Mark Stewart

CS & TAM Leader, AMER

New York City Metropolitan Area

About

Visionary technology executive with 15+ years bridging deep technical expertise and strategic business leadership. Proven track record of transforming enterprise customer relationships into long-term value partnerships at scale, spanning hands-on infrastructure architecture through building and leading high-performing TAM and Customer Success organizations across the Americas. Equally fluent in the language of the boardroom and the data center, translating complex platform capabilities into compelling business outcomes that accelerate adoption, reduce risk, and drive revenue. As a Field CTO, brings an operator's instinct for what enterprises actually need, a strategist's view of where technology is heading, and a leader's ability to inspire both customers and internal teams to move with confidence and clarity. Technology Strategy Enterprise Architecture · Platform Adoption · Value Realization Frameworks · Digital Transformation Executive Leadership Field CTO Engagement · C-Suite Advisory · Cross-Functional Alignment · Thought Leadership Customer Success TAM/CSM Program Design · Lifecycle Management · Account Health · Retention & Expansion Revenue Influence Pipeline Acceleration · Sales Partnership · Capacity Planning · Scalable Coverage Models Technical Depth Splunk/SIEM · Cloud Infrastructure · Data Analytics · Security & Compliance · Virtualization Org Development Team Building · Coaching · Performance Mgmt · Strategic Advisor Enablement

Experience

  • CS & TAM Leader, AMER | Strategy, Value Realization & Customer Success at Cisco
    Oct 2024 - Present · 1 yr 9 mos

    • Function as a strategic technology executive for Splunk's largest enterprise accounts across the Americas, setting the technology vision, defining adoption architecture, and aligning platform capability to measurable business transformation outcomes. • Designed and launched the Value Realization Path (VRP), a proprietary strategic framework that restructures how enterprise customers define, pursue, and measure technology value, shifting the engagement model from reactive support to proactive business partnership. • Redefined the TAM operating model from technical account management to strategic advisory, building a team capable of leading CXO conversations on platform strategy, risk posture, and long-term technology investment decisions. • Serve as the connective layer between Sales, Renewals, Product, and Engineering, synthesizing field intelligence into strategic input that shapes platform roadmap direction and go-to-market priorities. • Architect scalable coverage and capacity frameworks that optimize how technical resources are deployed across AMER, ensuring the highest-impact accounts receive the deepest engagement while maintaining organizational efficiency. • Drive enterprise data optimization strategy through the Data Advisor program, helping customers architect smarter data management practices that reduce platform costs, improve signal-to-noise across their environment, and unlock measurable business value from their existing investments. • Contribute to the design and development of content for Global Customer Advisory Board (GCAB) sessions, shaping the narratives and strategic frameworks presented to senior customer executives and helping define how Splunk communicates its technology vision at the highest levels.

  • Splunk (7 yrs 11 mos)
    • Senior Manager, Global Subscription Services
      May 2022 - Aug 2025 · 3 yrs 4 mos

      • Served as the principal technical architect for the design and buildout of both the Splunk Assigned Expert Services and TAM Services programs, defining the service frameworks, engagement models, delivery standards, and operational structures that scaled these offerings into core components of Splunk's customer success portfolio. • Led global design and execution of Splunk's subscription services delivery model, defining the architecture of how technical engagement, adoption programming, and lifecycle management operate at enterprise scale across worldwide accounts. • Built predictive customer health frameworks that transformed reactive churn management into a proactive, data-driven retention strategy, directly improving gross and net retention across the global portfolio. • Established a direct feedback loop with Splunk's Product and Engineering leadership, translating field-observed customer friction and unmet use cases into platform roadmap priorities and serving as the strategic voice of the customer at the highest level. • Recruited, developed, and operated a globally distributed team of technical account managers and senior consultants, creating a talent pipeline aligned to the next generation of strategic customer advisory. • Exclusively served Splunk's top 200 ARR accounts, providing the highest tier of technical advisory and strategic engagement to the company's most valuable and complex enterprise relationships.

    • Global Staff Architect
      Jan 2020 - May 2022 · 2 yrs 5 mos

      • Designated enterprise Subject Matter Expert for Splunk Core architecture, called in by field teams to resolve the most complex technical challenges, assess platform health, and set the architectural direction for large-scale deployments across Fortune 500 environments. • Drove architecture reviews and platform design sessions that shaped how enterprises scaled Splunk across distributed, clustered, and hybrid environments, influencing multi-year technology investment decisions and platform expansion strategy. • Elevated the technical credibility of the entire field organization by codifying engineering best practices, mentoring consultants, and establishing delivery standards across ITOps, Security, Business Analytics, and IoT use cases.

    • Senior Consultant
      Oct 2017 - Jan 2020 · 2 yrs 4 mos

      • Architected and delivered full-scale Splunk platforms for enterprise clients, designing distributed search and indexing topologies, data ingestion pipelines, security encryption frameworks, and advanced analytics environments that solved real business problems across ITOps, Security and Compliance, and IoT. • Owned the full technology delivery lifecycle from solution architecture and environment design through deployment, integration, and customer enablement, ensuring every implementation translated directly into operational value. • Established a reputation for bridging deep technical execution with executive communication, consistently translating complex platform architecture into clear business narratives that accelerated customer confidence and drove platform expansion.

  • Hewlett Packard Enterprise (4 yrs 2 mos)
    • Staff Technical Consultant
      Oct 2015 - Oct 2017 · 2 yrs 1 mo

      • Delivered enterprise technology solutions across network, application, and platform domains for global clients, leading technical assessment, architecture design, and multi-phase implementation with a focus on enhancing the availability, performance, maintainability, and long-term agility of each customer's environment. • Operated at the intersection of technology and business, demonstrating a broad understanding of market dynamics, commercial drivers, and technical strategy while maintaining deep expertise in core focus areas, translating that dual perspective into proposals and solutions that resonated at both the engineering and executive level. • Led cross-functional consulting teams through complex, multi-technology delivery engagements, owning everything from requirements gathering and architecture through implementation, automation design, and root cause resolution across diverse enterprise environments. • Contributed to business growth by producing proposals for large-scale engagements, presenting technical solutions within the context of customer sales campaigns, and expanding the HPE portfolio through the identification and architecting of solutions for adjacent client challenges.

    • Senior Technical Consultant
      Sep 2013 - Oct 2015 · 2 yrs 2 mos

      • Architected and implemented HP Autonomy enterprise solutions for large-scale environments with 10,000+ users, owning the full delivery lifecycle from SOW and site audit through requirements gathering, customization design, solution deployment, and client knowledge transfer. • Designed and built advanced automation frameworks using Batch, VB, SQL, and Java for mass enterprise deployments, data restoration, and account management, developing a methodology for turning complex, repeatable technical processes into scalable, reliable operational capabilities. • Engineered enterprise infrastructure spanning SAN storage, ESXi virtualization, and SSO identity integration via SAML and MS-ADFS, staging production-replica environments for POC and pilot validation to ensure architectural integrity before enterprise rollout. • Served as a technical mentor and trusted advisor to client organizations, translating complex platform architecture into actionable guidance that accelerated adoption, reduced implementation risk, and built lasting internal capability within each customer's technical teams.

  • Certified Systems Engineer at CommVault
    Jan 2012 - Sep 2013 · 1 yr 9 mos

    • Designed and implemented enterprise data protection and availability architectures, engineering multi-site backup strategies incorporating tape multiplexing, point-in-time snapshot recovery, WAN replication, and Round Robin load distribution to meet stringent business continuity and recovery time objectives. • Architected network and security frameworks spanning firewall design, proxy configurations, port forwarding, and VSS-based system state protection, developing a foundational understanding of how enterprise infrastructure must be designed to remain resilient, secure, and recoverable under real-world failure conditions. • Built automation tooling and custom scripting to solve complex operational challenges at scale, and developed deep expertise in virtualization, Hyper-V cluster management, and network diagnostics that would underpin every enterprise architecture engagement that followed.

  • Technical Consultant at CATS Technology Solutions Group
    Jul 2011 - Dec 2011 · 6 mos

    • Delivered end-to-end enterprise infrastructure solutions for client organizations, designing and deploying Windows Server environments, VMware ESXi virtualization platforms, Microsoft Exchange, Active Directory, and network security architectures that formed the operational backbone of each business. • Built and implemented business continuity and disaster recovery frameworks encompassing SAN and NAS storage, backup strategy, VPN and remote access design, and MPLS and Telco circuit integration, developing broad infrastructure fluency across the full technology stack from the ground up. • Developed scripting and automation capabilities to streamline deployment and configuration management at scale, and contributed to capacity planning, security policy design, and systems monitoring practices that established early disciplines in operational excellence.