Senior Tax Analyst

What if the work you did every day could impact the lives of people you know? Or all of humanity?

At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients.

Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible.

Sr. Tax Analyst / CT Manager – Cambridge

Onsite 1 day per week (minimum)

The role

As Sr. Tax Analyst / CT Manager here at Illumina, you will play a pivotal role in our EMEA tax operations, reporting directly to the Associate Director - Tax.

You’ll collaborate closely with our General Ledger team, local tax advisers, and global tax colleagues to ensure accurate reporting, strategic tax planning, and compliance with evolving regulations. This is a high-impact role supporting Illumina’s continued growth and innovation across the region.

Illumina's employee benefits are industry-leading and include flexible time off, private medical insurance, compassion and care time off, leisure travel insurance, pension, employee stock purchasing program, volunteer time off, and much more!

Why you

You bring direct tax experience in a high-growth environment, ideally with exposure to multinational operations. You are a qualified Chartered Accountant or Chartered Tax Adviser (or working towards it), with a strong grasp of current Corporation Tax laws and anti-tax avoidance legislation such as ATAD and DAC6. Your analytical skills and accuracy are exceptional, particularly in working with large datasets and spreadsheets, and you’re proficient in SAP or similar ERP systems. You thrive in cross-functional collaboration, have excellent communication skills, and are comfortable navigating complex tax scenarios across jurisdictions. Experience with transfer pricing, R&D tax credits, and global structuring projects will be highly valued.

Key Responsibilities Include:

Corporate Tax Compliance

• Prepare and complete Corporation Tax returns , both in-house and via outsourced providers
• Compile UK-specific calculations including RDEC, patent box, and share-based payments
• Manage CT prepayments to optimize cashflow and leverage discounts

Tax Accounting & Advisory

• Collaborate with the General Ledger team on local GAAP tax accounting and US GAAP conversions
• Partner with local advisers to ensure correct tax treatment of global activities (e.g., FX, employee allowances, R&D)

Strategic Tax Planning

• Evaluate feasibility of bringing outsourced CT compliance in-house
• Monitor PE risk and guide business expansion strategies
• Support global supply chain and structuring projects

Transfer Pricing & Regulatory Compliance

• Ensure compliance with transfer pricing regulations, including local files and CbC reporting
• Respond to tax audits, notices, and information requests

Cross-Functional Collaboration

• Work with internal systems and departments to ensure accurate documentation of tax positions
• Assist with VAT and employment tax compliance as needed

INDEUR

We are a company deeply rooted in belonging, promoting an inclusive environment where employees feel valued and empowered to contribute to our mission. Built on a strong foundation, Illumina has always prioritized openness, collaboration, and seeking alternative perspectives to propel innovation in genomics. We are proud to confirm a zero-net gap in pay, regardless of gender, ethnicity, or race. We also have several Employee Resource Groups (ERG) that deliver career development experiences, increase cultural awareness, and offer opportunities to engage in social responsibility. We are proud to be an equal opportunity employer committed to providing employment opportunity regardless of sex, race, creed, color, gender, religion, marital status, domestic partner status, age, national origin or ancestry, physical or mental disability, medical condition, sexual orientation, pregnancy, military or veteran status, citizenship status, and genetic information. Illumina conducts background checks on applicants for whom a conditional offer of employment has been made. Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable local, state, and federal laws. Background check results may potentially result in the withdrawal of a conditional offer of employment. The background check process and any decisions made as a result shall be made in accordance with all applicable local, state, and federal laws. Illumina prohibits the use of generative artificial intelligence (AI) in the application and interview process. If you require accommodation to complete the application or interview process, please contact accommodations@illumina.com. To learn more, visit: https://www.dol.gov/ofccp/regs/compliance/posters/pdf/eeopost.pdf. The position will be posted until a final candidate is selected or the requisition has a sufficient number of qualified applicants. This role is not eligible for visa sponsorship.