Cloud Observability and Performance Engineer

What we do:
Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware.

Who we are:
Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers.

As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs.

The Role:

We are looking for a Cloud Observability and Performance Engineer to join our Chaos Cloud Engineering team. In this role, you will design and implement observability, monitoring, and performance strategies for cloud-hosted microservices that manage and orchestrate endpoint security agents at scale. This position is critical to ensuring the reliability, visibility, and performance optimization of our backend systems that power cloud-based security operations for millions of endpoints worldwide.

Responsibilities: 

• Design, build, and maintain end-to-end observability for distributed cloud services (telemetry, logging, tracing, alerting). 
• Develop and optimize metrics pipelines and dashboards (e.g., Prometheus, Grafana, OpenTelemetry, Datadog).    
• Ensure high performance, availability, and scalability of agent management systems in production.    
• Collaborate with development, SRE, and security teams to troubleshoot production issues using observability tooling.    
• Define and implement SLOs, SLIs, and performance benchmarks for cloud components and services.    
• Instrument code and services to expose business-relevant metrics and latency bottlenecks.    
• Automate performance regression testing and anomaly detection.    
• Support proactive incident detection and real-time monitoring strategies across multi-cloud environments.
• Design, implement, and own a performance testing framework to validate system throughput, latency, and scalability under load.
• Define baseline performance thresholds and use observability tooling to monitor and validate results.    
• Provide root cause analysis and performance tuning recommendations.    

Skills and Qualifications:

• 5+ years of professional work experience in observability, site reliability, or cloud performance roles.    
• Strong experience with monitoring and observability stacks (e.g., Prometheus, Grafana, ELK, OpenTelemetry, Datadog, AWS CloudWatch).    
• Proficiency in cloud platforms (e.g., AWS, GCP, Azure) and cloud-native services (e.g., ECS, EKS, Lambda).  
• Experience with containerization and orchestration tools (e.g., Docker, Kubernetes).  
• Hands-on experience designing and implementing performance or load testing frameworks for distributed systems.
• Ability to define and validate throughput baselines, latency thresholds, and system limits under real-world traffic scenarios. 
• Solid knowledge of distributed systems, microservices, and performance debugging.    
• Proficiency in Python, Scala, or other language(s) for tooling and automation.    
• Familiarity with CI/CD pipelines, infrastructure as code (e.g., Terraform), and version control (Git).    
• Ability to participate in an on-call rotation to support observability infrastructure and assist with incident investigations.

Bonus Skills and Qualifications:

• Experience with endpoint security platforms or agent-based systems.    
• Familiarity with SIEM, security analytics, or cloud threat detection pipelines.    
• Background in networking performance, TLS handshake optimization, or load balancing.    
• Experience with SLA/SLO-driven operational excellence in high-scale environments.    
• Knowledge of additional languages, such as Go.
• Experience integrating performance tests into CI/CD pipelines and visualizing results using tools like Grafana, Datadog, or similar.
• Familiarity with tools such as k6, Locust, JMeter, Gatling, or custom-built performance testing solutions.

Why Join Us?

• Work on cutting-edge cloud infrastructure supporting global security products.    
• Be a core part of a team building resilient systems at internet scale.    
• Competitive salary, flexible work culture, and continuous learning opportunities.

Benefits:

 Halcyon offers the following benefits to eligible employees:

• Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents.

• 401k plan with a generous employer contribution.

• Short and long-term disability coverage, basic life and AD&D insurance plans.

• Medical and dependent care FSA options.

• Flexible PTO policy.

• Parental leave.

• Generous equity offering.

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.​

Base Salary Range: $150,000 - $185,000

Bonus Target: 10%

In accordance with applicable state and federal laws, the range provided is Halcyon’s reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and equity in the Company.

We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.