Senior Product Owner (external APIs product team) at Xntltd

Company & Culture EXANTE is a pioneering wealth tech company that delivers cutting-edge centralized trading solutions and robust B2B financial infrastructure, driving value through innovative technology. Our proprietary trading platform provides seamless access to a diverse range of financial instruments, including stocks, ETFs, bonds, futures, and options, all within a single, multi-currency account. As a rapidly expanding global firm with over 600 talented employees from 65 nationalities across 70 locations, we are a frontrunner in the financial sector. Our investment priorities are clear: We prioritize investing in our most valuable asset—our people. Join us in shaping the future of finance. Responsibilities Own the full product lifecycle for client-facing trading APIs. Define product roadmap, requirements, technical specifications and success criteria. Collaborate with engineering teams to ensure consistent API behavior and high performance across FIX, WebSocket, and HTTP interfaces. Maintain API documentation, protocol guidelines and versioning standards. Work closely with backend, trading engines and market data systems to ensure: • Low-latency and reliable execution, • API stability under high load, • Backward compatibility and smooth client onboarding. Support integration with client systems, liquidity providers, and trading partners. Ensure adherence to compliance, trading workflows, and best execution requirements. Monitor performance, usage, reliability to guide continuous improvement. Communicate updates, roadmap status, and technical details to internal and external stakeholders. Qualifications • 5+ years of experience as a Product Owner or Product Manager in fintech or trading platforms. • Extensive experience with trading APIs: • FIX Protocol (order flow, execution reports, sessions). • HTTP/REST and WebSocket APIs for trading, market data, static data. • Experience working with trading bridges/gateways, liquidity providers and order routing systems. • Strong understanding of order types, instrument types, execution logic and rejection handling. • Practical experience creating and maintaining API documentation. Domain Knowledge • Trading experience is a strong advantage. • Understanding of both traditional and crypto asset classes. • Familiarity with OMS, EMS, market data, static data concepts. • Knowledge of regulatory frameworks (e.g., MiFID II, best execution) is a plus. • Understanding of risk checks is an advantage. Collaboration & Process • Ability to define product roadmaps, write structured technical specifications, set clear priorities. • Proven experience working with cross-functional engineering teams in complex, multi-technology environments. • Excellent communication skills with the ability to explain complex technical concepts in a clear and accessible way. Additional Requirements • Experience working with distributed or remote teams. • Fluent English. Nice to Have • Integration experience with major exchanges or liquidity providers. • Previous experience with trading APIs in a bank trading environment. • Technical background in development or QA. A group of disruptive technology experts created EXANTE. With an impressive track record in the industry and knowledge of the markets, our systems are built to democratize access to global financial instruments for professional traders and institutional investors. Through our robust, cutting-edge trading platforms, you can offer clients access to comprehensive, global financial instruments and investment possibilities while keeping their data safe and private. EXANTE is a global prime broker backed by proprietary technology and dedicated service. All regulated group companies and fully controlled affiliates and subsidiaries are committed to compliance with data protection laws, including the GDPR. We process personal data in line with the GDPR principles of fairness, purpose limitation, transparency, data minimisation, storage limitation and deletion, accuracy, confidentiality and integrity, and accountability. We rely on legitimate interests to assess and manage your application, after determining that our interests are not overridden by your rights and interests. You have the rights of access, rectification, data portability, erasure, restriction of processing, and objection to processing. To exercise your rights or contact our Data Protection Officer, please see our GDPR policy at [Upgrade to PRO to see link] We retain recruitment data only for as long as necessary for the purposes described above, after which it will be securely deleted unless we are required to keep it longer to comply with law or you consent to a longer retention. Where personal data is transferred outside the EEA, it will be protected to a standard at least equivalent to that sought by the GDPR. Personal data is safeguarded by technical and organisational measures that are reviewed and updated regularly. This website is not intended for individuals under 18 and we do not knowingly collect data relating to children .