Apply Posix ACL feature on File System - Implement join AD, Domain user and Domain Controller*Qsync - One man to build up whole Qsync System (https://www.qnap.com/en/software/qsync) - File Versioning System (librsync) - Sqlite, Mysql DB*Debian Operating System - Develop a ubuntu/debian like system : https://www.qnap.com/en/operating-system/qne-network/1.0 - System design including disk layout, firmware image implement and upgrading procedure - Bootup system including develop boot loader (uboot, grub), initramfs*Develop and maintain File Protocols - FTP - Webdav - NFS*Research & Develop Wireless AP Firewall System (six months) - Implement the second and third layer of the AP firewall - Design and compos test examples, and utilize software tools to test out the functionality of the firewall - Modify iptable/ebtable module*Maintain open source SNMP, NTP, Curl, wget, OpenSSL, pppd, cups, crond, busybox, httpd, apache, nginx, apt, systemd, ldap, dhcp, proftpd, jmeter, buildroot, yocto*Supervisor As a Supervisor of Firmware RD Team 10 months
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Firmware Engineer聯想Taiwan -
Assistant R&D ManagerQnap Systems, Inc. Mar 2022 - Present台灣 新北市 汐止區Security- Implement single sign on (SSO) authentication feature- Use AppArmor to protect application- Upgrade NAS OpenSSL1.1 to OpenSSL3. Provide OpenSSL3's encrypt/decrypt function code for all engineer of company.Firmware Upgrade- Develop Operating System switch procedure which can replace OS between NAS and Edge product on the same hardware. (Taiwan Patent https://patents.google.com/patent/TWI799035B/en)Supervisor (For now, I would like to be a developer)- As a Team Lead of Firmware RD Team with 7 members 2023/3 - 2023/12. - I learn a lot from that position. Such like understanding how a company works from a top down angle. More consideration of production awareness. -
Principal Engineer威聯通 Mar 2015 - Mar 2022台灣 新北市 汐止區Authentication & Security- Responsibility of authentication system on QNAP NAS and Edge Product.- Develop OAuth System (Server Side) and provide RESTful API. Which implement with Json Web Token (JWT), redis DB server.- Develop PAM (Pluggable Authentication Modules) and Name Service Switch(NSS, nsswitch) library to combine QNAP cloud's account mapping to local system. (ex: use cloud account login local device)- Implement server side of Two Factor Authenticator (2sv) including TOTP, QRcode and Push notification (https://docs.qnap.com/application/qnap-authenticator/1.x/en-us/logging-in-with-2-step-verification-157B8FD1.html)- Maintain session, token life cycle, hash, random function mechanism.- Develop file encrypt and decrypt function (by OpenSSL) for QNAP NAS server side and mobile App and Windows and MAC utility. (https://www.qnap.com/solution/file-station/en-us/)Application Privilege- Develop application privilege system that control which user can use specified application on Server.Maintain Open Source (Frequent Responsibility)- SNMP, NTP, Curl, Wget, OpenSSL, pppd, cups, crond, busybox, httpd, apache, aptDebian OS System- A new product for Edge Computing, is a Debian (ubuntu like) system: https://www.qnap.com/en-us/product/series/qucpe- System design and develop including disk layout, firmware image building and firmware upgrading procedure.- Service control by systemd- Design and implement package develop and release flow (DevOps). use gitlab and debhelper. (Taiwan Patent https://patents.google.com/patent/TWI769734B)- Boot-up system including boot loader (uboot, grub), initramfsApplication Store- Responsibility of App Store on NAS production.- Enhance App Store system from CGI base to daemon.- Develop daemon as multi-queue architecture to handle multitask well- Handle dependency between App. such that install App b had install App B first
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Senior Software Engineer威聯通 Nov 2011 - Mar 2015台灣 新北市 汐止區File System- Apply File System Posix access conrtrol (ACL) feature and develop related library function for upper layer- Maintain File System basic access control functionDomain Controller- Implement winbind (Samba) join AD procedure and uid to sid mapping- Implement Domain user and Domain group related library function for upper layerLDAP- Maintain LDAP client and server serviceQsync- It is a new file sync product like dropbox: https://www.qnap.com/en/software/qsync- One man to build up whole Qsync System (server side) backend- Enhance librsync library to implement File Versioning System- Use Sqlite, mysql DB as file synchronize infrastructureFile Protocols- Maintain FTP (proftp) function and implement "Home Folder" feature- Maintain WebDav (apache) function and implement "Home Folder" feature- Maintain Samba (smbd) function and implement "Home Folder" feature.- Enhance File permission control function on SambaPrinter Service- Maintain printer (cups) function and release drives patchhttp://qnapsupport.net/qnap-uygulamalari/qnapa-ups-printer-upnp-modem-baglamak/usb-printer/PPPoE- Develop PPPoE service (pptp, pppd)https://www.qnap.com/hu-hu/how-to/tutorial/article/how-to-connect-a-qnap-nas-to-the-internet-through-pppoeRecycle Bin- Implement recycle bin (libtrash) function on several protocol: FTP, File Station, Samba and WebDav
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Senior Software Engineer4Ipnet Nov 2008 - Oct 2011台灣 臺北市 臺北市Design and develop Gateway and Wireless AP function including- L2 firewall- DHCP- LDAP- Boot loader- Wireless API / Driver maintain- iptable and ebtable
Frequently Asked Questions about 周逸群
What company does 周逸群 work for?
周逸群 works for 聯想
What is 周逸群's role at the current company?
周逸群's current role is Firmware Engineer.
What schools did 周逸群 attend?
周逸群 attended 國立台灣大學.
Who are 周逸群's colleagues?
周逸群's colleagues are Lucia Pivarciova, Mercedes Bessa, Mohamad Azmi, Ariz F., Karan Harini, Raul Herrera Ocegueda, Layla (Leishu) Qiu.
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