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Open nowPosted 394 days ago

Software Engineer, Back-End

aether-gtm15 open roles

Where
London, United Kingdom
Work mode
On site
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Your applicationOpen nowSoftware Engineer, Back-Endaether-gtm · London, United Kingdom

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on aether-gtm's own form.

The reply lands in your private mailbox

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The clock on this job

Early applications get read.

11.5% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.0%1 day
  2. 4.3%3 days
  3. 11.5%7 days
  4. 18.1%14 days
  5. 35.6%30 days
  6. 44.6%60 days
This job: posted 394 days ago

The posting

Software Engineer, Aether (London)

About Aether

Aether is building a comprehensive AI-driven platform for the built world. Our core software is used by solar , roofing and heat pump companies to deliver advanced 3D modeling, simulation, quoting, and financing tools – all in one powerful interface. We combine deep technical rigor with real-world utility, leveraging physics-based modeling, AI, and scalable infrastructure.

Founded by alumni of UC Berkeley, École Polytechnique, and ETH Zurich, we bring experience from leading energy and software companies.

Aether is a recent graduate of YCombinator, and has raised over $6M in funding.

Check us out: https://www.aethergtm.com

About the Role

We’re looking for an experienced Backend Engineer to take a lead role in developing our core platform. You’ll work closely with the founders and product team to architect and build high-performance APIs, structure complex business logic, and contribute to systems that simulate solar energy, manage 3D projects, and power customer proposals.

This isn’t a feature-factory job – you’ll own major parts of the backend, help shape system design, and solve difficult problems from day one. Ideal candidates are scrappy, fast, and thoughtful: you write elegant code, fix problems at the root, and care about building software that lasts.

Who You Are

  • You thrive in early-stage, fast-moving environments.
  • You are technically sharp, deeply curious, and own outcomes.
  • You know when to ship fast and when to be rigorous.
  • You love solving real-world problems and optimizing complex systems.

Required Qualifications

  • 3+ years of backend experience in a production environment
  • Strong proficiency in Python and Django (or equivalent frameworks)
  • Deep understanding of relational databases and data modeling (PostgreSQL preferred)
  • Experience building and scaling REST APIs
  • Familiarity with cloud platforms (GCP preferred), containers, CI/CD
  • Fluent in English, with excellent written and verbal communication

Nice to Have

We don’t expect you to check every box, but the more of these you bring, the better:

  • Background in engineering, physics, math, or computational science
  • Experience with asynchronous tasks (Celery, task queues), Redis, and performance optimization
  • Familiarity with solar energy systems, CAD/3D modeling, or simulation software
  • Strong debugging skills and architectural instincts
  • Comfort working with modern frontend stacks (React/Next.js) or APIs consumed by them
  • Experience building B2B SaaS tools, quoting systems, or real-time apps
  • Contributions to infrastructure/DevOps, Pulumi, or observability tools

Why Join Aether

  • You’ll work directly with experienced founders on ambitious technical challenges
  • You’ll be part of a mission-driven company shaping the future of energy and the built world
  • You’ll have autonomy and impact from day one – we ship fast and iterate constantly
  • London-based office, with flexibility for hybrid/remote if you're a strong independent operator

How to Apply

Send us your resume and a short note about why you're interested. Bonus if you include links to past work (GitHub, portfolio, blog, etc). We move quickly.

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What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against aether-gtm's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on aether-gtm's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    aether-gtm's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

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  6. The interview in your calendar

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    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
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