Senior Low Latency Java Engineer (SVP)

Citi; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading financial institution in Greater London is looking for a Senior Low Latency Java Engineer (SVP) to drive application systems analysis and development within high-performance trading technologies. The ideal candidate will possess deep expertise in algorithmic trading, Java, and market data systems. This role emphasizes coding excellence, mentorship of junior developers, and collaboration across teams to enhance trading platforms. Attractive benefits include 27 days of annual leave, private medical care, and performance bonuses.

Benefits

27 days annual leave

Annual performance-related bonus

Private medical care

Life insurance

Employee assistance program

Pension plan

Paid parental leave

Special employee discounts

Qualifications

• 5+ years experience in Java low latency development.
• In-depth understanding of Algorithmic Trading applications.
• Experience with KDB and time-series databases.
• Experience in implementing complex projects.

Responsibilities

• Develop high-performance Java applications for low latency trading.
• Lead integration of functions and deploy new products.
• Consult with end users to identify system specifications.
• Mentor junior developers on Java best practices.

Skills

Java low latency development

Algorithmic Trading application development

Market Data handling

Project management skills

Event sourcing microservices

Relationship building skills

Education

Bachelor’s degree or equivalent

Tools

KDB

TCP/IP network protocols

Linux Operating System

Job description

Overview

25898632 Senior Low Latency Java Engineer (SVP)

This is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to lead applications systems analysis and programming activities.

The role is to provide senior, low-latency systems and application framework engineering (skilled in Java, C++, Rust, KDB, market data, algorithmic trading technology) within the London Based High Performance Architectures (HPA) team. The team require a specialist on algorithmic trading systems utilities including but not limited to market data replay and back test / simulation utilities. The HPA organisation are a high skilled enablement group of Subject Matter experts - who produce application frameworks and engage with application engineers to enable application Modernisation to over 100 teams across Citi with a concentration on low latency eTrading platforms in Markets Technology.

Responsibilities

• 90% hands in the Java codebase. We build microservices based event sourcing systems on a low latency in-house framework. Response times in the 10 microsecond to 100 microsecond range.
• Lead integration of functions to meet goals, deploy new products, and enhance processes
• Analyse complex business processes, system processes, and industry standards to define and develop solutions to high level problems
• Provide world class expertise in area of Java low latency development.
• Utilize advanced knowledge of supported main system flows and comprehensive knowledge of multiple areas to achieve technology goals
• Consult with end users to identify system function specifications and incorporate into overall system design
• Influence and negotiate with senior leaders and communicate with external parties
• Happy to work with and educate and support / mentor Junior developers and less experienced senior Java developers.

Skills and Experience

• Demonstrated Subject Matter Expert (SME) in area(s) of Applications Development
• In-depth experience with Algorithmic Trading application development, preferably in low latency environment
• Detailed comprehension and experience with Market Data handling and associated technologies (such as time-series databases KDB)
• Demonstrated leadership, project management, and development skills
• Passion for coding excellent, commercial grade, mission critical Java frameworks based on event sourcing microservices.
• Complete knowledge of modern Java, the JVM, the Linux Operating system, system calls and Kernel.
• Knowledge of TCP and other IP based network protocol technologies including hardware accelerated kernel bypass Solarflare OpenOnload
• Performance assessment and targeted tuning.
• Design and architectural elegance.
• Experience in implementing projects
• Great communicator with high EQ.
• Ability to occasionally produce clear diagrammatic documentation and model key aspects in UML sequence diagrams.
• Relationship and consensus building skills

Nice to have

• Background in Rust, C++

Education / Qualifications

• Bachelor’s degree / University degree or equivalent experience in a similar role.

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

What we’ll provide you

• 27 days annual leave (plus bank holidays)
• A discretionary annual performance related bonus
• Private Medical Care & Life Insurance
• Employee Assistance Program
• Pension Plan
• Paid Parental Leave
• Special discounts for employees, family, and friends
• Access to an array of learning and development resources

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive.