Juntao Peng
Software Dev Engineer II at Amazon
Mountain View, California, United States
Summary
👤
Senior🎓
Top SchoolJuntao Peng is a Software Development Engineer II with eight years of experience building large-scale network and service-mesh infrastructure at Amazon after earning an MEng in EECS from UC Berkeley. He designs and ships low-level systems across DNS, traffic routing, observability, and cloud platforms, owning cross-team initiatives that run at significant scale. Notable recent work includes integrating a BigMesh proxy agent into ECS-Fargate/ECS-EC2, crafting a dual-layer egress proxy using iptables and DNS hijacking, and inventing a heuristic to reduce IP fragmentation on AWS Nitro NICs. Pragmatic and action-biased, he pairs systems-level rigor with measurable operational improvements—e.g., a metrics observability stack that cut costs by ~70% and a Gzip-enabled CloudWatch client that shrank bandwidth by 80%. Based in Mountain View, he also brings research experience in assistive tech and adversarial-visual systems, reflecting an unusual blend of production systems engineering and accessibility-focused research.
8 years of coding experience
4 years of employment as a software developer
Master of Engineering - MEng Electrical Engineering and Computer Science, Master of Engineering - MEng Electrical Engineering and Computer Science at University of California, BerkeleyBachelor of Engineering - BE Computer Software Engineering, Bachelor of Engineering - BE Computer Software Engineering at East China Normal University
English, Chinese, Shanghainese
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (36)
signalr-core10
signalr-client10
signalr9
azure-signalr9
azure-machine-learning7
data-explorer7
azure6
notebook6
pintos6
azure-data-explorer6
qemu6
ubuntu6
sdk5
machine-learning5
benchmark5
Programming languages (9)
Github contributions (5)
UncooleBen/MeetHere
Dec 2019 - Feb 2020
Contributions:1 PR, 96 pushes, 1 branch in 2 months
UncooleBen/AzureSignalR-samples
Oct 2020 - Dec 2020
Code samples for Azure SignalR
Contributions:113 pushes, 4 branches in 2 months
signalrazure-signalrazure
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