AbdulRazaq Haruna
Verified Expert in Engineering
Enterprise Architect and Developer
Houston, United States
Toptal member since October 20, 2026
At McKesson, AbdulRazaq led enterprise architecture and program execution for a $1 billion healthcare acquisition supporting more than 1,500 personnel. He is a principal enterprise architect and technology strategy adviser with over 10 years of experience in M&A integration and enterprise transformation. AbdulRazaq's expertise spans TOGAF 9, SAFe, and Agile Release Trains for healthcare, telecommunications, energy, and government.
Portfolio
Experience
- Leadership - 20 years
- Operations & Business Support Systems (OSS/BSS) - 20 years
- Enterprise Architecture - 20 years
- Management - 20 years
- Strategic Leadership - 20 years
- Program Management - 20 years
- Mergers & Acquisitions (M&A) - 20 years
- Artificial Intelligence (AI) - 3 years
Work Experience
Digital Strategy, Enterprise Architecture, & Transformation Adviser
ExxonMobil
- Helped establish and mature ExxonMobil Information Technology's Enterprise Architecture Center for Enablement, creating reusable practices, governance processes, and architecture capabilities.
- Developed the charter and governance approach for a TOGAF-based Architecture Review Board and Enterprise Architecture Council to strengthen technology decision-making.
- Authored an IT Business Architecture Playbook, establishing repeatable methods, templates, and standards for business capability modeling, strategy articulation, and architecture roadmapping.
- Developed architecture roadmaps and value stream models for capital projects, gas power marketing, and upstream, translating business and digital strategies into actionable technology priorities.
- Applied Software AG Alfabet and ARIS to develop business capability models, architecture artifacts, strategy-to-execution traceability, and enterprise transformation roadmaps.
- Created architecture workbench processes and supporting materials in ARIS, enabling consistent target-state modeling, architecture authoring, and reuse across business architecture teams.
- Coached and mentored 20+ enterprise business architects, conducting workshops and demonstrations to strengthen architecture practices, modeling techniques, and strategy execution.
- Developed value stream maps, portfolio canvas artifacts, and Lean Portfolio Management approaches supporting ExxonMobil IT's transition toward a tailored, scaled Agile delivery model.
- Contributed enterprise architecture, business capability modeling, and Lean Portfolio Management practices to ExxonMobil IT's transition toward scaled Agile delivery across an approximately $1 billion technology portfolio.
Principal Enterprise Architect & Program Manager – Vantage Oncology Integration
McKesson
- Led enterprise architecture and program execution for technology integration associated with a roughly $1 billion healthcare acquisition, supporting more than 1,500 personnel across 60+ practice sites.
- Conducted stakeholder analysis and authored TOGAF-guided statement of architecture work and architecture definition document covering baseline, target, gap, and integration approach; secured approval from the program executive steering team.
- Defined target-state strategy to converge enterprise network, collaboration, HR/finance, and shared support services while preserving existing clinical applications and patient-data systems of record; maintained connectivity to clinical environments.
- Directed rationalization across network, infrastructure, applications, data access, security, and operations. Coordinated vulnerability discovery, remediation, and recurring rescan validation across acquired and receiving environments.
- Established and led a roughly 55-person SAFe Agile Release Train delivering 10+ incremental releases, including enterprise service onboarding, network/circuit consolidation, and support transition.
CIO Adviser – Enterprise Architecture & Transformation
Clark County Government
- Advised the CIO on technology modernization and enterprise transformation for a government organization operating 38 departments, employing 10,000+ personnel, and managing a $6.2 billion annual budget.
- Assessed 15 fragmented technology platforms and developed a comprehensive current-state enterprise applications architecture to identify duplication, integration gaps, and modernization priorities.
- Designed an application portfolio rationalization methodology to identify candidates for consolidation, reconfiguration, redesign, and retirement across the county's technology landscape.
- Developed a strategic technology roadmap to guide consolidation of 15 disparate platforms toward a unified enterprise core serving 38 departments and the public.
- Partnered with the CIO and Business Innovation Committee to align technology investments, enterprise capabilities, and modernization priorities with business and public-service objectives.
- Provided enterprise architecture and Agile transformation guidance, coaching architects and supporting governance, strategic planning, and disciplined technology delivery.
- Developed an enterprise modernization roadmap targeting consolidation of 15 technology platforms, with estimated annual operating savings of $10 million, subject to implementation.
Lead Enterprise Data Architect
ConocoPhillips
- Architected and delivered the Unconventional Reservoir Analog Database (URAD), integrating geological, reservoir, and production data into an enterprise decision-support and analytics platform.
- Led a cross-functional team of 15+ subject matter experts through architecture, development, Agile delivery, and incremental releases of enterprise reservoir analytics solutions.
- Designed a hybrid Kimball–Inmon enterprise data warehouse with dimensional data marts, master data management, and BI capabilities supporting upstream exploration and production decisions.
- Integrated Oracle, Teradata, and internal/external industry data sources using ETL, web services, and event-based interfaces to support reservoir analysis and enterprise workflows.
- Developed URAD Central, a secure, single-sign-on web portal enabling enterprise users to access reservoir applications, analytical information, and shared workflows.
- Established Agile and DevOps delivery practices, including Scrum ceremonies and continuous integration/delivery, accelerating iterative development and production deployment.
- Developed an enterprise architecture roadmap for extending URAD with secure executive portfolio management and knowledge-management capabilities to support investment decisions.
- Led architecture and incremental delivery of URAD, supporting an estimated $10+ million in annual spend efficiencies through improved reservoir analytics and investment decision-making.
Lead Enterprise Architect & CIO Advisor – Enterprise Transformation
Department of Transportation, Texas
- Established an enterprise architecture practice within the CIO's office, supporting technology transformation for a state transportation agency with 12,000 employees and a $10 billion annual operating scope.
- Developed a TOGAF 9.1-based enterprise architecture framework, playbook, principles, and governance model spanning business, application, data, infrastructure, and security domains.
- Implemented Troux Architect as the enterprise architecture repository and developed an enterprise metadata model to improve architecture visibility, traceability, and decision support.
- Established architecture governance involving an Architecture Review Board, architects, process owners, and data stewards to guide enterprise standards and technology decisions.
- Authored current-state and target-state architectures, reference models, and transformation roadmaps supporting ERP modernization, application rationalization, and enterprise data initiatives.
- Established enterprise data governance capabilities, including a Data Governance Steering Committee, Data Governance Council, and designated data stewardship responsibilities.
- Advanced digital records management by introducing metadata-supported records capabilities and a foundation for enterprise-wide digital information lifecycle management.
- Advised the CIO and senior leadership on enterprise transformation, IT outsourcing, ERP, internal controls, and investment prioritization, aligning technology initiatives with agency objectives.
- Developed enterprise architecture and transformation roadmaps supporting an estimated $15 million in annual IT spend efficiencies through improved governance, portfolio alignment, and modernization planning.
Enterprise Solutions Architect & Integration Specialist – AT&T Canada
Bell MTS
- Directed a cross-functional team of 15+ professionals across architecture, requirements, design, quality assurance, UAT, and implementation of enterprise OSS/BSS integration solutions.
- Co-developed CRTC-mandated Canadian telecommunications interoperability standards enabling secure OSS/BSS interactions between incumbent and competitive local exchange carriers.
- Led enterprise application integration architecture using SOA, web services, data warehousing, and business intelligence to streamline order management, provisioning, and billing.
- Established reusable integration architecture standards, governance practices, and delivery methodologies to improve enterprise application interoperability and solution delivery.
- Developed enterprise data models, integration frameworks, and XML messaging standards supporting telecom service provisioning, business process automation, and data consistency.
Enterprise Solutions Architect – Sprint Canada
Rogers Communications
- Architected an enterprise-wide OSS/BSS strategy and implementation roadmap integrating telecommunications applications, network operations, service delivery, assurance, and enterprise data capabilities.
- Directed a cross-functional team of 15+ professionals through architecture, requirements, design, QA, UAT, and deployment of enterprise telecommunications solutions.
- Designed OSS/BSS integration for the launch of an early VoIP telephony offering with 911 support, enabling automated customer provisioning, billing, and service activation.
- Developed SOA-based integration solutions connecting heterogeneous applications, databases, and business processes to streamline customer care, billing, and service delivery.
- Provided architecture and integration guidance for M&A Integration: Northpoint Canada's infrastructure, applications, and business processes onto Sprint Canada's enterprise platform.
- Evaluated vendor technologies, conducted proofs of concept, and presented architecture alternatives, delivery estimates, costs, and risks to senior management.
Project History
$1B Healthcare M&A Integration | Enterprise Architecture, Technology Strategy, & Program Leadership
I led TOGAF-based enterprise architecture and program execution, supporting 60+ practice locations and 1,500+ personnel, and guided a 55-person Agile Release Train through 10+ incremental releases.
The case study demonstrates current-state assessment, target-state architecture, application rationalization, strategic trade-offs, and gap-driven integration roadmaps. Key decisions included extending McKesson's HR and financial ERP platforms, consolidating enterprise networks and collaboration services, and preserving clinical applications and data in situ with secure private-network access.
It highlights executive-approved architecture, stakeholder governance, rigorous Development–UAT–Production controls, formal Go/No-Go decisions, and staged cutovers.
The integration supported projected annual operating synergies exceeding $10 million and demonstrates a repeatable architecture-led M&A integration methodology.
Enterprise Technology Transformation & Infrastructure Architecture | Chevron Corporation
Education
Master's Degree in Business Administration (MBA)
Queen's University - Kingston, ON, Canada
Master's Degree in Business Administration (MBA)
Cornell University - Ithaca, NY, USA
Certifications
Chief Technology Officer
The Wharton School – University of Pennsylvania
Certified SAFe 5 Program Consultant (SPC)
Scaled Agile
TOGAF 9.1
The Open Group
Professional Engineer
Professional Engineers Ontario
Project Management Professional (PMP)
Project Management Institute (PMI)
Skills
Frameworks
TOGAF, Scaled Agile Framework (SAFe)
Paradigms
Management, DevOps, Application Architecture, Enterprise Application Integration (EAI), Service-oriented Architecture (SOA), Business Intelligence (BI), DevSecOps, Change Management
Languages
UML
Platforms
Blockchain
Industry Expertise
Lean Six Sigma
Other
Operations & Business Support Systems (OSS/BSS), Enterprise Architecture, Program Management, Mergers & Acquisitions (M&A), P.Eng, Strategy, Artificial Intelligence (AI), Emerging Technologies, Strategic Leadership, Business Capability Modelling, Value Stream Mapping, Target-State Architecture, Current-State Architecture, Technology Strategy & Architecture, Architecture Governance, Stakeholder Management, Network Architecture, Security Architecture, Data Architecture, Business Architecture, Enterprise Resource Planning (ERP), Business Intelligence, Project Management Professional (PMP), Scrum Master, IT Strategy, Enterprise Program Management, Solution Architecture, Technology Roadmapping, Network Design, IT Governance, CFO, Six Sigma Black Belt Certified, Business Process Automation, VoIP, Telecommunications Service Provisioning, Billing Systems, Service Assurance, Enterprise Data Warehouse (EDW), Enterprise Data Management (EDM), Software Development Lifecycle (SDLC), Agile Product Delivery, System Integration, Application Portfolio Rationalization, Digital Transformation, Executive Coaching, Digital Transformation Program Management, M&A Modeling, enterprise program management, Risk Management, Network Architecrture, Agile Release Train Leadership, Professional Engineering Certification - Communications and Computer Systems speciality, Executive Communications, Enterprise Business Technology Strategy, Leading a Technology Driven Organization, Enterprise AI, Machine Learning, Technology Innovation, Technology Governance, Technology Risk Management, Technology-Driven Business Models, Executive Stakeholder Communications, Platform Strategy, Technology Investment Strategy, Innovation Management, Product Innovation, Business Administration, Leadership, Finance, VR Marketing, Operations Management, General Management, Political Campaigning, Communications Management, Web Services, CI/CD Pipelines, TOGAF 9.1, Zachman Framework, Troux Architect, Architecture Review Board, Enterprise Architecture Governance, Enterprise Metadata management, Enterprise Architecture Maturity Assessment, Digital Records Management, Electronic Value Stream Mapping (eVSM), Reference Architecture, Software AG Alfabet, Software AG ARIS, Scrum master, Sparx EA, Alfabet, Engineering, Computer Systems, Post-merger Integration, Architecture, IT Integration, IT Portfolio Rationalization, Cloud & Infrastructure Migration, Data center Migration, Microsoft 365, Identity & Access Management (IAM), Solutions Delivery, Executive Leadership, Automation Systems Integration, SCADA, Strategic Planning, Data Center Infrastructure, Telecommunications Towers, Fiber Optic Network Engineering, Budget Management, Stakeholder Managent, Vendor Management, Telecommunications Systems Design and Engineering, IT Infrastructure Architecture, Planning and development of Network Control centers, technology Roadmapping, JV Management, Applicationation Architecture, Enterprise Security Architecture, Workforce Integration Management, Enterprise Strategy & Transformation
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