Senior Platform Engineer | Lab Infrastructure and Security

The role

You will build and scale the infrastructure behind 10 global labs. This includes working across networking, hardware, cloud infrastructure, automation, and security to support sequencers, robots, and compute systems.

What you will do

• Design and scale networks powering sequencers, robotics, and compute across 10 global labs.
• Architect and deploy networking for new labs and expansions.
• Automate network provisioning and configuration with Terraform, Ansible, and CI/CD.
• Build and improve infrastructure supporting production hardware including sequencers, robots, GPU clusters, and storage.
• Build and maintain secure, automated device identity and access systems.
• Strengthen security of cloud infrastructure, web applications, and APIs.
• Build and operate vulnerability management across cloud infrastructure, lab devices, and application dependencies.
• Lead technical security incident response.
• Own production reliability including on-call responsibilities.

Required qualifications

• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience
• 7+ years of experience in platform, infrastructure, systems, or security engineering
• Strong experience automating infrastructure with Python, Terraform, Ansible, and CI/CD workflows using GitHub Actions
• Deep networking expertise, including routing, VLANs, firewalls, DHCP/DNS, VPNs (including Tailscale), and high-availability architectures
• Hands-on experience in AWS, including networking (VPC, site-to-cloud connectivity), IAM, and containerized workloads (ECS, Lambda)
• Excellent Linux systems administration skills
• Hands-on security engineering experience, including web/API penetration testing or red teaming, vulnerability and dependency scanning, and incident response
• Ownership of production reliability, including on-call responsibilities
• Experience using AI coding agents as a primary development tool
• Experience with PKI, certificate management, and secrets management
• Experience building observability for fleets of production devices and services

Nice to have

• Experience with pfSense or MikroTik

About the company

Plasmidsaurus is on a mission to accelerate new cures and promote a healthier planet by unlocking a new level of productivity for scientists. They provide sequencing services used by innovators, including Nobel laureates and Fortune 100 pharma.