Alex J. Guillen Consulting, LLC

Enterprise Transformation.
Delivered with precision.

Senior advisory and program leadership for organizations navigating complex technology transformation — ERP, EPM, HCM, CPQ, payments platforms, AI enablement, and operational turnaround.

20+
Years of enterprise leadership
$10B
Payments platform scale
$250M+
Technology budgets managed
$50M+
In savings delivered across engagements

About

A trusted partner for high-stakes transformation

Alex J. Guillen Consulting brings over 20 years of enterprise technology leadership directly to your organization — without the overhead of a large firm. As both advisor and practitioner, Alex works alongside your executive team to deliver real outcomes.

With senior leadership experience at Fortune 500 companies including NCR Voyix, Hertz, Western Union, and AIR Communities across FinTech, Financial Services, Hospitality, and Real Estate, Alex brings a rare combination of strategic vision and execution rigor — equally comfortable presenting to the board or resolving a program delivery challenge hands-on.

Core areas of practice include enterprise ERP, EPM, HCM, and CPQ modernization, global payments transformation, AI enablement and intelligent automation, and tech debt reduction strategies that free teams to focus on innovation rather than maintenance.

A particular focus is helping organizations scale automation and deploy AI to reduce manual work, augment team productivity, and drive measurable operational outcomes — without disrupting the business in the process.

Based in Southwest Florida and available for engagements nationally and internationally.

Track record

1
Global Program Leadership FinTech, Financial Services, Hospitality & Travel, Real Estate — onshore, nearshore, and offshore delivery models across 20+ years of executive leadership
2
Fortune 500 Partner Network Strategic partnerships with Deloitte, Oracle, IBM, TCS, Cognizant, HCL, Stripe, Apple, and Automation Anywhere across multiple $10M+ transformations
3
CIO — NCR Voyix (2026) Engaged as CIO to assess and reposition a $60M Oracle Fusion transformation — restructured SI engagement eliminating ~$800K in cost exposure and converting $4M+ in milestones to outcome-based triggers
4
VP Technology — Hertz (2022–2025) $50M budget · 300+ global team · $10B payments transformation · Oracle Cloud ERP/EPM/HCM · 100+ automation bots delivering $5M+ in annual savings
5
Technology Leadership — Western Union Part of the leadership team that established Western Union's captive technology site in India — a global delivery model still operational today, supporting FinTech and remittance platforms at scale
6
VP Technology — AIR Communities (2019–2022) Led enterprise digital transformation for a publicly traded Blackstone REIT — PeopleSoft Financials, UKG HCM, and Entrata property management/CRM across ~100 properties, plus technology separation supporting a $10B corporate spin-off

Services

Where we can create the most impact

Enterprise Systems & Platforms
Advisory and program leadership for the full suite of enterprise platform modernization — ERP, EPM, HCM, and CPQ. From Oracle Fusion and Workday implementations to cloud migrations and legacy system replacement, Alex specializes in programs where business alignment, process discipline, and SI accountability are the difference between success and costly failure.
ERP EPM HCM CPQ Oracle Fusion Workday Program Recovery
Payments Platform Modernization
End-to-end strategy and execution for payments infrastructure transformation. From legacy consolidation to modern processor integration, PCI compliance reduction, and digital wallet enablement at enterprise scale.
Payments Strategy PCI Compliance Platform Consolidation FinTech
AI & Intelligent Automation
From AI strategy to deployed digital workers — helping organizations reduce manual effort, eliminate tech debt, and augment team productivity at scale. Proven track record scaling RPA/IPA programs from pilot to 100+ bots, with governance frameworks that sustain ROI long after the engagement ends.
AI Strategy & Roadmap RPA/IPA Scaling Tech Debt Reduction Productivity Augmentation
Interim & Part-Time CIO / Board Advisory
Senior technology leadership on a flexible model — ideal for organizations that need CIO-level thinking without the cost or commitment of a full-time hire. As an interim or part-time CIO, Alex provides executive presence, technology strategy, and organizational leadership exactly when and where it's needed. Board advisory engagements offer tech-fluent oversight for boards navigating transformation decisions, vendor selections, or technology risk — translating complex initiatives into clear, accountable outcomes at the governance level.
Interim CIO Part-Time CIO Board Advisory Tech Strategy Cost-Efficient Leadership
Enterprise Program Leadership
Structured leadership for multi-year, multi-million dollar enterprise programs — the kind where SI alignment, contract discipline, and executive accountability directly determine whether the investment succeeds or stalls. Alex specializes in bridging the gap between system integrators and internal organizations: reviewing and maximizing SI contracts, defining clear accountability models, and ensuring the organization is extracting full value from every dollar committed to the program.
SI Alignment & Oversight Contract Review & Maximization $10M+ Program Delivery Investment Optimization Multi-Year Engagements
Vendor Strategy & Optimization
Restructure underperforming vendor relationships, redesign SLAs and accountability models, and optimize onshore/nearshore/offshore delivery compositions to reduce cost and improve outcomes.
Vendor Management Contract Negotiation SLA Design Cost Optimization

Case Studies

Results that speak for themselves

01
Hertz — Payments
Global Payments Platform Transformation
Consolidated 12+ legacy payment systems into a single modern platform processing ~$10B annually. Partnered with Stripe, Apple, and major card networks to enable digital wallets, reduce fraud, and improve authorization rates — making Hertz the first major US rental car company to offer Apple Pay.
$10BAnnual volume
1–5%Auth rate lift
12→1Systems consolidated
02
Hertz — ERP/Cloud
Oracle Cloud ERP/EPM/HCM Migration
Led full-scale cloud transformation from legacy on-premise ERP, EPM, and HCM systems to integrated Oracle Cloud platform. Delivered on time, on budget, and within scope in under 12 months — partnering with Oracle and Deloitte across implementation and operate transition.
12moOn-time delivery
$5M+Annual savings
On budgetFull scope
03
Hertz — Automation
RPA/IPA Scaling & AI Enablement
Scaled intelligent automation from fewer than 10 bots to 100+ digital workers across core corporate functions in under 18 months. Established AI and automation governance framework, drove cross-functional adoption, and delivered measurable productivity gains — reducing manual work and augmenting team output across finance, HR, and operations.
100+Digital workers deployed
$5M+Annual cost savings
18moTime to scale
04
Hertz — Vendor Strategy
Vendor Ecosystem Redesign
Restructured underperforming vendor relationships across IBM, Deloitte, and TCS. Redesigned operating models, redefined SLAs and KPIs, and rebalanced FTE-to-vendor ratios to reduce organizational risk and dependency while significantly improving delivery accountability.
30%Cost reduction
↓ RiskVendor dependency
↑ SLAAccountability
05
NCR Voyix — Enterprise Transformation
Oracle Fusion Program Stabilization & SI Restructuring
Engaged as CIO during a leadership transition to assess and reposition a $60M Oracle Fusion ERP/EPM/CPQ transformation. Identified opportunities to strengthen governance, delivery structure, and program economics. Restructured the SI engagement — eliminating ~$800K in cost exposure and converting $4M+ in milestone payments to outcome-based delivery triggers. Partnered directly with CEO, CFO, and CTO to build a clear, fact-based view of program risk and strategic options, informing executive and board-level decisions on the program's path forward.
~$800KCost exposure eliminated
$4M+Milestones restructured to outcome-based
90 daysTime to measurable impact
300+Technology organization led
06
AIR Communities — Digital Transformation
Enterprise Platform Modernization & Corporate Spin-Off
Led a full enterprise digital transformation for a publicly traded Blackstone REIT — replacing legacy systems with PeopleSoft Financials (GL, AP, AR, Procurement), implementing UKG HCM, and deploying Entrata as the enterprise property management and CRM platform across ~100 properties. Additionally led the complete technology separation supporting a $10B corporate spin-off, managing financial data migration, system carve-out, and operational continuity in partnership with the CFO and controller.
~100Properties on platform
$10BSpin-off transaction
3 platformsERP + HCM + CRM
Discuss your transformation needs →

Testimonials

What clients and partners say

"

Alex is a rare technology leader who combines deep expertise with strong business acumen. He consistently translated complex needs into clear solutions, leading with focus, collaboration, and accountability. Alex was more than a tech lead — he was a trusted business partner.

Alexandra Brooks Chief Accounting Officer, FIS · Former CFO, Hertz
"

Alex's leadership was critical in migrating numerous legacy integrations, partnering with Apple and major card networks, and working with internal executive stakeholders. The initiative improved authorization rates, reduced fraud and risk, and enhanced the customer experience across all points of sale.

Brian Liedtke Global Payments Program Manager, Hertz
"

Alex is a very strong and collaborative leader. His strategic direction and disciplined execution enabled a successful cloud migration of ERP, EPM, and HCM applications, as well as a seamless transition to an Operate support model.

Nitin Prabhakar Partner & Global Oracle Sales Leader, Deloitte
"

Alex drove the company's global payments platform transformation with Stripe, improving digital experiences, security, and efficiency — all leveraging TCS resources globally. He is a strategic, results-driven leader and a great partner to collaborate with.

Manish Mathur Client Partner, TCS
"

Alex is a highly informed leader, driven and dedicated to the organization and to his people. He's professional in everything he does, with strong strategic awareness, business savvy, and a passion for quality. I'd welcome the opportunity to work with, or for, him again.

Dave Hill Retired Senior IT Leader, Western Union
"

Alex's technology expertise and collaboration on our business needs enabled us to deliver on budget and on time. He consistently translated complex requirements into simplified solutions, leading his team with focus and accountability. A truly trusted business partner.

Kelly Galloway Chief Accounting Officer, Apex Service Partners · Former CAO, Hertz

Approach

How we engage and deliver

Every engagement is tailored to your organization's specific situation. No templated frameworks. No junior staff doing the actual work. You get direct access to senior experience from day one.

01
Discovery & Diagnostic

A focused assessment of your current state — technology landscape, program health, vendor performance, and leadership alignment. No fluff; clear findings in 2–4 weeks.

02
Strategy & Roadmap

A practical, phased roadmap with sequenced priorities, resource requirements, risk flags, and measurable milestones. Built with your team, not handed down to them.

03
Execution Leadership

Embedded advisory or hands-on program leadership. Vendor oversight, stakeholder alignment, executive communication, and weekly cadence management to keep delivery on track.

04
Sustainable Outcomes

Knowledge transfer, governance design, and operating model handoff so your organization owns the results — not dependent on the consultant to sustain them.

Contact

Let's discuss your situation

Most engagements begin with a direct conversation — no pitch deck, no sales process. If you're facing a complex transformation challenge or program that needs executive leadership, reach out directly.

Based in Southwest Florida · Available nationally & internationally