System Engineer, Behavioral Analysis

United States Digital Space LLC; United States; Hybrid; USD 136,000 - 206,000; Full time

Job summary

United States Digital Space LLC is seeking a Systems Engineer to build, operate, and scale production services within the UEBA pipeline. You will implement detections, improve event processing, and collaborate across engineering groups to deliver end-to-end functionality.

The role emphasizes reliability, performance, and cross-team communication as you own defined projects from design to rollout in a large-scale security analytics environment.

Qualifications

• 3+ years building backend or distributed systems in production.
• Proficiency in Go, Rust, or C/C++ with clean, maintainable code.
• 3+ years with databases like PostgreSQL or ClickHouse.
• Experience with event-driven systems: message delivery, duplicates, state, failure recovery.
• Clear written and verbal communication, with ability to discuss decisions with product/engineering teams.

Responsibilities

• Build behavioral detections across signals such as Access, Gateway, DNS, device posture, and data protection.
• Make risk output understandable by linking to event history and customer investigations.
• Design, deploy, and maintain robust distributed infrastructure with high availability and low latency.
• Collaborate with Product and engineering teams across Access, Gateway, Analytics and Reporting, Logs, etc.
• Ensure reliability through architecture reviews, capacity planning, and proactive health monitoring.

Skills

Go

Rust

C/C++

Tools

Kafka

Kubernetes

Job description

About Us

At the company, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. the company protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by the company all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. the company was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.

At the company, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in.

Available Locations: Austin Texas or New YorkAbout the Role

the company One brings together secure access, network connectivity, and data protection. Our products generate massive amounts of signals about how people and agents access applications, use the network, and handle data—but a security practitioner needs more than isolated events. They need to understand what happened, whether it is unusual, why it matters, and what to investigate next.

The UEBA (User and Entity Behavior Analytics) team builds the systems behind those answers. We ingest and evaluate the company One signals, produce high fidelity user-risk events, maintain risk scores, and make that information available to customer-facing experiences and other the company services. Today, we are focused on expanding our behavioral detections and improving the clarity of the resulting investigations and integrations.

As a Systems Engineer, you will build and operate production services in this pipeline. You might implement a detection for an unusual pattern of DNS activity or data movement, improve how events contribute to a user’s risk score, or make risk-event history easier for customers to investigate. You will own well-defined projects through design, implementation, testing, rollout, and operational follow-through, working with other engineers, Product, and partner teams across the company.

Responsibilities

• Build behavioral detections. Turn product requirements and available telemetry into production-ready detections across signals such as Access, Gateway, DNS, device posture, and data protection. Define the data dependencies, evaluation approach, and how you will assess signal quality before release.

• Make risk understandable. Help connect detection output to event history, logs, and customer-facing investigations so practitioners can see what triggered a finding and how a user’s risk changed.

• Design & Scale Infrastructure: Architect, deploy, and maintain robust distributed systems, focusing on high availability, low latency, and horizontal scalability.

• Collaborate across teams. Collaborate with Product and engineers in Access, Gateway, Analytics and Reporting, Logs, and other data-producing or data-consuming teams to agree on event contracts and deliver end-to-end functionality.

• Ensure Reliability. Participate in architecture reviews, capacity planning, and proactive system health monitoring to guarantee maximum uptime and resilience.

Desirable Skills, Knowledge, and Experience

• 3+ years of professional experience building, testing, and operating backend or distributed systems in production.

• Strong proficiency in at least one systems programming language (e.g., Go, Rust, C/C++) with a track record of writing clean, maintainable code.

• 3+ years of practical experience with databases and data-intensive services—for example, PostgreSQL, ClickHouse, or comparable relational or analytical stores.

• Experience reasoning about event-driven systems: message delivery, duplicate or late events, state, failure recovery, and safe changes to live consumers or APIs.

• Clear written and verbal communication, and an ability to work through technical decisions with product and engineering partners.

• Experience using metrics, logs, traces, profiling, and experiments to understand production behavior and validate improvements

• Bring strong opinions, clear judgment, and a willingness to revise your view when data, users, or production reality prove otherwise.

Bonus Points

• Experience with security analytics, fraud or abuse detection, identity, Zero Trust, SASE, or network telemetry.

• Familiarity with Kafka or other streaming systems; Kubernetes; and high-volume event processing.

• Experience with statistical baselines, anomaly detection, time-windowed aggregation, or evaluating false positives and detection coverage.

• Familiarity with DNS, HTTP, authentication events, data-loss-prevention signals, or endpoint-security integrations.

• Experience with distributed state, caches, object storage, or safe migration of a legacy production service.

Compensation

Compensation may be adjusted depending on work location and level.

New York Estimated Base salary $150,000 - $206,000.

Austin Texas Estimated Base salary $136,000 - $187,000.

What Makes the company Special?

We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.

Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by the company’s enterprise customers--at no cost.Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states.1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused servic