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Description of the mission

The fashion industry is responsible for 5–10% of global greenhouse gas (GHG) emissions. As climate pressure grows, fashion companies need carbon tools built for their reality, not generic platforms.

Carbonfact is the Environmental Intelligence Platform for textile and fashion. We turn messy business data into environmental intelligence so brands can measure, model, reduce, and report on their impact with confidence.

We've raised $17M from top-tier investors including Alven, Headline, and Y Combinator, and we're trusted by brands like Carhartt, GANNI, On, Burton, Armedangels, Jack Wolfskin, and many more.

Analytics Engineer at Carbonfact

Our platform is organized around four pillars: Collect customer data through custom connectors, Measure impact from a single process to an entire brand, Reduce footprint through simulation tools and Report with audit-ready, regulation-compliant outputs.

As our first Analytics Engineer, you will own the layer that makes our numbers trustworthy. The footprint a customer sees, the KPIs our team steers on, and the data our AI agents query all flow through one metrics system. Your mission is to make sure data quality issues never reach customers.

We are scaling our teams, AI is accelerating our pace of innovation, and our data stack has grown faster than its ownership:

Our warehouse transformations run on lea, an open-source framework born at Carbonfact, whose creator has since moved on.
Engineering has been maintaining a metrics layer that belongs with Data.

You will join the Data team as an individual contributor, reporting to Félix, our Head of Data. You will own the metrics system and work daily with Engineering, Data Science, and Product to keep every number consistent, tested, and documented.

Already on your desk

Real items from our wishlist - the kind of work waiting for you:

One factory, three data sources. Factories share data through our suppliers platform, brands through the platform, and our parsing layer extracts factory information from customer files. You design the model that reconciles all three, so cross-brand factory analysis becomes one clean query.
Converge the sources of truth. The same metric can currently be computed in up to five places! You fold them into one governed semantic layer for the platform, the team, and our AI agents.
Guard the per-account view. A methodology change might look immaterial as a whole while capable of moving one customer's footprint by double digits. You turn per-customer checks into a pre-merge gate, with a cost and runtime budget you define.
Documentation as a build artifact. Our warehouse has 276 SQL models and no column dictionary. Our parsing layer already generates docs from code; you bring the same discipline to the metrics layer, for humans and AI agents.

What you will do

Own the SQL transformation layer that materializes our metrics in BigQuery: guidelines, contracts, tests, monitoring, and CI gates.
Build and govern the semantic layer that becomes the single source of truth for the platform, internal KPIs, and AI tools.
Implement and test the data contracts behind company KPIs, and challenge definitions that would not survive an audit.
Partner on product bets: define success metrics that survive scrutiny and implement their tracking on governed models.
Treat agent-facing tooling as part of the data layer: Claude skills, MCP tools, and generated dictionaries.
Detect bad data early and route failures to the right owner, before a customer ever sees them.

**What you won't do**

Be the ad-hoc query desk. This role exists to converge and govern the metrics system, not answer every one-off number question.
Build dashboards all day. Dashboard-first BI is explicitly not the job.
Decide alone what metrics mean. Domain experts own the meaning; you own the engine, guidelines, and checks that keep definitions honest.
Build heavy ETL. Fivetran handles ingestion and GitHub Actions orchestrates transformations - no Airflow, no Spark clusters.

Profile

Who you are

Three traits matter more to us than any tool on your CV:

You thrive on complexity, yet manage to break things down to make them clear. The fashion industry and carbon accounting in general are more complex than it seems. We’re aiming to give clear environmental insights to customer with various degrees of data proficiency.
You have owned something, not just contributed to it, and were accountable when it broke.
You treat documentation as a build artifact: generated from source, tested and versioned.

And concretely:

4+ years of professional experience in analytics engineering or an adjacent data role
SQL proficiency on a columnar warehouse, BigQuery ideally
You have run a transformation layer in production, not just contributed models to one
Comfortable outside dbt: we run our own open-source framework and value tools chosen for needs, not trends (but why not move to dbt?)
Enough Python to be at ease in the engine and scheduled jobs - you are not SQL-only
You have a test-driven mindset
You communicate well in English and can walk non-data colleagues through a data decision

Bonus points:

Semantic layer work: MetricFlow, Cube, LookML, or the Open Semantic Interchange direction
BI-as-code tools like Rill
Data-as-product experience where numbers ship to customers; audited or regulatory reporting is a strong plus
GitHub Actions as an orchestrator

If you match most of this but not every line, apply anyway. We hire people, not skills.

Carbonfact

On a mission to decarbonize fashion. At Carbonfact, we believe that accurate data is the foundation of sustainability we help brands understand their carbon emissions and how they can act on them.

💡 Transition partners

The mission of this structure is to help companies and citizens improve their environmental and social impact. For example, CSR consulting, training, raising awareness of transition issues, media, etc.

Website
Company
Between 15 and 50 persons
Fashion

Carbonfact did not yet communicate its impact measurement.

This structure did not communicate to us the labels or certifications that it was able to obtain.

Carbonfact

On a mission to decarbonize fashion. At Carbonfact, we believe that accurate data is the foundation of sustainability we help brands understand their carbon emissions and how they can act on them.

💡 Transition partners

Website
Company
Between 15 and 50 persons
Fashion

Carbonfact did not yet communicate its impact measurement.

This structure did not communicate to us the labels or certifications that it was able to obtain.

More than 100 training courses and programs

Train yourself on a wide range of key topics: CSR and sustainability in business, third places, collective intelligence, energy renovation, skills assessment and much more!

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