Market Data Analyst

ISS; City of Westminster; On-site; GBP 40,000 - 60,000; Full time

Job summary

A leading financial market solution provider in London seeks a Market Data Analyst to evaluate and onboard cross-asset data feeds. The ideal candidate will have a degree in Finance or Mathematics, with at least 3 years of experience in data management. Responsibilities include expanding global market data coverage and improving analytics across asset classes. This position offers a chance to work with cutting-edge products in a dynamic environment.

Qualifications

• Minimum 3 years' experience in data management.
• Proven experience with financial market data.
• Ability to manipulate and analyze large datasets.

Responsibilities

• Onboarding new market venues for data coverage.
• Managing vendor relationships for feed changes.
• Undertaking analyses of data and reporting.

Skills

Data management and analysis

Communication skills

Analytical skills

Attention to detail

Education

Degree in Finance, Mathematics or similar

Tools

Microsoft Excel

PowerBI

Tableau

SQL

Python

Job description

ISS STOXX LiquidMetrix are hiring for a Market Data Analyst to join the team in London. In this role, you will help evaluate and onboard cross-asset class data feeds for our Venue Analytics, Transaction Cost Analysis (TCA) and Trade Surveillance products. As a specialist in market data, you will work closely with expert Product Data and Development teams to deliver project Proof of Concepts (POCs) that help guide project roadmaps and enrich the Product offering for our clients - Investment banks, Brokers, Wealth / Asset Managers and Exchanges. This is a fantastic opportunity to work closely across multiple teams (including c-suite), develop expertise in multiple facets of market data and venue & execution analytics and work with cutting edge products in a fast-paced environment.

Key Responsibilities

Market Data Expansion Develop global market data and referential data coverage:

• Working with teams to onboard new market venues to the platform, including Fixed Income, Derivatives, Equities/ETFs, FX and Crypto
• Maintenance and enrichment of an extensive reference database, covering global cross-asset market metadata, instrument listings and company fundamentals
• Help evolve data QA procedures to deliver high-quality, robust information to downstream applications
• Work with the Application Support team to recover from data delivery and processing issues

Feed Management

• Liaise with vendor network to help identify mandatory feed changes and the required implementation plan for existing feeds
• Research upcoming market microstructure changes and help produce models on how the business can benefit
• Undertake analyses of data and construct accurate and insightful reportingProvide clear lines of communication to stakeholders on feed projects and product development

Analytics & Support

• Understand and help develop deeper analytics across asset classes, including differing approaches to TCA and instrument-level performance measurements
• Respond to client requests for new market coverage

Ideal Candidate

The ideal candidate will be highly motivated, with the ability to work effectively as part of a team or individually. Experienced in data management and analysis, they will be calm under pressure and have excellent prioritisation skills:

• Minimum 3 years' experience
• Educated to degree level in Finance, Mathematics or similar Quantitative discipline
• Proven experience working with financial market data and/or referential data and an interest in further developing a career in Finance
• Ability to work with, manipulate and analyse large datasets (such as Level 2 and Level 3 orderbook data)
• Highly proficient with Microsoft Excel, including macros, pivot tables, functions & charts. Experience with analytical tools, such as PowerBI, Tableau, Jupyter etc, as well as Rest APIs is desirable.
• Scripting: SQL (intermediate as a minimum), Python. Experience in object-oriented programming a bonus
• Excellent analytical skills and an ability to understand technically complex problems
• Good communication and written skills, and the ability to build strong professional relationships at all levels, with both internal and external parties
• Proven ability to work well under pressure and adapt to changing priorities and complex challenges
• An understanding of data modelling techniques (both supervised and unsupervised), applying goodness-of-fit measures and AI highly desirable

At ISS STOXX, our people are our driving force. We are committed to building a culture that values diverse skills, perspectives, and experiences. We hire the best talent in our industry and empower them with the resources, support, and opportunities to grow professionally and personally.

Together, we foster an environment that fuels creativity, drives innovation, and shapes our future success. Let us empower, collaborate, and inspire. Let us be #BrilliantTogether.

About ISS STOXX

ISS STOXX GmbH is a leading provider of research and technology solutions for the financial market. Established in 1985, we offer top‑notch benchmark and custom indices globally, helping clients identify investment opportunities and manage portfolio risks. Our services cover corporate governance, sustainability, cyber risk, and fund intelligence. Majority‑owned by Deutsche Börse Group, ISS STOXX has over 3,400 professionals in 33 locations worldwide, serving around 6,400 clients, including institutional investors and companies focused on ESG, cyber, and governance risk. Clients trust our expertise to make informed decisions for their stakeholders' benefit. Specifically, ISS LiquidMetrix provides a wide range of offerings, including Transaction Cost Analysis (TCA), execution quality, market abuse, and pre‑trade analysis services across every public order and trade executed on European venues. Clients include sell‑sides, buy‑sides, exchanges, and regulators that require actionable analysis, reports, compliance tools, and global coverage.