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Senior DevOps Engineer - Lab Infrastructure & Automation

OffSec Romania
Remote
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AI Summary

Lead design and implementation of scalable lab environments for cybersecurity training programs. Architect hybrid cloud infrastructure using OpenStack with generative AI automation. Drive infrastructure migrations, cost optimization, and secure network deployments for global lab operations.

Key Highlights
OpenStack expertise required for large-scale lab environment design
Hybrid cloud (AWS, Azure, GCP) infrastructure and migration experience
Generative AI integration for infrastructure automation and optimization
CI/CD pipelines with GitLab and Infrastructure as Code implementation
Key Responsibilities
Design and engineer complex multi-tier deployment environments for labs supporting vulnerable machines and realistic attack scenarios using OpenStack
Develop scalable infrastructure solutions across hybrid cloud and on-premises environments
Create solutions that reduce infrastructure costs while improving capabilities and performance
Design secure hosting networks and network topologies for realistic offensive cyber activities
Establish infrastructure standards, patterns, and best practices for lab environment deployment
Design deployment pipelines for complex multi-VM cybersecurity lab environments with sub-5 minute deployment targets
Implement static IP addressing and network isolation for thousands of concurrent user lab instances
Optimize lab deployment speed and resource utilization for peak performance
Create infrastructure supporting deployment of concurrent vulnerable machine instances at scale
Design workspace-based deployment models enabling team collaboration and private lab sessions
Design and implement CI/CD pipelines using GitLab for automated deployment of lab environments
Develop infrastructure automation using known Infrastructure as Code frameworks
Create self-service capabilities for Content Engineers to deploy and manage lab resources efficiently
Implement comprehensive monitoring, logging, and observability solutions for lab environments
Establish disaster recovery and business continuity procedures with minimal downtime requirements
Engineer and optimize OpenStack deployments as primary infrastructure platform
Implement multi-cloud strategies across AWS, Azure, and GCP where appropriate
Execute cloud cost optimization strategies and resource governance policies
Ensure security and compliance across all cloud and virtualization platforms
Design and implement efficient backup and snapshot strategies for lab environments
Design complex networks including VPNs, VLANs, and software-defined networking
Implement network segmentation and security controls appropriate for vulnerable lab environments
Configure and manage load balancers, firewalls, and network security appliances
Design network monitoring and traffic analysis capabilities
Ensure proper isolation between student lab environments while maintaining performance
Technical Skills Required
OpenStack Infrastructure as Code GitLab CI/CD Linux administration
Benefits & Perks
Full-time employment
Remote work from home office

Job Description


About OffSec


Founded in 2006 by the creators of Kali Linux, OffSec (formerly known as Offensive Security) is the leading provider of continuous professional and workforce development, training, and education for cybersecurity practitioners. OffSec’s distinct pedagogy and practical, hands-on learning help organizations fill the infosec talent gap by training their teams on today’s most critical skills.


Become a part of our global presence and work from anywhere. With team members in over 40 countries, we believe in inspiring people of all backgrounds and communities. The OffSec team is composed of diverse, internationally published authors, conference speakers, and seasoned information technology professionals from both the private sector and governments worldwide.


Excited about our mission and what we do? Apply and join us!


About The Job


OffSec is seeking an experienced DevOps Engineer to join our team and lead the design and implementation of complex, scalable lab environments that power our industry-leading cybersecurity training and certification programs. This senior-level position will work closely with Security Researchers and Platform Engineers to create sophisticated labs and vulnerable machine environments across hybrid cloud and on-premises infrastructure, enabling hands-on learning experiences for cybersecurity professionals worldwide.


The ideal candidate will bring deep expertise in OpenStack, modern DevOps practices, and the integration of generative AI to automate infrastructure management, with proven experience in large-scale migrations and cost optimization. You’ll design resilient, scalable, and secure infrastructure - leveraging AI-driven insights and prompt engineering - to deploy lab environments supporting thousands of concurrent users while maintaining the realistic attack scenarios our students depend on.


Duties And Responsibilities


Infrastructure & Migration

  • Design and Engineer complex, multi-tier deployment environments for labs supporting vulnerable machines and realistic attack scenarios using OpenStack
  • Develop scalable infrastructure solutions across hybrid cloud and on-premises environments
  • Create solutions that reduce infrastructure costs while improving capabilities and performance
  • Design secure hosting networks and network topologies that can be used to support realistic offensive cyber activities.
  • Establish infrastructure standards, patterns, and best practices for lab environment deployment


Lab Environment Specialization

  • Design deployment pipelines for complex, multi-VM cybersecurity lab environments with sub-5 minute deployment targets
  • Implement static IP addressing and network isolation for thousands of concurrent user lab instances
  • Optimize lab deployment speed and resource utilization for peak performance
  • Create infrastructure supporting the deployment of concurrent vulnerable machine instances at scale
  • Design workspace-based deployment models enabling team collaboration and private lab sessions


Platform Engineering & Automation

  • Design and implement CI/CD pipelines using GitLab for automated deployment of lab environments
  • Develop infrastructure automation using known Infrastructure as Code frameworks
  • Create self-service capabilities for Content Engineers to deploy and manage lab resources efficiently
  • Implement comprehensive monitoring, logging, and observability solutions for lab environments
  • Establish disaster recovery and business continuity procedures with minimal downtime requirements


Cloud & Virtualization Management

  • Engineer and optimize OpenStack deployments as primary infrastructure platform
  • Implement multi-cloud strategies across AWS, Azure, and GCP where appropriate
  • Execute cloud cost optimization strategies and resource governance policies
  • Ensure security and compliance across all cloud and virtualization platforms
  • Design and implement efficient backup and snapshot strategies for lab environments


Network Engineer & Security

  • Design complex networks including VPNs, VLANs, and software-defined networking
  • Implement network segmentation and security controls appropriate for vulnerable lab environments
  • Configure and manage load balancers, firewalls, and network security appliances
  • Design network monitoring and traffic analysis capabilities
  • Ensure proper isolation between student lab environments while maintaining performance


What We’re Looking For:

  • Strong production experience with OpenStack (required), including deployment, administration, optimization, and troubleshooting of large-scale environments.
  • 3+ years of experience in DevOps, Site Reliability Engineering, Infrastructure Engineering, or a similar role.
  • Proven experience designing and operating scalable infrastructure using Infrastructure as Code, CI/CD, and automation.
  • Hands-on experience with hybrid cloud environments (AWS, Azure, and/or GCP) and large-scale infrastructure migrations.
  • Strong Linux administration, networking (TCP/IP, VPNs, VLANs, firewalls), and virtualization knowledge.
  • Experience with Terraform (or similar IaC tools), GitLab CI/CD, Docker, and Kubernetes.
  • Comfortable using generative AI tools to improve automation, documentation, and operational efficiency.
  • Ability to independently own infrastructure initiatives, solve complex technical problems, and drive projects from design through implementation.
  • Experience optimizing infrastructure for scalability, reliability, and cost efficiency.
  • Experience supporting cybersecurity, training platforms, or lab environments is a strong plus.



Working conditions

This role is a full-time position. Work hours for this position are flexible and will be performed from a home office.


Direct reports

This position has no direct reports.


OffSec provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.


This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.


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