Senior Backend Engineer, Distributed Systems

Remote (US/Canada)

Censys’ mission is to be the one place to understand everything on the internet. Frustrated by the lack of trustworthy Internet intelligence, we set out to create the industry’s most comprehensive, accurate, and up-to-date map of the Internet. Today, Censys delivers real-time Internet intelligence and actionable threat insights to global governments, over 50% of the Fortune 500, and leading threat intelligence providers worldwide.

Location: This position is remote within the United States or Canada.

We’re looking to hire a Senior Distributed Systems Engineer on our Internet Map Connections team to build highly-available and scalable, data-driven services that provide value directly to customers and across our organization. Censys operates distributed infrastructure for Internet-wide scanning, bulk DNS resolution, and X.509 certificate ingestion: your job will be to go below the surface of our data, and help us find and attribute ownership to assets and find how assets on the Internet relate to one another.

At Censys, we believe in working iteratively, but we’re always thinking about the big picture. We’re building a platform that enables fast development of future products, and integration with new data collection methods. You'd be great for this position if you're someone who considers not just initial development, but ongoing maintenance and monitoring. You consider delivery and developer experience, and everything you do can be built upon in the future by others.

• Design and build services that power existing and future products at Censys by building our next-generation attribution engine, used to determine entity ownership and connections between assets in the Censys Internet Map.
• Work closely with our Coverage and Context Internet Map teams to help ensure Censys maintains the most comprehensive, complete, and context rich datasets.
• Build and extend large scale, real-time streaming services and applications which leverage our massive datasets to power internal product APIs and external applications.
• Leverage a multitude of software architectures and techniques, including messaging queues, eventual consistency semantics, distributed locking, clustering, CQRS, and others.
• Interface with a polyglot codebase, including working with existing Python and Go applications.

• A positive attitude biased towards action and iterative problem solving, learning as we grow every step of the way.
• A deep understanding of how the Internet works. For example, WHOIS, Certificate Subject Alternative Names (SANs), and DNS record types should not be foreign to you.
• 5+ years of experience in software engineering.
• 3+ years of experience with Golang.
• Experience with REST/gRPC and service-oriented architectures.
• Distributed systems experience:
  Ability to build horizontally scalable systems, with a high degree of availability and fault‑tolerance leveraging techniques such as distributed locking, load‑shedding, etc.
• The ability to thoughtfully participate in technical discussions and drive towards data‑driven decisions amidst ambiguity and competing priorities.
• Strong communication and documentation skills. Explaining complex technical concepts to other engineers, designers, salespeople, and content marketers is no problem for you.

• You have experience with microservice‑based designs with GCP Pub Sub, etc, and know their tradeoffs.
• Experience building, deploying, and maintaining containerized services in a Kubernetes based environment.
• Familiarity writing analytical SQL and/or optimizing reading and writing to large datasets in OLAP databases such as Snowflake, Google Big Query, etc.
• You understand the value of building maintainable software. Some of your first tasks when building a new service are ensuring test coverage enforced by CI, adding linters, and adding code complexity checks. You enjoy a good abstraction, and promote established design patterns, but also know when to think outside the box.

For candidates located in high cost of living locations, the salary range for this position is $180,000 - $245,000 + bonus eligibility and…