{"id":3014180,"url":"https://alion.io/job/darktrace-assistant-tax-manager","title":"Assistant Tax Manager","company":{"id":148,"name":"Darktrace","domain":"darktrace.com","url":"https://alion.io/company/darktrace","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":89,"open_postings":10,"ghost_share":0,"stale_share":0.4,"repost_share":0.1,"time_to_fill_p50_days":34,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Finance","role_family":"Finance","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":50000,"max_usd":117000,"period":"year","method":"role_country_seniority_unknown","sample_n":540},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Darktrace","optional":false},{"name":"Microsoft Excel","optional":false}],"status":"live","first_seen_at":"2026-10-21T16:07:31Z","employer_posted_date":"2026-10-21","last_verified_at":"2026-10-23T14:56:01Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Darktrace is a global leader in AI-driven cybersecurity, helping organizations stay ahead of evolving threats every day.\nDarktrace was built on a genuinely differentiated idea: that Adaptive AI could detect and respond to novel, real-time cyber threats. That approach matters more than ever in the era of AI. Today, our customers depend on us to stay ahead.\nAt Darktrace, we are energized by that responsibility. We work across teams and rally around a shared goal. We own outcomes end to end - step in, step up and see things through without waiting to be asked. We make decisions with urgency, say the hard thing, and hold each other to high standards with care and directness. We move first and learn fast anticipating where our customers are going next, continuously challenging ourselves.\nWe invest in the skills, learning and opportunities that help people deliver at the level their roles demand, and reward the aptitude and curiosity to grow beyond them.\nOur Values: Own It | Win as One | Raise Our Bar | Move First. Learn Fast\n\nJob Description:\nAs Assistant Tax Manager, you'll join our in-house Group Tax team and report to the Group Senior Tax Manager. You'll cover group tax reporting and UK corporation tax compliance. You'll also manage the outsourced providers who handle our tax compliance across a large international footprint, and oversee our UK R&D expenditure credit (RDEC) process. You'll own your work from start to finish, working closely with Finance and our external advisers.\nThis is a hybrid role with the expectation of attending our London office a minimum of 2 days a week.\nDay to day you'll be:\nPreparing quarterly and year-end group tax reporting under IFRS and US GAAP. This includes current and deferred tax, effective tax rate analysis and disclosures, plus the tax notes in the statutory accounts,\nPreparing UK corporation tax computations, returns and provisions, including the impact of RDEC,\nOverseeing our outsourced RDEC provider, including reviewing claims and supporting data,\nSupporting Patent Box claims, Corporate Interest Restriction (CIR) calculations and returns, and HMRC enquiries and correspondence,\nSupporting tax risk management and governance, including Senior Accounting Officer (SAO) compliance and the tax risk register,\nManaging outsourced providers who prepare tax returns in 25+ countries, including scoping the work, tracking deadlines, reviewing quality and monitoring fees,\nManaging data requests to Finance teams and local entities, and using Excel to collect, reconcile and check the data,\nManaging tax payments, including instalments and the cash tax calendar,\nPreparing cash tax and effective tax rate forecasts, and providing tax inputs for budget and forecast cycles.\nYou'll keep up to date with UK and international tax law changes and assess how they affect the group. You'll also support projects and one-off queries in areas such as transfer pricing and Pillar Two.\nCandidate requirements\nDarktrace warmly welcomes applications from ACCA or CTA qualified tax professionals with experience of group tax reporting under IFRS or US GAAP, and of UK corporation tax compliance. You'll have managed outsourced tax compliance providers across several countries, and you'll have strong Excel skills, including managing and analysing large data sets. You'll take ownership of the compliance process and meet deadlines. You'll also work well with colleagues outside tax, including Finance, Legal, R&D and HR, and you'll have strong written and verbal communication skills, including explaining tax positions clearly to non-tax colleagues.\nIt would be great if you also have:\nIn-house experience in a multinational group,\nExperience with tax provision or compliance software such as OneSource,\nExposure to RDEC, Patent Box and CIR,\nExposure to transfer pricing or Pillar Two.\n\nAs a growing business strengthening its governance and controls, this role plays a part in supporting high standards of integrity and accountability.\n\nDarktrace is an Equal Opportunity Employer. We consider all qualified applicants for employment without regard to race, color, religion, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran or military status, or any other characteristic protected by applicable federal, state, or local law.\nDarktrace is committed to providing reasonable accommodations to qualified individuals with disabilities in accordance with applicable laws. 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