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September 1, 2023


Remote / Paris



About Carbonfact

The fashion industry is responsible for approximately 5% of global greenhouse gas emissions (GHG). More and more companies are using Carbon Management Platforms to measure and create reduction plans. However, most of these solutions are generalist, so they are not tailored for a fashion brand, which requires detailed insights on the impacts of materials, manufacturing processes, or the “life cycle analysis” impact of its products.

This is why we developed Carbonfact, the only Carbon Management Platform dedicated to the textile and fashion industry. Our platform automates life-cycle assessment at the product level, enabling brands to gain a high resolution of their Scope 3 emissions and model out product-level change on the company’s broader environmental trajectory.

Brands and fashion groups are already using Carbonfact (e.g. New Balance, Allbirds, AdoreMe, ArmedAngels, etc.) and we raised $2 million from Y Combinator, Alven, and angel investors in 2021.

Why do we need to hire

We launched our offering less than a year ago and are experiencing significant sales growth, including securing a major customer with over $1 billion in revenue and discussing with even larger ones. We clearly sense the market demand for what we're building and we have lots of ideas we would love to build to help brands reduce their carbon footprints faster!

We started building simulation and modeling tools that enable brands to estimate the impact of design or supply chain changes on their future catalog, but we're just at the beginning. To help design teams, we could also incorporate cost elements and include automated optimization to suggest the best combinations of materials and suppliers to optimize both for carbon and cost. And in not so long, we'll also want to optimize by taking into account other indicators (the PEF standard defines 16 of them).

We have opportunities to open by building relationships with suppliers. Brands have to deal with lots of suppliers (1000+ for the big ones), and collecting the right data from the supplier is critical to avoid survey fatigue on the supplier end. We can build tools to help the brands collect the right information at the right time, so that they ask the questions that can really make a change.

Finally, we'll have a lot on our plate with our maturing market: upcoming regulations will make our LCA calculation engine a software that must be highly reliable, we will probably have to support different calculation methodologies (we already know that France will be slightly different from EU's) and building the key components our customers will expect from their Carbon Management Platform: carbon accounting and reporting, environmental labeling, etc.

What you should be excited about

Working on climate!

First of all, we expect you’re excited about working on climate-change solutions and being part of decarbonizing the fashion industry! There are not that many actors that can help the fashion industry reduce carbon emissions and we believe Carbonfact can avoid hundreds of millions of tons of GHG every year. 

The team

We believe that a strong small team can achieve a lot. We knitted a team of committed people with experiences in multiple successful companies (Airbnb, Alan…) and brought the best practices and processes from those experiences to build the company. We are eager to share it with you, and learn from you.

Engineering challenges

We have interesting problems to solve, as we are transforming the way the industry is doing Life Cycle Analysis. As of now it’s most often a slow and laborious process, requiring getting lots of data points from the supply chain and waiting months before getting results for a few products. We are making this a few weeks for thousands of products.

To accomplish this, we are reinventing it: collecting data, modeling products, calculating results, and providing cutting edge interfaces to make this data understandable in a glance.

We combine pragmatism, strong data and software engineering skills to focus on what matters most and help our customers efficiently take action to reduce their product footprints.

Our company operating system

We have a hybrid and international company: part of the team meets every week in our Paris office and a few team members are full-remote (Max in France, Bahareh in Berlin and Lidia in Amsterdam). 

We favor asynchronous and written communication (especially for knowledge management and decision making) and use synchronous online or in-person communication for problem solving and idea generation, and the few weekly meetings to maintain some bonding (less than 3h a week).

We complete that with 3-4 retreats a year where we gather the full team and use it as an occasion to create a stronger team bonding and work on the next 3-6 months challenges.

Our principles

Idealist pragmatists

Climate change requires diverse approaches. We identify ourselves as idealist pragmatists. Our role is to give better information to fashion and textile companies so they reduce their emissions. To do so, we partner closely with our customers. That work can be grunt and tedious but we believe it is our role and how we effectively cut carbon.

Carbon above money

We founded Carbonfact to make a tangible impact. Capitalism, regulation and software are tools. Our goal is decarbonization. As a result we will always trade off carbon impact over short-term financial gains.

Own it

Carbonauts are shareholders. Not just employees. We act as company owners, constantly working to improve our customers’ experience. We value accountability, rely on each other and never drop the ball.


The carbon problem is complex. We bring simple solutions to our customers. We choose the most straightforward path. We avoid complication. We believe in the efficiency of small organizations.

We maintain a high bar in our communications. We write clearly and concisely. Our communication is easy to understand for both internal and external stakeholders, even when they have limited context.

Low Ego

We encourage a culture of feedback and a personal growth mindset. Being open to change and new ideas is essential. We run a complete performance evaluation based on peer feedback twice a year that allows team members to identify their strengths and areas for improvement.

Our technology stack

Our customer-facing web app is built in TypeScript using React (NextJS) and a NestJS / Prisma backend, but we are flexible (and still moving) regarding frameworks and technologies.

The platform is also built on a strong data engineering foundation developed by Max using Python and BigQuery. It handles both the top of the funnel (collecting, normalizing, and enriching data) and the bottom (the views consumed by our customer-facing SaaS web app and used for the data analyzes we use and share with our customers). You can check a piece of our data engineering platform with our first open-source project, Lea.

We strive for a lean mindset, so we favor buying over building for non-core parts of our product. Our infrastructure is thus built on many PaaS and SaaS solutions (e.g., Heroku, Vercel, Defer, Postmark, Retool).

What will be your role

You will take a key position in our early-stage software engineering team and join Victor (Founding Software Engineer) and Romain (CTO & Co-founder). You will also work closely with Max (Head of Data), since data is key in our solution, and Martin (Co-founder, leading Product, Data and Science).

Your end goal will be the same as everyone in the company: making our customers delighted and helping them reduce their environmental impacts.

Your potential responsibilities include:

  • Solution Design: Understand the customers core problems and collaborate with Martin and Lucien (Designer) to devise pragmatic, reliable and maintainable solutions.
  • Software Development and Maintenance: As a fullstack engineer, you’ll contribute to our software over its whole life cycle, from feature development and bug fixes to refining our CI/CD pipeline and production infrastructure.
  • Technical Improvement: Play a proactive role in enhancing our technical foundations and best practices.
  • Collaborative Innovation: Actively contribute to shaping the projects which get worked on during our 6-week cycles, bringing forth and implementing innovative ideas aligned with our goals and solving customer needs.

What we are looking for

We’re looking for an experienced full-stack software engineer, capable of working on all parts of our system (backend, frontend, cloud), thus being autonomous to maintain and build new features.

We are looking for a broad range of experience (3-10 years of experience), as our key priority is to find someone with key attributes, more than skills:

  • Drive: You take ownership of your projects and do your best to get them to success.
  • Customer-driven: You are focused on what brings value to the customers.
  • Pragmatic Problem-Solver: You favor simple solutions, even to complex problems.
  • Reliability: You can be trusted with your tasks, you collaborate effectively.
  • Mission-driven: The goal of our product and company matters to you.

You should be eager to work with our stack. Even if you don’t have significant experience with it, but you proved to be able to ramp-up quickly on a new stack, you should apply!

We need someone who thrives in an early stage environment: small team, fast-moving, and with lots of ownership. Significant experience in an early stage environment is an excellent signal.

You should be comfortable working in an international, remote, and mostly asynchronous environment. Proficiency in English and French is required (we love accents though).

You can work full-remote as long as you’re able to come to the office on regular occasions (e.g. 2-3 days a month, or a week every few months). You can also work from our office in Paris (close to Gare de l’Est), where a good part of the team is coming 2-3 days a week.

Work environment and compensation

We determine the compensation package (salary + equity) based on an internal grid which is shared with employees. At the time of hiring, we’ll determine your level based on the position, your track-record and experience. You will then be promoted to higher levels based on your performance and your impact on the company. Each level is associated with a predetermined compensation.

For this position, you can expect a salary between €50k and €65k for levels. You can also expect equity with a low strike price and employee-friendly exercise rights.

In line with our efficient work environment, we’ll do our best to provide you with the best tools available, from hardware to software (e.g. IDEs, GitHub Copilot, etc.).

We’ll cover 100% of your health insurance with Alan at the best coverage level.

How to learn more about us

Application and interview process

Please fill in the form to let us know more about you if you’re interested!

Before starting the process, we can have a 30’ call to ensure our searches align. Then, the interview process generally looks like this:

  • Exploratory Call: 60-75 min, visio, with Romain, to understand your motivations and make sure it fits with the position.
  • Validation Interview: 2x 1h, visio, with Romain, then Victor, to start evaluating your aptitudes and skills. You will be given a few questions to prepare before the interview, some to be replied to by email before the interview (this is not a technical test).
  • Focused Interview: 3h, if possible as an in-person session at the office. We will go through several kinds of sessions (technical questions and discussions, collaborative architecture design sessions, pairing or code review sessions, etc.).
  • Values Interview 1h, visio, with Martin, to validate your fit with the company values.
  • Reference Calls: We will reach out to 3 persons you worked with and we identified together during the Validation Interview.

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