Senior Tax Manager (100% REMOTE) Job Description We are seeking an experienced Tax Manager to lead the organization’s federal, state, local, and foreign tax compliance activities. This role is responsible for ensuring timely and accurate tax filings, managing audits, and providing strategic tax guidance to internal business partners. The ideal candidate brings strong analytical skills, exceptional attention to detail, and expertise in navigating complex and evolving tax regulations across multiple jurisdictions. This position is fully remote within the United States. Responsibilities - Oversee preparation and filing of all federal, state, local, and foreign tax returns. - Manage tax audits and coordinate responses with external advisors as needed. - Ensure compliance with all applicable tax laws and reporting requirements. - Monitor legislative and regulatory changes to assess business impact. - Provide strategic tax planning and guidance to internal stakeholders. - Maintain and enhance internal tax processes, controls, and documentation. - Support quarterly and annual tax provision calculations. - Support the annual financial statement audit by managing PBC (Prepared-By-Client) items and contributing to financial statement and footnote preparation. Essential Skills - Bachelor’s degree in Accounting, Finance, or related field. - 8-12+ years of experience in corporate tax compliance and audit management. - Strong understanding of federal, state, local, and international tax regulations. - Exceptional analytical and problem-solving skills. - Ability to communicate complex tax matters clearly and effectively. - High attention to detail and strong organizational skills. - Experience with ASC 740 and tax provisions. - Managerial experience and familiarity with government contracting. Additional Skills & Qualifications - Familiarity with Deltek Costpoint, including running, interpreting, and validating Costpoint reports to support tax compliance and audit activities. - Managerial experience managing a team of two (one lower level, one intermediate). - Understanding of tax provisions and accruals to oversee outsourced tax activities. - Experience in deferred taxes, sales taxes, business/corporate taxes, and personal property taxes. Work Environment This is a fully remote opportunity with the option to access an office in Fairfax if desired. Join a team of passionate individuals transforming government IT through innovative services and solutions. Be part of a growing organization dedicated to making a positive impact and building a workforce that fuels our mission. Contact Me: Catherine Sullivan View my availability here: Book a Meeting  Job Type & LocationThis is a Contract to Hire position based out of Fairfax, VA. Pay and BenefitsThe pay range for this position is $85.82 - $92.69/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave) Workplace TypeThis is a fully remote position. Application DeadlineThis position is anticipated to close on Apr 20, 2026. About Aston Carter: Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® double diamond winner for both client and talent service. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email astoncarteraccommodation@astoncarter.com for other accommodation options.

• Preparation and analysis of VAT return on a monthly /bi-monthly/ quarterly basis • Provide Intrastat, EU Sales reports (if required preparing additional country specify reports) • Ensure to be compliant with country specific rules and obligations, meet the deadlines for all reports • Carry out VAT clearing postings; VAT liquidation process • Perform quarterly detailed account reconciliations + Intrastat / EU sales reports reconciliations • Perform annual sales reconciliation where required • Support foreign VAT reclaim process • Follow up erroneous account receivable/ payable entries • Prepare transactions matrix and cash pool data for Transfer Pricing purposes • Prepare 4k testing for Transfer Pricing as required by German Tax Code • Prepare tax moving schedule • SOX controls for CIT • Prepare e-balance sheets for CIT • Interact with Business Tax Managers and Country Tax Leaders • Cooperate with other functions and provide support by answering tax related queries • Support Novelis Europe Tax team with other admin tax tasks, for example, set up supplies purchase orders in SAP

Dayforce is a global human capital management (HCM) company headquartered in Toronto, Ontario, and Minneapolis, Minnesota, with operations across North America, Europe, Middle East, Africa (EMEA), and the Asia Pacific Japan (APJ) region. Our award-winning Cloud HCM platform offers a unified solution database and continuous calculation engine, driving efficiency, productivity and compliance for the global workforce. Our brand promise - Makes Work Life Better™ - Reflects our commitment to employees, customers, partners and communities globally. About the Opportunity Join a high-impact, fast-growing team at Dayforce that delivers best-in-class payroll tax support across 8,000+ U.S. tax jurisdictions. In this role, you’ll be at the center of ensuring compliance, accuracy, and efficiency in payroll tax filing—helping clients navigate complex requirements with confidence. This is more than a filing role; you’ll partner with clients, collaborate cross-functionally, and help drive innovation as we continue moving toward a more automated, paperless future. What you’ll get to do - Lead the timely and accurate filing of payroll tax returns across assigned jurisdictions using bulk processing methods. - Partner with clients and tax agencies to resolve tax filing issues, including rejections, late filings, and amendments. - Execute and manage tax agency data exchanges to ensure accurate rates and filing frequencies. - Develop and maintain deep expertise in agency requirements, ensuring internal systems reflect current regulations. - Collaborate with internal teams and tax agencies to gather requirements, solve issues, and improve filing processes. - Contribute to automation initiatives, helping streamline deposits and filings while reducing manual processes. - Use sound judgment to analyze issues, develop solutions, and drive outcomes independently. - Support key business initiatives and special projects that enhance operational excellence. Skills and experience we value - Bachelor’s degree, relevant industry experience, or a combination of both - 5+ years of payroll and/or tax filing experience, ideally in a high-volume or bulk filing environment - Professional certifications (CPA or Enrolled Agent) are a plus - Experience with Salesforce or similar case management tools - Strong communication skills with the ability to work effectively with clients, agencies, and internal teams - Analytical mindset with the ability to problem-solve and drive effective solutions independently - Proficiency with Microsoft Office tools (Excel, Word, etc.) and the ability to quickly learn internal systems - A strong sense of ownership, accountability, and adaptability in a dynamic environment - A proactive, self-starter attitude with sound judgment and decision-making skills - A drive for continuous improvement and delivering exceptional results What’s in it for you Dayforce is fueled by the diversity of our talented employees. We are an equal opportunity employer and consider and embrace ALL individuals and what makes them unique. We believe our employees should be happy and healthy, with peace of mind and a sense of fulfillment. We encourage individuals to apply based on their passions. Dayforce encourages personal and professional growth. We offer excellent time away from work programs, comprehensive wellness initiatives and recognition through competitive pay and benefits. With a commitment to community impact, including volunteer days and our charity, Dayforce Cares we provide opportunities for you to thrive both in your career and personal life. Our focus is not just on your job but on supporting you to be the best version of yourself. About the Salary Ranges Please note that the salary range mentioned in this job description should serve simply as a guide. The final compensation offered may vary based on a variety of factors, including bonuses and/or incentives, or a candidate’s experience, skills, budget and location. Our company is committed to providing a fair, equitable, and competitive package that reflects the value an individual brings to the organization. Fraudulent Recruiting Beware of fraudulent recruiting. Legitimate Dayforce contacts will use an @dayforce.com email address. We do not request money, checks, equipment orders, or sensitive personal data during the recruitment process. If you have been asked for any of the above, or believe you have been contacted by someone posing as a Dayforce employee, please refer to our fraudulent recruiting statement found here: https://www.dayforce.com/be-aware-of-recruiting-fraud Dayforce actively monitors all job applications to ensure authenticity. Submissions determined to be fraudulent or misleading will be declined from the recruitment process #LI-Remote

Dayforce is a global human capital management (HCM) company headquartered in Toronto, Ontario, and Minneapolis, Minnesota, with operations across North America, Europe, Middle East, Africa (EMEA), and the Asia Pacific Japan (APJ) region. Our award-winning Cloud HCM platform offers a unified solution database and continuous calculation engine, driving efficiency, productivity and compliance for the global workforce. Our brand promise - Makes Work Life Better™ - Reflects our commitment to employees, customers, partners and communities globally. About the Opportunity Join a high-impact, fast-growing team at Dayforce that delivers best-in-class payroll tax support across 8,000+ U.S. tax jurisdictions. In this role, you’ll be at the center of ensuring compliance, accuracy, and efficiency in payroll tax filing—helping clients navigate complex requirements with confidence. This is more than a filing role; you’ll partner with clients, collaborate cross-functionally, and help drive innovation as we continue moving toward a more automated, paperless future. What you’ll get to do - Lead the timely and accurate filing of payroll tax returns across assigned jurisdictions using bulk processing methods. - Partner with clients and tax agencies to resolve tax filing issues, including rejections, late filings, and amendments. - Execute and manage tax agency data exchanges to ensure accurate rates and filing frequencies. - Develop and maintain deep expertise in agency requirements, ensuring internal systems reflect current regulations. - Collaborate with internal teams and tax agencies to gather requirements, solve issues, and improve filing processes. - Contribute to automation initiatives, helping streamline deposits and filings while reducing manual processes. - Use sound judgment to analyze issues, develop solutions, and drive outcomes independently. - Support key business initiatives and special projects that enhance operational excellence. Skills and experience we value - Bachelor’s degree, relevant industry experience, or a combination of both - 5+ years of payroll and/or tax filing experience, ideally in a high-volume or bulk filing environment - Professional certifications (CPA or Enrolled Agent) are a plus - Experience with Salesforce or similar case management tools - Strong communication skills with the ability to work effectively with clients, agencies, and internal teams - Analytical mindset with the ability to problem-solve and drive effective solutions independently - Proficiency with Microsoft Office tools (Excel, Word, etc.) and the ability to quickly learn internal systems - A strong sense of ownership, accountability, and adaptability in a dynamic environment - A proactive, self-starter attitude with sound judgment and decision-making skills - A drive for continuous improvement and delivering exceptional results What’s in it for you Dayforce is fueled by the diversity of our talented employees. We are an equal opportunity employer and consider and embrace ALL individuals and what makes them unique. We believe our employees should be happy and healthy, with peace of mind and a sense of fulfillment. We encourage individuals to apply based on their passions. Dayforce encourages personal and professional growth. We offer excellent time away from work programs, comprehensive wellness initiatives and recognition through competitive pay and benefits. With a commitment to community impact, including volunteer days and our charity, Dayforce Cares we provide opportunities for you to thrive both in your career and personal life. Our focus is not just on your job but on supporting you to be the best version of yourself. About the Salary Ranges Please note that the salary range mentioned in this job description should serve simply as a guide. The final compensation offered may vary based on a variety of factors, including bonuses and/or incentives, or a candidate’s experience, skills, budget and location. Our company is committed to providing a fair, equitable, and competitive package that reflects the value an individual brings to the organization. Fraudulent Recruiting Beware of fraudulent recruiting. Legitimate Dayforce contacts will use an @dayforce.com email address. We do not request money, checks, equipment orders, or sensitive personal data during the recruitment process. If you have been asked for any of the above, or believe you have been contacted by someone posing as a Dayforce employee, please refer to our fraudulent recruiting statement found here: https://www.dayforce.com/be-aware-of-recruiting-fraud Dayforce actively monitors all job applications to ensure authenticity. Submissions determined to be fraudulent or misleading will be declined from the recruitment process #LI-Remote