Censys · 1 month ago
Senior Backend Engineer, Distributed Systems
Censys is on a mission to provide comprehensive Internet intelligence and actionable threat insights. They are seeking a Senior Distributed Systems Engineer to design and build scalable, data-driven services that enhance their Internet Map and support product development.
Cyber SecurityNetwork SecuritySecurity
Responsibilities
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
Qualification
Required
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
Preferred
You have experience with microservice-based designs with GCP PubSub, 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 BigQuery, 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
Benefits
401k match
Health
Vision
Dental
And more!
Company
Censys
Censys provides an internet intelligence platform for threat hunting and exposure management.
H1B Sponsorship
Censys has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (5)
2023 (2)
2022 (2)
Funding
Current Stage
Growth StageTotal Funding
$128.1MKey Investors
Intel Capital
2023-10-24Series C· $50M
2023-10-24Debt Financing· $25M
2022-01-27Series B· $35M
Recent News
Greylock
2025-12-02
2025-12-01
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