# Senior Technical Lead - Real Time Platform

**Company**: London Stock Exchange Group (LSEG)
**Location**: London
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Finance

**Apply**: https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/London-United-Kingdom/Senior-Technical-Lead---Real-Time-Platform_R0120636?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_de69908a-979

## Description

LSEG is seeking a Senior Technical Lead to help modernise and scale its real-time platform that powers global index calculation across equity, fixed income, and multi-asset markets.

The successful candidate will be a hands-on technical leader responsible for designing resilient, event-driven systems, shaping technical direction, and raising standards across the team.

Key responsibilities include:

- Designing and building real-time, event-driven systems that calculate and distribute index data with low latency and high reliability.

- Owning platform architecture and engineering quality, leading through hands-on delivery, code review, and clear technical direction.

- Scaling and operating a cloud-native platform on AWS, ensuring resilience, observability, and performance under real market conditions.

- Defining and evolving data models and pipelines for market and reference data, with a strong focus on accuracy, auditability, and control.

- Driving engineering standards and modernisation, using AI-assisted tooling and automation to improve delivery speed without compromising quality.

The tech stack includes Java, C#, Python, SQL, OpenAPI, AWS (Lambda, API Gateway, S3, SQS, SNS, Aurora), Sybase ASE, Sybase IQ, Aurora Postgres, Terraform, AWS CLI, GitLab, and Agentic AI tooling.

The ideal candidate will have a strong software engineering background, experience designing and building distributed, event-driven systems, and proven ability to own system design and architecture.

LSEG offers a culture of connecting, creating opportunity, and delivering excellence, with opportunities for personal growth and development.

## Skills

### Required
- Java
- C#
- Python
- SQL
- OpenAPI
- AWS
- Sybase ASE
- Sybase IQ
- Aurora Postgres
- Terraform
- AWS CLI
- GitLab
- Agentic AI tooling

### Nice to have
- Experience working on low-latency or real-time systems
- Exposure to financial services, market data, or index products
- Practical use of AI-assisted development tooling

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Source: [Apply at lseg.wd3.myworkdayjobs.com](https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/London-United-Kingdom/Senior-Technical-Lead---Real-Time-Platform_R0120636?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)