MapMortar
Sales Development Representative
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SDR — Climate Tech SaaS | Central London | £35-42k Base + OTE
Do you want to sell something that actually matters?
MapMortar is a ClimateTech startup that helps the UK's biggest landlords, lenders, and asset managers future-proof their property portfolios against tightening regulation, climate risk, and the threat of stranded assets — protecting valuations with intelligent capital planning for retrofit. We've raised $4.5m, won national awards, and we're growing fast. Now we need a driven SDR to help us scale.
This is not a boiler-room numbers game. Our pipeline is targeted, our brand is warm, and the problem we solve is urgent. Your job is to open doors at exactly the right companies, at exactly the right time — and book meetings that convert.
What you'll actually be doing
You'll own the top of funnel. That means working a curated HubSpot lead list, building smart outbound sequences, getting on the phone, and booking discovery meetings.
You'll also help us get better. If a sequence isn't landing, you'll say so and test something new. You'll work closely with our marketing lead to align outbound with campaign activity. You'll map corporate structures inside our ICP — landlords, commercial asset managers, sustainability consultants — and find the right person to call.
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The targets are real. The autonomy is real. The support is real.
Who we're looking for
You'll bring 1-2 years of B2B sales behind you and want to progress in SaaS with real deal values (6-figure +).
What you must have:
- A real phone presence — you like talking to people, and it shows
- The ability to write copy that cuts through — short, clear, value-led
- Enough self-direction to not need hand-holding
- A genuine interest in climate, sustainability, or the built environment — not a degree in it, just a reason to care
Bonus points if you've used HubSpot, Instantly, or AI-powered sales tools. We use Claude workflows internally, and we'll teach you to use them well.
What you'll get
- £35-40k base salary + uncapped commission
- Direct daily access to a senior GTM leader — this is real mentorship, not a manager you see once a quarter
- A hybrid setup with a great central London base
- The chance to work in one of the most commercially exciting sectors in ClimateTech — our deals are complex, high-value, and genuinely worth closing
- A small, high-trust team where your results are visible and your contribution is recognised
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About MapMortar
We've built RAILS — a proprietary AI and financial modelling platform (developed with UCL) that identifies where real estate assets face transition risk, physical climate risk, and the risk of capital value erosion, then recommends the upgrades that make financial sense at asset and unit level.
Winners of the UKPA Decarbonising the Built Environment Award (2025) and the Geovation Impact Award. Backed by VCs, strategic customers, and Innovate UK. Used by leading landlords, consultants, and service partners across the UK and Europe.
If you're ready to build a serious sales career while working on a problem that matters, apply now.
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Jessica, London
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