Tech Lead - Low-Latency FX Engineering

LSEG; New York (NY); On-site; USD 147,500 - 245,900; Full time

Benefits offered by this job

Annual Wellness Allowance

Paid time-off

401(k) Savings Plan and Company Match

Medical, Dental, Vision benefits

Job summary

LSEG is seeking a Tech Lead (Java) in New York, New York to oversee the design and development of low-latency trading platforms. The role requires not only technical skills but also leadership in mentoring engineers and defining system architecture.

The ideal candidate will possess in-depth knowledge of Java, concurrency, and performance optimization along with experience in agile practices. Compensation includes a competitive salary of $147,500 – $245,900, annual bonus potential, and comprehensive benefits.

Qualifications

• Strong hands-on expertise in Java development.
• Proven experience as a technical lead or senior engineer.
• Deep understanding of data structures and algorithms.
• Expertise in concurrency and performance optimization.

Responsibilities

• Lead design and development of low-latency trading systems.
• Drive technical delivery from design to production.
• Mentor engineers and foster best coding practices.
• Define and deliver scalable solutions for FX trading.

Skills

Java development

Technical leadership

Data structures and algorithms

Concurrency and multithreading

System design principles

Performance optimization

Agile environments

Tools

Profiling tools

Cloud platforms

SQL databases

NoSQL databases

Job description

SEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open‑access partners committed to delivering the services our customers expect. With deep expertise and a global footprint across financial markets, we enable businesses and economies worldwide to fund innovation, manage risk, and create jobs. For over 300 years, we’ve supported financial stability and growth across global communities.

We are looking for a hands‑on Tech Lead (Java) to drive the design, development, and delivery of large‑scale, low‑latency trading platforms within our FX engineering group. This role combines deep technical contribution with technical leadership, guiding engineers and shaping the architecture and direction of critical trading systems.

You will remain close to the code while also leading projects end‑to‑end—partnering with architects, influencing engineering standards, and mentoring team members to deliver high‑performance, highly reliable solutions.

Key Responsibilities

• Lead the design and development of low‑latency trading systems, while remaining an active, hands‑on contributor to the codebase
• Own and drive technical delivery of projects, from design through implementation, testing, and production rollout
• Provide technical leadership and mentorship to engineers, fostering best practices in coding, performance, and system design
• Partner closely with architects, product teams, and other engineering groups to define and deliver scalable solutions for FX trading
• Contribute to and guide the evolution of system architecture, ensuring performance, scalability, and resilience
• Design, build, and support high‑performance trading venues and services
• Lead efforts to improve system observability, reliability, and operational excellence
• Develop automation to detect, prevent, and resolve production issues, minimizing latency and downtime
• Drive continuous improvements across performance optimization, cost efficiency, security, and developer experience
• Champion agile and DevOps practices, promoting CI/CD, automated testing, and infrastructure as code

Required Skills & Experience

• Strong hands‑on expertise in Java development, with a passion for writing clean, efficient, production‑grade code
• Proven experience operating as a technical lead or senior engineer influencing design and delivery
• Deep understanding of data structures, algorithms, and system design principles
• Expertise in concurrency, multithreading, and performance optimization
• Strong knowledge of low‑latency system design and memory management
• Experience with profiling, benchmarking, and performance tuning tools
• Familiarity with network protocols (TCP, UDP, HTTP) and techniques for optimizing network communication
• Proven track record of owning and delivering complex, business‑critical systems
• Experience working in agile environments with modern engineering practices
• Exposure to DevOps practices, including automation of testing, deployment, and infrastructure
• Strong problem‑solving skills with the ability to investigate and resolve complex, cross‑system issues
• Ability to work effectively in a globally distributed team, balancing leadership and hands‑on delivery

Desired Skills

• Experience with cloud platforms and cloud‑native architecture
• Knowledge of SQL and NoSQL databases
• Experience mentoring or leading engineers in a technical capacity
• Strong passion for technology and continuous learning
• Excellent communication and stakeholder management skills

Career Stage

Manager

Compensation & Benefits

LSEG is committed to offering competitive compensation and benefits. The anticipated base salary for this position is $147,500 – $245,900. In addition to base salary, this role is eligible for an Annual Incentive Plan (AIP/ “bonus plan”) and is typically eligible for LSEG benefits, which include Annual Wellness Allowance, Paid time‑off, Medical, Dental, Vision, Flex Spending & Health Savings Options, Prescription Drug Plan, 401(k) Savings Plan and Company Match, basic life insurance, disability benefits, emergency backup dependent care, adoption assistance, commuter assistance, and more.

Equal Opportunity Employer

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.