Senior Full Stack Engineer (Index Distribution Engineering)

London Stock Exchange; Greater London; On-site; GBP 110,000 - 150,000; Full time

Job summary

London Stock Exchange is seeking a hands‑on Senior Engineer to design and scale the systems that power next‑generation data distribution to the global financial community. You will own system design, data modelling, and engineering standards for a critical client‑facing platform.

Responsibilities include building scalable data distribution via APIs and cloud platforms, developing secure APIs, and driving production‑grade quality through rigorous testing and reviews.

Qualifications

• Experience with cloud-native platforms (AWS or similar).
• Strong focus on code quality, testing, and technical standards.
• Experience building distributed backend systems and APIs.
• Ability to own system design and data modelling.
• Solid understanding of relational databases and data‑intensive systems.
• Experience with data distribution, APIs, or client-facing platforms.
• Exposure to AI-assisted engineering tooling.
• Experience with financial or market data systems.

Responsibilities

• Design scalable data distribution systems delivering data via APIs, cloud platforms, and client‑facing services.
• Own system architecture and data modelling to ensure performance, reliability and maintainability at scale.
• Develop secure, well‑designed APIs and data services for external consumers.
• Drive engineering quality through testing, review, and standards to enable production‑grade delivery.
• Partner with product and stakeholders to translate complex requirements into robust technical solutions.
• Mentor as a hands‑on senior engineer and maintain high engineering standards as an individual contributor.

Skills

Cloud AWS

Code quality

Distributed backend

System design

Data modelling

Relational DBs

APIs

AI tooling

Market data

Job description

• FTSE Russell (LSEG) is building next-generation distribution capabilities that deliver index data to the global financial community — across APIs, cloud platforms, and modern data delivery channels
• We’re looking for a hands‑on Senior Engineer to design and scale the systems that power this distribution — enabling reliable, secure, and high-performance data delivery to institutional clients worldwide
• This is an individual contributor role with strong technical leadership expectations, where you’ll own system design, data modelling, and engineering standards across a critical client‑facing platform
• Design and build scalable data distribution systems, delivering data via APIs, cloud platforms, and client‑facing services
• Own system architecture and data modelling, ensuring performance, reliability, and maintainability at scale
• Develop secure, well-designed APIs and data services for external consumers
• Drive engineering quality through testing, review, and standards, ensuring production‑grade delivery
• Partner closely with product and stakeholders to translate complex requirements into robust technical solutions

Requirements

• Experience working with cloud-native platforms (AWS or similar)
• Ability to lead through code quality, testing, and technical standards
• Strong experience building distributed backend systems and APIs
• Proven ability to own system design and data modelling
• Strong understanding of relational databases and data-intensive systems
• Experience with data distribution, APIs, or client‑facing platforms
• Experience with AI‑assisted engineering tooling
• Exposure to financial data or market data systems