Senior Lead Architect – OneStream

Systems Accountants; United Kingdom; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A global enterprise performance management firm in the UK is seeking a visionary Lead Architect with deep expertise in OneStream. This role involves leading architectural design and collaborating with cross-functional teams to ensure scalable solutions. The position promises a collaborative culture, flexible working arrangements, and competitive compensation. Apply by emailing for more details.

Benefits

Professional development and certification support

Flexible working arrangements

Competitive compensation and benefits package

Qualifications

• 3+ years of hands-on experience with OneStream, including design, configuration, and deployment.
• Proven experience as a Lead Architect or Senior Consultant in EPM or CPM platforms.
• Excellent communication and stakeholder management skills.

Responsibilities

• Lead the architectural design and delivery of OneStream solutions across enterprise clients.
• Define best practices, standards, and governance for OneStream implementations.
• Collaborate with finance, IT, and business stakeholders to translate requirements into scalable architecture.

Skills

OneStream expertise

Leadership

Cloud architecture

Financial consolidation

Data integration

Job description

Lead Architect – OneStream

Location: London – Hybrid working

Type: Full-time

Salary: Competitive + Benefits

Our client, a Global OneStream Vendor and leader in digital transformation and enterprise performance management are seeking to expand their services in the UK, they are now keen to bring on board a visionary Lead Architect with deep expertise in OneStream to join their team and shape the future of finance technology.

The Role

As Lead Architect, you will bring a deep understanding and implementations experience on OneStream. You’ll collaborate with cross-functional teams, guide technical design, and ensure scalable, high-performance solutions that meet complex business needs. This is a hands‑on leadership role where innovation meets execution.

Key Responsibilities

• Lead the architectural design and delivery of OneStream solutions across enterprise clients
• Define best practices, standards, and governance for OneStream implementations
• Collaborate with finance, IT, and business stakeholders to translate requirements into scalable architecture
• Mentor and guide development teams, ensuring technical excellence and alignment with business goals
• Stay ahead of industry trends and OneStream product updates to drive innovation
• Support pre‑sales activities, including solution design and technical presentations

What they’re Looking For

• Proven experience as a Lead Architect or Senior Consultant in EPM or CPM platforms
• 3+ years of hands‑on experience with OneStream, including design, configuration, and deployment
• Strong understanding of financial consolidation, planning, and reporting processes
• Expertise in data integration, performance optimisation, and cloud architecture
• Excellent communication and stakeholder management skills
• Ability to lead and inspire technical teams in a fast‑paced environment
• OneStream certification is a plus

What they Offer

• A collaborative, forward‑thinking culture
• Opportunities to work on global, high‑impact projects
• Professional development and certification support
• Flexible working arrangements
• Competitive compensation and benefits package

To apply for this role:

Please email [e-mail] to register your interest in this job opportunity or to find out more about it. Please reach out to hear about all the EPM opportunities SA are handling currently.