Lead Infrastructure Engineer

Siren Opt helps manufacturers make better, safer, and more reliable micro- and nano-materials. These materials are the building blocks of critical sectors of the global economy such as batteries, computer chips, aircraft components, and power systems. But, surging material demand and growing complexity are pushing production to unprecedented scales and speeds, leaving manufacturers effectively flying blind. Small, undetected variations during production lead to wastage, lower performance, higher costs, and safety risks.

Siren Opt is changing this. Our manufacturing intelligence platform scans materials, revealing critical internal information without damaging them. Using a novel combination of cold atmospheric plasma, physics-informed machine learning, and predictive analytics, Siren Opt creates unique, real-time fingerprints that capture material signals no other method can access. These insights give manufacturers unprecedented visibility into how materials behave as they are made.

We turn hidden data into actionable intelligence to help manufacturers reduce variability and thus increase yield and performance. The technology can be deployed as a standalone tool or integrated directly into factory production lines. Siren Opt is currently deploying early versions of its platform with some of the largest industrial manufacturers in the world across North America, Europe, and Asia. Our first commercial product will be released in 2026.

As a Lead Infrastructure Engineer at Siren Opt, you are more than just an expert in infrastructure—you are a pivotal team leader and technical authority. You demonstrate mastery across multiple domains, guide your team through complex challenges, and elevate standards for both technology and collaboration. You are the go-to resource for high-impact projects, adept at capacity planning, load testing, and implementing critical security improvements, ensuring minimal customer impact even during high-risk maintenance.

Your judgment is trusted, and your technical insight shapes major decisions and system architecture.

You set direction for your team, manage projects and resources with autonomy, and are sought out for technical and strategic guidance. You represent the infrastructure team in company-wide conversations, communicate clearly under pressure, and help others unblock their toughest problems. True leadership at Siren Opt means sharing credit for successes, accepting responsibility when things don’t go as planned, and focusing on developing others into leaders themselves.

The greatest contribution you make is elevating those around you, building a strong, collaborative culture where people work with and for each other.

• Lead the design, deployment, and ongoing improvement of our on-premises infrastructure, primarily built with Proxmox, Ceph, and open-source tooling
• Architect and maintain robust, scalable, and secure infrastructure solutions
• Oversee capacity planning, load testing, failover, and security hardening initiatives
• Guide strategic decision-making for tooling, processes, and infrastructure investments
• Manage and mentor a team of engineers, fostering continuous learning and professional growth
• Drive the hiring process for new team members, focusing on building a collaborative and high-performing team
• Develop and maintain automation with Terraform and Ansible for cluster and network management
• Lead incident response, root cause analysis, and remediation efforts with calm and clarity
• Represent the infrastructure team in cross-functional projects and company-wide discussions
• Continuously assess and improve operational procedures and documentation

• Deep experience managing on-premise clusters using Proxmox and Ceph
• Demonstrated expertise with infrastructure automation using Terraform and Ansible
• Strong background in network infrastructure design, implementation, and troubleshooting
• Proven ability to lead projects and teams, including hiring and mentoring engineers
• Experience with scaling, monitoring, failover, and disaster recovery for critical systems
• Track record of making…