Senior Infrastructure & Security Engineer

CDW; San Francisco (CA); Hybrid; USD 120,000 - 180,000; Full time

Job summary

A leading IT service provider is seeking a Senior Infrastructure & Security Engineer to support IT operations and security initiatives. This role, based in San Francisco, requires strong expertise in infrastructure management, configuration assessments, and security standards. Ideal candidates will have at least 7 years of experience in the field. The position offers a contract with the possibility of extension, involving both on-site and remote work options.

Qualifications

• Minimum 7 years of experience in IT infrastructure and security engineering.
• Strong understanding of SaaS, cloud, and on-premise configuration management.
• Excellent communication skills and a collaborative approach.
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• Proficiency in scripting languages and automation.

Responsibilities

• Perform configuration reviews and hardening assessments across SaaS applications.
• Administer network components including switches, routers, and firewalls.
• Implement and maintain endpoint protection and data loss prevention mechanisms.
• Maintain and evolve baseline configurations and compliance benchmarks with internal policies and standards.

Skills

Infrastructure management

Configuration management

Scripting (Python, PowerShell)

Network architecture

Security standards familiarity

Network architecture

Virtualization

Cloud-native services

Compliance standards (CIS/NIST/ISO)

Tools

Python

PowerShell

Job description

Senior Infrastructure & Security Engineer

This range is provided by CDW. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

• We can NOT provide sponsorship or work C2C. W2 ONLY.
• This is a 12-month contract through CDW working for our end client. There is potential for contract extension(s).
• Ability to work 4 days/week on-site in San Francisco (94158 zip) is required. 1 day/week remote work from home.

Overview

Our client is looking for a Senior Infrastructure & Security Engineer to support both IT operations and enterprise security initiatives at their San Francisco HQ. This role is designed for a senior-level professional with hands-on experience in infrastructure management and a strong focus on configuration assessments across SaaS platforms, cloud environments, and on-premise systems. The position reports directly to the Head of Infrastructure and Information Security and contributes to the reliability, security, and compliance of enterprise systems.

WHAT YOU'LL DO

Configuration & Security Assessments

• Perform configuration reviews and hardening assessments across SaaS applications, cloud services, and infrastructure components.
• Identify misconfigurations and gaps in security posture; recommend and implement remediation strategies.
• Maintain and evolve baseline configurations and compliance benchmarks aligned with internal policies and recognized standards.
• Support vulnerability management and incident response efforts with configuration insights and forensic analysis.

Infrastructure Operations

• Administer and troubleshoot network components including switches, access points, routers, firewalls, and VPNs.
• Manage virtualized environments and backup systems across hybrid infrastructure.
• Support cloud migration efforts and ensure secure deployment patterns across public cloud platforms.
• Collaborate with development and DevOps teams to ensure secure and scalable infrastructure design.

Security Engineering

• Implement and maintain endpoint protection, identity and access controls, and data loss prevention mechanisms.
• Automate security controls and monitoring using scripting and orchestration tools.
• Assist in audit preparation and documentation of security controls and operational procedures.

WHO YOU ARE AND WHAT YOU BRING

• Minimum 7 years of experience in IT infrastructure and security engineering.
• Strong understanding of SaaS, cloud, and on-premise configuration management.
• Proficiency in scripting languages (e.g., Python, PowerShell) and automation frameworks.
• Experience with network architecture, virtualization, and cloud-native services.
• Familiarity with compliance frameworks and security standards (e.g., CIS Benchmarks, NIST, ISO).
• Ability to work independently and manage multiple priorities in a fast-paced environment.
• Excellent communication skills and a collaborative approach to cross-functional work.

Seniority level

• Mid-Senior level

Employment type

• Contract

Job function

• Information Technology

Industries

• IT Services and IT Consulting and Biotechnology Research