Senior Software Engineer - Python/Java

London Stock Exchange Group; Creve Coeur (MO); Hybrid; USD 140,000 - 180,000; Full time

Benefits offered by this job

Hybrid work options

Healthcare

401(k) Savings Plan

Job summary

London Stock Exchange Group (LSEG) is seeking a Senior Software Engineer for News Engineering to advance real-time news delivery and scalable services. You’ll focus on low-latency Java/Python components, cloud-native architecture, and performance observability in a global, distributed team.

You’ll own architecture decisions, contribute to deployment automation, and help push the boundaries of high-throughput systems in a dynamic environment with hybrid work options.

Qualifications

• Solid experience with Java and Python on Linux and real‑time systems.
• Familiarity with IP-based protocols (TCP/IP, UDP, HTTPS).
• Experience with cloud infrastructure and container orchestration.
• Knowledge of Elasticsearch and related search technologies.

Responsibilities

• Own the design and delivery of critical services from architecture decisions through production support.
• Collaborate in a scrum team to craft solutions and deliver new features.
• Automate deployment, upgrades, and maintenance using modern DevOps practices.
• Participate in a well‑structured on‑call rotation focused on reliability and sustainability.

Skills

Java

Python

Linux

Cloud

Observability

Elasticsearch

Kubernetes

Terraform

GitLab CI/CD

Tools

Elasticsearch

GitLab CI/CD

Kubernetes

Terraform

Job description

Senior Software Engineer — News Engineering @ LSEG

Help us shape the future of real‑time news delivery and join a team powering the heartbeat of global information! LSEG’s News Engineering group is looking for a Senior Software Engineer to help evolve our News platform, delivering enriched breaking news to customers worldwide in sub‑second time. If you're motivated by high-performance systems, real‑world impact, and incorporating modern engineering practices in a dynamic and forward-thinking environment — this is your opportunity.

This role is ideal for engineers who thrive as individual contributors and can lead a scrum team. You’ll deepen your expertise in low‑latency, high-throughput systems and have clear paths to expanding your career to technical leadership, architecture, reliability, or applied ML for news analytics.

As a senior software engineer in the News team at LSEG, you will build and evolve services, primarily in Java and Python, with a strong emphasis on performance, observability, and continuous improvement in a cloud-native environment.

We encourage pragmatic experimentation with new tools, libraries, and approaches when they improve reliability, performance, or developer experience.

Learn how structured data and News industry standards enable fast, reliable news delivery while simplifying problems for customers.

Collaborate in a scrum team, crafting solutions and delivering new features.

Own the design and delivery of critical services, from architecture decisions through to production support, with autonomy to influence technical direction.

Help automate deployment, upgrades, and maintenance using modern DevOps techniques.

Participate in a well‑structured on‑call rotation focused on sustainability, automation, and preventing repeat incidents — not heroics.

What We’re Looking For

• Solid experience with Java and Python on Linux and real‑time systems.
• Practical experience in using IP‑based protocols (TCP/IP, UDP, HTTPS, etc)
• Familiarity with unit testing and test‑driven development.
• Understanding of search technology such as Elasticsearch.
• Experience with cloud infrastructure and container orchestration.
• Strong problem‑solving skills.
• Ability to work independently and communicate clearly.

Bonus Points

• Hands‑on experience with GitLab CI/CD, Kubernetes, or Terraform.
• Experience with GitHub Copilot to aid in the engineering process.
• Knowledge of NewsMLG2 or similar standards and experience implementing a standard format at speed.

Why Join Us?

Impact: Your work helps deliver critical news to millions in real time.

Growth: Learn from expert engineers and expand your skills across cloud, data, and resilient systems.

Culture: We value curiosity over dogma, ownership over handoffs, and pragmatism over perfection. You’ll work in a globally distributed team that supports each other.

Flexibility: Hybrid work options and a balanced work‑life environment.

Career Stage: Senior Associate Compensation/Benefits Information

The anticipated base salary for this position is $0 - $0. Please be aware base salary ranges may vary by geographic location, city and state. In addition to our offered base salary, this role is eligible for our Variable Incentive Compensation plan. Target variable compensation will be commensurate with the posted career stage. Individual salary will be reflective of job related knowledge, skills and equivalent experience.

LSEG roles (excluding internships and part‑time roles of less than 20 hours per week) are typically eligible for inclusion in our LSEG Benefits program, which includes offerings of:

• 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
• etc.

London Stock Exchange Group (LSEG) Information

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you. LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions. Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce. 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. You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering. LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.