Senior Java Developer - Associate/VP in London

Nomura is a global financial services group with an integrated network spanning approximately 30 countries and regions. By connecting markets East & West, Nomura services the needs of individuals, institutions, corporates and governments through its three business divisions: Wealth Management, Investment Management, and Wholesale (Global Markets and Investment Banking). Founded in 1925, the firm is built on a tradition of disciplined entrepreneurship, serving clients with creative solutions and considered thought leadership.

As the agency-model execution services arm of the Nomura Group, Instinet Incorporated subsidiaries provide brokerage services to clients in over 65 markets around the world. Through its advanced suite of electronic trading strategies, experienced high-touch trading group, top-ranked Commission Management services, award-winning desktop trading platform, and unparalleled access to insightful analytics, content and unique liquidity, Instinet helps institutions lower overall trading costs and ultimately improve investment performance.

As a senior Java Developer in the Crossing Technology team, the main responsibility is to develop, maintain, and improve the performance of Instinet’s Crossing Systems including (but not limited to) Instinet BlockMatch MTF and CBX crossing applications, as well as contributing to the vision and technical direction of Instinet's common Core trading systems.

Key objectives critical to success:

• Work with business stakeholders to elicit and analyse requirements for new and existing crossing applications.
• Collaborate with senior architects to design software that fits the needs of a business‑critical trading system.
• Make performance and latency improvement to Instinet’s crossing systems following performance engineering best practices.
• Take ownership for the entire software lifecycle of a development project from design, implementation, to production.
• Implement solutions in accordance with Nomura software standards, support and deliver high quality software to QA and UAT stakeholders.
• Work with deployment and Change Management functions to smoothly integrate changes into the production environment.
• Engage in peer‑review of colleagues’ software as appropriate to strengthen quality across the group.
• Provide timely 2nd level support for trading system software in the production environment (predominantly UK/US market hours with best‑efforts coverage at other times, and occasional weekend/holiday working).
• Produce good quality technical documentation and How‑Tos to encourage cross‑training.
• Provide mentorship and technical guidance to junior members in the team.

Skills, experience, qualifications and knowledge required:

• Working knowledge of equities trading systems preferably in crossing/matching engines.
• Proficient in FIX protocol trading workflows from the venue/exchange perspective.
• Experience in developing high volume, low‑latency trading systems in Java with knowledge in performance running, profiling, and monitoring.
• Knowledge in performance engineering methods and techniques.
• Background in various source code version control systems such as SVN and GIT.
• Experience working in a fast‑paced environment supporting mission critical systems.
• Familiarity with a variety of designs and methodologies (e.g. Agile and Scrum, Microservices, distributed systems, messaging).
• Strong core Java skills, Perl or Python.
• Good knowledge of SQL, Linux, and networking skills.

Nomura Leadership Behaviours:

• Explore Insights & Vision: Identify the underlying causes of problems faced by you or your team and define a clear vision and direction for the future.
• Making Strategic Decisions: Evaluate all the options for resolving the problems and effectively prioritize actions or recommendations.
• Inspire Entrepreneurship in People: Inspire team members through effective communication of ideas and motivate them to actively enhance productivity.
• Elevate Organizational Capability: Engage proactively in professional development and enhance team productivity through the promotion of knowledge sharing.
• Inclusion: Respect DEI, foster a culture of inclusion and psychological safety in the workplace and cultivate a "Risk Culture" (Challenge, Escalate and Respect).

Right to Work: The UK Government have taken steps to reduce net migration to the UK by limiting the number of overseas workers coming to the UK for employment. Please note that whilst we are able to consider applications from overseas workers from outside the UK (who require a Tier 2 Skilled Worker visa) we can only employ them if we can provide evidence that this is a genuine vacancy for a qualified role.

Diversity & Inclusion: Nomura is an equal opportunity employer. We value diversity and are committed to ensuring we best reflect the diversity of the communities we serve creating an inclusive environment for all our employees. We welcome all applications and do not discriminate on the basis of age, disability, gender identity and gender expression, pregnancy and maternity, marriage and civil partnership, race, religion or belief, sex or sexual orientation. If you require any assistance or reasonable adjustments due to a disability or long‑term health condition, please do not hesitate to contact us.