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Hey, I'm Nate

DevSecOps Engineer | Security Automatio|

Nate Crisler

Senior MultiCloud Security Engineer (DevSecOps) at Genesys

I am a passionate DevOps/Security Engineer with 8+ years of experience in designing and building automated solutions. My expertise lies in strengthening security posture through an adversarial mindset and adherence to security best practices, improving observability, and reducing service downtime. I take a tailored approach to each project, crafting solutions that fit the specific needs and requirements of the business. I have a proven track record of successfully creating and implementing solutions, controls, and programs in an enterprise environment. Furthermore, I have experience working in an Agile environment and am knowledgeable in the Scrum framework. I am a quick learner and thrive in challenging environments.

Leadership
Team Work
Hard Working

Skills

Cloud & Infrastructure Security

Expert in securing cloud environments (AWS, Azure, GCP). Deep experience with IAM, Zero Trust, SIEM, and security automation.

Kubernetes & Containerization
Kubernetes & Containerization

Deploy, manage, and automate workloads in Kubernetes. Experienced in writing custom Kubernetes controllers & CRDs.

Docker & Container Security
Docker & Container Security

Architect scalable, secure containerized applications. Expertise in multi-stage, multi-arch builds, and runtime security.

Cloud Computing
Cloud Computing

Deep expertise in AWS, Azure, GCP—optimizing costs, security, and performance.

Observability & SIEM

SIEM architect (Splunk, ELK, Datadog, Grafana). Designed real-time monitoring & alerting pipelines.

Splunk & Security Analytics
Splunk & Security Analytics

SIEM expert—built enterprise-grade Splunk solutions for 10,000+ customers. Created dashboards, correlation searches, and automated security responses.

Grafana & Prometheus
Grafana & Prometheus

Master of Grafana, Loki, Tempo, and Prometheus. Built custom monitoring dashboards and metric exporters.

CI/CD & DevOps

Built scalable CI/CD pipelines using GitHub Actions, GitLab, Azure DevOps, and Jenkins. Automated end-to-end deployments.

Infrastructure as Code (IaC)

Terraform, Ansible, Helm—fully automated multi-cloud deployments with security-first principles.

HashiCorp Stack
HashiCorp Stack

Proficient with Terraform, Vault, Consul, and Nomad—built secure, scalable infrastructure.

Python & Go Development

Developed security automation, cloud-native apps, and integrations in Python and Go.

Networking & Security

Designed and secured enterprise networks (DNS, VPNs, Firewalls, Zero Trust). Expertise in BGP, load balancing, and traffic engineering.

Incident Response & Threat Hunting

Built automated threat detection systems. Deep experience with Red Team/Blue Team strategies, EDR, and forensic analysis.

PagerDuty & On-Call Management
PagerDuty & On-Call Management

Incident response automation with PagerDuty—reduced MTTR by 40%.

ITIL & Agile Development

ITIL v3 & Agile practitioner—led high-velocity security teams in fast-paced cloud environments.

Experiences

1
Lead Engineer | Founder
.nu11.info

April 2008 - Present, PNW (Remote)

💡 nu11.info is a cybersecurity and automation knowledge-sharing hub, focused on SIEM, cloud-native security, and best practices.

Responsibilities:
  • 🚀 SIEM & Observability: Built full-stack telemetry with Splunk, Grafana, Loki, Prometheus, DataDog, Sensu
  • 🔄 Automation & Infrastructure: Designed IaC workflows using Terraform, Ansible, Helm
  • ⚙️ CI/CD & DevOps: Built deployment pipelines (Azure DevOps, GitHub Actions, GitLab, Jenkins)
  • 🔐 Cloud Security & Compliance: Hardened cloud environments and automated security controls
Senior MultiCloud Security Engineer
Genesys Cloud Services

November 2021 - October 2022, Remote

🔐 Genesys powers customer experience solutions for 10,000+ companies worldwide.

Responsibilities:
  • 🛡 Threat Hunter & Defender: Identified, mitigated, and automated security monitoring across AWS, Azure, GCP
  • ⚡ Security Automation: Developed auto-healing security controls using HashiCorp tools (Vault, Terraform, Packer)
  • 🔍 SIEM, XDR & Response: Managed Splunk, UEBA, EDR, IDS/IPS, WAF, vulnerability management
  • 🚀 Red vs. Blue Teaming: Led PCI pentests and hardened multi-cloud environments
  • 🤝 Security Leadership: Advised DevOps & compliance teams, defined secure architectures
2
3
Senior Site Reliability Engineer (SRE)
KAR Global

April 2019 - November 2021, Carmel, Indiana (Remote)

🏎 Leading the transformation of digital infrastructure in the automotive wholesale industry.

Responsibilities:
  • ⚙️ Cloud Migration & Modernization: Moved legacy apps to AWS, OpenShift, and Kubernetes
  • 🔄 CI/CD & Automation: Developed scalable deployment pipelines, cutting downtime by 50%
  • 🔐 Security & Observability: Hardened cloud workloads, implemented real-time monitoring
  • 📡 HashiCorp Mastery: Vault, Terraform, Consul, Nomad – used for securing and scaling infra
Genesys Cloud Services

March 2014 - April 2019, Remote

🔎 Architecting security and telemetry solutions for enterprise-scale cloud services.

Senior Cloud Security & Telemetry Engineer

October 2017 - April 2019

  • 🚀 SIEM Powerhouse: Architected and managed Splunk Enterprise for PCI & SOC2 compliance
  • 🔍 Threat Detection & Analysis: Built custom searches, dashboards, and security event correlation
  • ⚡ Incident Response: Automated security workflows for real-time monitoring and alerts
Principal Telemetry Engineer

March 2014 - December 2017

  • 📊 Telemetry & Observability at Scale: Designed large-scale Splunk-based monitoring for cloud services
  • 🔗 Data Integration: Unified security, networking, and storage visibility across platforms
  • ⚡ Performance Optimization: Ensured high availability, fast response, and real-time insights
4
5
Network Operations Specialist | Tier 3 Lead
Lightbound

September 2011 - April 2014, Indianapolis, IN

🌐 Managed mission-critical infrastructure for enterprise network operations.

Responsibilities:
  • 🛠 Incident Response: Built automation to detect & replace failing network hardware in real-time
  • 🔗 Networking Expertise: Managed BGP, DNS, VPNs, and firewalls at scale
  • 📞 Telecom & VoIP: Supported enterprise-grade Asterisk PBX deployments

Education

Independent Research & Hands-On Learning
Ongoing
Self-Taught Engineer & Security Researcher
Western Governors University
2011-2015
Bachelor of Applied Science (B.A.Sc.) Network Security

Projects

Kubernetes Contributor
Kubernetes Contributor
Contributor March 2018 - Present

Contributed to Kubernetes core, improving container orchestration efficiency for production environments.

opensource kubernetes cloud professional
TensorFlow ML Framework
TensorFlow ML Framework
Developer June 2018 - Present

Developed and optimized ML workflows using TensorFlow for large-scale AI applications.

opensource machine-learning AI professional
Nocode - The Ultimate Developer Joke
Nocode - The Ultimate Developer Joke
Contributor Oct 2019 - Dec 2019

Contributed to the world’s most secure and efficient codebase—by writing nothing.

hobby fun experimental
Splunk Security App
Developer 2021 - Present

Built a custom Splunk app that enhances threat detection and response using real-time security telemetry.

professional security SIEM automation
Details
Cloud Security Automation
Architect & Developer 2022 - Present

Designed and built a security automation framework for AWS, Azure, and GCP, reducing security response time by 60%.

professional cloud-security automation devsecops
MeshRadio - ESP32 LoRa Communication
Developer 2023 - Present

Built a LoRa mesh network for off-grid communication using ESP32 and Meshtastic.

hobby opensource IoT ham-radio
Automated Threat Hunting Platform
Security Engineer 2020 - Present

Developed a machine learning-powered threat detection system to identify real-time security incidents in enterprise networks.

professional security AI automation

Accomplishments

Linux Foundation Certified System Administrator
Linux Foundation March 2018 - March 2019

  • Mastered Linux system administration, security, networking, and troubleshooting.
  • Hands-on experience in containerization, automation, and logging/monitoring.
  • Applied best practices for infrastructure, maintenance, and application lifecycle management.

View Certificate
Machine Learning & AI for Security
Coursera (Taught by Andrew Ng) June 2020 - Jan 2021

  • Gained expertise in neural networks, deep learning, and unsupervised learning techniques.
  • Applied machine learning to threat detection, anomaly detection, and security automation.
  • Built predictive models using Python, TensorFlow, and Scikit-Learn.

View Certificate
Grokking the System Design Interview
Educative.io Jan 2018 - Sept 2018

  • Mastered scalable architecture design for high-performance applications.
  • Focused on distributed systems, fault tolerance, load balancing, and real-world cloud architecture.
  • Applied concepts used in designing security monitoring and SIEM solutions.

View Certificate
Mastering Multithreading in Go (Golang)
Udemy Nov 2017 - Mar 2018

  • Developed highly concurrent, parallelized applications in Golang.
  • Optimized performance and responsiveness in distributed systems.
  • Applied multithreading concepts to automation, security tools, and bot building.

View Certificate