Senior Assistant Controller – Financial Reporting, Accounting Operations & Automation Lead (Hybrid – San Francisco, CA)

About arenaflex

arenaflex is a fast‑growing technology‑driven organization that is redefining how intelligent solutions are delivered to enterprises worldwide. With a culture built on curiosity, collaboration, and continuous improvement, arenaflex empowers its employees to shape the future of AI‑enabled products while enjoying a supportive, inclusive, and high‑energy workplace. Our finance team is at the heart of this mission, providing the strategic insight and operational excellence that fuels rapid innovation and sustainable growth.

Why This Role Matters

As the Assistant Controller at arenaflex, you will be a pivotal leader in the finance organization, responsible for overseeing the integrity of our financial reporting, driving process automation, and partnering with senior leadership to deliver actionable insights. This position sits at the intersection of accounting, technology, and strategy, offering a unique opportunity to influence both day‑to‑day operations and long‑term financial direction.

Key Responsibilities

• Lead the core General Ledger (GL) accounting team covering asset accounting, operating expenses (OPEX), and global bookkeeping functions.
• Own the month‑end close process, ensuring timely, accurate, and compliant financial statements and disclosures.
• Develop and maintain robust internal controls, audit procedures, and financial reporting policies that align with US GAAP and regulatory requirements.
• Partner with the VP of Finance, cross‑functional leaders, and external auditors to drive financial performance and strategic initiatives.
• Identify opportunities for automation of manual accounting processes; lead the design and implementation of system enhancements in NetSuite, Zoho, and other ERP platforms.
• Manage relationships with external auditors, tax advisors, and third‑party service providers, ensuring seamless collaboration and high‑quality deliverables.
• Provide analytical support for new product launches and strategic projects, evaluating financial impact and recommending risk‑mitigation strategies.
• Mentor and develop junior accounting staff, fostering a culture of continuous learning and high performance.
• Collaborate with the broader finance organization to analyze financial results, prepare executive dashboards, and support decision‑making at the senior leadership level.

Essential Qualifications

• Education: Bachelor’s degree in Accounting, Finance, or a related field; CPA or CA certification is required.
• Experience: Minimum of 3 years of progressive accounting experience in senior or supervisory roles, preferably within public companies, late‑stage startups, or public accounting firms.
• Technical Expertise: Deep knowledge of US GAAP, financial reporting standards, and statutory compliance requirements.
• Systems Proficiency: Hands‑on experience with modern ERP systems, especially NetSuite and Zoho, and familiarity with automation tools.
• Data Skills: Strong analytical abilities, including SQL querying and data‑visualization tools (e.g., Power BI, Tableau).
• Leadership: Demonstrated ability to lead high‑impact projects, manage multiple priorities, and influence cross‑functional teams.
• Communication: Excellent written and verbal communication skills; ability to translate complex financial concepts into clear, actionable insights for diverse audiences.

Preferred Qualifications

• Experience in a technology or AI‑focused organization.
• Advanced degree (MBA or Master’s in Finance/Accounting).
• Hands‑on experience with cloud‑based financial planning and analysis (FP&A) tools.
• Track record of implementing process automation that resulted in measurable efficiency gains.
• Exposure to international accounting standards (IFRS) and multi‑currency reporting.

Core Skills & Competencies

• Strategic Thinking: Ability to see the big picture, anticipate financial implications, and propose forward‑looking solutions.
• Problem Solving: Comfortable tackling ambiguous, complex challenges and delivering pragmatic, data‑driven recommendations.
• Collaboration: Proven success working closely with product, engineering, legal, and operations teams to align financial goals.
• Attention to Detail: Commitment to accuracy and compliance in all financial deliverables.
• Adaptability: Thrive in a fast‑moving, high‑growth environment where priorities can shift quickly.
• Coaching Mindset: Passion for developing talent and building high‑performing teams.

Career Growth & Learning Opportunities

arenaflex invests heavily in employee development. As an Assistant Controller, you will have access to:

• Mentorship from senior finance leaders, including the VP of Finance and CFO.
• Professional development budgets for certifications, conferences, and advanced coursework.
• Opportunities to lead high‑visibility, cross‑functional transformation projects that shape the future of the finance function.
• A clear promotion pathway toward Controller, Finance Director, or senior leadership roles within the organization.

Compensation, Perks & Benefits

arenaflex offers a competitive compensation package that reflects the expertise you bring to the role. While exact figures are tailored to experience, the package typically includes:

• Base salary starting at $26 per hour (full‑time equivalent) with performance‑based bonuses.
• Comprehensive health, dental, and vision insurance plans.
• Retirement savings options with company matching contributions.
• Generous paid time off, parental leave, and flexible holiday policies.
• Hybrid work model – three days in the San Francisco office and two days remote each week.
• Professional development stipend, tuition reimbursement, and access to internal learning platforms.
• Wellness programs, on‑site fitness facilities, and employee assistance resources.
• Transportation benefits, including commuter subsidies and parking allowances.

Work Environment & Culture at arenaflex

Our San Francisco hub is a vibrant, collaborative space designed to inspire creativity and teamwork. The culture at arenaflex is built on four pillars:

• Innovation: We encourage bold ideas and give teams the autonomy to experiment.
• Inclusivity: Diverse perspectives are celebrated, and every voice is heard.
• Growth: Continuous learning is woven into daily routines, from lunch‑and‑learn sessions to hackathons.
• Impact: Employees see the tangible results of their work on customers, partners, and the broader industry.

Whether you are in the office collaborating on a new automation roadmap or working remotely to finalize month‑end close, you will be supported by a network of peers who value integrity, curiosity, and excellence.

How to Apply

If you are a proactive, detail‑oriented finance professional who thrives in a dynamic, technology‑focused environment, we want to hear from you. Join arenaflex and play a key role in shaping the financial future of a leading AI company.

Apply Now – Start Your Journey with arenaflex!