Senior IT Engineer

San Diego Stealth Startup; San Diego (CA); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Equity package

Competitive compensation

Flexible work-life balance

Job summary

San Diego Stealth Startup is seeking a Senior IT Engineer to own day-to-day operations of core infrastructure in our San Diego office. You will manage identity, Microsoft 365, Entra ID, and Intune, while supporting SOC 2 and future SOX controls. You will also drive IT projects end-to-end.

The role requires 6+ years of production IT experience, strong documentation, and hands-on networking. Onsite work five days a week with collaboration across IT and business teams.

Qualifications

• 6+ years in corporate IT operations or systems administration with independent ownership of production systems.
• Hands-on experience with Microsoft 365 and Entra ID, an identity provider such as Okta, and an MDM such as Intune.
• Hands-on network knowledge (switching, VLANs, Wi-Fi, firewalls, VPN) and ability to troubleshoot methodically.
• Experience supporting audits or operating IT controls such as access reviews, change management, or evidence collection.
• Strong written documentation habits and clear communication with non-technical users.

Responsibilities

• Administer core business infrastructure (Okta, M365, Entra ID, Intune) and improve identity lifecycle.
• Own onboarding/offboarding processes and coordinate with People Ops.
• Support network (Meraki, FortiGate) and assist with VPN, Wi-Fi, and security posture.
• Maintain endpoint security tooling and device compliance; serve as backup for core systems.
• Operate SOC 2 controls and assist with finance app controls and audit logging.
• Lead IT projects end-to-end with minimal supervision.

Skills

IT operations

Identity mgmt

MS 365/Entra ID

Network troubleshooting

Education

Bachelor's degree in IT/CS

Tools

Okta

Microsoft 365

Entra ID

Intune

Meraki

FortiGate

CrowdStrike

Job description

We are a rapidly growing, stealth biotech founded by leading industry experts to pioneer first-of-its-kind technology at the intersection of life sciences tools and diagnostics. Our mission is to redefine what diagnostic testing can reveal and enable advancements in patient care that were previously out of reach. Join us and help turn this vision into reality.

Position Overview

The Senior IT Engineer is a hands‑on IT operational role on a small team supporting a fast‑growing company. This role reports to the Director of IT and works closely with the IT Manager, Operations, Finance, and People Ops. The IT team is based onsite in our San Diego office 5 days/week.

You will own day‑to‑day operations of our core business infrastructure: identity, Microsoft 365, endpoint compliance, and the network alongside the IT Manager. You will also run the IT controls that support SOC 2 and future finance and SOX requirements.

Key Responsibilities

Core business infrastructure

• Administer and improve Okta, Microsoft 365 (Exchange Online, Entra ID, SharePoint), and Intune endpoint management for Windows and macOS.
• Own the identity lifecycle: role‑based access at onboarding, the standard machine build, and clean, timely offboarding, in coordination with People Ops.
• Support the network (Meraki, FortiGate) with the IT Manager as lead: diagnose connectivity, Wi‑Fi, and VPN issues, make routine changes, and upscale to our network partner when needed.
• Maintain endpoint security tooling and device compliance in coordination with the security program.
• Serve as a reliable backup across all core systems, so the business keeps running when other team members are out.

IT controls and compliance

• Operate SOC 2 controls as routine process: access reviews, change records, evidence collection, and remediation.
• Build and operate IT controls for finance applications as they migrate in house, including access provisioning and review, separation of duties, change control, and audit logging.
• Build our business continuity and disaster recovery program, including backup design and tested recovery.

Operations and documentation

• Handle escalated and complex service desk requests. Address recurring requests through root cause analysis and implementation of automated processes at onboarding, or through knowledge base articles and self‑service solutions.
• Administer company AI tools such as Claude and ChatGPT, including access, licensing, usage guardrails, and use AI to automate IT work.
• Write and maintain clear documentation, runbooks, and procedures that meet audit approval standards.
• Lead IT projects end to end with minimal supervision.

Qualifications

Education: Bachelor's degree in Information Technology, Computer Science, or a related field, or an equivalent combination of education, training, and direct experience.

Required

• 6+ years in corporate IT operations or systems administration, with independent ownership of production systems.
• Deep hands‑on experience with Microsoft 365 and Entra ID, an identity provider such as Okta, and an MDM such as Intune.
• Hands‑on network knowledge (switching, VLANs, Wi‑Fi, firewalls, VPN) and the ability to troubleshoot methodically.
• Experience supporting audits or operating IT controls such as access reviews, change management, or evidence collection.
• Strong written documentation habits and clear communication with non‑technical users.

Preferred

• SOC 2, SOX ITGC, or NIST CSF experience.
• Experience with finance system controls (for example NetSuite), including separation of duties.
• Backup and disaster recovery design and testing.
• Scripting for automation (PowerShell, Python).
• Experience with CrowdStrike, zero‑trust network access, and Jira Service Management.
• Experience in a biotech, life sciences, or other regulated, fast‑growing companies -- prior start up experience desired.

What Success Looks Like

• Core systems are reliable and documented well enough that the company runs smoothly even when the rest of the IT team is out.
• New hires get least privileged access and a working laptop on day one, and departures are fully offboarded the same day.
• SOC 2 controls operate continuously, with evidence produced as part of normal work rather than gathered after the fact.
• Finance application controls and a tested disaster recovery plan are in place ahead of audit and growth needs.
• Recurring requests decline over time because their root causes get fixed.

Why Join Us

• A modern tech stack, no legacy cleanup. Okta, Microsoft 365, Intune, CrowdStrike, and zero‑trust network access are already in place.
• AI is part of how we work. The IT team uses AI tools daily, and you'll help shape how the whole company adopts them safely.
• Greenfield work you'll own. Disaster recovery, finance controls, role‑based access, and the standard build.
• Career‑building compliance experience. Hands‑on SOC 2 Type 2 and early SOX readiness.
• Real scope. A small IT team at a company that is growing fast, with direct access to IT leadership.
• Room to grow. Exposure to cloud infrastructure, life sciences data, and a new headquarters buildout.
• A mission worth joining. An experienced leadership team building something new in life sciences tools and diagnostics.

We offer competitive compensation and equity package, comprehensive benefits, and flexibility to support work‑life priorities.

Radian Bio is an equal opportunity employer. We thrive on diversity and collaboration.