Senior Backend Engineer ($180K - $220K + Equity) at Duckbill

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jack's network

The next step is to speak to Jack.

Job Title: Senior Backend Engineer

Salary: $180K - $220K + Equity

Company Description: Duckbill - VC-backed cloud cost platform

Job Description:
Join the founding engineering team at Duckbill to build Skyway, an enterprise SaaS platform untangling the $47.5B cloud cost management market. You will design and operate the high-performance backend services and APIs that power data-heavy product experiences for Fortune 500 clients, transforming messy billing data into actionable financial intelligence.

Location: San Francisco, USA

Why this role is remarkable:

• Join a high-caliber team from Confluent, Pinterest, and Brex at the ground floor of a product with massive enterprise traction and million-dollar contracts.

• Backed by $7.75M from top-tier investors including Heavybit, Uncork Capital, and Encoded Ventures to solve a critical $47.5B market problem.

• Significant architectural ownership in a small team of 10, where your decisions directly impact the scalability of a platform saving customers millions.

What you will do:

• Design and scale backend services using Python and Flask to deliver low-latency, reliable APIs for complex cloud financial data.

• Architect and maintain critical data modeling workflows within PostgreSQL and ClickHouse to ensure absolute correctness and performance at enterprise scale.

• Collaborate with data engineers on ETL patterns and validation systems that normalize billing data from all major cloud providers.

The ideal candidate:

• 5+ years of backend engineering experience with at least 3 years of professional Python development in production environments.

• Proven track record of designing RESTful APIs and working with both transactional (PostgreSQL) and analytical (ClickHouse/S3) data stores.

• Experience shipping user-facing product features in a fast-paced startup environment where data quality and performance are mission-critical.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps

Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.