Sr. Manager, Process & Platform- OneStream
Mars
Listing collected from Mars's career site. NextChapter is independent of Mars.
Hackettstown, NJ · Posted October 26, 2026
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This listing does not state pay. Across 31 open sr manager listings that state pay, the middle half runs $154,500 to $222,000 and the median is $168,500.
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About the job
Job Description:
The Sr. Manager, Process and Platform ensures the integrity and reliability of Mars Inc.’s OneStream system. This role will provide internal quality management for the design, implementation and maintenance of the OneStream system and period close process changes. You will lead a team of 3 OneStream administrators combining leadership as well as hands-on involvement. This role requires building a strong network and work in close collaboration with IT, MGSF/SFO, Controllership and FP&A at the Corporate and GBU levels to ensure the needs of all stakeholders will be met. The job holder will work closely with our external consultants to ensure OneStream design will meet the needs of External and Internal reporting with the flexibility to change as our business Is constantly evolving. Driving good quality data is crucial for the success of our digital tools to help drive better business decisions
What are we looking for?
Bachelor’s degree in IT, Accounting, Finance, or related field.
10+ years’ experience working with financial systems, at least 5 in the EPM space and 2 years of OneStream experience.
Experience developing and leading high-performance teams.
Strong understanding of US GAAP and consolidation accounting in a large multinational company.
Excellent verbal and written communication skills and the ability to explain technical concepts to non-technical people
Strong knowledge of internal controls/SOX
Experience in fast-paced environment, with the ability to lead multiple tasks and meet deadlines.
What will be your key responsibilities?
Development, maintain, and support the OneStream financial system.
Oversee governance of system changes, upgrades, security, and archival.
Lead a team of 3 OneStream administrators who support the periodic, quarterly, and annual financial close process as well as new unit integrations and training.
Business partner across the entire ecosystem in the design, implementation and delivery of corporate requirements and transparency of financial performance through integrated systems, processes and ultimately reporting.
Provide OneStream expertise on technology/process improvements and upgrades.
Provide critical support to the financial close process as it relates to OneStream.
Continual assessment and refinement of OneStream system to ensure alignment with changing business requirements.
Ad-hoc projects (related to OneStream)
Oversee data inflow and outflow in OneStream from various ERP/Planning/Allocation systems.
What can you expect from Mars?
Work with over 130,000 diverse and talented Associates, all guided by The Five Principles.
Join a purpose driven company, where we’re striving to build the world we want tomorrow, today.
Best-in-class learning and development support from day one, including access to our in-house Mars University.
An industry competitive salary and benefits package, including company bonus.
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The base pay range for this position at commencement of employment is between the range listed below, however, base pay offered may vary depending on multiple individualized factors, including but not limited to job-related knowledge, skills, and experience. The total compensation package for this position will include variable pay, medical and dental benefits, participation in 401k plan, and paid time off benefits. Details of participation in these benefit plans will be provided if an applicant receives an offer of employment.
The pay range shown is applicable to all US locations listed within the job posting:USD 169,840.00 - USD 233,530.00