London, GB · Founded 2007 · 5000+ staff
LSEG is a global provider of financial markets data and infrastructure.
Roles based in: Bucharest, Bucharest-Iuliu Maniu Boulevard, CapitaLand, Cluj, Cluj-Napoca, Gdynia
Builds in: FinTech · Platform · Infrastructure · Enterprise · AI/ML
Seniority: 5 junior · 58 senior · 12 principal · 21 lead
Publishes salary on 2 of 112 ads · Hiring engineering roles here since April 2026
Curated from live London Stock Exchange Group postings. Click any role for the full brief.
Principal Cloud Data Architect at London Stock Exchange Group focusing on Digital Identity & Fraud Engineering.
Build and scale enterprise AI Productivity Platforms using Python/TypeScript, LLMs (ChatGPT, Claude), RAG pipelines, and microservices.
Develop cloud-native web platform functionality using Angular/Node.js for London Stock Exchange Group.
Lead Software Engineer defining technical direction for global financial platforms using C#, Azure, and distributed systems.
Develop financial services on blockchain using Next.js/TypeScript for tokenization.
Lead Cloud DBA managing highly available Oracle/MySQL/PostgreSQL systems for LSEG's critical financial infrastructure.
Build internal observability platform using Cribl, ClickHouse, OpenTelemetry, Grafana for hundreds of engineering teams.
Design and automate network infrastructure testing for global financial platforms using Python and CI/CD.
Build and maintain the internal observability platform for LSEG using metrics, logs, traces, and GitOps.
Design high-performance customer-facing applications for the LSEG Workspace platform using JavaScript/TypeScript.
Design and evolve the enterprise API Management Platform for LSEG's global financial markets infrastructure.
Design end-to-end software solutions for Digital Operations using microservices, cloud, and full-stack technologies.
Develop Java-based ETL solutions for the Commodities Content Onboarding team at London Stock Exchange Group in Gdynia.
Architect the enterprise AI ecosystem for London Stock Exchange Group by building agentic platforms at scale.
Design and build agentic AI platforms like LSEG AI Assist using Python, LLMs, and Kubernetes at London Stock Exchange Group.
Define and implement evaluation frameworks for agentic AI platforms at London Stock Exchange Group (LSEG).
Develop high-performance Office Add-ins using C++ and Node.js for financial infrastructure.
Design and develop real-time financial content SDK and server infrastructure using C++ at London Stock Exchange Group.
Lead the technical design and development of enterprise-grade full-stack applications for London Stock Exchange Group in Bucharest.
Build and operate Kubernetes platforms for LSEG's real-time financial market applications.
Build scalable AI solutions for London Stock Exchange Group, driving financial stability and innovation.
Build and maintain scalable Azure data platforms for LSEG, a global financial markets leader.
Build and support Azure cloud platform for LSEG's financial products.
Build a real-time news platform for global financial professionals at LSEG.
Build AI/GenAI systems for global financial institutions at LSEG.
Lead a 24/7 security team managing privileged Active Directory accounts for London Stock Exchange Group.
Build and automate cloud infrastructure for financial risk products at London Stock Exchange Group.
Build and operate a real-time platform for global index calculation at LSEG.
Build cloud-native data solutions for LSEG's Post Trade Division on AWS & Snowflake.
Build LSEG's flagship financial platform, Page Express, for global financial markets.
Build and improve AWS infrastructure for SwapAgent, an LSEG service simplifying derivatives processing.
Lead engineering for LSEG's CDSClear platform, building trade management and risk systems for global financial markets.
Build real-time SDKs and server infrastructure for global financial markets.
Secure global financial infrastructure by managing and automating security systems for LSEG.
Build AI-powered regulatory news services for global financial markets.
Build and test complex financial software for London Stock Exchange Group.
Lead reliability engineering for LSEG's Markets business, enhancing stability and performance.
Build advanced container platforms for global financial markets infrastructure.
Build back-end solutions for the Regulatory News Service at London Stock Exchange Group.
Build next-gen data platform for global financial indices using Python, Spark, and AWS.
Build resilient, cloud-ready platforms for London Stock Exchange Group's mission-critical systems.
Automate cloud infrastructure for London Stock Exchange Group.
Lead data engineers to build and scale LSEG's data ecosystem.
Build index/benchmark product capabilities for LSEG's WMX platform.
Build LSEG's leading Risk Screening platform, focusing on AWS and Java for global financial markets.
Build key LSEG strategic web services on AWS cloud, enhancing front-end and back-end functionality.
Build and support network automation platforms for London Stock Exchange Group.
Drive comprehensive data and technology strategy for LSEG's Finance operations.
Direct Site Reliability Engineering for mission-critical financial systems at LSEG's FTSE Russell.
Drive cloud-native infrastructure innovation for LSEG's financial software products.
Drive GCP infrastructure design and implementation for LSEG's financial market applications.
Drive risk intelligence and compliance screening for financial markets at LSEG World-Check One.
Architect cloud data solutions for Risk Intelligence and Fraud products at LSEG.
Drive mission-critical regulatory news delivery for global financial markets at LSEG.
Build and maintain CI/CD pipelines for cloud deployments at a global financial markets leader.
Drive reliability and scalability for high-performance FX trading platforms at LSEG.
Build and operate LSEG Workspace cloud platform for global financial professionals.
Drive real-time financial data distribution engineering at LSEG in Bucharest.
Lead AI engineering on LLM-powered financial infrastructure at LSEG.
Run offensive security testing and vulnerability programmes at LSEG.
Engineer IAM/PAM solutions to protect financial markets from cyber threats.
Secure privileged access and Unix/Linux infrastructure across LSEG's global estate.
Develop Real-Time financial content features for London Stock Exchange Group.
Build and design real-time networks for LSEG's popular financial products.
Lead quantitative AI and LLM engineering for financial analytics at LSEG.
Lead complex financial markets infrastructure software delivery at LCH SA.
Build Angular-powered financial infrastructure web platforms at LSEG.
Build real-time data distribution systems for global capital markets at LSEG.
Build real-time financial data libraries in Java at LSEG.
Build and ship the Real-Time financial data SDK in C++ at LSEG.
Ship Real-Time SDK features powering financial data infrastructure at LSEG.
Build and automate production cloud infrastructure for financial markets at LSEG.
Engineer high-performance C++ and Node.js components for financial infrastructure at LSEG.
Drive test automation and QA for global financial markets infrastructure at LSEG.
Build and automate cloud infrastructure for financial market clearing services at LSEG.
Design and build campus networks and services for LSEG's popular financial products.
Test complex Capital Markets software for London Stock Exchange Group.
Build data onboarding solutions for LSEG's flagship financial products.
Architect AI-native financial data platforms for FTSE Russell, a global leader in financial benchmarks.
Build and strengthen reliability for London Stock Exchange Group's Risk Intelligence division.
Build and operate reliable financial platforms for London Stock Exchange Group.
Build and operate AWS infrastructure for LSEG's risk management applications, migrating to cloud.
Drive test automation for Capital Markets equities products at LSEG.
Lead ML architecture and model governance for LSEG's matching platform.
Build and test quantitative models for financial markets at London Stock Exchange Group.
Lead SRE operations for critical CDS clearing infrastructure at LCH SA.
Build cloud-native Post Trade data infrastructure at LSEG in Bucharest.
Lead QA automation for financial risk intelligence products at LSEG.
Drive test automation and quality engineering for global financial infrastructure at LSEG.
Build automated QA pipelines for CDSClear's clearing platform at LSEG.
Build automated test infrastructure for CDSClear's clearing platform at LSEG.
Engineer real-time financial data distribution systems at LSEG in Bucharest.
Build network automation microservices for global financial infrastructure at LSEG.
Lead Kubernetes cloud platform engineering for global financial markets at LSEG.
Own global network reliability and automation for LSEG's financial markets infrastructure.
Architect AI-native modular enterprise systems for global financial infrastructure at LSEG.
Lead engineering teams for World-Check One risk intelligence platform at LSEG.
Build robust GCP cloud infrastructure for LSEG's global financial data services.
Build secure, scalable AI-enabled digital products for London Stock Exchange Group.
Engineer low-latency real-time data distribution infrastructure at LSEG.
Lead C++ engineers on Elektron real-time market data systems at LSEG.
Build hybrid Kubernetes container platforms for real-time market data at LSEG.
Build next-gen cloud-native container platforms for global market data services at LSEG.
Build and maintain cloud-native infrastructure for global financial risk intelligence products at LSEG.
Build and operate cloud-native platforms for global Risk Intelligence products at LSEG.
Build AI-powered financial solutions for London Stock Exchange Group.
Build AI-driven analytic applications for regulated FX trading venues at London Stock Exchange Group.
Build and design real-time networks for LSEG's popular financial products.
Build market-leading real-time data distribution systems for the London Stock Exchange Group.
Lead quality initiatives for financial market infrastructure, empowering developers and improving testing practices.
Build and operate critical shared services for London Stock Exchange Group.
Build and optimize Azure Data Factory pipelines for capital markets data at LSEG.
No longer open on London Stock Exchange Group's site. Kept for reference — saved archived roles stay in your dashboard.
Lead quality initiatives for financial market infrastructure, empowering developers and improving testing practices.
Build SaaS financial platform features for LSEG Workspace users, focusing on customer experience.
Architect solutions for FTSE Russell Index platform modernization and risk remediation at London Stock Exchange Group.