17 hours ago
London, United KingdomSenior
Responsibilities
- Develop and optimize Java and Rust code for low-latency event-sourced systems with 10–100 microsecond response times.
- Build application frameworks and algorithmic trading utilities, including market data replay and back-test/simulation systems.
- Lead integration of functions, deployment of new products, and process enhancements.
- Analyze complex business, system, and industry processes to define and implement solutions.
- Provide subject-matter expertise in Java low-latency development, market data, algorithmic trading, and performance tuning.
- Consult with end users to define system specifications and incorporate them into system designs.
- Communicate with senior leaders and external parties, build consensus, and mentor junior and less experienced developers.
- Produce clear technical documentation and model key system aspects with UML sequence diagrams.
Requirements
- Demonstrated subject-matter expertise in application development.
- In-depth experience developing algorithmic trading applications, preferably in low-latency environments.
- Detailed experience with market data handling and associated technologies such as KDB and time-series databases.
- Strong Java development skills, including modern Java, the JVM, Linux, system calls, and kernel knowledge.
- Knowledge of TCP and other IP-based network protocols, including hardware-accelerated kernel bypass such as Solarflare OpenOnload.
- Experience with performance assessment, targeted tuning, application frameworks, event sourcing, and microservices-based systems.
- Demonstrated leadership, project management, architecture, communication, and development skills.
- Experience implementing projects and designing commercial-grade, mission-critical systems.
- C++ experience is preferred.
- Strong relationship-building, consensus-building, communication, and mentoring skills are required.
Benefits
- Hybrid working model with up to two days working from home per week.
- 27 days of annual leave plus bank holidays.
- Discretionary annual performance-related bonus.
- Private medical care and life insurance.
- Employee Assistance Program.
- Pension plan.
- Paid parental leave.
- Special discounts for employees, family, and friends.
- Access to learning and development resources.
About Citi
Citi is a public financial-services company offering consumer and institutional banking, credit cards, wealth management, treasury and trade solutions, and capital-markets services. It serves individuals, corporations, financial institutions, and governments in more than 160 countries and jurisdictions, earning interest and fee income from lending, payments, trading, and advisory. Founded in 1812 and headquartered in New York, it trades on the NYSE under the ticker C.