Arcellx, Inc. ( is a clinical-stage biotechnology company reimagining cell therapy by engineering innovative immunotherapies for patients with cancer and other incurable diseases. Arcellx believes that cell therapies are one of the forward pillars of medicine and our mission is to advance humanity by developing cell therapies that are safer, more effective, and more broadly accessible. Our offices are located in Gaithersburg, Maryland, and Redwood City, California.Reporting to our Controller, the Payroll Specialist will manage our payroll processes and oversee all payroll administration. This person will be responsible for monitoring all tasks necessary to accomplish the organization's payroll processing objectives, including planning, coordinating, managing the functions of the payroll department, and processing payroll. This position requires an extremely detail orientated person with significant knowledge of payroll administration, including state and federal regulations, and experience running payroll through ADP.Key Performance Objectives:* Preparing and processing semi-monthly payroll for CA, MD and multi-state employees using ADP timely and accurately.* Process and submit employee stock transactions subject to gains and related tax withholding through ADP.* Entering data into payroll and administrative databases and software programs.* Calculating wages, benefits, tax deductions, commissions, etc.* Maintaining accurate records of payroll documentation and transactions in accordance with SOX requirements* Responding to payroll-related inquiries and resolving concerns.* Collecting timesheet data and payroll information.* Performing account balance and payroll reconciliations and payroll journal entries.* Preparing payroll related financial reports for accounting and auditing purposes.* Preparing periodic payroll reports for review by management.* Process new state registrations.* Prepare and reconcile year-end reporting preparations such as W-2.* Continuous process improvements within the Company's payroll function.Qualifications:* 3+ years of direct payroll processing experience.* 1+ years of direct experience using ADP.* Demonstrated knowledge of local, state, and federal payroll tax laws and regulations.* Working knowledge of basic accounting principles and payroll practices.* Experience implementing payroll processes.* Ability to work collaboratively across functional teams.* Exceptional time management and project management skills.* Must have sound interpersonal, communication, organizational, and analytic skills.* Ability to work in dynamic and fast-paced environment.* Bachelor's degree in accounting, finance or a related field is preferred.* CPP certification preferred.*Desired Additional Qualifications:* CPP certification* Experience with processing payroll with ADPCompetencies:* Commitment to integrity and always doing what's right.* Self-motivated and able to work autonomously. Can produce top-quality work with little oversight.* Demonstrated ability to juggle multiple priorities in a fast-paced, entrepreneurial environment.* Direct and candid. Challenges the status quo.

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