Jobs at Multiplier Holdings

Lead design and build of an artifact-first knowledge platform: ingestion, extraction, retrieval, provenance, approval, and review UIs. Ship reliable, observable production systems that scale across firms, mentor engineers, partner with tax professionals, and drive product-quality and correctness for applied-AI workflows.

Design, build, and operate systems for pricing, quoting, invoicing, payments, reporting, organizational data, and workflow orchestration. Translate ambiguous business needs into scalable integrations with accounting and payment platforms, ensure correctness and observability, lead technical design, and collaborate cross-functionally to deliver business-critical systems.

Design, build, and operate systems powering pricing, invoicing, payments, reporting, and organizational workflows across portfolio companies. Translate ambiguous business needs into scalable integrations and workflow orchestration, improve observability and reliability, and drive end-to-end delivery of business-critical features in close partnership with product, finance, and operations stakeholders.

Own end-to-end product onboarding and ongoing adoption for portfolio tax firms. Lead product solutioning, data migration, tooling consolidation, billing setup, training, metrics instrumentation, product ops, last-mile customization, reporting, and stakeholder enablement to drive adoption and firm efficiency.

Lead design and implementation of the Knowledge Intelligence Pod's core systems: ingestion, extraction, retrieval, provenance, review UIs, and evaluation. Ship reliable production code, set architecture and observability standards, mentor engineers, and partner with tax professionals to ensure correctness and scalability across firms.

Lead Onside's tax offering for fast-growing UK tech clients, owning portfolios and delivering advice on transfer pricing, EMI, EIS/SEIS, VAT and corporate tax. Produce reports, filings and HMRC submissions, review returns, undertake technical research, support restructurings and remuneration planning, and build client relationships while improving processes, automation and delivery in a remote, technology-led environment.

Lead a small engineering sub-pod while remaining hands-on: scope and deliver workflow automation for tax or corporate accounting, hire and develop ~2 engineers, engage clients to validate solutions, set technical direction, and coordinate across pods to ship reliable, compliant, client-facing systems rapidly.

Manage day-to-day delivery for a portfolio of UK tech clients: prepare and review year-end accounts, corporation tax, VAT, management reporting; oversee outsourced bookkeeping; improve processes and automation; monitor KPIs and profitability; lead client relationships; support onboarding, fundraising and upsell opportunities while working remotely with significant autonomy.

Build and ship full‑stack features for tax professionals, translate tax workflows into scalable software, collaborate with product/design/AI teams, prototype rapidly, and maintain high code quality and documentation.

Build end-to-end, AI-native corporate accounting products from 0→1. Translate accounting workflows into scalable software, prototype with users, ship production-quality full-stack features, and drive architecture and best practices.

Advise high-net-worth UK and US individuals on cross-border tax matters; prepare and self-review complex UK and US tax returns for individuals, trusts and entities; review junior work, mentor staff, take client meetings, conduct technical research, ensure compliance, collaborate with legal/wealth teams, and contribute to software and process improvements.