Senior Software Engineer - Python/Java

USA-St. Louis-795 Office Pkwy💼 Full-time🗓 2026-09-29

Core

Build and evolve low-latency, high-throughput news delivery services in a cloud-native environment, delivering enriched breaking news to customers worldwide in sub-second time.

Role type

Senior individual contributor software engineer (Java/Python)

Builds

Real-time news processing services and platform features

Domain

Financial markets infrastructure / Real-time data streaming

Deliverable

production ML models | product features

Required skills

Java, Python, Linux, TCP/IP/UDP/HTTPS protocols, unit testing, TDD, Elasticsearch, cloud infrastructure, container orchestration

Preferred skills

GitLab CI/CD, Kubernetes, Terraform, GitHub Copilot, NewsMLG2 standards

Responsibilities

Design and deliver critical services from architecture to production support, automate deployment and maintenance using DevOps techniques, participate in on-call rotation focused on sustainability and automation

Seniority

Senior, hands-on IC

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About lseg

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehens