Salim Gasmi

Engineering leader · 30 years of Internet infrastructure
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About me

Thirty years in Internet infrastructure, nineteen of them as CTO, then large-scale management roles at Meta and HAProxy. Now Director of Data Engineering at IPinfo, I lead data strategy, infrastructure and AI transformation, while staying hands-on, from code to system architecture.

  • Director of Data Engineering - IPinfo
    IP geolocationProbeNet: 1,300+ probesAPI: 1.4T requests/yearData pipelines
    2026present
  • HAProxy Director, ADN Edge - HAProxy
    Global Application Delivery Network100+ PoPsMillions of req/s1+ Tbps DDoS mitigated
    20242 years
  • Production Engineering Manager - Meta, London
    Instagram CI/CD500K+ serversAds database: 15B+ items3B+ users
    20195 years
  • CTO - SdV Plurimedia
    European MPLS network3 datacentersHigh-availability hostingDDoS mitigation
    200019 years
  • System and Network Administrator - SdV Plurimedia
    UnixPeering manager AS8839Web hostingC / PHPBGP
    19955 years

Also:

My skills

From the terminal to the boardroom

Vision and Strategy

  • Driving AI transformation
  • Delivering high-stakes projects
  • Long-term roadmap and budget ownership
  • Aligning technology with business goals

People

  • International team management
  • Hiring and talent retention
  • Mentoring and team upskilling
  • Crisis and major incident leadership

Technology

  • Architecture: large-scale distributed systems
  • Networking: TCP/IP, routing, BGP, MPLS
  • Edge & CDN: load balancing, caching, TLS
  • Systems: Unix, observability, high availability
  • Data: high-throughput ingestion pipelines
  • Coding: C, Go, PHP, Python, Bash
  • Security: hardening, DDoS mitigation, zero-trust
  • Containers: Docker, Kubernetes
  • AI: agents & automation, LLM APIs, PyTorch
  • Shaders: GLSL, WebGL

In their words

Some feedback I received on LinkedIn

Salim stands out as one of the best managers I ever worked with, exhibiting a rare blend of deep technical understanding with a genuine commitment to nurturing his team.

Razvan AlecsandrescuProduction Engineer · Meta

Salim owns an extraordinary profile as CTO of SdV. His knowledge of the datacenter market, Tier-1 and IP among others is exceptional.

Miguel VilladaSr Consulting Engineer · Arbor Networks

Projects

Tools built over the years, because what I needed didn't exist.

CEmail

Postfix GLD

A lightweight standalone greylisting daemon written in C for postfix, available on Ubuntu, Debian and many other distributions.

ShellDocker

Docker HCD

Docker was missing some high availability features I needed, HCD is a daemon that restarts unhealthy containers, downloaded more than 10,000 times.

PHPNetworkingHTML/CSS

BGPMap

Standard looking glasses were missing fanciness, I opted for a real time graphical BGP paths visualisation.

NetworkingArticle

Visualising RIPE ATLAS Anchor Measurements

An article on how to leverage RIPE ATLAS nodes to enhance your network observability, published by RIPE Labs.

GLSL3D

GPU GLSL Shaders

I always wanted to code GPU GLSL shaders as the programming logic is quite unique and challenging.

JavaScript3D

Three.js old school demos

As a former Amiga scene democoder, I recoded some old school demos using WebGL and Three.js.

CNetworkingWindowsReverse Engineering

L2WH Lineage II Network Sniffer
(2004-2009)

Reverse-engineered Lineage II's encrypted network protocol with zero documentation from NCSoft. Real-time packet capture, decryption and parsing to extract mob data, drop rates, item stats and XP metrics. Used by thousands of players worldwide, tolerated by NCSoft, and commercially acquired at end of life.

CAmigaOS

ClassAction for AmigaOS
(1994-1998)

ClassAction is a file manager for AmigaOS, written between 1994 and 1998, it was quite popular by that time.

Contact me

A project, a technical question, or just want to talk? Reach me by email or on LinkedIn.