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Sylvain Kalache Email & Phone Number

Tech PR Consultant | Former entrepreneur and software engineer at Big O PR
Location: Fort Lauderdale, Florida, United States 11 work roles 3 schools
1 work email found @kalache.fr 2 phones found area 415 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email s****@kalache.fr
Direct phone (415) ***-****
LinkedIn Profile matched
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Current company
Big O PR
Role
Tech PR Consultant | Former entrepreneur and software engineer
Location
Fort Lauderdale, Florida, United States

Who is Sylvain Kalache? Overview

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Quick answer

Sylvain Kalache is listed as Tech PR Consultant | Former entrepreneur and software engineer at Big O PR, based in Fort Lauderdale, Florida, United States. AeroLeads shows a work email signal at kalache.fr, phone signal with area code 415, and a matched LinkedIn profile for Sylvain Kalache.

Sylvain Kalache previously worked as Public Relations Consultant at Big O Pr and Co-Founder & President at Holberton School. Sylvain Kalache holds Master, Information Technology from Supinfo.

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{first}@kalache.fr
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Profile bio

About Sylvain Kalache

Sylvain Kalache has dedicated his career to empowering developers. Starting as an SRE at SlideShare and LinkedIn, he co-founded a global school that trained software engineers hired by top-tier companies like Google, Tesla, and Apple. He also co-founded while42, the world's largest network of French-speaking software engineers. Now, as a PR consultant, he helps devtool and infrastructure startups engage their technical audiences.

Listed skills include Bash, Linux, Cloud Computing, Puppet, and 27 others.

Current workplace

Sylvain Kalache's current company

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Big O PR
Big O Pr
Tech PR Consultant | Former entrepreneur and software engineer
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11 roles · 13 years

Sylvain Kalache work experience

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Public Relations Consultant

Current
Big O Pr

I created Big O PR to help tech startups connect with their technical audiences. Our team's unique blend of entrepreneurial drive and software engineering expertise allows us to engage developers without the marketing jargon they hate.We combine developer advocacy with strategic public relations, driving communication and branding success for devtools.

Jun 2021 - Present

Co-Founder & President

Holberton School

San Francisco, California, US

  • Co-founded and scaled a program to train Silicon Valley-grade software engineers, expanding to 25 countries.
  • Designed innovative technology to grade student project-based work using tech industry standards instead of academic ones, ensuring graduates met real-world requirements.
  • Designed the system administration curriculum, enabling students to land SRE roles at Apple, LinkedIn, Tesla, and Facebook.
  • Established and grew the marketing and PR team from the ground up, driving the brand and GTM efforts to acquire students and school franchise partners.
  • Secured coverage in top-tier publications: NYTimes, WSJ, Fortune, FT, TechCrunch, VentureBeat, and Forbes.
  • Built strategic relationships with industry leaders (LinkedIn CEO, Yahoo! Founder, Docker Founder) and cultural icons (NE-YO, Priyanka Chopra, Kelvin Beachum).
May 2015 - Mar 2021

Senior Site Reliability Engineer

Linkedin

Sunnyvale, CA, US

  • Managed our cloud infrastructure, supporting 3+ billion slide views per month.
  • Maintained and managed our Infrastructure-as-Code (IaC) repositories for scalable, reliable deployments.
  • Designed and patented a distributed tool monitoring, analyzing, scaling, and autofixing a system in the Cloud.
  • Led migration of infrastructure from bare metal (SoftLayer) to AWS public cloud, enhancing scalability and performance.
  • Participated in the on-call rotation, providing follow-the-sun coverage during weekdays and 24-hour support on weekends.
  • Contributed to LinkedIn Engineering's communication goals through technical blog posts, public talks, and hosting guests to share engineering insights.
May 2012 - Apr 2015

Technical Advisor

Momo Board

San Francisco, CA, US

2013 - 2015 ~2 yrs

Technical Advisor

Instaply

Lille, FR

Sep 2012 - Aug 2014

Site Reliability Engineer

Linkedin Slideshare

San Francisco, California, US

  • Maintained an infrastructure delivering 300M pageviews/month, which was among the top 100 most visited websites in the world.
  • Designed and implemented a centralized log collection strategy using Fluentd to aggregate, process, and forward logs into a NoSQL database (MongoDB) via a message bus.
  • Participated in the on-call rotation, providing follow-the-sun coverage during weekdays and 24-hour support on weekends.I was part of the team that led the company to be acquired by LinkedIn.
Mar 2011 - May 2012

Typepad Helpdesk

Six Apart

Chiyoda-ku, Tokyo, Japan, JP

Provided technical support for TypePad paying customers, focusing on technical inquiries.

May 2008 - Nov 2011

System And Network Administrator

Intrinsec

Puteaux, Ile De France, FR

  • Part of the team responsible for building and managing our Cloud infrastructure:
  • Racked and configured networking and computing hardware in data centers.
  • Managed 700+ virtual servers serving over 150 customers.
  • Maintained a secure internet access distribution system used by 25,000 end users.
Aug 2009 - Apr 2011

Network Administrator

Carrefour

Massy, Île-de-France, FR

Maintained and improved the local networks of 200 large retail stores and 1,000 supermarkets, managing over 10,000 network devices.

Jul 2008 - Sep 2008

System Administrator

Ambika

Maintained infrastructure hosting CMS websites.

Aug 2007 - Oct 2007

Software Engineer

Carrefour

Massy, Île-de-France, FR

Developed a financial request tool for the CFO.

Jul 2007 - Jul 2007
3 education records

Sylvain Kalache education

Master, Information Technology

Supinfo

Certificate, Management And Marketing Of Information Technology

Dominican University Of California

Computer Science

Hebei University Of Technology
FAQ

Frequently asked questions about Sylvain Kalache

Quick answers generated from the profile data available on this page.

What company does Sylvain Kalache work for?

Sylvain Kalache works for Big O PR.

What is Sylvain Kalache's role at Big O PR?

Sylvain Kalache is listed as Tech PR Consultant | Former entrepreneur and software engineer at Big O PR.

What is Sylvain Kalache's email address?

AeroLeads has found 1 work email signal at @kalache.fr for Sylvain Kalache at Big O PR.

What is Sylvain Kalache's phone number?

AeroLeads has found 2 phone signal(s) with area code 415 for Sylvain Kalache at Big O PR.

Where is Sylvain Kalache based?

Sylvain Kalache is based in Fort Lauderdale, Florida, United States while working with Big O PR.

What companies has Sylvain Kalache worked for?

Sylvain Kalache has worked for Big O Pr, Holberton School, Linkedin, Momo Board, and Instaply.

How can I contact Sylvain Kalache?

You can use AeroLeads to view verified contact signals for Sylvain Kalache at Big O PR, including work email, phone, and LinkedIn data when available.

What schools did Sylvain Kalache attend?

Sylvain Kalache holds Master, Information Technology from Supinfo.

What skills is Sylvain Kalache known for?

Sylvain Kalache is listed with skills including Bash, Linux, Cloud Computing, Puppet, Nagios, Amazon Web Services, Unix, and Ruby.

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