Sr. Manager, Treasury - (Herndon, VA *Hybrid)

• Position Description & Qualifications
• Serco Inc. is seeking a dynamic and highly skilled
• Sr. Manager, Treasury
• to oversee treasury and cash management operations for the North America Division at our Headquarters office in
• Herndon, VA
• . Reporting to the
• Director of Accounting
• , this role is responsible for ensuring accuracy, timeliness, compliance, and operational effectiveness across all treasury activities. The Sr. Manager, Treasury partners closely with Serco's
• Global Treasury team
• to manage cash requirements and support daily treasury operations.

This role requires a well‑rounded leader who can both dive deeply into operational details and assess broader financial impacts across upstream and downstream processes. The successful candidate will thrive in a fast‑paced, deadline‑driven environment and consistently demonstrate strong technical expertise, professional judgment, and the ability to rapidly assimilate new knowledge. This position interfaces regularly with stakeholders across the U.S. and Canada in

• Finance & Accounting, Procurement, Business Operations
• , and other corporate functions, and plays a key role in scaling treasury operations through best practices and technology enablement.
• Must be local to the DMV (D.C, Maryland, Virginia) area
• In this role, you will:
• Treasury Management
• + Oversee all cash management activities, including cash concentration, wires, account funding, and liquidity management to support working capital needs.

+ Manage intercompany cash activities, including intercompany lending and dividends. + Oversee banking and financial institution relationships; negotiate bank and service fees. + Execute treasury initiatives in coordination with Global Treasury, including optimization of international banking infrastructure and banking relationships. + Support financial planning and analysis efforts related to cash flow forecasting. + Monitor payment schedules to ensure adherence to payment terms and optimize cash flow. + Recommend and implement cost‑saving, profit‑maximizing, risk management, and process improvement opportunities within treasury systems and processes. + Present treasury initiatives, analyses, and results to multiple levels of management.

• Accounting, Close, and Reporting
• + Ensure timely and accurate month‑end close activities related to treasury and cash management.

+ Perform and oversee general accounting activities related to treasury, including journal entries, subsidiary ledger to general ledger reconciliations, and intercompany account reconciliations. + Develop periodic reporting for senior management related to treasury activities, cash forecasting, interest, and dividends.

• Compliance and Internal Controls
• + Lead the development, maintenance, and enhancement of treasury policies, procedures, operational controls, and standards.

+ Ensure compliance with applicable accounting standards, regulatory requirements, and internal policies to mitigate risk and safeguard financial integrity. + Recommend fraud mitigation practices and provide training to relevant stakeholders. + Prepare documentation and provide support for internal and external audits.

• Process Improvement and Technology Enablement
• + Serve as the treasury and banking systems subject matter expert and departmental administrator for treasury‑related applications.

+ Implement new bank technologies, products, and services to improve the cash cycle and simplify operations. + Identify and implement process improvements to increase efficiency, scalability, automation, and cost effectiveness across treasury and payables‑related workflows. + Respond to internal business user requests related to treasury and AP‑related system functionality. + Troubleshoot and resolve system issues in coordination with business and technical teams. + Lead or support system enhancement projects and participate as a treasury/AP subject matter expert in system upgrades and implementations. + Test system changes to ensure performance aligns with design expectations and resolve issues as needed.

• Collaboration and Stakeholder Engagement
• + Partner with internal stakeholders including Global Treasury, Accounting, FP&A, Procurement, Vendor Management, Risk Management, Facilities, Legal, Tax, Payables, Receivables, Human Resources, IT, and operations leadership to ensure alignment with corporate objectives.

+ Communicate effectively across departments and organizational levels to support treasury operations and initiatives. + Perform additional duties and special projects as assigned.

• To be successful in this role, you will have:
• + •U.

S Citizenship

• + •Bachelor's degree in Finance, Accounting, Business Administration, or a related field required•+ Minimum of •8 years•of finance or accounting experience, including •at least 4 years•of direct treasury operations and cash management experience + Minimum of •2 years•of treasury experience within a multinational business environment + Demonstrated experience designing, improving, and optimizing treasury and cash management processes + Advanced knowledge of treasury best practices, including financial regulations, tax considerations, and compliance requirements + Advanced understanding of cash forecasting, financial modeling, budgeting, and accounting practices + Familiarity with international payments, multi‑currency transactions, and related tax compliance considerations + Excellent communication and interpersonal skills, with the ability to collaborate effectively across departments and organizational levels + Strong analytical and critical thinking skills, with a proactive and solutions‑oriented approach + Proven track record of managing and optimizing financial processes + Advanced Microsoft Office skills, including strong Excel data analysis capabilities •Additional desired experience and skills:•+ MBA, CTP, or CPA preferred + Experience with •MS Power BI•preferred + Strong working knowledge of •Deltek Costpoint v8.

1 or higher

• Company Overview
• Serco Inc.

(Serco) is the Americas division of Serco Group, plc. In North America, Serco's 9,000+ employees strive to make an impact every day across 100+ sites in the areas of Defense, Citizen Services, and Transportation. We help our clients deliver vital services more efficiently while increasing the satisfaction of their end customers. Serco serves every branch of the U.S. military, numerous U.S. Federal civilian agencies, the Intelligence Community, the Canadian government, state, provincial and local governments, and commercial clients. While your place may look a little different depending on your role, we know you will find yours here. Wherever you work and whatever you do, we invite you to discover your place in our world. Serco is a place you can count on and where you can make an impact because every contribution matters. To review Serco benefits please visit: https://careers.serco-na.com/us/en/what-we-offer . If you require an accommodation with the application process please email: careers@serco-na.com or call the HR Service Desk at 800-628-6458, option 1. Please note, due to

EEOC/OFCCP

compliance, Serco is unable to accept resumes by email. Candidates may be asked to present proof of identify during the selection process. If requested, this will require presentation of a government-issued I.D. (with photo) with name and address that match the information entered on the application. Serco will not take possession of or retain/store the information provided as proof of identity. For more information on how Serco uses your information, please see our Applicant Privacy Policy and Notice. Serco does not accept unsolicited resumes through or from search firms or staffing agencies without being a contracted approved vendor. All unsolicited resumes will be considered the property of Serco and will not be obligated to pay a placement or contract fee. If you are interested in becoming an approved vendor at Serco, please email Agencies@serco-na.com . Serco is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally protected characteristics.

• Pay Transparency
• Our Total Rewards package includes competitive pay, performance-based incentives, and benefits that promote well-being and work-life balance—so you can thrive both professionally and personally.

Eligible employees also gain access to a wide range of benefits from comprehensive health coverage and health savings accounts to retirement plans, life and disability insurance, and time-off programs that support work-life balance. Program availability may vary based on factors such as contract type, location, hire date, and applicable collective bargaining agreements.

Salary range:

The range for this position can be found at the top of this posting. This range is provided as a general guideline and represents a good faith estimate across all experience levels. Actual base salary will be determined by a variety of factors, including but not limited to, the scope of the role, relevant experience, job-related knowledge, education and training, key skills, and geographic market considerations. For roles available in multiple states, the range may vary to reflect differences in local labor markets. In addition to base salary, eligible positions may include other forms of compensation such as annual bonuses or long-term incentive opportunities.

Benefits - Comprehensible benefits for full-time employees (part-time employees receive a limited package tailored to their role): + Medical, dental, and vision insurance + Robust vacation and sick leave benefits, and flexible work arrangements where permitted by role or contract + 401(k) plan that includes employer matching funds + Tuition reimbursement program + Life insurance and disability coverage + Optional coverages that can be purchased, including pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection + Birth, adoption, parental leave benefits + Employee Assistance Plan To review all Serco benefits please visit: https://careers.serco-na.com/us/en/about-us . Serco complies with all applicable state and local leave laws, including providing time off under the Colorado Healthy Families and Workplaces Act for eligible Colorado residents, in alignment with our policies and benefit plans. The application window for this position is for no more than 60 days. We encourage candidates to apply promptly after the posting date, as the position may close earlier if filled or if the application volume exceeds expectations. Please submit applications exclusively through Serco's external (or internal) career site. If an applicant has any concerns with job posting compliance, please send an email to: careers@serco-na.com .