Senior IT Systems Administrator

Harness•San Francisco, CA

7d•Hybrid

About The Position

Harness is led by technologist and entrepreneur Jyoti Bansal, founder of AppDynamics (acquired by Cisco for $3.7B). The company has raised ~$240M in Series E venture funding, is valued at $5.5B, and backed by top investors including Goldman Sachs, Menlo Ventures, IVP, Google Ventures, J.P. Morgan, Capital One Ventures, Citi Ventures, ServiceNow, Splunk Ventures and more. Harness is building the industry’s leading AI-powered software delivery platform, enabling teams worldwide to build, test, and deliver software faster, safer, and more reliably. Writing code is only 30–40% of the engineering lifecycle — the rest involves testing, deployments, security, compliance, and optimization. Harness brings AI and automation to this outer loop, turning complex, time-consuming workflows into streamlined processes at massive global scale. The platform includes industry leading products in CI/CD, Feature Flags, Cloud Cost Management, Service Reliability, Chaos Engineering, Software Engineering Insights, Internal Developer Experience, and API discovery, observability, governance, and runtime protection. Over the past year, Harness powered 128M deployments, 81M builds, 1.2T API calls protected, and $1.9B in cloud spend optimized, helping customers like United Airlines and Choice Hotels accelerate releases by up to 75% and achieve 10x DevOps efficiency. With employees in over 25 countries, Harness is shaping the future of AI-driven software delivery — and we’re looking for exceptional talent to help us move even faster. Position Summary Reporting to the Director of IT Infrastructure, the Senior IT Systems Administrator plays a critical role in owning, scaling, and securing Harness’ corporate IT environment. This is a hands-on, senior individual contributor role focused on identity, SaaS platforms, device management, automation, and security in a fast-growing, global company. This position is ideal for someone who has already operated at scale, is comfortable owning systems end-to-end, and thrives in environments where automation, security, and user experience matter.

Requirements

5+ years in a similar role in a growing or enterprise environment
Experience supporting 1,000+ end users across multiple locations
Proven ability to operate independently and own systems without heavy oversight
Deep experience with: Google Workspace Okta (SAML/OIDC, SCIM, Lifecycle Management, Workflows) Atlassian, Slack, BetterCloud Kandji MDM (profiles, patching, library items)
Strong macOS and Windows 11 administration experience
Solid understanding of networking fundamentals (DNS, routing, hardware basics)
Strong grasp of access controls, RBAC, and security best practices
Experience applying security frameworks in day-to-day operations
Comfortable balancing security requirements with user experience
Demonstrated success leading IT projects (email migrations, SaaS rollouts, VoIP, security initiatives)
Excellent communication skills with both technical and non-technical audiences
Clear documentation and structured problem-solving approach
The position requires a balance of proactive project work and reactive support, with the flexibility to pivot between long-term initiatives and immediate technical issues.

Nice To Haves

Scripting experience (Bash, PowerShell, Python)
Experience integrating or leveraging AI-driven IT tools
Prior experience in high-growth or SaaS companies

Responsibilities

Administer identity and access management platforms (Okta, SSO, SCIM, lifecycle workflows)
Manage and optimize SaaS applications (Google Workspace, Microsoft 365, Atlassian, Slack, etc.)
Lead device management for macOS and mobile platforms using MDM solutions (Kandji (Iru), ManageEngine)
Serve as a primary SME for core corporate IT systems
Design, build, and maintain automation workflows using Workato, BetterCloud, Okta Workflows, and similar tools
Identify manual or error-prone processes and proactively replace them with scalable automation
Partner with internal teams to deliver automation that improves efficiency and employee experience
Maintain a security-first mindset across identity, endpoints, SaaS, and access controls
Support and improve endpoint and infrastructure security (SentinelOne, Qualys, RBAC models)
Participate in system monitoring, incident response, and root-cause analysis
Assist with networking and infrastructure initiatives (Meraki, Cisco)
Lead and execute IT projects from design through delivery
Provide Tier-3 level troubleshooting and escalation support
Create and maintain high-quality documentation, runbooks, and knowledge base articles
Participate in a rotating on-call schedule
Ability to travel between company offices on an as-needed basis to support infrastructure projects, deployments, and on-site initiatives, including office buildouts, technology setups, and the resolution of complex on-site issues
Perform other duties as assigned, consistent with the role