Lead Software Engineer, Real Time Index Engineering(Java)

London Stock Exchange Group; Bengaluru; Hybrid; INR 2,800,000 - 4,200,000; Full time

Benefits offered by this job

Healthcare

Retirement plan

Volunteer days

Wellbeing program

Job summary

London Stock Exchange Group seeks a Senior Software Engineer to join the Real Time Framework team, building a low-latency, cloud-native platform for real-time FTSE Russell indices at global scale.

You will lead with architectural clarity, code review, and hands-on delivery, applying event-driven design, data modelling, and AI-enabled tooling while maintaining security and observable infrastructure. This is an individual contributor role based in Bengaluru with hybrid work.

Qualifications

• 9+ years of professional software engineering experience.
• Strong expertise in system design, distributed and event-driven systems, and relational data modelling.
• Solid experience building and operating cloud-native applications on AWS.
• Ability to write and maintain infrastructure as code (Terraform or equivalent).
• Experience designing test strategies at multiple levels of the testing pyramid.
• Proficiency with AI development tooling and a clear understanding of how to use AI to accelerate delivery while maintaining quality.

Responsibilities

• Build low latency, event-driven calculation engines that price indices accurately through market events.
• Operate a cloud-native, horizontally scalable, always-on platform, built as resilient and managed through infrastructure as code.
• Own data foundations for real-time market and reference data, with strong modelling, quality and auditability.
• Deliver secure APIs and streaming, event-driven distribution that make real-time index data easy to consume.
• Help bring advanced and multi-asset methodologies to market (e.g. volatility-controlled, options/futures-based, long-short).
• Modernise the operations experience: replace manual workflows with intuitive tooling and observability.
• Lead through architecture, code review and test strategy, partnering across product, operations and client-facing teams.

Skills

System design

Distributed systems

Event-driven design

Relational data modelling

Debugging distributed systems

Tools

Java

C#

Python

SQL

OpenAPI

Terraform

AWS CLI

GitLab

AI tooling

Job description

Job Summary

We're seeking a Senior Software Engineer to join the team building the Real Time Framework (RTF), our low latency, cloud-native platform for calculating, managing and distributing FTSE Russell's real-time indices at global scale, spanning Equity, Fixed Income and Multi-Asset coverage. Reliability, security, and data quality are non-negotiable as we modernise the platform that underpins our entire real-time franchise.

The ideal candidate is a self-sufficient, technically excellent engineer who can lead through architectural clarity, thorough code review, and hands‑on delivery. You combine strong expertise in low latency, event-driven system design, data modelling, and debugging with genuine passion for how AI tooling is redefining software engineering.

This is an individual contributor role where you will lead through the quality of your thinking and your engineering standards.

AI-First Engineering

This team operates with an AI-first approach. We expect hands‑on experience with AI development tooling: terminal-based agents, AI-augmented IDEs, and automated workflows. You are ultimately accountable for production quality, security, and correctness. This means owning infrastructure review, security validation, system observability, and operational guardrails.

What You'll Do

• Build low latency, event-driven calculation engines that price indices accurately through market events.
• Operate a cloud-native, horizontally scalable, always-on platform, built as resilient and managed through infrastructure as code.
• Own data foundations for real-time market and reference data, with strong modelling, quality and auditability.
• Deliver secure APIs and streaming, event-driven distribution that make real-time index data easy to consume.
• Help bring advanced and multi-asset methodologies to market (e.g. volatility-controlled, options/futures-based, long-short).
• Modernise the operations experience: replace manual workflows with intuitive tooling and observability.
• Lead through architecture, code review and test strategy, partnering across product, operations and client-facing teams.

Tech Stack

Development: Java, C#, Python, SQL, OpenAPI

Cloud: AWS (Lambda, API Gateway, S3, SQS, SNS, Aurora, and others as required)

Databases: Sybase ASE, Sybase IQ, Aurora Postgres

IaC and CI/CD: Terraform, AWS CLI, GitLab

AI Development: Agentic AI tooling (e.g. GitHub Copilot, Claude Code)

Experience

• 9+ years of professional software engineering experience.
• Strong expertise in system design, distributed and event-driven systems, and relational data modelling.
• Solid experience building and operating cloud-native applications on AWS.
• Ability to write and maintain infrastructure as code (Terraform or equivalent).
• Experience designing test strategies at multiple levels of the testing pyramid.
• Proficiency with AI development tooling and a clear understanding of how to use AI to accelerate delivery while maintaining quality.
• Strong debugging skills across distributed systems.
• Basic understanding of financial services or capital markets.
• Effective collaboration and the ability to communicate technical decisions to non-technical audiences.

Location

Bengaluru (Hybrid, 3 days/week in office)

Career Stage

Manager

Company Culture & Values

We foster a culture of engineering excellence, solving real-world problems with purpose and ambition.

We're looking for skilled and passionate engineers to drive the future of modern solutions working with leading AI development tools.

Build with purpose. Start with why. Define the problem before reaching for a solution.

Customer driven. Work backwards from client needs and build products to address real-world problems.

Technically courageous. Go beyond your comfort zone and push boundaries to deliver excellence.

Learn and be curious. Continuously seek feedback, learn in formal and informal settings, actively share knowledge.

Act as owners. Operate as though it is your business. Make thoughtful trade-offs and deliver long-term value.

Lead with data. Validate assumptions, stay close to the details, act decisively.

Build responsibly, deliver incrementally. Look for the small opportunities and milestones to build ambitious solutions.

AI-native by default. Use AI tooling as a force multiplier, frame problems clearly, validate continually, and own the output.

EEO & Diversity Statement

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.

Benefits

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Charity & Sustainability

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.

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.