CTO/Cofounder of a climatech startup

18 days ago
Full time role



Cambridge, UK

Carbon13 is the venture builder for the climate emergency. We are selecting and supporting 1000 entrepreneurs over 5 years who ...

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Job Description

The Opportunity

We're looking for developers to become co-founders of startups that fight climate change.

Software is crucial to how our world can decarbonise the way it travels, eats, makes and powers the world - and developers use Carbon13 to focus only on the biggest problems, to make the biggest impact on emissions.

If you want to fight climate change, then Carbon13 is currently the strongest launchpad for you to build a decarbonisation venture from scratch—we've made pre-seed investments in 20 teams in the last 10 months with another 14 to come in summer 2022.

We only work with early stage founders who can team up with serial entrepreneurs, carbon experts and industry folks (who make up the rest of our cohorts) to build ventures that can reduce emissions by 10 million tonnes a year.

Working on an MVP?

Unlike accelerators, you do NOT need an idea or MVP to join Carbon13, though you can apply with one if you do. You will either be supported to find an idea to develop which can significantly reduce emissions, or join a cofounder/team with strong insights into an emitting industry and lead the implementation of their validated customer pain points.

You may choose to apply your skills to a software idea, or, you may choose to cofound a hardtech or deeptech startup with a scientist/engineer cofounder. Half of our ventures are software, half are science-based/hardtech. You can view our portfolio of ventures at

How does Carbon13 work?

On Carbon13 you are building a startup as part of a cohort of 70 founders. You are not sat in a room being told what you already know. Our programme is designed to 10x the work you're doing, because the planet doesn't have time to waste on theory or incremental ideas.

-Phase 1: Teaming in 6 weeks

You will find a cofounder in the first 6 weeks. As a technical founder you most likely will team up with a founder with a proven track record in founding startups or leadership in emitting sectors. On average 90% of the 70 founders on the cohort form teams within 6 weeks.

-Phase 2: Ideation & Validation in 9 weeks

Your team will intensely work on:

Team strengthening | Carbon intelligence | Rapid iterations of concepts | Business model forming | Prototype testing | Intellectual property | Customer development | Stakeholder development | Behaviour change | Governance | Venture incorporation

-Phase 3: Acceleration in 4 months

After Phase 2, we invest pre-seed into 12-14 ventures. They then use Phase 3 to focus on market, product, business model and strategy to prepare the venture for further seed-stage investment. We also help you look at scaling strategies, managing growth pains and developing a funding strategy.

The next cohort will begin in Cambridge, UK on 19th September 2022. (Apart from nine in-person days in Cambridge, you can do the programme from anywhere in the world.)

Learn More

We are running a series of webinars available to everyone who would like to learn more about Carbon13 and how to build startups with breakthrough solutions for the climate. Our next one for software developers can be found here -

Carbon13 in numbers:

- 50 startups launched since March 2021

- £2.5 million investment across 20 ventures

- 50% of the ventures are software, 50% science or hardware based

- 70 potential cofounders on every cohort

- 35 technical, 35 commercial cofounders

- 90% of each cohort forms a cofounding team within 6 weeks

- 100s of domain experts, carbon experts, entrepreneurs in residence

- 20th September, the start date for the next cohort

- 10 million tonnes of emissions every year. We only launch startups that have the potential to reduce emissions by 10 million tonnes.

We caused climate change. Let's fix it.


Cambridge, UK

Carbon13 is the venture builder for the climate emergency. We are selecting and supporting 1000 entrepreneurs over 5 years who ...

View Company Profile