Steven 583 · Dec 17, 2019

Jeffson did a great job on this project. He is very collaborative in working with our team and focused on meeting milestones. Project was successfully completed.

for OpenWRT Engineer

Andrey N · Dec 17, 2017

Jeffson is a very nice engineer and did the job exactly as I wanted. I'm satisfied and recommend him.

for Install & config Mosquitto MQTT broker

Cedric_Tineo · Sep 25, 2016

Jeffson is very competent and professional, proactive and dynamic. He is a very valuable asset in the projects we collaborate on.

for Pair-programming + tutoring in Python

Michael 542 · Sep 19, 2016

Very good experience with this freelancer.

for Perform nslookup & test from Mainland Cn

Karsten_Koenigstein · Apr 21, 2016

This Guru is a Guru. Very professional and fas and high qualityt. Highly recommended.

for WSO2 EMM Server setup

Josef Zak · Apr 03, 2016

The employee is responsible and has very good technical skills and communication.

for Compilation of the Taintdroid 4.3