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About the Role

The Senior Manager, Tax Technology leads complex indirect tax technology implementation projects for enterprise clients, focusing on ERP integration, tax engine deployment, and business process transformation. This role oversees multiple concurrent engagements from planning through production deployment, ensuring timely, within-budget delivery according to Ryan’s standards. The ideal candidate has substantial experience leading full-cycle implementations integrating SAP ECC or S/4HANA with Vertex O Series or OneSource Determination. In addition to client delivery, this role involves developing consulting professionals, managing direct reports, supporting business development, and contributing to the practice’s growth.

Responsibilities

Creates a positive, accountable, and collaborative team environment aligned with Ryan’s core values.
Leads, coaches, and develops consulting professionals through technical guidance, performance management, training, and career development.
Oversees project staffing, resource planning, workload distribution, and utilization across concurrent engagements.
Establishes consistent implementation methodologies, quality standards, and delivery best practices.
Supports recruiting, interviewing, onboarding, and professional development of Tax Technology team members.
Leads complex indirect tax technology implementations from project initiation through deployment and post-go-live support.
Serves as a trusted advisor to client tax, finance, accounting, and IT stakeholders.
Oversees the implementation lifecycle, including requirements gathering, solution and process design, configuration, ERP integration, testing, cutover, and hypercare.
Manages project scope, schedules, budgets, staffing, financial performance, and risks across multiple engagements.
Reviews functional specifications, testing documentation, and client deliverables to ensure quality and implementation readiness.
Supports proposals, client presentations, engagement planning, and identification of additional service opportunities.
Applies indirect tax and technology expertise to translate business requirements into practical, scalable solutions.
Provides technical leadership for ERP integrations, tax engine implementations, and custom tax automation solutions.
Develops implementation methodologies, quality standards, and reusable delivery assets that improve project consistency and efficiency.
Promotes the appropriate use of automation, analytics, and artificial intelligence to improve delivery and client outcomes.
Ensures strong engagement performance through disciplined budgeting, forecasting, resource planning, billing, and change management.
Supports practice growth through thought leadership, strategic initiatives, vendor relationships, and knowledge sharing.
Performs other duties as assigned.
May directly supervise team members and carry out supervisory responsibilities in accordance with Firm policies and applicable laws.

Requirements

Bachelor's degree or Master's degree from a four-year college or university and a minimum of seven to ten years of experience providing indirect tax automation and implementation services is required.
Experience working for a consulting firm, tax software provider, or systems integrator delivering enterprise indirect tax technology implementations is strongly preferred.
Demonstrated experience leading multiple full-cycle enterprise software implementations from requirements gathering through production deployment and post-go-live support.
Extensive knowledge of indirect tax technology software solutions is required, specifically Vertex O Series or OneSource Determination.
Extensive ERP knowledge specific to tax determination and finance.
Experience working with and designing SAP ERP Sales and Distribution (SD), Materials Management (MM), and Financial Accounting (FI) modules in SAP ECC and/or SAP S/4HANA.
Proficiency in Microsoft Office applications, including Word, Excel, PowerPoint, and Outlook.
Experience working with enterprise systems, databases, reporting tools, project management platforms, or business applications.
Demonstrated ability to appropriately leverage artificial intelligence tools to improve productivity, analysis, documentation, project delivery, and day-to-day client service while maintaining professional judgment, confidentiality, and data security.
Strong project and program management skills with the ability to manage multiple concurrent engagements and priorities.
Strong functional knowledge of SAP ECC or SAP S/4HANA processes related to indirect tax.
Experience leading multiple end-to-end implementations of Vertex O Series or OneSource Determination integrated with SAP ECC or SAP S/4HANA.
Excellent written, verbal, presentation, and executive-level communication skills.
Ability to lead cross-functional teams and influence client and internal stakeholders.
Strong analytical and problem-solving skills with the ability to translate complex business requirements into practical solutions.
Demonstrated ability to coach and develop consulting professionals.

Skills

Indirect tax technology implementation
ERP integration
Tax engine deployment
Business process transformation
SAP ECC
SAP S/4HANA
Vertex O Series
OneSource Determination
Project management
Client advisory
Requirements gathering
Solution design
Process design
Configuration
Testing
Cutover
Hypercare
Scope management
Schedule management
Budget management
Staffing
Financial performance management
Risk management
Functional specifications review
Testing documentation review
Client deliverable review
Proposal support
Client presentations
Engagement planning
Service opportunity identification
Technical leadership
Custom tax automation solutions
Automation
Analytics
Artificial intelligence
Disciplined budgeting
Forecasting
Resource planning
Billing
Change management
Thought leadership
Strategic initiatives
Vendor relationships
Knowledge sharing
Microsoft Office Suite (Word, Excel, PowerPoint, Outlook)
Enterprise systems
Databases
Reporting tools
Project management platforms
Business applications
Project management tools
Collaboration platforms
AI tools for productivity
AI tools for analysis
AI tools for documentation
AI tools for project delivery
AI tools for client service
Professional judgment
Confidentiality
Data security
SAP ECC/S/4HANA indirect tax processes
Cross-functional team leadership
Stakeholder influence
Problem-solving
Coaching
Developing consulting professionals
Vertex Accelerator
Vertex Accelerator+
SAP S/4HANA transformations
SAP S/4HANA migrations
REST APIs
Web services
Middleware
Data analytics
Agile methodologies
Scrum methodologies
Lean methodologies
Structured implementation methodologies
PMP
Agile/Scrum certifications
Lean/Six Sigma
CPA
SAP certifications
Vertex certifications
OneSource certifications

Location

Remote
Hybrid

Work Type

Hybrid
Remote

Experience Level

Senior Manager
Seven to ten years of experience

Education Level

Bachelor's degree or Master's degree
Accounting, Tax, or Information Technology degrees are desirable.
Certified Public Accountant (CPA) or Project Management Professional (PMP) designation is a plus.

Salary/Compensations

California: $158,000.00 - $211,750.00
California: $144,500.00 - $194,150.00
Colorado: $138,000.00 - $185,350.00
Illinois: $144,500.00 - $194,150.00
Illinois: $138,000.00 - $185,350.00
Maryland: $138,000.00 - $185,350.00
Massachusetts: $144,500.00 - $194,150.00
Massachusetts: $138,000.00 - $185,350.00
New Jersey: $158,000.00 - $211,750.00
New York: $158,000.00 - $211,750.00
New York: $132,500.00 - $177,100.00
Washington: $144,500.00 - $194,150.00

Benefits

Hybrid Work Options
Award-Winning Culture
Generous Personal Time Off (PTO)
14-Weeks of 100% Paid Leave for New Parents (Adoption Included)
Monthly Gym Membership Reimbursement OR Gym Equipment Reimbursement
Benefits Eligibility Effective Day One
401K with Employer Match
Tuition Reimbursement After One Year of Service
Fertility Assistance Program
Four-Week Company-Paid Sabbatical Eligibility After Five Years of Service

About the Company

Ryan is a professional services firm.

Equal Opportunity

disability/veteran