Senior Manager, Tax (Singapore)

About the role

Lumilens, a deep-tech manufacturer of optical transceivers and optics for AI infrastructure, is hiring a Senior Manager, Tax for its Singapore entities. This is a fully hands-on individual contributor role with no direct reports: you will personally prepare returns, computations, reconciliations, permit reviews and documentation, while partnering with supply chain, operations, legal and US finance and tax leadership to build scalable tax processes and controls.

Key responsibilities

• Customs and trade compliance: own Singapore Customs compliance for imports, exports and re-exports of components and finished optical modules, including TradeNet permits, HS classification, valuation and country of origin; manage forwarders, brokers and 3PL/VMI partners; optimise duty and landed cost through free trade agreements and certificates of origin; build customs SOPs and controls, support export control screening and lead readiness for Singapore Customs audits.
• GST: prepare and file quarterly GST returns, reconcile to NetSuite, handle voluntary disclosures and GST health checks; manage the Major Exporter Scheme (MES) and Import GST Deferment Scheme (IGDS); advise on cross-border supplies, zero-rating, reverse charge and intercompany recharges.
• Transfer pricing: implement TP policies for contract manufacturing, R&D, procurement, IP licensing and management services, manage year-end true-ups, prepare TP documentation and benchmarking, and support the global TP model and Pillar Two monitoring.
• Corporate income tax (support): support ECI and Form C filings, tax computations, withholding tax on cross-border payments and IRAS queries and audits; provide Singapore inputs to the group tax provision (ASC 740) and R&D claims.
• Tax and EDB grant governance: track award conditions and qualifying spend, prepare claims and reports, and keep records audit-ready; own the Singapore tax calendar and SOX-ready tax controls, manage external advisors and budgets.

Required profile

• Degree in accounting, finance or law; CA/CPA, ACCA or Singapore Chartered Tax Professionals accreditation preferred.
• 8-12 years of Singapore tax experience, ideally across Big 4/advisory and in-house roles.
• Hands-on Singapore Customs and GST experience in a manufacturing, electronics or semiconductor environment, and working knowledge of Singapore TP requirements.
• Preferred: semiconductor, photonics, electronics hardware or contract manufacturing experience; experience with MES, IGDS, licensed warehouse schemes, EDB grants, ASC 740, SOX tax controls and APAC trade exposure (Thailand, India, China).

Required skills

• Comfortable building processes from scratch in a fast-paced startup, with strong attention to detail.
• ERP and Excel data skills (NetSuite preferred).
• Clear communication of tax and customs requirements to non-tax stakeholders.

What we offer

• A highly visible role shaping landed cost, margin and cash in a fast-scaling deep-tech manufacturing company.
• Competitive compensation and comprehensive health benefits.
• Exposure to cross-functional and global teams across Singapore, Thailand, India and the United States.
• The chance to build Singapore tax processes and systems from the ground up.