Financial Accountant (m/f/x)
Accounting & Finance
Mannheim, Germany
Posted on Sep 1, 2026
As a Financial Accountant, you will contribute your expertise to take our finance team to the next level and help build a scalable finance function. You will take ownership, optimize processes, establish forward-looking standards, and support our international expansion in the USA, France, the Netherlands, Spain, the United Kingdom, and Italy.
With your get-things-done mindset, you actively tackle challenges and develop innovative solutions. You are far more than a traditional accountant – you are an operational and strategic partner who shapes future-proof processes and supports all stakeholders with confidence and expertise. Based at our headquarters in Mannheim, you will play a key role in enabling our global growth.
As a SaaS market leader in the ESG space, we are shaping a sustainable future together. Become part of our dynamic, fast-growing international SaaS unicorn and drive our team forward with your vision, energy, and hands-on mentality!
- Abteilung
- Finance
- Beschäftigungsart
- Festanstellung - Vollzeit
- Standort
- Mannheim
- Arbeitsplatztyp
- Hybrid
Your Responsibilities
- Accounting: Independent recording and processing of all ongoing business transactions, including accounts payable, fixed assets, and general ledger accounting, as well as postings for banks, cash, credit cards, and travel expenses.
- Financial Statements: Coordination and preparation of monthly, quarterly, and annual financial statements for all osapiens entities in Germany and abroad.
- 360° Responsibility: Full financial responsibility for selected osapiens entities, including audit support, reporting, and coordination with internal and external stakeholders.
- Payments: Execution and monitoring of group-wide payment transactions.
- Accounting & Reporting Standards: Clarification of accounting principles and handling of complex business transactions in cooperation with tax advisors, auditors, and controlling.
- Reconciliations: Responsibility for account reconciliations, intercompany reconciliations, and statistical reporting.
- Business Partnering: Supporting specialist departments and international subsidiaries as a competent finance business partner.
- Integration: Onboarding and integration of new entities into the accounting system landscape.
- Optimization: Continuous development of existing processes and systems, particularly in the areas of fast close readiness and internal control systems.
- Projects: Participation in special projects such as the implementation of a new ERP system, internationalization initiatives, or M&A processes.
Your Experience
- Completed vocational training with further qualification as a tax clerk or certified accountant, or a degree in business administration with a focus on accounting.
- Several years of professional experience (at least 3–5 years) in accounting, including strong experience with annual financial statement audits and accounting-related projects, ideally in an international environment.
- Solid knowledge of German GAAP (HGB) and tax law; additional knowledge of IFRS or US GAAP (including SOX) is an advantage.
- Ability to work within complex IT system landscapes and further develop them; experience in standardizing and digitalizing accounting processes.
- Confident user of Excel, DATEV and CRM systems. Experience in Oracle NetSuite is a plus.
- Fluent German (C2) and very good English skills (B2), both written and spoken.
Join us for this and more...
- A fast-growing B2B tech scale-up with unicorn status
- A purpose-driven mission, working with and for global industry pioneers to solve complex challenges
- Creative freedom through collaborative teamwork and an open communication culture
- Flexibility and strong team spirit through our hybrid working model
- Opportunities for personal and professional growth
- Sustainable mobility options for environmentally friendly commuting
- Team events and offsites with our global teams
- An inspiring work environment in Mannheim (and at our international locations)
Über osapiens
Bei osapiens vereinen wir mehr als 550 talentierte Köpfe mit einer gemeinsamen Mission: nachhaltiges Wachstum für Unternehmen weltweit zu ermöglichen. Gegründet im Jahr 2018 und mit Hauptsitz in Mannheim, Deutschland, sowie weiteren Standorten in Europa und den USA, haben wir die KI-gestützte osapiens HUB Plattform aufgebaut.
Diese Plattform umfasst derzeit 26 Enterprise-Lösungen, die auf unserer eigenen Multi-Tenant-Infrastruktur laufen – entwickelt für unternehmensübergreifende Zusammenarbeit und Automatisierung. Mit skalierbaren, sofort einsatzbereiten Lösungen ermöglichen wir eine schnelle Implementierung für Unternehmen jeder Größe, vom Großkonzern bis zum Mittelstand und über alle Branchen hinweg.
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