Senior Accountant - Implementation Project - REMOTE

Atrium is seeking on behalf of our client a Senior Accountant based in New York, NY .
A background check may be run only after a conditional offer is made, where permitted by law .
Position:
Senior Accountant

Employment Type:

Full-time
Compensation: 110-150k base + equity
As the Senior Accountant, you will lead the development of the company’s in-house accounting function, transitioning from an outsourced model to a scalable internal process. You will ensure accurate financial reporting, maintain compliance with GAAP, and support operational efficiency in a high-growth environment. This role collaborates closely with the CEO and Finance Lead to establish strong accounting foundations for future growth.
Build and implement accounting processes and systems to transition from outsourced to in-house operations.
Own the month-end close process, ensuring timely and accurate financial reporting.
Prepare GAAP-compliant financial statements and maintain internal controls.
Partner with leadership to improve processes and create structure in a lean, fast-paced environment.
Support audits, compliance requirements, and financial planning initiatives as needed.
3+ years of accounting experience, preferably in a high-growth or startup environment.
~ Strong knowledge of GAAP and experience with month-end close and financial statement preparation.
~ Proven ability to design and implement accounting processes and systems from the ground up.
~ Experience reconciling large transaction volumes and managing marketplace or payment flow accounting.
~ Prior experience as the first in-house accountant or in a similar build-from-scratch role.
Familiarity with accounting software and ERP systems implementation.
Strong analytical skills and ability to identify process improvement opportunities.
Background in industries with complex transaction structures or compliance requirements.
Bachelor’s degree in Accounting, Finance, or a related field.
CPA designation or progress toward CPA preferred.
Continuing education in accounting standards and compliance is a plus.
Advanced Excel skills and familiarity with financial modeling tools.
Knowledge of internal controls and audit best practices.
If eligible under the ACA, medical, dental and vision benefits and time off in accordance with local paid sick time laws will be offered. Additional benefits may include paid holidays, a 401(k)-retirement plan, life insurance, disability coverage, and an employee assistance program, where applicable. Other compensation programs may include overtime, shift differentials, bonuses, commissions, or other incentive compensation, where applicable.
Commitment to Diversity
As a woman-owned firm, we value diversity. We are an equal opportunity and affirmative action employer and will consider all applications without regard to race, sex (including gender, pregnancy, sexual orientation and gender identity), age, color, religion or creed, national origin or ancestry, veteran status, disability (physical or mental), genetic information, citizenship or any other characteristic protected by law. We will ensure that individuals with disabilities are provided with reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.

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