Custora (YC W11) | New York, NY | Onsite | https://www.custora.com

Custora exists to help our customers improve the relationships they have with their own customers. We do this by ingesting data about every interaction a company has with each of their customers and then making predictions using that data about how those customers will behave in the future. Our customers then use these predictions to tailor their communications.

To learn more about who we are, our engineering culture, and whether this is the right place for you, read our Key Values profile: https://www.keyvalues.com/custora

Here are our open roles:

- Engineering Manager: https://grnh.se/2f70d01c1

- DevOps Engineer: https://grnh.se/cdae713f1

- Senior Fullstack Engineer: https://grnh.se/18bf836b1

- Data Engineer: https://grnh.se/02e167501

- Data Scientist: https://grnh.se/58b316961

Tech Stack: The bulk of our infrastructure is dedicated to distributed processing for machine learning, powered by Apache Hadoop: Hive, Presto, and Spark. Our web app uses React on the frontend and Ruby on Rails on the backend. We're hosted on AWS.

Contact: Email is hidden

Analytical Flavor Systems | Manhattan - NYC | Full-Time | Onsite | http://www.gastrograph.com/ Positions: Full-Stack Engineer, Data Scientists, R&D Product Formulator / Scientist

Overview: Gastrograph AI is an artificial intelligence platform for modeling human sensory perception of flavor, aroma, and texture to predict consumer preferences of food & beverage products. We help food and beverage companies develop new products, enter new markets, and optimize their existing brands. We're a diverse 12 person post Series-A startup.

Application & Data Stack: Javascript, React & React Native, Java, GraphQL, Spark, R, postgres/MySQL, AWS

The Position(s)

_Data Science_: We didn't build a data science team to optimize our product's marketing spend, sales funnel, or client retention – we built a data science team to build our product. Our Data Science team develops new models and algorithms from scratch to make second-order inference on sparse data sets from non-representative samples that generalizes to the underlying target population. We rely on cutting edge models such as persistent homology, PU Learning, and metric learning to make predictions on non-eucldian human sensory data. We don't use tensor flow or pandas or keras as they are not a good fit for our problem space. We prefer a deep understanding of math and stats VS experience running logistic regressions in Python. (but we're cool with Python / Logit / experience)

_Engineering_: (1) full stack engineers with experience with React, GraphQL, and React Native to work on our web app for clients and our mobile app for tasters. (2) Data-Engineers with experiance in micro-batch processing for machine learning pipelines.

Next Steps: please contact Jason Cohen at Email is hidden to apply.

HAProxy Technologies | Software & Systems Engineers, UI/UX, Dev. Advocate | Waltham, MA | Paris, France | REMOTE

HAProxy Technologies is the company behind the world's fastest and most widely used open-source software load balancer.

We're looking for developers stretching across many spectrums: C, Golang, UI/UX designer, developer evangelist. We're also seeking Senior Systems Engineers (Linux).

Developer Advocate:

Looking for a developer advocate who can represent us at meetups, conferences, and anything else that aids in making developers aware of new products, features, and changes. This role would also assist with content creation. Ideal candidates are outgoing, up-to-date with industry trends, and come from a development background.

C:

We are looking to reinforce the development team of HAProxy and are looking for developers who have solid skills in Shell, C, HTTP, TCP/IP and uses Git. Knowledge of cloud environment is a plus. We are looking for people who are not afraid of patching the Linux Kernel and who can quickly become autonomous.

Golang:

We are looking for Go developers with 2+ years of experience in Kubernetes and Cloud environments, as well as load balancing. A Bachelors or higher degree in IT is desirable. If you want to contribute to the software enabling performance and reliability of some of the largest websites on the internet.

UI/UX:

We are looking for UI/UX designer who has experience with designing high-quality intuitive user interfaces to meet and exceed our customers’ expectations.

Senior Systems Engineer:

We are seeking Senior Systems Engineers (Linux) to work out of our Waltham, MA office or remotely in the EST/CST/MST/PST timezones. Knowledge of HAProxy is a plus.

Please send cover letter and resume to Email is hidden

Fast Radius | Chicago, IL | Software Engineers and DevOps | Onsite or Remote for the right candidate

Fast Radius is building a new kind of factory focused on 3D printing end use production parts. As part of building and designing a factory from the ground up we have the unique opportunity to incorporate software into the manufacturing process in a way not possible for existing factories.

We're building our platform using Elixir, Rust, and React. If you're interested in hearing more reach out to me at Email is hidden.

Altus Assessments | Senior Software Developer | ON-SITE | TORONTO | FULL-TIME | competitive salary + benefits | https://altusassessments.com/ Altus Assessments helps academic programs find stronger students by delivering robust assessments of professionalism and personal characteristics of applicants. Think of us like an SAT for professionalism. Our main assessment, the CASPer test, is used widely for high stakes admissions for Medicine, Teachers Education, Nursing, Pharmacy, Dentistry and Optometry in Canada, the US and as far away as Australia. We are hiring for:

Senior Software Developer: We are looking for a Senior Software Developer who has experience contributing to various SaaS models as a full stack developer. The ideal candidate has drive, experience, and loves to tackle problems through innovation with team collaboration and leveraging industry best practices and tools. Comfortable with ambiguity, a fast-paced environment, and prefers change over status-quo. We are growing quickly and you'll be involved in fixing/expanding processes that will break! Ideally you have experience launching several products to production. Oversee technical architecture and ensure the development of a highly secure and high reliability application that can be trusted by applicants and programs alike.

Tech stack: JavaScript / NodeJS / Meteor / MongoDB / Express / AWS + Heroku

What we offer: competitive salary + generous vacation policy + comprehensive health, dental and life insurance coverage + flexible working

Contact: Email is hidden

First Round Capital | Fullstack Software Engineer | SF, NYC | REMOTE | Full Time

First Round is looking for two full-stack software engineers to help us build our own unique products that our core and extended community of founders, CEOs, and their teams use every day.

We use Ruby on Rails for our backends and React + Redux on the frontend, but we're open to candidates with limited experience in those particular frameworks assuming they have experience in equivalent frameworks.

Some recent projects include https://search.firstround.com/ and https://careers.firstround.com/welcome/firstround

To read more check out https://medium.com/@firstround/were-hiring-for-our-software-... or email me directly at Email is hidden

Oscar Health is a startup using technology, data & design to change the way people find and access care. We are disrupting the healthcare industry by putting people first, not business and cost. We just received $375 million from Alphabet in August - come join the family!

hioscar.com/careers

We're currently hiring for a variety of full-time onsite roles in our New York City office and new Engineering hub in Los Angeles (Culver City):

NEW YORK CITY Director of Infrastructure Engineering: https://grnh.se/5363f6b61 Engineering Manager: Data/Systems: https://grnh.se/c7a1b74f1 Engineering Manager: Web & Mobile: https://grnh.se/3f67a13d1 Senior Software Engineer: Applications and User Interfaces (NYC): https://grnh.se/c37a43151 Senior Software Engineer: Data/Systems (NYC): https://grnh.se/6c2ba6b11 Senior Software Engineer: Web & Mobile (NYC): https://grnh.se/a4c0a8731 Software Engineer: Applications and User Interfaces (NYC): https://grnh.se/b8fefccb1 Software Engineer: Data/Systems (NYC): https://grnh.se/d7514f0c1 Software Engineer: Product Infrastructure (NYC): https://grnh.se/d7ca9c1f1 Software Engineer: Web & Mobile (NYC): https://grnh.se/1d737c291 Junior Software Engineer: Data/Systems (NYC): https://grnh.se/db1fe84f1 Junior Software Engineer: Web & Mobile (NYC): https://grnh.se/df42e0021

LOS ANGELES Senior Software Engineer: Data/Systems (LA): https://grnh.se/196c74d81 Senior Software Engineer: Web (LA): https://grnh.se/04c41e691 Software Engineer: Applications and User Interfaces (LA): https://grnh.se/5ced83341

Happy applying! The Recruiting Team @ Oscar

Skool | Senior Backend & Frontend Engineers | Los Angeles (LA) | Full Time | Onsite | 155k-260k

* Problem: Education systems are gatekept, expensive, slow, outdated, unpersonalized. * Mission: To democratize education, instill lifelong learning and collectively educate Earth. * Product: Social learning network that incentivizes intelligence and contribution, not fame. * Traction: Validated idea, early dev stage, CEO with $30m/y e-learning company, 6y exp. * Funding: $10M bootstrapped. * Stack: Golang backend, React frontend, various datastores. * Values: Student obsession, laser-focus, high standards, long-term thinking, stay lean, scientific reasoning, ALL in, full transparency, question everything, invent impossible. Want to join a team of thinker-doer engineers with a hatred of bureaucracy and a bias for building, on a quest to educate Earth? We’re looking for Senior Frontend (React) and Backend (Go) Engineers to join our small self-organizing team.

Above market pay, ownership via RSU’s, superb benefits, relocation allowance, lots of sun.

Interested? Send us an email Email is hidden

Predata | Software Engineers | NYC | FULL-TIME | ONSITE | https://predata.com/

Predata is building machine learning models to link online behavior to geopolitical and economic trends. Fortune 500 companies and governments use Predata to anticipate events and make better decisions.

We come from the worlds of technology, political science, and finance, and share a commitment to building the future of predictive analytics. Our challenge is to transform abstract data into insight and narrative, while attempting to understand and measure the human elements that drive our data. We're passionate about simplicity, discovery, clarity, and performance in the face of large data volumes.

We are hiring for multiple engineering roles, including front-end, back-end, and DevOps. If you are always looking for things to improve and unafraid to get started quickly, you'll be at home on our team. There will be many opportunities to contribute meaningfully to our product and process as we continue to grow.

Front-End: Mithril.js, React, D3, ES6, Sass, Webpack

Back-End: Python, Django, numpy/scipy/pandas/scikit-learn, Celery, PostgreSQL, Elasticsearch, Redis, RabbitMQ, Docker, AWS

We're pragmatic about using the right tool for the task at hand.

Apply at https://angel.co/predata/jobs/

Questions? Email Email is hidden

Zulip | https://zulipchat.com/ | REMOTE or in San Francisco | Senior Mobile Engineer | Full-time | SF

Zulip is the leading 100% free and open source alternative to Slack. Our users love Zulip because of our unique UX with threaded conversations; compared to Slack or its clones, they find discussions in Zulip more productive. See our website for details, or read some Hacker News comment threads filled with Zulip love:

* https://news.ycombinator.com/item?id=16863675

* https://news.ycombinator.com/item?id=17622987

* https://news.ycombinator.com/item?id=18400988

We have a handful of people in the USA, amplified by our enormous and amazing open source contributor community. The entire product is open source; we make money selling hosting on Zulip Cloud as well as commercial support for on-site deployments.

This is an open-source job: all our code is open source and free software. We do our development in the open on GitHub and our own public Zulip instance at chat.zulip.org, and dozens of people contribute code every week from all around the world. You can be anywhere in the world too.

We're primarily looking for an experienced engineer excited about taking our mobile apps to the next level. The ideal candidate has full-stack engineering skills, is experienced at participating in open source communities, has great design sense, gets stuff done, and (if not in SF) has done work remotely before, either professionally or in a major open source project. But ideal candidates may not exist, and we're willing to compromise on some of these things :).

We are also always opportunistically hiring for impressive candidates interested in working on other parts of Zulip (UI/design, infrastructure/scalability, growth, etc.).