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Thomas Cottiaux logo | KOTTIO logo KOTTIO
C R E A T I V E

FULL STACK
DEVELOPER

& Data Consultant
MY OFFERSMY PROJECTS
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My Offers

Build Your Digital Product

App / Web App, Tested Prototypes, Landing Page, Data Products

Build Your
Digital Product

From idea to launch.

  • →Strategic clarity through workshops & design sprints
  • →Working products: MVPs, features, or rebuilds that ship
  • →Smart data & dashboards from day one
  • →Compelling storytelling: pitches, presentations, visuals

Teach and Empower

Democratize data and enable your team

Teach & Empower

Upskill business and technical teams

  • →Data literacy & SQL
  • →Modern data pipelines
  • →Product analytics
  • →Data storytelling

Half-day workshops tailored to your needs

Consult and transform

Strategic guidance and implementation for data-driven transformation

Consult & Transform

Integrate data to make better decisions

  • →Strategic consulting & roadmaps
  • →Dashboards & database
  • →Data-driven transformation
  • →AI implementation & automation

project-based or ongoing advisory

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My projects

Melodio

Melodio

FEEL IT, MAKE IT

Melodio

Melodio

FEEL IT, MAKE IT

Modular workspace to explore & create music without imposing guidelines on the creative process. Break down barriers of music theory, give inspiration and axes of exploration through Creative Pods.

Melodio
ReactTypeScriptExpress.jsTailwind CSS+6 more
GitHubDetails
MapShot

MapShot

Discover & Share Photo Locations

MapShot

MapShot

Discover & Share Photo Locations

Mobile-first application designed to help photographers build an ecosystem of filterable artistic locations. Upload photos, vote on moods, reference ideal time, light and affluence.

MapShot
ReactTypeScriptNext.jsMapbox API+3 more
GitHubDetails
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TECH STACK

TECH STACK
DEVELOPER
TypeScriptTypeScript
ReactReact
Next.jsNext.js
Node.jsNode.js
GitGit
HTML/CSSHTML/CSS
TailwindTailwind
PrismaPrisma
DockerDocker
AWSAWS
JavaScriptJavaScript
VercelVercel
FirebaseFirebase
Express.jsExpress.js
MongoDBMongoDB
ViteVite
JestJest
GitHubGitHub
PostmanPostman
FigmaFigma
GitLabGitLab
CypressCypress
AWS EC2AWS EC2
DigitalOceanDigitalOcean
MuralMural
MiroMiro
PythonPython
PostgreSQLPostgreSQL
RR
SQLSQL
dbtdbt
GrafanaGrafana
Power BIPower BI
TableauTableau
MetabaseMetabase
KafkaKafka
AirbyteAirbyte
AWS S3AWS S3
BigQueryBigQuery
RedshiftRedshift
AWS RDSAWS RDS
LambdaLambda
AzureAzure
PostHogPostHog
MixpanelMixpanel
TECH STACK
DATA
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ABOUT ME

Thomas Cottiaux
Building digital product that matters.

My path hasn't been typical. I started as a data engineer helping companies measure their environmental impact through ESG analytics. I built dashboards, ML models, and data infrastructure that powered sustainability at scale. But something was missing.My experience working directly with local social organizations still echoed as the most driven I've ever been. I decided I needed to be close to the people creating change. So I spent years facilitating innovation workshops, led social innovation programs, mentored founders, and learned that for tech to be impactful, it didn't need to be complex—it needed to be centered around people. Today, I combine both worlds. I help creative entrepreneurs, social ventures, and mission-driven organizations turn ambitious ideas into digital realities. Whether it's prototyping an MVP, building data infrastructure that actually helps make decisions, or facilitating design sprints to craft user experiences. I bring technical experience and creative empathy to every project. I've been pursuing photography and music all my life, and I make them an inherent part of my process, bringing stories and aesthetics to the work.If you believe in your project and want to bring it to the next level, let's talk
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THEY TRUSTED ME

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TECHNICAL DETAILS

Lighthouse Performance Metrics

Performance

99/100
Lighthouse Score
  • ✓< 2.5s LCP
  • ✓< 100ms FID
  • ✓< 0.1 CLS

Accessibility

96/100
WCAG 2.1 AA
  • ✓Semantic HTML
  • ✓ARIA Labels
  • ✓Keyboard Nav

Best Practices

100/100
Lighthouse Score
  • ✓HTTPS
  • ✓No Console Errors
  • ✓Secure

SEO

100/100
Lighthouse Score
  • ✓Meta Tags
  • ✓Sitemap
  • ✓Structured Data

Core Web Vitals

LCP - Largest Contentful Paint

Measures loading performance

< 2.5s

Good: < 2.5s | Needs Improvement: 2.5-4s | Poor: > 4s

FID - First Input Delay

Measures interactivity

< 100ms

Good: < 100ms | Needs Improvement: 100-300ms | Poor: > 300ms

CLS - Cumulative Layout Shift

Measures visual stability

< 0.1

Good: < 0.1 | Needs Improvement: 0.1-0.25 | Poor: > 0.25