IS Finance Manager (Temporary – Maternity Leave Cover), (m/w/d) (80-100%)

Accelleron is accelerating sustainability in the marine and energy industries as a global technology leader in turbocharging, fuel injection, and digital solutions for heavy-duty applications. Building on a heritage of over 100 years as a trusted industry partner, the company serves customers in more than 100 locations in over 50 countries. Accelleron’s 3,000 employees are continuously innovating to deliver best-in-class products, services, and solutions that are mission-critical for the energy transition. You will join a team of experts in an exciting international environment, committed to excellence and innovation. Together, we support our customers in driving the transition toward sustainable industries with cutting-edge technology, deep expertise, and smart solutions. At Accelleron, we foster diversity and inclusion, welcoming and celebrating individual differences as a source of strength.

We are a forward-looking company that places innovation and technology at the heart of everything we do. To ensure continuity and stability within our global finance IT landscape, we are looking for an experienced IS Finance Manager to temporarily cover a maternity leave.

This is a full-time, fixed-term position from April 2026 until mid-December 2026, based in Baden, Switzerland, offered with a hybrid working model.

In this strategic leadership role, you will be responsible for the global governance, development, and operation of finance information systems across finance, controlling, tax, and treasury. You will lead a team of internal and external professionals, manage complex vendor ecosystems, and ensure that finance applications effectively support business priorities and the company’s digital roadmap.

You will report directly to the Group CIO and work closely with senior finance stakeholders in Switzerland and worldwide. The role plays a key part in ensuring operational continuity, delivery of critical initiatives, and effective stakeholder alignment throughout the maternity leave coverage period.

Your responsibilities:

Global IS Finance Leadership & Strategy:

• Ensure continuity of leadership for the global IS finance application landscape, covering SAP and non-SAP finance solutions. Execute and govern the finance IT roadmap in close alignment with finance stakeholders and corporate IT strategy.

• Align priorities across SAP FI/CO, SAP BI/BW (finance), and other finance applications in the areas of Accounts Payable, Treasury, General Ledger reconciliation, and e-invoicing.

• Act as the primary IS counterpart for senior finance stakeholders, ensuring clear communication, alignment, and effective decision-making.

IS Sponsor Role – SAP S/4HANA FI/CO Migration

• Act as IS Sponsor for the SAP S/4HANA migration project for the FI/CO area, representing the IT organization towards business, vendors, and executive stakeholders.

• Own end-to-end IS accountability for the FI/CO workstream, ensuring alignment with overall program objectives, architecture principles, and quality standards.

• Track project status, milestones, risks, and dependencies, ensuring transparency and timely escalation where required.

• Split and structure tasks across internal team, ensuring clear ownership, priorities, and delivery expectations.

• Oversee solution design and key architecture decisions on the IS FICO side, ensuring scalability, security, and long-term sustainability of the FI/CO landscape.

• Manage escalations and resolve cross-functional issues, ensuring effective collaboration between IT, finance business counterparts, and external implementation partners.

• Ensure close alignment with finance process owners, translating business requirements into robust and feasible IT solutions.

Application Ownership & Operations

• Ensure stable, secure, and compliant operations of finance systems, including SAP S/4HANA (Public Cloud), SAP ECC, SAP BI/BW and key non-SAP finance applications.

• Oversee application lifecycle activities, including enhancements, integrations, and operational support.

• Ensure high-quality support models, issue resolution, and continuous improvement of system performance and user experience.

Project & Program Management

• Lead ongoing and planned global finance IT initiatives during the maternity leave coverage period.

• Manage scope, timelines, risks, and dependencies across complex, cross-functional projects.

• Ensure effective coordination between internal IT teams, finance business partners, and external consultants.

Stakeholder & Vendor Management

• Maintain strong relationships with finance stakeholders, ensuring business needs are understood and addressed.

• Manage strategic vendor relationships, including performance monitoring, contract adherence, and escalations.

• Oversee external consultants, ensuring effective onboarding, quality control, and knowledge continuity.

Financial & Contract Management

• Manage IS finance budgets, forecasts, and cost control during the assignment period.

• Own contract management with vendors and service providers, including commercial governance and cost transparency.

• Ensure adherence to agreed financial frameworks and reporting requirements.

Team Leadership & People Management

• Lead and support internal and external IS finance team members, ensuring continuity of operations and delivery.

• Ensure onboarding of new employees or consultants as required.

• Support recruitment activities if needed, depending on organizational requirements during the coverage period.

Your background:

• Bachelor’s degree in Information Technology, Computer Science, Finance, Business Administration, Business Informatics, or a related field.

• Minimum of 10 years of experience in IT, finance IT, or business–IT leadership roles with a strong finance focus.

• Proven experience managing SAP FI/CO landscapes

• Strong understanding of end-to-end finance processes such as Procure-to-Pay (P2P), Record-to-Report (R2R), Treasury, and Financial Close.

• Demonstrated experience leading complex IS projects and multi-vendor environments.

• Strong financial acumen, including budget ownership, forecasting, and contract management.

• Excellent stakeholder management and communication skills, with the ability to interact confidently with senior leadership.

• Experience leading internal teams and external consultants, including quality control and escalation management.

• Structured, proactive, and solution-oriented working style with a strong customer focus.

• Fluency in English; German is an asset.

Your benefits:

• Canteen

• Childcare

• Modern office, smart working

• Flexible Working Model

• Attractive holiday plans

• Employee Assistance Program