- Partner with finance and business stakeholders to understand requirements and translate them into scalable OneStream solutions
- Lead solution design, ensuring outcomes are robust, maintainable, and aligned to broader architecture and data strategy
- Develop and enhance OneStream applications across core use cases (reporting, planning, forecasting, reconciliations, and tax)
- Provide ongoing application support, troubleshooting issues and continuously improving existing solutions
- Act as a technical lead within the OneStream domain, guiding design decisions and promoting best practices
- Mentor and support junior team members, providing hands-on coaching and knowledge transfer
- Contribute to building internal capability and reducing reliance on external consultants
- Identify opportunities to optimise and evolve the platform, including leveraging new OneStream features and releases
- Proactively explore and apply AI-driven capabilities to improve development efficiency, automation, and business insight
- Drive reduction of technical debt and improve overall solution quality and sustainability
- Collaborate with architecture, infrastructure, data, and other system owners to ensure alignment and manage upstream/downstream impacts
- Support Agile delivery processes, including backlog refinement, estimation, and sprint planning
- Ensure high-quality delivery through structured testing and support for User Acceptance Testing (UAT)
- Manage deployments with appropriate controls, including release planning, runbooks, and hypercare support
- Maintain clear and accurate technical documentation to support knowledge sharing, auditability, and long-term maintainability
- Ensure compliance with organisational, regulatory, and security standards, including SOX requirements
- Stay current with OneStream platform developments, industry best practices, and emerging technologies, continuously bringing forward improvement ideas