Infrastructure Architect

Zensar Technologies; Redwood City (CA); On-site; USD 170,000 - 230,000; Full time

Job summary

Zensar Technologies in Redwood City, CA, seeks an Infrastructure Architect to own the end-to-end architecture for a multi-tower managed services environment spanning cloud, on-premises virtualization, storage, identity, network, endpoint management, and SaaS collaboration.

You will define standards, review changes, lead capacity planning, and ensure architecture coherence across Okta/Entra ID, AD, Cisco, Intune, and ServiceNow, delivering governance-ready designs for large enterprise accounts.

Qualifications

• Minimum 10+ years in IT infrastructure engineering with multi-domain architecture.
• Experience across Azure and AWS and enterprise backup/storage platforms like Cohesity.
• Strong identity and access architecture: Okta, Active Directory, Entra ID, SSO.
• Enterprise network design including Cisco switches and security.
• ITIL ITSM experience, ServiceNow, and cross-tower governance.
• Ability to communicate architecture trade-offs to technical and non-technical stakeholders.

Responsibilities

• Own target-state infrastructure architecture across cloud, virtualization, storage/backup, identity, network, endpoint management, and SaaS collaboration platforms.
• Set architecture standards and design patterns for cross-tower engineers to ensure consistency.
• Review changes at CAB and partner with CMDB/Configuration Management leads.
• Act as design-authority escalation point for Major Incidents and problems at architecture level.
• Lead capacity and scalability planning across the estate and growth trends.
• Define reference architecture for identity (Okta + AD/Entra ID) with SSO.
• Own the design for cross-tower engagements (e.g., AWS Connect IVR).
• Collaborate with ServiceNow ITSM to ensure architecturally sound processes.
• Produce and maintain architecture documentation for the account.
• Represent architecture in governance and customer discussions.

Skills

Infrastructure architecture

Cloud: Azure & AWS

Identity & IAM

Network design (Cisco)

ITIL/ITSM (ServiceNow)

SOW/multi-tower delivery

Tools

Cohesity

Okta

Active Directory / Entra ID

Intune

ServiceNow

Windows Server / VMware ESXi

Azure/AWS tooling

Job description

We’re a bunch of hardworking, fun-loving, people-oriented technology enthusiasts. We love what we do, and we’re passionate about helping our clients thrive in an increasingly complex digital world. Zensar is an organization focused on building relationships with our clients and with each other—and happiness is at the core of everything we do. In fact, we’re so into happiness that we’ve created a Global Happiness Council, and we send out a Happiness Survey to our employees each year. We’ve learned that employee happiness requires more than a competitive paycheck, and our employee value proposition—grow, own, achieve, learn (GOAL)—lays out the core opportunities we seek to foster for every employee. Teamwork and collaboration are critical to Zensar’s mission and success, and our teams work on a diverse and challenging mix of technologies across a broad industry spectrum. These industries include banking and financial services, high-tech and manufacturing, healthcare, insurance, retail, and consumer services. Our employees enjoy flexible work arrangements and a competitive benefits package, including medical, dental, vision, 401(k), among other benefits. If you are looking for a place to have an immediate impact, to grow and contribute, where we work hard, play hard, and support each other, consider joining team Zensar!

What is this role about?

Owns the end-to-end technical architecture for managed services engagement — spanning cloud (Azure/AWS), compute and virtualization (Windows/ESXi, Linux), storage and backup (Cohesity), identity (Okta, Active Directory & Entra ID), network (Cisco), endpoint management (Intune), SaaS collaboration (Office 365, Exchange, SharePoint, Box, Zoom, Teams), contact center (AWS Connect), and the ITSM/ServiceNow process layer — ensuring every tower's design decisions fit together as one coherent, secure, and supportable platform.

Infrastructure Architect

Location: Redwood City, CA

Key Responsibilities

• Own the target-state infrastructure architecture across cloud, virtualization, Linux, storage/backup, identity, network, endpoint management, and SaaS collaboration platforms for the account
• Set architecture standards and design patterns that individual tower engineers (Cloud, Windows/Linux, Storage & Backup, Network, IAM) build to, ensuring cross-tower consistency and no conflicting designs
• Review and approve high-risk/high-impact changes at the Change Advisory Board from an architectural risk perspective, partnering with the Change & Configuration Management lead
• Act as the design-authority escalation point for Major Incidents and Problem Management where root cause sits at an architecture/design level rather than a single component
• Lead capacity and scalability planning across the estate, reconciling SOW-committed baselines (such as VM counts and the ~50TB backup estate) against actual deployed footprint and growth trends
• Define the reference architecture for identity (Okta plus Active Directory/Entra ID), ensuring SSO, lifecycle, and conditional access design is coherent across both platforms
• Own the technical design for one-time/project engagements that intersect multiple towers, such as the AWS Connect IVR deployment, ensuring the delivered solution fits the long-term architecture rather than becoming a one-off outlier
• Partner with the ServiceNow ITSM Administrator and Service Management Leads to ensure CMDB, Incident, Problem, Change, Knowledge, and Service Request processes are architecturally sound and reflect the real environment
• Produce and maintain architecture documentation — reference diagrams, standards, and decision records — for the account
• Represent the technical architecture in account governance (Weekly/Monthly Service Reviews) and customer-facing technical discussions

Required Skills & Experience

• 10+ years in IT infrastructure engineering, with at least 3-5 years in an architect or technical design-authority role spanning multiple domains
• Broad working knowledge across Azure and AWS, Windows Server/VMware ESXi, Linux, and enterprise backup/storage platforms (Cohesity or equivalent)
• Strong identity and access architecture background: Okta (or equivalent IDP), Active Directory, and Entra ID/Azure AD, including hybrid identity and SSO design
• Solid understanding of enterprise network architecture: Cisco switching, firewalls, wireless, and VLAN/segmentation design
• Experience architecting or overseeing endpoint management (Intune/MDM) and SaaS collaboration platforms (Microsoft 365, Box, Zoom) at enterprise scale
• Demonstrated experience operating within a formal ITIL-based ITSM framework — Incident, Major Incident, Problem, Change, Knowledge, Service Request, and Configuration Management — ideally on ServiceNow
• Experience designing or reviewing contact center/telephony solutions (AWS Connect or equivalent) as a secondary/contributing skill
• Strong stakeholder management and the ability to communicate architecture trade-offs to both technical teams and account/customer governance
• Experience operating under a managed-services SOW with defined coverage windows, deadband/volumetric clauses, and multi-tower delivery teams

Preferred Qualifications

• Experience in a life-sciences/pharma environment with GxP-relevant architecture and change-control rigor
• Architect-level certification such as Azure Solutions Architect Expert, AWS Certified Solutions Architect, VCAP, or CCDP/CCDE
• ITIL 4 Managing Professional or equivalent
• Prior experience as a technical escalation point across a distributed, multi-tower managed services delivery team

Representative Tools & Technologies

Zensar believes that diversity of backgrounds, thought, experience, and expertise fosters the robust exchange of ideas that enables the highest quality collaboration and work product. Zensar is an equal opportunity employer. All employment decisions shall be made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law. Zensar is committed to providing veteran employment opportunities to our service men and women. Zensar is committed to providing equal employment opportunities for people with disabilities or religious observances, including reasonable accommodation when needed. Accommodation made to facilitate the recruiting process are not a guarantee of future or continued accommodation once hired.

All applicants must be legally authorized to work with Zensar. Visa sponsorship may be available for qualified applicants for certain positions.

Zensar values your privacy. We’ll use your data in accordance with our privacy statement located at: https://zensar.com/privacy-notice