François-Guillaume Fernandez
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François-Guillaume Fernandez Email & Phone Number

Working on something new at Stealth Startup
Location: San Francisco, California, United States 12 work roles 4 schools
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✓ Verified May 2026 3 data sources Profile completeness 86%

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Role
Working on something new
Location
San Francisco, California, United States
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François-Guillaume Fernandez is listed as Working on something new at Stealth Startup, a company with 70 employees, based in San Francisco, California, United States. AeroLeads shows a matched LinkedIn profile for François-Guillaume Fernandez.

François-Guillaume Fernandez previously worked as Founder & CEO at Quack Ai (Yc S23) and Co-Founder @ Quack AI at Quack Ai (Yc S23). François-Guillaume Fernandez studied at Y Combinator.

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Stealth Startup

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About François-Guillaume Fernandez

My name is F-G (short for François-Guillaume), I'm the founder & CEO of Quack AI, a Y Combinator-backed startup dedicated to solving critical engineering delivery challenges for software teams (upcoming rebranding & launch). With a strong background in machine learning and automation, I specialize in developing data-driven solutions that optimize engineering workflows. Previously, I co-founded Pyronear, an NGO focused on wildfire detection using deep learning on Raspberry Pi, and have contributed extensively to open-source projects like PyTorch.At Quack AI, we're gearing up for our product launch and actively expanding our team. We're looking for talented software engineers and AI experts passionate about building impactful solutions and driving operational excellence.If you're interested in solving those challenges for your engineering organization or exploring career opportunities with us, let's connect!Skills: Python, C++, PyTorch, TensorFlow, OpenCV, FastAPI, Machine Learning

Current workplace

François-Guillaume Fernandez's current company

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Stealth Startup
Stealth Startup
Working on something new
Paris, FR
Website
Employees
70
AeroLeads page
12 roles

François-Guillaume Fernandez work experience

A career timeline built from the work history available for this profile.

Founder & Ceo

Current

Paris & San Francisco

We make software delivery more reliable for ambitious engineering teams

Jun 2024 - Present

Co-Founder @ Quack Ai

Paris, Île-de-France, France

We turn your team insights into a portable plug-and-play context for code generation & code review

Jan 2023 - Jun 2024

Co-Founder

Current

Paris, Île-de-France, France

Non-profit organization working towards forest preservation from wildfires using deep learning on embedded systems.My main efforts are focused on:- Computer Vision: developed a wildfire detector deep learning model optimized for low-power devices.- Back-end: built our in-house API for unified & secured communication between our field detectors and.

Sep 2019 - Present

Founder In Residence

Paris, Île-de-France, France

Sep 2022 - Dec 2022

Senior Research Engineer

Paris, Île-de-France, France

  • Automatic document visual processing service powered by deep learning (YC W21).My main contributions revolve around:
  • Research: working on Computer Vision & NLP approaches for document analysis in a memory-savy context.
  • Open-source: developing the company's deep learning library for OCR-related tasks.Tools: PyTorch, TensorFlow, Docker
Dec 2020 - Apr 2022

Research Engineer

Paris Area, France

  • Intake tracking service through food picture recognition named in the Top 30 of Station F startups in 2019 (Facebook Startup Garage program).The research team goal is to develop algorithms for localization.
  • Research & implementations: implementing new deep learning architectures and optimizers for consistent performance improvement.
  • Software development: developed new training and inference pipelines (respectively 3-fold and 35% speedup)
  • Data quality: created a new process for efficient pixel-wise labelling.Tools: Python, PyTorch, Caffe, Bash, Docker, Linux
Mar 2018 - Dec 2020

Data Analyst

Paris Area, France

  • Internship within the Sales & Operations team - EMEA Region
  • Single-handedly developed an R-based tool providing analyst & business roles with on-demand reports
  • Addressed client report requests and conducted long-term analyses for performance improvement
  • Actively contributed to the company R resources (cluster data access, data visualization, etc.)
  • Tools: R, SQL, Tableau, Hadoop Hive, bash scriptingLeading retargeting company for online advertisement (valued on NASDAQ at 3.3bn$)
Apr 2017 - Sep 2017

Operations Analyst

Sydney, Australia

  • Internship within the Supply Chain team of the Australian office
  • Involved in the business development & supply chain optimisation especially in logistics
  • Projects: opening/extending delivery regions, cost reduction, compensation seeking model, smart fleet allocation tool
  • Tools: Python, R, VBA, Power BIThe company was named Specialist Online retailer of the Year in 2016 at the Grocer Gold Awards, #1 FT1000 fastest growing business over the last 5 years.
Mar 2016 - Aug 2016

Junior Consultant

Ey

Paris Area, France

  • Internship in the advisory branch of the Financial Services Office (FSO)
  • Involved in the performance improvement and data analysis for transformation/structuration projects in the bank/insurance sector
  • Projects: Credit Banking, Mutual & Life Insurance, Government entitiesIn 2016, the team received the P3 Awards as "Financial Advisor of the Year".
Sep 2015 - Feb 2016

Head Of Business Development

Paris Area, France

  • Overseeing market research & client portfolio strategy (+93% in size)
  • Designing new offers (analytics & modelling)The entity was awarded the prize of best French consulting student association in 2010, 2014 and 2017 by BNP Paribas, Alten, Engie and EY.
May 2014 - May 2015

Project Leader

Paris Area, France

  • Led a dozen of projects including for European Commission and the French railway company
  • Carried out data analytics & development projects for government entities, education institutions, start-ups and large tech companies
Sep 2013 - May 2015
4 education records

François-Guillaume Fernandez education

Cpge Pcsi/Psi* ("Classes Préparatoires")

Lycée Jean-Baptiste Say
FAQ

Frequently asked questions about François-Guillaume Fernandez

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What company does François-Guillaume Fernandez work for?

François-Guillaume Fernandez works for Stealth Startup.

What is François-Guillaume Fernandez's role at Stealth Startup?

François-Guillaume Fernandez is listed as Working on something new at Stealth Startup.

Where is François-Guillaume Fernandez based?

François-Guillaume Fernandez is based in San Francisco, California, United States while working with Stealth Startup.

What companies has François-Guillaume Fernandez worked for?

François-Guillaume Fernandez has worked for Stealth Startup, Quack Ai (Yc S23), Pyronear, Entrepreneur First, and Mindee.

How can I contact François-Guillaume Fernandez?

You can use AeroLeads to view verified contact signals for François-Guillaume Fernandez at Stealth Startup, including work email, phone, and LinkedIn data when available.

What schools did François-Guillaume Fernandez attend?

François-Guillaume Fernandez studied at Y Combinator.

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