Financial Controller

Optibus

. Manage the complete accounts receivable cycle from data preparation through collections .

Posted 11/2/2026full-timeSan Sebastian • SpainMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing the accounts receivable cycle, financial reporting, and compliance with Spanish tax regulations. Proficient in leveraging automation tools to optimize financial workflows and ensure accurate inventory management.

Highest-signal resume keywords

Accounts Receivable ManagementSpanish Tax ComplianceNetSuite ExperienceFinancial ReportingR&D Grant Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Revenue RecognitionInventory ManagementVAT FilingsFinancial AnalysisBookkeepingCash Flow OptimizationProcess ImprovementAudit JustificationTax Legislation KnowledgeSII Systems Knowledge

Soft Skills

Team CommunicationService OrientationFollow-Through

Tools & Technologies

NetSuiteAI Tools

Industry Keywords

FinanceAccountingR&D GrantsSpanish Tax RegulationsInventory Invoicing

About the role

Key responsibilities & impact

Manage the complete accounts receivable cycle from data preparation through collections
Execute monthly revenue recognition and invoicing processes
Monitor AR aging balances and optimize collections with internal teams
Maintain communication with supply chain to align inventory movements with financial records
Control inventory invoicing and manage related NetSuite processes
Partner with external tax advisors on Spanish and Mexico tax compliance
Prepare monthly VAT filings and annual tax returns
Stay current on local tax legislation and manage tax-related issues
Lead identification, application, and management of R&D grant opportunities
Ensure compliance with grant requirements and optimize funding outcomes
Lead the monthly financial close process
Review bookkeeping work, including bank reconciliations and AP entries
Perform monthly controls and analytical reviews over expenses and revenues
Oversee AP payment processes with focus on cash flow optimization
Maintain supplier relationships to optimize payment terms

Requirements

What you’ll need

Degree in Accounting, Finance, or a related field
Minimum 3 years’ experience in a finance controlling or accounting role
Fluency in English and Spanish (written and verbal)
Euskara is an advantage
Experience managing the inventory process from a finance perspective
Experience with Spanish tax regulations and processes
Experience in tracking, financial reporting, and audit justification of local and national R&D grants and subsidies
Knowledge of SII (Suministro Inmediato de Información) and Guipuzkoa TBAI systems
Ability to drive process improvements and leverage automation and AI tools to optimize financial workflows
Service-oriented with strong team communication and follow-through
Experience with NetSuite is strongly preferred
Based in the San Sebastian area and able to come to the office 3 days per week

Benefits

Comp & perks

Hybrid work environment with employees expected to be in the office 3 days a week and remaining days worked remotely
Dynamic and inclusive workplace culture
Growth and creativity opportunities
Collaboration with global teams focused on sustainability and innovation
Equal opportunity employer providing reasonable accommodations during the hiring process