Javier Guerra
Staff Engineer at Kong Inc.
Peru
Summary
🤩
Rockstar🎓
Top SchoolJavier Guerra is a Staff Engineer with 16 years of experience specializing in low-level systems work delivered in high-level languages, currently advancing cloud-native API gateway technology at Kong. His contributions span high-performance networking (Snabb) and core infrastructure—adding VFIO, checksum offload, jumbo-frame handling, and MAC abstractions—and improving Kong’s rate-limiting, routing, and plugin architecture for production-grade deployments. A former Cloudflare systems engineer and long-time open-source contributor, he pairs C and Go expertise with practical system design, including integrating uWSGI with Ceph RADOS for scalable storage. Based in Peru, Javier combines deep packet- and storage-level insight with production API gateway engineering, often surfacing subtle protocol and performance fixes that reveal a strong attention to correctness under load.
16 years of coding experience
9 years of employment as a software developer
María Reyna de San IsidroPontificia Universidad Católica del Perú
English, Spanish
Stackoverflow
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Github Skills (72)
reverse-proxy10
uwsgi10
python10
vfio10
c1110
c1710
lua10
floating-point10
linux10
api10
type-conversion10
database10
rate-limiting10
sqlite10
apidoc10
Programming languages (17)
Github contributions (5)
Kong/kong
Aug 2019 - May 2022
🦍 The API and AI Gateway
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 300 reviews, 137 commits in 2 years 8 months
Contributions summary:Javier contributed to the Kong API Gateway project by implementing and testing rate-limiting features. They wrote tests to verify the expiration of rate-limiting counters over time. Furthermore, the user implemented a router feature to support matching ports in the Host header, improving routing capabilities. They also made significant changes related to the Go plugin architecture, including the introduction of external plugin protocols.
aiapi-gatewaymicroservicesapi-managementserverless
snabbco/snabb
Nov 2013 - Jun 2015
Snabb: Simple and fast packet networking
Role in this project:Back-end Developer & System Architect
Back-end Developer & System ArchitectContributions:82 commits, 15 PRs, 107 comments in 1 year 7 months
Contributions summary:Javier implemented and refactored core packet networking functionality, including VFIO and checksum offloading features. They designed and implemented a MAC address object, and filled packets with hex strings. Their work demonstrates a focus on low-level network performance and efficient packet handling within the context of a user-space networking framework. The user made multiple contributions to improve the driver initialization sequence and to handle jumbo frames.
networkingluajituserspace-driveruserspace-networkingnfv-framework
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