Financial Controller

Mammoth DS, Inc; South San Francisco (CA); On-site; USD 230,000 - 260,000; Full time

Benefits offered by this job

Generous PTO

12 paid holidays

401k with match

Lunch in office

Health, dental, vision insurance

Job summary

AtlasBase is seeking a Financial Controller to lead the accounting function and build scalable financial systems for rapid growth. Reporting to the CFO, you will drive GAAP compliance, internal controls, and strategic financial insights across operations and R&D.

You will partner with the executive team to support budgeting, forecasts, and investor communications, while ensuring accurate, timely financial reporting and robust controls in a fast-paced startup environment.

Qualifications

• 8+ years in accounting and finance, in Controller/Senior Accounting roles.
• Strong U.S. GAAP knowledge and audit management experience.
• Startup/fast-growth background in tech/biotech/hardware.
• Proven ability to design and implement scalable accounting processes.
• Leadership in budgeting, cash flow, and financial modeling.

Responsibilities

• Oversee day-to-day accounting operations, GL, AP/AR, payroll, and month-end close.
• Ensure GAAP-compliant financial statements, including revenue, leases, R&D capitalization, and stock-based compensation.
• Develop and implement internal controls, policies, and scalable processes.
• Manage cash flow forecasting, budgeting, and financial planning with executive leadership.
• Lead annual audits and tax preparations with external auditors.
• Implement and manage accounting systems and infrastructure for a growing startup.
• Collaborate with cross-functional teams to track project costs and financial performance.
• Prepare board-level financial reporting and support investor communications.

Skills

GAAP knowledge

Audit coordination

Financial modeling

ERP systems

Excel/Sheets

Education

CPA certification

Big 4 audit experience

Tools

NetSuite

Excel

Job description

About this position

About AtlasBase

AtlasBase is a fast-growing pioneer in Molecular Computing, bridging the gap between traditional IT and biotechnology. We are redefining global IT infrastructure by driving breakthroughs in both Molecular Compute and Molecular Data Storage. By commercializing synthetic DNA-based technologies at IT scale, AtlasBase delivers ultra-high-density, low-maintenance, and carbon-conscious solutions built for the explosive growth and value of the world's data. Leveraging nature’s most durable medium, we provide a virtually permanent foundation that transforms how the world processes and secures its most critical information.

Originally spun out of Twist Bioscience, our team is an elite fusion of scientists, engineers, and operators dedicated to solving some of the most complex infrastructure challenges on Earth. While our work is grounded in deep science, our success depends on world‑class talent across every discipline. We are seeking a Financial Controller who is ready to bring their expertise to a high‑impact environment and help us build a brand‑new category of technology.

The Role:

We are seeking a Financial Controller to lead the accounting function, with the vision and experience to build a strong financial foundation for rapid growth and provide strategic insight as we build a brand‑new category of technology. Reporting to the Chief Financial Officer, the Financial Controller will lead all aspects of accounting, financial operations, reporting, and internal financial systems and controls, while ensuring the rigor, scalability, and financial discipline needed to support rapid growth. You will be responsible for building scalable systems, strengthening internal controls, and ensuring financial accuracy and compliance. As the Company’s accounting leader, you will partner closely with our accomplished Executive Team and divisional leadership to support strategic decisions and operational growth.

Responsibilities:

• Oversee all day-to-day accounting operations, including general ledger, AP/AR, payroll, and month‑end close
• Ensure accurate and timely financial statements in compliance with GAAP, including technical matters such as revenue recognition, lease accounting, R&D expenditures and capitalization, and stock‑based compensation
• Develop and implement internal controls, accounting policies, and scalable processes
• Manage cash flow forecasting, budgeting, and financial planning in collaboration with executive leadership
• Lead annual audit and tax preparation with external auditors and advisors.
• Implement and manage accounting systems, tools, and infrastructure suitable for a growing startup
• Support contract review, financial modeling, and cost analysis to inform business decisions
• Partner cross‑functionally with Operations, R&D, and Sales/Business Development to track project costs and financial performance
• Prepare board‑level financial reporting packages and support investor communications, as needed
• Communicate Company performance and trends through effective use of dashboards and KPIs to support executive decision making

Qualifications:

• 8+ years of progressive accounting and finance experience, including experience in a Controller, Assistant Controller, or Senior Accounting Manager role
• Strong knowledge of U.S. GAAP and experience managing audits
• Prior experience in a high‑growth startup in technology, biotech, or hardware/manufacturing environment
• Proven ability to design and implement accounting processes and systems
• Demonstrated ability to manage budgets, cash flow, and forward‑looking financial modeling
• Exceptional attention to detail, analytical skills, and financial acumen
• Proficiency with accounting software (e.g., NetSuite or similar) and Excel/Google Sheets
• Ability to ‘see around corners’ to plan for what’s next and provide leadership in building the accounting & finance function
• Ability to operate both strategically and hands‑on in a fast‑paced environment.

Preferred Qualifications:

• CPA certification (required)
• Big 4 or related audit experience (required)
• Experience with cost accounting, sales accounting, inventory management, or manufacturing accounting (required)
• Experience leading Single Audits and supporting federal grant compliance or government contracting a plus
• Familiarity with SaaS or hybrid revenue models.

Additional :

• In-office or hybrid; relocation considered
• Authorization to work in the U.S is a precondition to employment. AtlasBase is unable to provide H1B visa sponsorship for this position at this time.

Competitive Benefits Package

• Generous PTO Policy
• 12 Paid Holidays
• 401k Program with Match
• Lunch and snacks in office
• Robust health, dental, vision insurance and more

Why AtlasBase?

AtlasBase is a pioneer in Molecular Computing, bridging the gap between traditional IT and biotechnology. We are redefining global IT infrastructure by driving breakthroughs in both Molecular Processing and Molecular Data Storage. By commercializing synthetic DNA-based technologies at IT scale, AtlasBase delivers ultra‑high‑density, low‑maintenance, carbon‑conscious solutions built for the explosive growth and value of the world's data. Leveraging nature’s most durable medium, we provide a virtually permanent foundation that transforms how the world processes and secures its most critical information. We’ve raised over $150M from ARCH Ventures (early investor in Illumina, Juno Therapeutics, Alnylam Pharmaceuticals, GRAIL, Array BioPharma et al), Deerfield Management (early investor in Nuvalent, Melinta Therapeutics et al) and other top‑tier investors. Based in South San Francisco, and our team comes from world class organizations like Twist Bioscience, Net App, Illumina, and other highly successful companies. Join us in building the future of Molecular Computing!

About AtlasBase

AtlasBase is a fast-growing pioneer in Molecular Computing, bridging the gap between traditional IT and biotechnology. We are redefining global IT infrastructure by driving breakthroughs in both Molecular Compute and Molecular Data Storage. By commercializing synthetic DNA-based technologies at IT scale, AtlasBase delivers ultra‑high‑density, low‑maintenance, and carbon‑conscious solutions built for the explosive growth and value of the world's data. Leveraging nature’s most durable medium, we provide a virtually permanent foundation that transforms how the world processes and secures its most critical information.

Originally spun out of Twist Bioscience, our team is an elite fusion of scientists, engineers, and operators dedicated to solving some of the most complex infrastructure challenges on Earth. While our work is grounded in deep science, our success depends on world‑class talent across every discipline. We are seeking a Financial Controller who is ready to bring their expertise to a high‑impact environment and help us build a brand‑new category of technology.

The Role:

We are seeking a Financial Controller to lead the accounting function, with the vision and experience to build a strong financial foundation for rapid growth and provide strategic insight as we build a brand‑new category of technology. Reporting to the Chief Financial Officer, the Financial Controller will lead all aspects of accounting, financial operations, reporting, and internal financial systems and controls, while ensuring the rigor, scalability, and financial discipline needed to support rapid growth. You will be responsible for building scalable systems, strengthening internal controls, and ensuring financial accuracy and compliance. As the Company’s accounting leader, you will partner closely with our accomplished Executive Team and divisional leadership to support strategic decisions and operational growth.

Responsibilities:

• Oversee all day-to-day accounting operations, including general ledger, AP/AR, payroll, and month‑end close
• Ensure accurate and timely financial statements in compliance with GAAP, including technical matters such as revenue recognition, lease accounting, R&D expenditures and capitalization, and stock‑based compensation
• Develop and implement internal controls, accounting policies, and scalable processes
• Manage cash flow forecasting, budgeting, and financial planning in collaboration with executive leadership
• Lead annual audit and tax preparation with external auditors and advisors.
• Implement and manage accounting systems, tools, and infrastructure suitable for a growing startup
• Support contract review, financial modeling, and cost analysis to inform business decisions
• Partner cross‑functionally with Operations, R&D, and Sales/Business Development to track project costs and financial performance
• Prepare board‑level financial reporting packages and support investor communications, as needed
• Communicate Company performance and trends through effective use of dashboards and KPIs to support executive decision making

Qualifications:

• 8+ years of progressive accounting and finance experience, including experience in a Controller, Assistant Controller, or Senior Accounting Manager role
• Strong knowledge of U.S. GAAP and experience managing audits
• Prior experience in a high‑growth startup in technology, biotech, or hardware/manufacturing environment
• Proven ability to design and implement accounting processes and systems
• Demonstrated ability to manage budgets, cash flow, and forward‑looking financial modeling
• Exceptional attention to detail, analytical skills, and financial acumen
• Proficiency with accounting software (e.g., NetSuite or similar) and Excel/Google Sheets
• Ability to ‘see around corners’ to plan for what’s next and provide leadership in building the accounting & finance function
• Ability to operate both strategically and hands‑on in a fast‑paced environment.

Preferred Qualifications:

• CPA certification (required)
• Big 4 or related audit experience (required)
• Experience with cost accounting, sales accounting, inventory management, or manufacturing accounting (required)
• Experience leading Single Audits and supporting federal grant compliance or government contracting a plus
• Familiarity with SaaS or hybrid revenue models.

Additional :

• In-office or hybrid; relocation considered
• Authorization to work in the U.S is a precondition to employment. AtlasBase is unable to provide H1B visa sponsorship for this position at this time.

Competitive Benefits Package

• Generous PTO Policy
• 12 Paid Holidays
• 401k Program with Match
• Lunch and snacks in office
• Robust health, dental, vision insurance and more

Why AtlasBase?

AtlasBase is a pioneer in Molecular Computing, bridging the gap between traditional IT and biotechnology. We are redefining global IT infrastructure by driving breakthroughs in both Molecular Processing and Molecular Data Storage. By commercializing synthetic DNA-based technologies at IT scale, AtlasBase delivers ultra‑high‑density, low‑maintenance, carbon‑conscious solutions built for the explosive growth and value of the world's data. Leveraging nature’s most durable medium, we provide a virtually permanent foundation that transforms how the world processes and secures its most critical information. We’ve raised over $150M from ARCH Ventures (early investor in Illumina, Juno Therapeutics, Alnylam Pharmaceuticals, GRAIL, Array BioPharma et al), Deerfield Management (early investor in Nuvalent, Melinta Therapeutics et al) and other top‑tier investors. Based in South San Francisco, and our team comes from world class organizations like Twist Bioscience, Net App, Illumina, and other highly successful companies. Join us in building the future of Molecular Computing!

The pay range for this role is:

230,000 - 260,000 USD per year(HQ)