Backend Engineer (Infrastructure)

Lassie
San Francisco, CA

About Lassie

Doctors learn medicine — not business — and shouldn’t have to be experts at both. Most aspire to be independent, but as their practices get buried in paperwork and broken systems, they’re forced to give up. We put independent doctors’ businesses on autopilot so they can focus on care.

Our founding team scaled growth at Robinhood and Coinbase, early product at Superhuman, and built systems at Pinterest, Netflix, and early Zenefits. We’re backed by investors like Homebrew, SV Angel, Unusual, and Sequoia scouts, along with founders of Commure, TransferWise, and Superhuman, and early employees from Stripe, Ramp, Plaid, Robinhood, Coinbase, and more.

You will be a great fit if you…

  • Engineer for reliability and correctness, not just functionality

  • Diagnose and resolve live production incidents with minimal disruption

  • Automate away repetitive work and build tooling that makes engineering faster and safer

  • Design schemas and pipelines for large-scale datasets to power applied AI

  • Are comfortable working across databases, caches, proxies, and job orchestration systems

Some things we’ve built

  • Data pipelines processing $1B+ in insurance claims

  • Systems that eliminate thousands of hours of paperwork every month

  • A sync engine backed by encrypted SQLite in the browser, enabling 100ms experiences for healthcare payments and patient ledgers

Technology we use

We invest heavily in productivity. Engineers should have the best tools for the job and the freedom to choose them.

  • Python (Django), Postgres, Redis

  • TypeScript, React, Tailwind

  • Google Cloud Platform, Vercel

  • Linear, Slack, Notion

Posted 2025-09-22

Recommended Jobs

Sr. Mgr, Payor Relations, Regulatory Affairs

Accordance Search Group
Livermore, CA

Sr. Manager, Payor Relations and Regulatory Affairs Accordance Search Group  Livermore, California, United States (On-site) SaveApply Our client is in search of a Senior Manager, Payor Relations …

View Details
Posted 2025-08-07

Senior Data Scientist

Demandbase
San Francisco, CA

Introduction to Demandbase:  Demandbase is the leading account-based GTM platform for B2B enterprises to identify and target the right customers, at the right time, with the right message. With a u…

View Details
Posted 2025-09-14

Senior Software Engineer - C++

Verkada
San Mateo, CA

Who We Are Verkada is the largest cloud-based B2B physical security platform company in the world. Only Verkada offers six product lines — video security cameras, access control, environmental…

View Details
Posted 2025-09-13

Wazuh SIEM/XDR Engineer

Talentry
San Diego, CA

Cybersecurity Wazuh SIEM/XDR Engineer Contractor (contract to hire) Remote (Company is in San Diego, CA) Cybersecurity: No security clearance is required. Applicants must be US …

View Details
Posted 2025-09-22

Registered Counselor

BayMark Health Services
San Francisco, CA

BayMark Health Services, a leader in comprehensive addiction treatment, is seeking a compassionate and dedicated Registered Counselor to join our team. This position plays a critical role in deliverin…

View Details
Posted 2025-09-10

Dishwasher - Joya

Joya
San Diego, CA

Job Description Job Description JOB REQUIREMENTS: To include but not limited to Sort and rinse dirty dishes, glass, tableware and other cooking utensils and place them in racks to send thro…

View Details
Posted 2025-07-30

Administrative Assistant/Compliance

Hoamco
San Luis Obispo, CA

TO APPLY: Please click this link to apply using our USER-FRIENDLY APPLICATION. We ask that you upload any job-related certificates or transcripts while applying. The process will only take you 5 t…

View Details
Posted 2025-09-16

Senior Software Engineer

Umbra
Santa Barbara, CA

Umbra builds next-generation space systems that observe the Earth in unprecedented fidelity. Our mission: Deliver global omniscience. To stay ahead of climate change, geopolitical risk, and o…

View Details
Posted 2025-09-14

Lead Software Engineer

Aeg Worldwide
Los Angeles, CA

Company Information For more than 20 years, AEG has played a pivotal role in transforming sports and live entertainment. Annually, we host more than 160 million guests, promote more than 10,000 sh…

View Details
Posted 2025-09-22

Discharge Planner - LVN/RN

Wellpath
Lakeport, CA

Full-Time Day! Monday through Friday The Discharge Planner coordinates healthcare discharge services, focusing on identifying community resources and scheduling follow-up appointments for patien…

View Details
Posted 2025-07-29