Ask HN: Who is hiring? (November 2017)

Ahrefs runs an internet-scale bot that crawls the whole Web 24/7, storing huge volumes of information to be indexed and structured in a timely fashion. Backend system is powered by a custom petabyte-scale distributed key-value storage to accommodate all that data coming in at high speed. The storage system is implemented in OCaml with thin performance-critical low-level part implemented in C++ and Rust. On top of that Ahrefs is building various analytical services for end-users.

We are a small team and strongly believe in better technology leading to better solutions for real-world problems. We worship functional languages and static typing, extensively employ code generation and meta-programming, value code clarity and predictability, and are constantly seeking to automate repetitive tasks and eliminate boilerplate, guided by DRY and following KISS. If there is any new technology that will make our life easier - no doubt, we'll give it a try. We rely heavily on opensource code (as the only viable way to build maintainable system) and contribute back [1]. Occasionally we track down CPU bugs [2].

We are looking for a backend developer [3] with a deep understanding of networks, distributed systems, OS fundamentals and taste for simple and efficient architectural designs. Our backend is implemented in OCaml (and some C++), as such proficiency in OCaml is very much appreciated, otherwise a strong inclination to intensively learn OCaml in a short term will be required. Understanding of functional programming in general and/or experience with other FP languages (F#,Haskell,Scala,Scheme,etc) will help a lot. Knowledge of C++ and/or Rust is a plus.

Ahrefs is also looking for a oncall/devops [4] to help take care of its distributed backend systems powered by 2000+ servers and ensure all systems are up and running 24/7. We require deep understanding of operating systems and networks fundamentals, practical knowledge of Linux and a healthy desire to automate everything while being able to quickly resolve urgent issues manually.

Our motto is "first do it, then do it right, then do it better". Drop an email to connect@ahrefs.com

[1] https://github.com/ahrefs [2] https://tech.ahrefs.com/skylake-bug-a-detective-story-ab1ad2... [3] https://ahrefs.com/jobs/ocaml-server-side-developer [4] https://ahrefs.com/jobs/oncall-devops

I'm specifically looking for several information security roles:

• An application security engineer (https://www.lyft.com/jobs/software-engineer-application-secu...) who’s excited about helping Lyft ship safe software quickly. You’ll help product and engineering teams at Lyft develop new features and products that are innovative and protect our users, build systems and tools to make it easy for engineers at Lyft to develop safe software by default, and promote security throughout the company.

• A detection & response engineer (https://www.lyft.com/jobs/software-engineer-security-detecti...) who’s excited about protecting Lyft and our users through swift detection of and response to security incidents. You’ll develop and automate techniques to hunt for and alert on attacker behavior with high signal-noise ratio, test our detection and response capabilities to improve our tools and processes, and act as a calm and rational incident commander when incidents do occur.

• A data privacy engineer (https://www.lyft.com/jobs/software-engineer-data-privacy) who’s excited about protecting our users by ensuring the data we collect is used appropriately without inadvertent or malicious misuse or disclosure. You’ll develop tools to enable developers to identify and annotate the data they collect, raise visibility of data storage and usage practices and identify poor practices, and advocate for developing products and features in ways that minimize privacy risk and enable user awareness and control.

• A technical program manager (TPM) for security and privacy programs (https://www.lyft.com/jobs/technical-program-manager-security...) who’s excited about driving security and privacy improvements across Lyft

We are also hiring security operations and consulting roles, though we don't have job postings up yet.

We try to approach security from a software engineering standpoint: we believe in scaling security through automation and tooling, and we ship frequently. You'll help to scale security at Lyft to support our continued growth and your work will have significant impact and visibility. If you want to learn more about the kinds of things we’ve built, check out our security-related blog posts at https://eng.lyft.com/tagged/security.

If you're interested or want to talk more about working on security at Lyft, ping me at steve.woodrow@lyft.com.

Our mission is to make great cities accessible to everyone. We do that by creating community homes--a unique new affordable way to live in cities. We’re a tech-enabled company that places a high value on experimentation and excellent craftsmanship.

As an early member of the team you will be afforded significant autonomy and room to grow within the company. You will work alongside the CTO to design, implement and maintain software that affects all aspects of our business. You will be expected to work on a variety of different products ranging from web and/or mobile apps for our members, internal business operations/management tools, payment and order management systems, IoT device management and administration, data ingestion and analysis, and more. Your role will be dynamic and challenging.

As a member of a small engineering team you will be expected to not only work collaboratively, but to take complete ownership over entire software products and their development lifecycles. You should be excellent at communication and prioritization; you will work with our product, operations and community teams to build separate (but often related) products and understand the broader context of the company and its goals to determine how to prioritize the many projects.

This is a full-stack role--you should be comfortable working on/with front-end applications, databases, web services, system administration and with third-party APIs.

Our stack is Datomic/Clojure/ClojureScript. Familiarity with these is a huge bonus.

Who are we? Rewire builds data-driven therapeutic games for kids with behavioral challenges using principles of neural plasticity and rewiring. We are a small team of neuroscientists, data scientists and developers with degrees from top universities.

Who are we looking for? A committed and creative game developer with a strong background in Unity or a similar game engine (Unreal, Vizard etc). The developer will be largely responsible for building the game from scratch on a mobile platform. Other necessary skills are creativity, good communication, discipline, commitment, interest in gaming and children’s games.

Why should you join? We are super flexible as long there is hard work and creativity involved. We are early stage so there is a lot of potential to grow. If you have strong interest in making a change in kids’ lives.

Preferred if able to work on-site at least once a week. Interested? email: info@rewire.solutions

Check out our jobs page: https://jobs.lever.co/headspace

Founded in 2010 by Andy Puddicombe and Rich Pierson, Headspace was created with one mission in mind: to improve the health and happiness of the world. With nearly 20 million users in more than 190 countries, the Headspace app offers hundreds of guided meditations designed to help with everything from stress and anxiety to relationships and sleep.

Open Roles:

Lead Software Engineer, Platform (Growth)

Lead Software Engineer, Android (Grow)

Software Engineer, Web B2B (SF)

Software Engineer, Platform B2B (SF)

DevOps Engineer (SM/SF)

Data Engineer

VP of Analytics

iOS Engineer