Lockbox Operations Manager Jobs in Seattle, WA (NOW HIRING)

Build the future, spark innovation and align your career with purpose.

McKinstry is innovating the waste and climate harm out of the built environment and creating lasting impact. Together, we're building a thriving planet.

Buildings are a leading contributor to the climate crisis, generating nearly 40% of total global energy-related carbon emissions. We're making a lasting impact on our industry and within our communities by addressing the climate, affordability and equity crises through:

• renewables and energy services
• engineering and design
• construction and facility services

To get where we're going, we need big thinkers, problem solvers and collaborative mindsets. Does that sound like you?

The Opportunity with McKinstry

McKinstry is looking for a Senior Manager, Invoice-to-Cash Operations to join our growing Finance and Accounting division. This position is responsible for leading the Invoice-to-Cash function, including billing, collections, cash application, customer payments, reporting, and supporting technology platforms. Serves as the primary leader responsible for day-to-day Invoice-to-Cash operations, operational performance, and working capital results. Partners with the Director, Accounting Operations on organization design, process improvements, and system initiatives while maintaining ownership of execution, issue resolution, and team performance. Additional responsibilities may include:

Operational Leadership & Performance

• Own Invoice-to-Cash operations, including billing, collections, cash application, customer payments, AR aging, and related customer data processes.

• Establish priorities, KPIs, service levels, and operating rhythms to drive execution, accountability, and working capital performance.

• Lead resolution of issues impacting cash flow, customer experience, and operational performance.

• Ensure the function can support business growth and operational complexity through timely execution, clear ownership, accountability, and escalation of issues.

Leadership & Functional Development

• Lead and develop managers/supervisors, team leads, and senior individual contributors responsible for Invoice-to-Cash operations across billing, collections, cash application, and customer master data.

• Establish clear ownership, accountability, performance expectations, and escalation paths to drive execution and team performance.

• Support organizational growth through leadership development, succession planning, and operating model improvements.

Working Capital & Customer Operations

• Drive billing, collections, cash application, customer onboarding, and AR aging performance through strong partnership with Line of Business Operations team members and Finance & Accounting teams.

• Own the accuracy, timeliness, and quality review of Invoice-to-Cash cash forecast inputs, ensuring forecasts are reviewed and validated before distribution.

•  Improve visibility into customer payment issues, collection risks, and operational barriers impacting cash flow.

• Lead initiatives that improve cash conversion, customer experience, operational efficiency, and overall Invoice-to-Cash performance.

Technology, Third-Party Partners & Operational Readiness

• Lead the operational execution of ERP implementations, system enhancements, and process changes across Invoice-to-Cash, partnering with the Director, Accounting Operations on priorities, design decisions, and business outcomes.

• Manage third-party partners supporting payment processing, collections, lockbox operations, and billing technology services.

• Provide business leadership for ERP implementations, system enhancements, and technology initiatives, ensuring solutions improve operational performance, controls, automation, and scalability.

Controls, Compliance & Continuous Improvement

• Ensure Invoice-to-Cash processes comply with company policies, internal controls, tax requirements, and audit standards.

• Identify risks and process gaps and implement practical solutions that improve compliance, efficiency, and consistency.

• Standardize processes and strengthen accountability across the function.

• Partner with Finance & Accounting teams and Audit to support audit readiness, issue resolution, and continuous improvement.

What You Need To Succeed at McKinstry:

Education & Leadership Experience

• Bachelor's degree in Accounting, Finance, Business Administration, or related field required.

• 8+ years of progressive experience in Accounts Receivable, Billing, Collections, Invoice-to-Cash, Accounting Operations, Revenue Accounting or relevant Finance Operations

• 3+ years leading large transactional teams through supervisors, managers, and team leads.

• Experience managing large-scale Invoice-to-Cash operations in complex, multi-entity organizations with AR portfolios exceeding $200M across diverse customers, contract structures, and business models.

• Experience using operational reporting and data to drive performance, identify risks, and support decision-making.

Functional & Industry Expertise

• Strong understanding of working capital management, internal controls, management reporting, and accounting fundamentals.

• Strong knowledge of GAAP and project-based accounting, including progress/unit billing, collections, percentage-of-completion, change orders, intercompany transactions, DSO, gross margin performance, AR management, and account reconciliations.

• Experience in construction, manufacturing, engineering, or other complex project-based businesses, including multi-entity operations and customer-specific billing requirements.

• Proven ability to establish KPIs, reporting, operating rhythms, and accountability processes that improve execution, controls, and service delivery.

• Experience leading operational improvements and resolving complex business issues through strong cross-functional partnership.

Systems, Technology & Leadership Capabilities

• Experience leading teams through ERP implementations, business transformation, and organizational change.

• Experience with billing systems, customer payment portals, cash application tools, and third-party service providers.

• Strong analytical, problem-solving, communication, stakeholder management, and leadership skills.

• Proven ability to lead through growth, system change, and operational complexity while maintaining focus on customer service, cash flow, controls, and business results.

PeopleFirst Benefits

When it comes to the basics, we have you covered:

• Competitive pay
• 401(k) with employer match and profit-sharing plan
• Paid time off and holidays
• Comprehensive medical, prescription, dental, and vision with low or zero deductible options and low out of pocket maximums

People come first at McKinstry, and we go beyond the basic benefits with:

• Family formation benefits, including adoption and IVF assistance
• Up to 16 weeks paid parental leave
• Transgender inclusive benefits
• Commuter benefits
• Pet insurance
• "Building Good" paid community service time
• Learning and advancement opportunities via McKinstry University
• McKinstry Moves onsite gyms or reimbursement for remote workers

See benefit plan documents for complete details.

If you're driven by our vision to build a thriving planet together, McKinstry is the place to build your career.

The pay range for this position is $110,790 - $190,700 per year; however, base pay offered may vary depending on job-related knowledge, skills, and experience. A bonus may be provided as part of the compensation package, in addition to a full range of medical, financial, and/or other benefits, dependent on the position offered. Base pay information is based on market location.

The McKinstry group of companies are equal opportunity employers. We are committed to providing equal employment opportunities to all employees and qualified applicants without regard to sex, gender identity, sexual orientation, age, race, color, creed, marital status, national origin, disability, veteran status, genetic information or any other basis protected by law. This policy applies to all terms and conditions of employment including, but not limited to employment, advancement, assignment, and training. This commitment to Equal Employment Opportunity is made equally as a social responsibility and as an economic and business necessity. 

McKinstry is a drug-free workplace. Employment iscontingent upon successfully passing a pre-employment drug and alcohol test, complying with the requirements of the Immigration Reform and Control Act and a Confidentiality Agreement, in addition to successful outcomes of background and reference checks.

Applicants for this role will only be considered if they possess current US Work Authorization, and do not require employer-sponsored VISA support to begin or remain in this role.

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