Second Measure (YC S15) | SF Bay Area - San Mateo, CA (downtown) | ONSITE | https://secondmeasure.com
Second Measure analyzes billions of credit card transactions to answer real-time questions about consumer behavior.
Through our self-service analytics platform, we help our clients – some of the world’s largest brands and investment firms – answer questions like:
- Is Lyft gaining or losing market share in NYC?  - How many Tesla Model 3 preorders have been refunded?  - How dependent is Stitch Fix on its biggest spenders?  - (Check out our research blog ) We’re 60 people today — mostly senior engineers and data scientists — and recently closed a $20M round Series A (Bessemer, Goldman Sachs, Citi, and YC).
We’re looking for other strong builders, especially those who can grow into leadership roles:
- Data Engineer - Data Scientist - Research Analyst - (more) I'm a founder (mike@). Apply directly  or email jobs@ and CC me.
Roblox | San Mateo, CA | Full Time | ONSITE
Roblox is ushering in the next generation of entertainment, allowing people to imagine, create, and play together in immersive, user-generated worlds.
We are recruiting across multiple teams and positions. Our top priority roles are:
Backend Web Engineer: 5+ years’ experience, Fluent in C#, C++, Java, or another OOP language
C++ / Lua Engineer: 3-5 years’ experience; Proficient in C++; Experience with Lua preferred
Data Scientist: 3+ years’ experience; Expert with SQL and Python or R
Please visit https://corp.roblox.com/careers/ to apply, find more information and/or to see our full list of open positions.
Grain | Frontend Engineer (React) & Backend Engineer (Elixir/Phoenix) | San Mateo, CA | Full Time | Onsite
Grain is on a mission to make all voice & video conversations at work accessible and useful. We do this by creating a replacement to Google docs that syncs perfectly with modern calendaring and video conferencing tools so that everyone is on the same page, with a perfect record of what is important but without requiring massive behavior change.
Grain is founded by two brothers, Mike Adams (3X founder- previously MissionU [acquired by WeWork] & Degreed) and Jake Adams (first employee/engineer at Branch [$1B valuation]) and funded by top VCs and Angel Investors.
Software Engineer - Backend (Elixir/Phoenix): https://angel.co/grain-intelligence/jobs/495036-backend-engi...
Cobalt Robotics | San Mateo, CA | Full-time | Onsite https://cobaltrobotics.com/
Cobalt builds autonomous security robots that keep buildings safe by combining the reliability of machines and the friendly face of human-in-the-loop “Robot Specialists.” Security costs U.S. companies over $200B a year and is a very difficult task for humans to perform because of long monotonous hours. We have robots deployed to customers nationally and are an incredibly fast moving team - we went from nothing to shipping our first robots in 12 months! We are 40+ people now and are looking for folks who are scrappy, collaborative, excited, and eager to share their knowledge and expertise with the rest of our team. To see more about our values and company culture, visit https://cobaltrobotics.com/about/
Please send your resume to email@example.com or visit the links below:
* All Open Roles: https://cobaltrobotics.com/careers/
* Robotics Engineer: https://jobs.lever.co/cobaltrobotics/1e3a394f-407f-4ec0-af1e...
* Senior Frontend Engineer: https://jobs.lever.co/cobaltrobotics/e00d5c11-7bc1-4255-aca5...
Pinpoint Predictive | San Mateo, CA | Full-time | Onsite | Customer Facing Data Scientist
Pinpoint Predictive is a VC and Stanford StartX-backed startup that enables companies across a wide variety of industries to more effectively forecast and influence human behavior. Leveraging the latest advances in behavioral science, artificial intelligence, and privacy-safe analytics, Pinpoint’s Psychometric AI-powered Thinkalike® technology allows organizations to better understand intentions, reduce risks, and persuade people to take positive actions.
We are currently a small and growing team. You will have a great opportunity to grow and shape the product.
Our website: http://www.pinpoint.ai
Customer Facing Data Scientist: https://easyapply.co/job/customer-facing-data-scientist-2
Lumiata | Onsite | San Mateo | Lead Software Engineer - ML Platform
We're a medical technology company using machine learning and massive amounts of patient data to improve how the healthcare system works. Our tools process millions of patient records to predict what kinds of medical risk and problems will befall a patient and other medically relevant parameters. Join us to learn about the many intricacies of medical data, how to handle very large volumes of patient records, and how to build pipelines to operationalize cutting-edge machine learning models. We have developed a product major healthcare players want to buy and now need to turn it into something big that will streamline how healthcare works, come help us build it out!
Lead Software Engineer: We work mostly in Python and Scala. Main technologies include Spark, TensorFlow, and Airflow among others, mostly based in GCP. We’re always trying new things, and you will be part of making those decisions. We’re looking to build more robust pipelines to transform raw, often human-entered data into standards-compliant forms, and to deploy a wide variety of machine learning/AI models in a scalable, traceable manner.
We need several engineers at 4+ year senior/tech lead level. Requirements for more senior positions shift more toward demonstrated ability to architect and lead projects. In all cases though we look for independence, a strong sense of craft, and solid technical skills.
General Process (based on candidate we make small tweaks):
1.) Phone screen for resume
2.) Short take-home problem
3.) Phone conversation about take-home
4.) Onsite with us
Odds and ends: mostly onsite in lovely downtown San Mateo but flexible hours. Free lunch, ~25 employees, growing in a field that really affects people's lives. Diverse work environment with good, friendly people.
Please apply at https://www.lumiata.com/careers.html and contact hr at lumiata.com with any questions.
OneSignal (YC) | Full Stack Engineer, Backend Engineers, Frontend Engineer, DevOps, Mobile Developers | San Mateo, CA | 125k-180k + 0.1% to 0.2% equity https://onesignal.com
We're an early stage startup providing a mission-critical product to over 650,000 developers.
OneSignal is a simple, developer-friendly interface to push notifications and email for apps and websites.
Tech Stack: Rust, Go, Ruby, Rails, React, Typescript, PostgreSQL, Redis, Spark, Kafka, and InfluxDB
You can learn more and apply at https://onesignal.com/careers