Sonya Misir — CEO

Finance leader with 15+ years of experience driving scale, capital strategy, and transaction execution in venture-backed and capital-intensive businesses across international jurisdictions. Currently Head of Finance at SquareX Group (acquired by Zscaler), where I lead enterprise financial architecture across Singapore and the United States. My work spans capital strategy, cross-border structuring, treasury, investor reporting, and transaction execution. I led financial workstreams for a US$20M Series A fundraise and I led end-to-end financial execution for the company’s acquisition by Zscaler, covering corporate due diligence, treasury transition, statutory and tax structuring, and global financial handovers across jurisdictions. My career has focused on building and scaling finance functions in high-growth environments. I work closely with founders, boards, and investors to translate complex financial dynamics into clear strategic decisions across capital structure and liquidity planning. Prior to SquareX, I served as Financial Controller at TurtleTree, where I rebuilt financial visibility following major capital raises and delivered a 15% structural operating cost reduction in a capital-intensive biotech environment. Earlier experience includes finance leadership roles across Pfizer, high-frequency trading environments, and Singapore-listed engineering groups. My focus sits at the intersection of finance leadership and enterprise strategy, particularly within companies navigating growth, capital events, and cross-border expansion.

Stackforce AI infers this person is a Finance Leader specializing in SaaS and Biotech sectors.

Location: Singapore, Singapore

Experience: 15 yrs 6 mos

Skills

Capital Strategy
Mergers & Acquisitions (m&a)
Financial Planning
Global Regulatory Compliance
Tax Advisory
Financial Consolidation

Career Highlights

Led financial execution for a US$150M acquisition.
Achieved 15% cost reduction in a biotech environment.
Expert in cross-border financial governance.

Work Experience

SquareX

Head of Finance (10 mos)

Senior Finance Manager (6 mos)

TurtleTree

Financial Controller (1 yr 6 mos)

Pfizer

Financial Analyst (2 yrs 6 mos)

Fenix One

Senior Accountant (1 yr 1 mo)

Rotary Engineering

Group Financial Accountant (11 mos)

HLB ATREDE

Audit Senior (4 yrs 5 mos)

Shanker iyer & co

Audit Associate II (2 yrs)

Akbar Ali & co

Audit Junior Assistant (1 yr 9 mos)

Education

Masters of Business Administration (MBA) at Nanyang Technological University Singapore

Bachelor of Arts (Hon) Accountancy & Financial Management at University of Portsmouth

Sonya Misir

CEO

Singapore, Singapore15 yrs 6 mos experience

Key Highlights

Led financial execution for a US$150M acquisition.
Achieved 15% cost reduction in a biotech environment.
Expert in cross-border financial governance.

Stackforce AI infers this person is a Finance Leader specializing in SaaS and Biotech sectors.

Contact

Skills

Core Skills

Capital StrategyMergers & Acquisitions (m&a)Financial PlanningGlobal Regulatory ComplianceTax AdvisoryFinancial Consolidation

Other Skills

Cross-Border Financial GovernanceTreasury & Liquidity ManagementSaaS Financial MetricsFinancial StatementsStrategic ThinkingAccrualsCompilation Of Financial StatementsGenerally Accepted Accounting Principles (GAAP)LeadershipGeneral LedgersDocumentationSpreadsheetsProject FinanceJournal Entries (Accounting)Corporate FP&A

About

Experience

Squarex

2 roles

Head of Finance

Promoted

May 2025 – Present · 10 mos · Singapore

In my role at SquareX Group, I oversee the enterprise finance function across a cross-border SaaS organisation operating in Singapore and the United States. My responsibilities extend beyond traditional finance leadership to include capital strategy, governance architecture, treasury oversight, and transaction execution. I work closely with founders, the board, investors, and external advisors to align capital structure, liquidity planning, and regulatory compliance with the company’s growth trajectory.
I led the financial workstreams supporting a US$20M Series A fundraise and played a central role in the company’s US$150M acquisition by Zscaler. This involved managing financial due diligence, coordinating investor and legal processes, overseeing treasury transitions, and ensuring financial integrity across entities. I also structure complex cross-border corporate changes, including the Singapore–US redomiciliation and holding company reorganisation, coordinating SAFE conversions, equity rollovers, and share swap arrangements alongside tax and legal advisors.
Alongside transaction work, I oversee treasury strategy, investor reporting frameworks, SaaS financial metrics, statutory compliance, and cross-border governance structures. I also mentor internal finance staff and coordinate closely with outsourced accounting partners while establishing operational infrastructure such as US payroll and employment frameworks.
𝐊𝐞𝐲 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬
Oversee finance operations across Singapore and US entities.
Lead Series A fundraising financial workstreams.
Manage cross-border corporate restructuring and redomiciliation.
Support M&A execution and financial due diligence.
Own treasury strategy and liquidity planning.
Build investor reporting and SaaS financial metrics.
Oversee audits, tax compliance, and governance matters.
Manage finance staff and outsourced accounting partners.
Establish US payroll and employment infrastructure.

Capital StrategyMergers & Acquisitions (M&A)Cross-Border Financial GovernanceTreasury & Liquidity ManagementSaaS Financial Metrics

Senior Finance Manager

Nov 2024 – May 2025 · 6 mos · Singapore

Turtletree

Financial Controller

Apr 2023 – Oct 2024 · 1 yr 6 mos · Singapore, Singapore · On-site

Served as the group-level finance lead across Singapore and United States entities following a ~US$40M capital raise, while supporting operations and finance coordination across India and distributed international teams. The role focused on strengthening financial visibility within a capital-intensive precision fermentation environment by introducing structured cost tracking, runway modelling, and disciplined capital allocation frameworks to support sustainable growth.
Worked closely with the CEO and C-suite to translate burn rate, milestone spending, and capital runway into clear financial insights for board-level discussions. Financial restructuring initiatives were implemented to improve operational efficiency and cost discipline, resulting in approximately 15% structural operating cost reduction through vendor consolidation, idle capacity rationalisation, and recommending a transition to a CDMO production model to reduce fixed infrastructure exposure.
Oversaw treasury and multi-entity liquidity coordination across the group, improving cash efficiency by approximately 25%. Financial governance and reporting frameworks were strengthened by implementing group-wide controls, aligning transfer pricing structures, and directing financial reporting under IFRS and US GAAP.
𝐊𝐞𝐲 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬
Lead group finance across Singapore, US, and India entities.
Implement cost tracking, runway modelling, and capital allocation frameworks.
Drive operating cost optimisation and efficiency initiatives.
Manage treasury and multi-entity liquidity coordination.
Oversee financial reporting under IFRS and US GAAP.
Implement financial governance and transfer pricing structures.
Lead ERP migration from Xero to NetSuite.
Support executive leadership with financial insights and runway planning.

Global Regulatory ComplianceFinancial StatementsStrategic ThinkingFinancial PlanningAccruals

Pfizer

Financial Analyst

Sep 2020 – Mar 2023 · 2 yrs 6 mos

I oversaw statutory and corporate tax compliance for two legal entities covering approximately 40 active pharmaceutical ingredients within a regional Centre of Excellence supporting Singapore, India, China, Costa Rica, and other jurisdictions. My work focused on ensuring accurate tax reporting, regulatory compliance, and financial integrity within a complex multinational manufacturing environment.
My responsibilities included managing complex corporate tax, GST, and transfer pricing matters, such as responding to IRAS queries related to cash pooling arrangements, royalty benchmarking, cost-plus structures, and intercompany service charges. I also administered Pioneer (PEI) and Development & Expansion Incentive (DEI) frameworks, ensuring accurate profit segmentation and continued compliance with EDB incentive requirements.
To support financial reporting and operational efficiency, I prepared and reviewed current and deferred tax provisions while validating revenue recognition, cost allocations, and intercompany balances under IFRS and US GAAP prior to group consolidation. I also worked closely with external auditors and Big 4 tax advisors, and improved reporting workflows by integrating SAP-FICO extracts into standardised templates, reducing manual processing time by approximately 30%.
𝐊𝐞𝐲 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬
Manage statutory and corporate tax compliance across regional entities.
Handle corporate tax, GST, and transfer pricing matters.
Administer PEI and DEI tax incentive frameworks.
Prepare tax provisions under IFRS and US GAAP.
Coordinate with auditors, tax advisors, and tax authorities.
Utilise SAP-FICO, Oracle, and Power BI for reporting.

Global Regulatory ComplianceTax AdvisoryCompilation Of Financial StatementsGenerally Accepted Accounting Principles (GAAP)Leadership

Fenix one

Senior Accountant

Jul 2019 – Aug 2020 · 1 yr 1 mo

Responsible for managing full-spectrum finance operations across five Singapore-based group entities within a lean high-frequency trading environment, reporting directly to the CFO. My role covered consolidated financial reporting, month-end closing, budgeting, and cash flow oversight while supporting financial discipline within a proprietary trading business generating multi-million revenue. It also involved monitoring daily liquidity positions, mark-to-market exposures, and capital movements to safeguard financial stability in a fast-paced trading environment.
In addition, I oversaw treasury positioning and intercompany coordination to maintain real-time cash visibility and group-wide liquidity control. I ensured statutory compliance under IFRS and local regulations by coordinating external audits and maintaining financial reporting integrity. My responsibilities also extended to payroll administration and HR governance across the group, embedding approval controls and compliance processes within a lean organisational structure.
𝐊𝐞𝐲 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬
Managed finance operations across five group entities within a high-frequency trading environment
Led consolidated financial reporting, month-end closing, budgeting, and cash flow oversight
Monitored liquidity positions, mark-to-market exposures, and capital movements
Oversaw treasury positioning and intercompany cash coordination
Ensured statutory compliance under IFRS and supported external audit processes
Administered payroll operations and HR governance with structured approval controls

Global Regulatory ComplianceTax AdvisoryCompilation Of Financial StatementsGeneral LedgersDocumentation

Rotary engineering

Group Financial Accountant

Jul 2018 – Jun 2019 · 11 mos · 17 Tuas Ave 20

My role covered group finance and treasury functions within a Singapore-listed EPC engineering group, supporting consolidation across 23 business units operating throughout Asia and the Middle East. I strengthened intercompany reconciliation and elimination processes to improve reporting accuracy and reduce unmatched balances at the group level.
Working closely with the Group Financial Controller, I prepared Audit Committee reporting packs and supported group-level financial analysis. I also coordinated treasury activities including cash flow forecasting, liquidity monitoring, trade finance facilities, and intercompany funding while assisting with budgeting and statutory reporting requirements.
𝐊𝐞𝐲 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬
Supported consolidation across 23 business units across Asia and the Middle East
Improved intercompany reconciliation and elimination accuracy
Prepared Audit Committee reporting packs and financial analysis
Coordinated treasury operations including cash flow forecasting and liquidity monitoring
Supported budgeting, forecasting, and statutory reporting compliance

Financial ConsolidationSpreadsheetsFinancial StatementsProject FinanceJournal Entries (Accounting)