Senior Backend Engineer: Enterprise SaaS APIs & Data Equity

Job Title

Senior Backend Engineer

Salary

$180K – $220K + Equity

Company

Duckbill – VC-backed cloud cost platform

Location

San Francisco, USA

Overview

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.

Key Benefits

• 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.

Responsibilities

• 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.

Qualifications

• 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.

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