Freelancer logó
Bejelentkezés Regisztráció
Adjon ki projektet
FEDEZZEN FEL
Linux
Network Administration
Python
Software Architecture
System Admin
Profil borítóképe
Mostantól követi felhasználót
A felhasználó követése sikertelen.
Ez a felhasználó nem engedélyezte mások számára, hogy kövessék.
Ön már követi ezt a felhasználót.
Tagsági előfizetésével csak 0 követésre van lehetősége. Itt fejlesztheti tagságát.
Nem követi a továbbiakban felhasználót
A felhasználó követésének kikapcsolása során hiba lépett fel.
Sikeresen ajánlotta felhasználót
A felhasználó ajánlása során hiba lépett fel.
Valami hiba történt. Kérjük, frissítse az oldalt és próbálja újra.
E-mail cím hitelesítése sikeres.
Felhasználó avatár

Khanh T.

@khanhtd

annual-level-three.svgverified-v2.svgpreferred-freelancer-v3.svg
5,0
119
7,3
7,3
100%

Python | Rust | Linux | Automation | Integration

$40 USD / óra
・
zászlója
Vietnam (6:24 du.)
・
Ekkor csatlakozott: december 23, 2012
$40 USD / óra
・
A professional and skilled programmer with in-depth understanding of computer systems through 20 years of extensive knowledge accumulated from systems, infrastructure, security to software and applications. Expertise in utilizing Python, Rust and their ecosystems with experiences in building automation systems, socket services, performance-driven software and web applications. Software components design following OOP and DRY principles, technical writing, research proficiency, problem-solving and fast-learning abilities are my other main advantages. Service List: • Web Applications / REST and RESTful APIs • Command-Line Interface (CLI) Software • Automation Tools / Background Services / Socket Services • Web Scraping / Crawling • Parsing / Analyzing Data • Linux Systems and Services Troubleshooting • Docker, Kubernetes, CI/CD, DevOps Solutions Major Skills: Python, Flask, Django, Selenium, Rust, Serde, Tokio, Tungstenite, JavaScript, React.js, jQuery, HTML, CSS, Bootstrap, SQL, NoSQL, REST(ful) API, Linux OS, Shell, Docker, QEMU/KVM, SysAdmin, DevOps.
Hitelesítések
Határidőre
100%
Költségvetésen belül
98%
Elfogadási arány
100%
Ismételt megbízási arány
45%
Freelancer Linux Developers Vietnam
Az összes Linux Developers mutatása itt: Vietnam

Portfólió

Portfólió

4557178
A service running in the background which screens and filters network packets contain chat messages which are sent to the server through WebSocket protocol. The filtering engine did its jobs by referring to a predefined rule-set, also asking third party public services for any general blocking patterns. There was also a limiting engine equipped to prevent users from overusing or exploiting the chat servers system. This service is a multiprocessing program written in Python, utilizing libnetfilter_queue kernel shared library, iptables and running in Linux environment. It was able to serve up to 15K concurrent users at a same time.
Packet Filtering with Netfilter
4561106
Search for the same products as what you are providing or selling, do a comparison to find out which product is lowest in price. In order to accomplish this, the tool needs to access and login to your store (or e-commerce) website as well as connecting and being granted to "eBay API". This tool was built with respect to the eBay "API Call Limits", their usage guidelines and site policies. It was completely written in Python, directly run from the Linux console (or command line) or triggered by a Linux crontab service. Its running progress was kept in log files for easily tracking and/or debugging.
eBay Lowest Price Search
3323835
Use BASH scripting language to: * Setup ad configure StrongSwan VPN automatically * Enable RADIUS authentication by integrating StrongSwan with freeradius package, done during StrongSwan setup and configuration
Automating VPN setup with RADIUS authentication
3150523
EQC is an engine used for routing SMTP messages based on user reputation, IP healthiness and email volume sent. It's also having some features: * Merge email before sending * Probe sending to priorly verify campaign reputation before delivering whole campaign * Reduce the rotation of IPs by allocating most frequently used IPs for user * Warm-up IP during sending periods
Email Quality Control
1266654
- Map drivers and printers to many group of users, each group have different network folder and printer shares to match their specific using purposes.
Group Policies setup to map network drives & printers
1294264
Environment: - Active Directory in mix of Windows 2000 and 2003 - Exchange 2003 with several hundreds of mailboxes - Current providing services: OWA, Outlook MAPI, ActiveSync Transition Steps: - Prepared AD and installed Exchange 2010 - Configured Exchange 2010 to coexist with the old one - allow service access in case half of users were in 2003 and the other half in 2010 - Configured mail routing between two systems and made new Exchange system be publicly acceptable for sending out emails over internet - Transitioned all mailboxes and stuffs to new Exchange 2010
Transition Exchange 2003 to Exchange 2010
4557178
A service running in the background which screens and filters network packets contain chat messages which are sent to the server through WebSocket protocol. The filtering engine did its jobs by referring to a predefined rule-set, also asking third party public services for any general blocking patterns. There was also a limiting engine equipped to prevent users from overusing or exploiting the chat servers system. This service is a multiprocessing program written in Python, utilizing libnetfilter_queue kernel shared library, iptables and running in Linux environment. It was able to serve up to 15K concurrent users at a same time.
Packet Filtering with Netfilter
4561106
Search for the same products as what you are providing or selling, do a comparison to find out which product is lowest in price. In order to accomplish this, the tool needs to access and login to your store (or e-commerce) website as well as connecting and being granted to "eBay API". This tool was built with respect to the eBay "API Call Limits", their usage guidelines and site policies. It was completely written in Python, directly run from the Linux console (or command line) or triggered by a Linux crontab service. Its running progress was kept in log files for easily tracking and/or debugging.
eBay Lowest Price Search
3323835
Use BASH scripting language to: * Setup ad configure StrongSwan VPN automatically * Enable RADIUS authentication by integrating StrongSwan with freeradius package, done during StrongSwan setup and configuration
Automating VPN setup with RADIUS authentication
3150523
EQC is an engine used for routing SMTP messages based on user reputation, IP healthiness and email volume sent. It's also having some features: * Merge email before sending * Probe sending to priorly verify campaign reputation before delivering whole campaign * Reduce the rotation of IPs by allocating most frequently used IPs for user * Warm-up IP during sending periods
Email Quality Control
1266654
- Map drivers and printers to many group of users, each group have different network folder and printer shares to match their specific using purposes.
Group Policies setup to map network drives & printers
1294264
Environment: - Active Directory in mix of Windows 2000 and 2003 - Exchange 2003 with several hundreds of mailboxes - Current providing services: OWA, Outlook MAPI, ActiveSync Transition Steps: - Prepared AD and installed Exchange 2010 - Configured Exchange 2010 to coexist with the old one - allow service access in case half of users were in 2003 and the other half in 2010 - Configured mail routing between two systems and made new Exchange system be publicly acceptable for sending out emails over internet - Transitioned all mailboxes and stuffs to new Exchange 2010
Transition Exchange 2003 to Exchange 2010
Változtatások elmentve
5.0 · 119 Reviews
Értékelések
C
Project for Khanh T. • $100 USD
very good excellent!!!!!!!!!!!!!!!!!!
Closed User
@cafecapsuleone
•
zászlója
,
•
5 évvel ezelőtt
Megosztás
Felhasználó avatár
Project for Khanh T. -- 19/04/28 10:10:20 • $300 USD
I highly highly highly recommend it
Rizik A.
@zaid27
•
zászlója
Amman, Jordan
•
6 évvel ezelőtt
Megosztás
Felhasználó avatár
Project for Khanh T. -- 4 • $85 AUD
Awesome job , always great quality of work . beyond expectation!
Web D.
@webdeveloper256
•
zászlója
melbourne, Australia
•
6 évvel ezelőtt
Megosztás
Felhasználó avatár
Build a tool for scheduling hours in a web based calendar • $1 025 USD
excellent as usual always delivering on time and clean code
Juan I.
@juanc2503
•
zászlója
round rock, United States
•
6 évvel ezelőtt
Megosztás
A
Project for Khanh T. -- 2 • $25 USD
Still the best freelancer I've come across here, and very good value for money. Khanh is a high integrity and commitment freelancer.
Anton D.
@adpatza
•
zászlója
Bryanston, South Africa
•
6 évvel ezelőtt
Megosztás
Tapasztalat
Senior Software Engineer (Remote)
jún., 2022 - dec., 2024
•
2 év, 6 hónap
Speediatech INC
jún., 2022 - dec., 2024
•
2 év, 6 hónap
● Acted as chief engineer in charge of the development of company products, business applications, APIs, and services. ● Performed regular updates and optimizations to continuously enhance product quality and performance, helping to maintain product competitive advantage and meet customer expectations. ● Evaluated and developed optimal solutions for automating product deployment, infrastructure management, and systems integration.
zászlója
Liberty Hill, United States
jún., 2022 - dec., 2024
•
2 év, 6 hónap
Senior Systems Software Engineer (Remote)
jún., 2019 - máj., 2022
•
2 év, 11 hónap
VirtualShield LLC
jún., 2019 - máj., 2022
•
2 év, 11 hónap
● Developed custom tools and contributed to programming efforts by writing code, performing reviews, and refactoring. ● Developed solutions by leveraging microservices or monolithic deployments. Designed well documented services and tools which could be operationalized. ● Leveraged both commercial and open source tools/software to drive impact for the business. Evaluated new technologies and worked with leadership to prioritize deployment in alignment with business requirements.
zászlója
Los Angeles, United States
jún., 2019 - máj., 2022
•
2 év, 11 hónap
Python Professional (Freelance)
jan., 2017 - jún., 2019
•
2 év, 4 hónap
Freelancer.com
jan., 2017 - jún., 2019
•
2 év, 4 hónap
● Specialized in developing Python software and applications, data analysis tools, Linux automation and deployment scripts, CI/CD solutions. ● Successfully completed more than 120 projects on Freelancer with 100% completion, 100% on-time, and 98% on-budget rates. ● Maintained a 5-star rating and one of the top preferred freelancers on Freelancer by consistently delivering outstanding works that exceeded client expectations.
jan., 2017 - jún., 2019
•
2 év, 4 hónap
Végzettségek
Microsoft Certified Systems Engineer: Security
2008
Microsoft
Credential ID: #3561306
2008
CompTIA Linux+
2008
CompTIA, Inc.
Credential ID: #COMP001007993579
2008
CompTIA Security+
2009
CompTIA, Inc.
Credential ID: #COMP001007993579
2009
Képesítések
P
Preferred Freelancer Program SLA
Basic Numeracy - Level 1
Basic Numeracy
US English - Level 1
US English
Unix - Level 1
Unix
Python Level 1
Python
Meghívó sikeresen elküldve!
Köszönjük! E-mailben elküldtük a linket, melyen átveheti ajándék egyenlegét.
E-mailje elküldése során valami hiba történt. Kérjük, próbálja újra.
Freelancer logó Hungary / Magyar
Súgó és Ügyfélszolgálat

Szabadúszó

Kategóriák Projektek Versenyek Szabadúszók Enterprise Innovációs kihívások AI fejlesztés Tagság Előnyben Részesített Szabadúszó program Projektmenedzsment Helyi munkákPhoto Anywhere Bemutatóterem API fejlesztőknek Legyen Hitelesített Asztali alkalmazás

Bemutatkozás

Rólunk Így működik Biztonság Befektetőknek Oldaltérkép Történetek Hírek Csapat Elnyert díjak Sajtóanyagok Karrierlehetőségek

Feltételek

Adatvédelmi nyilatkozat Felhasználási feltételek Szerzői jogi szabályzat Etikai kódex Díjak és költségek

Partnerek

Escrow.comLoadshiftWarrior Forum

Alkalmazások

Apple App Store logóGoogle Play logó
A vágólapra másolás sikertelen volt. Kérjük, jogosultságai módosítását követően próbálja meg újra.
Vágólapra másolva.

Regisztrált Felhasználók

Összes Közzétett Munka

Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)

Copyright © 2025 Freelancer Technology Pty Limited (ACN 142 189 759)