Growth Marketing Manager (GTM Engineer)

The Supercritical Mission
Supercritical is the leading carbon removal marketplace: 1 in 5 corporate carbon removal buyers are customers. The company builds the commercial architecture that turns carbon removal pledges into delivered tonnes, sourcing, creating, and guaranteeing permanent supply for corporate buyers running multi-year procurement programs. It has facilitated nearly 2 million tonnes of carbon removal for 200+ buyers and tracks 600+ suppliers across roughly 80% of the global permanent CDR market.

Quality is the strategy. Supercritical’s independent science team vets every project across 118 data points and rejects 88% of what it assesses, and the same scientists help set the standards buyers will be measured against, including on SBTi’s Expert Working Group for carbon removals. When the right supply does not exist, Supercritical creates it: Liferaft was co-designed from the ground up for Microsoft’s 1-million-tonne offtake, the largest biochar offtake in US history, signed in under 18 months. Every contract carries three layers of delivery protection. More than 300,000 tonnes have already been delivered and retired, with zero missed retirements to date.

The mission has never been more explicit. The UN now says the world is set to overshoot 1.5°C, and that carbon removal, alongside deep emissions cuts, is essential to coming back. The requirement is roughly 10 billion tonnes a year by 2050; all the permanent removal ever delivered adds up to less than a single day of that. Supercritical exists to close the gap. Its mission: scale carbon removal to gigatonnes by building the connective infrastructure for the market. Founded in 2021 by Michelle You and Aaron Randall, the team behind Songkick, Supercritical is backed by Lightspeed Venture Partners, MMC Ventures, RTP Global, GreenCode Ventures, and LocalGlobe.

About the role

Reporting to the Marketing Director, you will build the demand engine that turns Supercritical's target account list into engaged buyers, and you will build it with AI rather than with headcount. Your job is to figure out how to combine creativity, systems thinking, AI, and a handful of Sales and Marketing people into systems and campaigns that deliver on commercial goals. This is a builder role through and through.

Supercritical sells carbon removal to the world's largest companies through 12+ month cycles against a constrained TAM. That is a small, senior, sophisticated buyer pool where volume outbound does not work but precision does.

You will sit in a marketing team of five alongside comms, content, events, product marketing, and policy, and work daily with the account directors and our commercial director. Our product team can support you on infrastructure, but this is a commercial role using technical tools, not a software engineering role.

What you'll be doing

Build the outbound and nurture engine:

• Own the systems that move accounts from unaware to engaged to sales-ready: signal capture, scoring, sequencing, and escalation. Design it so an engaged account gets a next step without waiting for a rep.
• Build campaigns that personalize at account level using our own data and research, then measure whether personalization actually changed behavior.
• Ship small tools and calculators that earn attention and generate first-party data. Our SBTi calculator is the template: a mini product built with Claude Code, launched for engagement, then wired into outreach.

Ensure funnel truth:

• Build on existing account engagement tracking in HubSpot.
• Stand up coverage and pipeline reporting by account tier that runs without manual work.
• Own data quality across enrichment, target list management, and CRM hygiene. Decide what to fix, what to automate, and what to leave alone.

Make events compound:

• Own event-driven demand: pre-event target lists and outreach, post-event follow-up sequences, and per-event pipeline attribution. Events are our strongest channel and our pre-work and follow-up is manual, but shouldn't be.

Work the tooling and the stack:

• Own our GTM stack decisions and integrations: HubSpot, enrichment, sending infrastructure, signal tools, and the LLM workflows that sit across them. You will have a tooling budget, but they need to work.
• Partner with our Content and Campaigns Manager to build a context layer so automations and campaign quality does not drift as the system grows.
• Partner with sales on adoption. Nothing you build matters if the account directors do not use it and get impact from it.

Requirements

You'll be great if you have

• Five or more years in growth, demand generation, marketing operations, or revenue operations, with at least one year where you were the person building, not briefing.
• Evidence you build: workflows, integrations, internal tools, or small products that a commercial team used. You've likely used tools like Clay, HubSpot, n8n or Make, APIs, SQL, Python, or Claude Code. But we care about what you shipped, not the tooling.
• Hands-on LLM work beyond prompting in a chat window: agentic workflows, evaluation of output quality, and a clear view on where AI belongs and where it does not.
• Commercial judgment. You can read a funnel, debate with a sales team about lead quality, and prioritize the three things that matter this quarter.
• Experience with enterprise or ABM motions where the target list is small and named, rather than volume lead generation/PLG.
• Comfort with technical subject matter. You will need to hold your own on carbon removal science well enough to build automations around it.
• Self-direction. Point you at a problem and you will come back with an approach, not a request for a brief.

Nice to have

• Climate tech, carbon markets, energy, or another market where buyers need educating before they buy.
• Having built something publicly: a tool, a calculator, an open-source workflow, a newsletter with a system behind it.
• Exposure to RFP-driven or procurement-led sales cycles.
• Experience supporting events as a demand channel.

Benefits

Our values

We have set ourselves the mission of leading the carbon removal market to 14,000x its current size by 2050. In order to do that we need brave adventurers that think huge and deliver at speed. We call this the 14,000x mindset. The key components of the 14,000x mindset are:

• 🙋 Ownership mentality: We relish autonomy and we create it for others. We are deeply curious and thrive on understanding the root cause of complex problems. We take ownership over our own and our team’s development by giving and soliciting direct and actionable feedback.
• 🏎️ Move fast: We identify the most important problems to solve and cut everything else. We test ideas early so we don’t waste time on dead ends. We default to action and deliver awesome results.
• ☀️ Radiate positive energy: We come to problems with energy and passion. We nurture new ideas and engage positively in testing them. We inspire our colleagues to go further and are resilient to set backs. We recharge by taking time off. We are here for a great day, not a long day.
• 📣 Communicate proactively: We communicate simply and directly. We broadcast updates, insights and lessons learnt, especially when things haven’t gone to plan. We give as much context as possible so our teammates can make great decisions.

Perks & Benefits

💰 Competitive Salary – £60,000 - £70,000 (depending on experience)

🌴 Unlimited Annual Leave – Take the time you need to recharge

🎉 Extra Time Off – The first Friday of every month is a company-wide day off

💡 Pension Contribution – We’ll match your 5% contribution with 3%

🏡 Flexible Hybrid Work – Work remotely first, with the option to use our London co-working space in Work.life Old Street

💚 Wellbeing & Home Setup Support – £1,000 annual wellbeing allowance + up to £500 for home office equipment

🍻 Team Socials – Monthly company gatherings in London and annual company multi-day offsites.

Diversity and Inclusion

We’ve been committed to building an inclusive and diverse workplace since day one of the company. We’re the only company we’re aware of with a 50:50 gender balanced list of investors and our day to day processes are always defined with D&I in mind, for example our remote first policy and flexibility around working time.

We are excited to encourage applications and interest from individuals underrepresented in the climate and tech space. Climate change and climate justice is a social issue that cuts across race and gender. We welcome applicants with lived experience across these issues.

Studies have shown that some groups of people, like women, are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are, if you like one of our jobs, we encourage you to apply as you might just be the candidate we hire!

UK Sponsorship & Applicants currently outside the UK

• UK Work Sponsorship: Unfortunately, at this stage of our growth, we are unable to offer UK sponsorship to applicants.
• Candidates who live outside the UK who are not looking to live and work in the UK, are within 3 hours of the GMT/BST timezone and are willing to travel to London quarterly are encouraged to apply. Please note we will use an Employer of Record arrangement in these circumstances.