Senior Infrastructure & Security Engineer
Location: Onsite | Tempe, AZ
Employment Type: Full-Time
Compensation: 125k- 135k/year
We are seeking a hands-on Infrastructure & Security Engineer to take ownership of a mission-critical SaaS environment supporting highly regulated customers.
This role is ideal for someone who enjoys wearing multiple hats and thrives in smaller organizations where they can directly influence technology strategy while remaining close to the technical work.
In the near term, this individual will assume ownership of an established hybrid infrastructure environment spanning colocated data centers and Azure cloud services. They will be responsible for ensuring platform stability, understanding the current architecture, reducing operational risk, and maintaining security and compliance standards.
Longer term, this person will play a key role in modernizing the environment, helping drive the organization’s transition toward a cloud-first Azure architecture while improving security, scalability, automation, and operational maturity.
This position reports closely into engineering leadership and will serve as the primary internal owner of infrastructure, security, and compliance initiatives.
What You’ll Be Doing
- Assume day-to-day ownership of a hybrid infrastructure environment spanning colocated data centers and Microsoft Azure
- Maintain uptime, reliability, backups, disaster recovery processes, and overall operational health
- Administer Windows Server environments, Active Directory, Microsoft Entra ID, networking, firewalls, VPNs, and related infrastructure services
- Evaluate existing infrastructure, identify risks, and document current-state architecture, dependencies, network diagrams, and operational procedures
- Coordinate hardware lifecycle planning, infrastructure upgrades, and modernization initiatives
- Partner with engineering leadership to support software deployments and infrastructure requirements
- Own operational security monitoring, incident response, vulnerability management, endpoint security, and access control initiatives
- Maintain and improve security controls across infrastructure, cloud environments, and internal systems
- Support SOC 2 Type II compliance efforts, including evidence gathering, audit preparation, policy maintenance, remediation activities, and customer security questionnaires
- Help define and execute the roadmap from legacy infrastructure to a modern Azure-based architecture
- Support infrastructure-as-code, automation, cloud governance, and CI/CD deployment initiatives
- Assist with cloud migrations, workload modernization, and operational improvements
- Partner with engineering teams to ensure cloud solutions align with business, security, scalability, and reliability objectives
- Serve as the primary technical owner of infrastructure and security vendors, including oversight of managed service providers
- Coordinate vendor activities and ensure compliance with established security, operational, and service expectations
What Success Looks Like
First 30-60 Days
- Develop a comprehensive understanding of the current infrastructure environment
- Document systems, dependencies, network architecture, assets, and operational processes
- Assess infrastructure, security, and operational risks
- Establish ownership of day-to-day operations and support processes
- Build strong working relationships with engineering leadership, vendors, and key stakeholders
First 6-12 Months
- Improve infrastructure stability and operational maturity
- Reduce technical and security risk across the environment
- Advance Azure migration and cloud modernization initiatives
- Strengthen disaster recovery, monitoring, and compliance processes
- Implement automation and infrastructure improvements where appropriate
- Help establish the foundation for future infrastructure and DevOps growth
Qualifications
- Experience managing production infrastructure environments across both on-premises and cloud platforms
- Experience with Azure cloud migrations, CI/CD pipeline deployment, and transitioning legacy on-premises environments to modern cloud-based architectures
- Experience working in a SaaS environment
- Strong Microsoft Azure administration experience
- Experience supporting Windows Server, Active Directory, Microsoft Entra ID, networking, and firewall technologies
- Hands-on security operations experience, including monitoring, vulnerability management, incident response, and access controls
- Experience supporting SOC 2 or similar compliance frameworks within a software or SaaS organization
- Ability to work independently and take ownership of infrastructure decisions and outcomes
- Strong documentation and communication skills
- Colocation or traditional data center experience
- Infrastructure-as-code and automation experience
- OIDC, SAML, SSO, and identity federation experience
- Exposure to Azure Defender, Microsoft Sentinel, or similar security platforms
- Experience working in small to mid-sized organizations where individuals are expected to operate across multiple disciplines
- AZ-500, CISSP, SC-900, or related certifications
Ideal Candidate
We’re looking for someone who enjoys solving problems, isn’t afraid to roll up their sleeves, and has successfully balanced infrastructure, security, and cloud responsibilities in a smaller environment.
The ideal candidate combines strong operational instincts with modern cloud and security expertise, understands how to support legacy systems while building toward the future, and is excited by the opportunity to help shape the next phase of a growing SaaS platform.