> Markdown version of [/jobs/ext/4711001-product-owner-core-systems](https://www.wearedevelopers.com/jobs/ext/4711001-product-owner-core-systems). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Product Owner - Core Systems - **Company:** Onmo - **Location:** London, United Kingdom - **Experience:** Experienced - **Salary:** £54,842 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Business Analytics Applications, Payment Systems, Project Management Software, Microsoft Office, Transaction Processing (Computing), Technical Debt, Atlassian Tools - **Published:** November 14, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5965263214 ## About the Role * Three or more years of experience in product development, with detailed working knowledge of product development processes, turning technical capabilities and internal platforms into well-defined products that can be adopted and consumed across a business * Experience working with core banking systems, financial infrastructure, payment systems, transaction processing, ledgers, or similarly complex technology platforms * Strong domain knowledge and the ability to quickly understand complex technical and operational environments * Experience creating clear product and API documentation and establishing effective processes for provisioning or enabling capabilities for internal users and teams * Proven ability to own a product area and roadmap with a high degree of autonomy, while working effectively with delivery squads, engineers, and stakeholders * In-depth knowledge of agile methodologies for project management including Scrum and Kanban * Proficiency with product management tools and technology including the Atlassian and Microsoft suites * Sharp analytical and problem-solving skills, and strong experience of using analytical tools to inform decision making and assess performance and value * Understanding of business value related to features and functions * Outstanding verbal and written communication, presentation, leadership, and stakeholder management skills * A proactive, pragmatic and hands-on approach, with a willingness to get stuck in, understand problems, and find practical solutions * A strong sense of ownership and accountability, with the confidence to make decisions, challenge assumptions, and drive progress * Comfortable operating in a complex technical environment without needing to be closely managed, while knowing when to involve the wider team or escalate issues * A collaborative and positive attitude, with the ability to build trusted relationships across Technology, Operations, and the wider business ## Description * Own and develop the roadmap for Core Systems, ensuring priorities align with business strategy and operational needs * Build a strong understanding of core banking systems and capabilities, including the ledger, payment infrastructure, transaction processing, and the teams responsible for operating them * Identify needs, gather requirements, develop cases, assess value, and detail and prioritise epics, stories, bugs and defects to ensure work aligns with the product strategy and reduce technical debt * Develop detailed feature/epic/story requirements with comprehensive acceptance criteria * Translate complex technical capabilities into clear, usable products and services for internal users and teams across the business * Support quality assurance and coordinate/conduct user acceptance testing, ensuring that requirements are met and the product continues to improve * Communicate clearly with the engineering team, stakeholders, and senior leadership to define and measure success criteria, so plans and features are well understood, and meet expectations * Create and maintain clear API and product documentation, ensuring Core Systems capabilities can be effectively understood, accessed, and provisioned across the business * Periodically perform competitor analysis and research within the industry and beyond to identify opportunities for product enhancements * Collaborate with other POs, Product Lead, and Projects Lead, to ensure alignment of priorities and synchronise delivery * Serve as a product ambassador, sharing knowledge and answering questions * Manage risks associated with the product(s), making informed decisions to mitigate these * Develop and maintain strong domain knowledge, staying close to the underlying technology, operational processes, and business needs that support Core Systems