Skip to content
CV Rocket
Get me interviews
How it worksThe enginePricingBlogContactSign in

Open nowPosted 270 days ago

Principal Engineer

Topoteretes UG (haftungsbeschränkt)4 open roles

Where
Berlin
Work mode
Hybrid
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowPrincipal EngineerTopoteretes UG (haftungsbeschränkt) · Berlin

  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 Topoteretes UG (haftungsbeschränkt)'s own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

7.4% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 1.5%1 day
  2. 3.5%3 days
  3. 7.4%7 days
  4. 13.2%14 days
  5. 34.5%30 days
This job: posted 270 days ago

The posting

Cognee is building the memory engine + data plane for AI agents to plan, reason, and act. Our open-source Python SDK is in production at 70+ companies, hit GitHub Trending, and runs 550 000 times a month . We’ve won early customers (top 10 Pharma etc) and just raised a large Seed.

We’re hiring a Principal Engineer to own the Cognee SDK as a product surface area — setting technical direction, raising engineering quality, and scaling adoption.

You'll be coding in Python and Rust.

What you’ll own

  • SDK architecture, API design, and roadmap (Python now, future SDKs later)
  • Release engineering: versioning, compatibility, CI/CD, testing, benchmarks
  • Performance, reliability, observability, and production readiness
  • Developer experience: docs, examples, reference implementations
  • Open-source stewardship: contribution workflows, PR reviews, community support
  • Cross-team leadership: shaping core platform contracts through the SDK

Requirements

What we’re looking for

  • Principal-level ownership of a high-adoption SDK / developer platform / core library
  • Deep Python skills (packaging, typing, testing, performance, clean APIs)
  • Experience with production systems
  • Strong taste for DX and high standards for stability and maintainability
  • Bonus: open-source leadership, agent/memory/retrieval systems experience
  • Hands-on experience with LLMs

The SDK is how the world experiences Cognee — you’ll define it.

Benefits

Up to 150 000 EUR + Equity

Company sponsored meals

Trips to San Francisco

Fetch breaks with the office dog

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against Topoteretes UG (haftungsbeschränkt)'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 Topoteretes UG (haftungsbeschränkt)'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

    Topoteretes UG (haftungsbeschränkt)'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

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

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

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and 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.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.