We are looking for a -level Accountant with deep Spanish GAAP (PGC) expertise to join
our Accounting team during a period of strong growth. Reporting to the Finance Director, you
will partner closely with the Finance Director and the Senior Accountant on month-end close,
the year-end audit, and the IFRS transition for 2026.
This is a hands-on role for someone who enjoys ownership, brings a digital mindset, and is
comfortable using AI tools to scale their own productivity in a fast-paced, scale-up
environment.
Accounting and Close
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Perform daily entries and postings in the ERP, following accounting policies and procedures.
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Own day-to-day general ledger activity (journal entries, accruals, prepayments, fixed assets, intercompany).
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Run the monthly close calendar end to end. Produce trial balance, P&L, and balance sheet for management review.
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Execute reconciliations (banks, suppliers, payroll, prepaids, accruals) with supporting documentation.
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Maintain the chart of accounts, cost-center structure, and account reconciliations to a Big 4 audit standard.
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Organize invoices and supporting documentation using our internal file architecture and naming conventions.
Audit and External Reporting
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Support the rollout of IFRS reporting alongside PGC books, including chart-of-accounts mapping and IFRS 16, IFRS 15, and IFRS 9 treatments.
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Prepare statutory financial statements (PGC) and assist with subsidiaries' filings
Tax and Compliance
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Operate SII (Suministro Inmediato de Información) for real-time VAT reporting with Agencia Tributaria.
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Support the calculation of Corporate Income Tax (Modelo 200), VAT (Modelos 303), withholding taxes (Modelos 111 y 216), Intrastat and R&D tax deductions.
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Coordinate with the external tax advisor on monthly, quarterly filings and year-end provisions.
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Maintain documentation supporting transfer pricing and public-grant accounting.
Digital Tools and Automation
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Use AI tools, including a corporate Claude account, to automate recurring activities (data entry, reconciliations, document classification, narrative generation).
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Contribute to the design and continuous improvement of digital workflows across procurement, invoice approvals, and reporting.
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Help digitize and standardize accounting documentation, templates, and policies.
Onboarding Period (initial weeks only)
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During the initial onboarding period, you may support light treasury tasks (bank reconciliations, payment runs) until the Treasurer joins, after which the focus shifts fully to accounting.
Why Seynamics?
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Work at one of Europe's most promising deep-tech semiconductor scale-ups.
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Direct exposure to a live Series A round, and our first IFRS implementation.
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Accelerated development path. Real growth potential as the Accounting team scales.
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4 days per week at Barcelona office (city center).
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Competitive package, including base salary and participation in the Virtual Share Plan.
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A collaborative, technical, and growth-oriented environment that values direct ownership and clear thinking.
