OneStream Consultant

Altum Consulting; City of London; Hybrid; GBP 120,000 - 130,000; Full time

Job summary

A consulting firm specializing in finance transformation is seeking a OneStream Consultant in London. This role involves leading the rollout and optimization of OneStream, collaborating with senior stakeholders to drive finance strategy, and advocating for technical capabilities across the business. The ideal candidate will have hands-on experience with OneStream and strong change management skills. This is a hybrid position offering competitive salary and flexible working options.

Benefits

Private medical insurance

Pension

Life assurance

Flexible working

Professional development

Qualifications

• Hands-on experience with OneStream setup and data integration.
• Experience in managing teams and driving change.
• Understanding of finance operations and reporting principles.

Responsibilities

• Advocate for OneStream, translating technical capabilities into business value.
• Collaborate with senior stakeholders to drive adoption and strategy.
• Configure and maintain OneStream, ensuring effective operation.
• Support data integration and define business processes.

Skills

OneStream setup and configuration

Change management skills

Collaboration with finance teams

Integration with ERP or reporting tools

Job description

practice area: Change and Transformation

job type: permanent

Job Title: OneStream Consultant
Location: London / Hybrid (office & remote)
Salary: £120,000 - £130,000 base up to 20% bonus
Benefits: Private medical insurance, pension, life assurance, flexible working, professional development

About the Role

Join a PE-backed organisation undergoing major finance transformation and global growth. This role is central to the rollout and optimisation of OneStream, influencing global finance operations, driving adoption, and shaping processes across multiple entities.

This is a high-impact opportunity to directly influence strategy, work with senior stakeholders, and advance into leadership roles.

Key Responsibilities

• Advocate for OneStream, translating technical capabilities into business value for both detailed and strategic audiences.
• Collaborate with senior stakeholders, including C-suite, to drive adoption and influence finance strategy.
• Configure, troubleshoot, and maintain OneStream, including setup, governance, and ongoing system management.
• Lead or work alongside sophisticated teams, ensuring effective operation and knowledge transfer.
• Support group-wide data integration and help define "how we do things" across the business.
• Work with external consultants and internal teams to ensure smooth system operation.
• Participate in workshops, training, and occasional travel.

Skills & Experience

• Hands-on OneStream experience: setup, configuration, governance, and data integration.
• Experience managing or collaborating with sophisticated teams in finance systems.
• Strong change management and influencing skills, able to drive adoption and improvements globally.
• Knowledge of group finance operations, reporting, and consolidation principles (accounting qualification not required).
• Ability to advocate for OneStream internally at both detailed and strategic levels.
• Experience integrating OneStream with ERP or reporting tools is advantageous.

Why Join

• Directly influence global finance transformation.
• Work in a fast-moving, high-growth environment with senior visibility.
• Hybrid working with flexible arrangements and professional development opportunities.
• Collaborative culture that rewards initiative and impact.

Want to know more?

By submitting this form and signing up for texts, you consent to receive text messages from Altum Partners Consulting Limited regarding job opportunities and updates. Message frequency varies. Message and data rates may apply. Reply STOP to opt‑out or HELP for more information. See our Terms & Conditions and Privacy Policy.