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About the Role

This role sits alongside the Chief Investment Officer on a new strategy being built on the Marble Bar platform, drawing on the firm's long operating history, infrastructure and institutional relationships. The successful candidate will help shape how the strategy researches, monitors and records its decisions from day one, working in close daily contact with the CIO. The team is small, approximately ten people in total across investment, technology and operations, so the role carries real impact from day one and direct access to senior decision-makers.

Responsibilities

Form and communicate a clear view on what is driving global equity markets, macro, policy, rates, flows, positioning and sentiment, and how that view is evolving.
Translate market drivers into portfolio implications: which exposures are helped, which are threatened, and where the book is carrying risk it is not being paid for.
Assess portfolio positioning against the prevailing regime, and identify where the two are misaligned.
Integrate market analysis with portfolio analysis, so that the daily read on markets connects directly to the drivers of performance, risk and positioning.
Anticipate the events, data and market dynamics most likely to matter to the portfolio over the coming days and weeks.
Own a structured suite of reports across the trading day. These are analytical products, not summaries. Each is expected to carry a view and a conclusion.
Progressively automate the production of reports, reducing manual effort while improving consistency.
Monitor active positions against their original investment thesis.
Track defined game plans, catalysts, holding periods and expected time horizons.
Identify thesis drift, time decay and changing risk/reward dynamics.
Generate timely reminders, observations and recommendations where positions require reassessment.
Support ongoing exposure analysis and position monitoring across both long and short books.
Produce bespoke research on individual companies at the CIO's request, structured for efficient decision-making.
Assess the relevance, significance and likely market impact of new information as it emerges.
Maintain research files and update investment cases as the evidence changes.
Apply the firm's scoring framework consistently across names, so that conclusions are comparable across the portfolio and over time.
Build and maintain forward-looking catalyst calendars covering earnings, corporate actions, capital markets activity, regulatory events, product launches, investor presentations, macroeconomic releases and industry-specific events.
Highlight upcoming events likely to influence portfolio positions or generate investment opportunities.
Maintain a standing view of what is scheduled, what is likely to matter, and what the portfolio's exposure to it is.
Assist in the design, development and continual refinement of proprietary stock-screening tools.
Run and maintain screens aligned with the firm's quantitative and discretionary investment process.
Support idea generation through quantitative analysis, AI-assisted research and systematic screening.
Help source, rank and prioritise investment opportunities using defined criteria.
Design standardised output formats for recurring research and reporting, so that every company, every day and every event is assessed against the same structure.
Build and maintain AI-assisted workflows that produce these outputs consistently, turning manual analysis into repeatable process without losing analytical judgement.
Progressively automate the daily reporting suite, with an explicit objective of reducing manual production time over the first twelve months.
Apply structured prompting, templating and tool integration to compress research time on new names and events.
Own the quality of what the systems produce: knowing where AI output is reliable, where it is not, and building the checks that catch the difference.
Provide analytical and operational support across all aspects of the investment process as required.
Ensure the CIO's time, information and analysis are organised, prioritised and accessible.
Take responsibility for ad hoc projects end to end, from definition through to delivered output.

Requirements

5+ years in an institutional markets environment (buy-side, sell-side, or a comparable seat with genuine daily market exposure).
A demonstrable record of forming views on markets and being accountable for them, rather than reporting the views of others.
Fluency in the drivers of equity markets: macro and policy, rates and currencies, sector and factor dynamics, flows, positioning and sentiment.
The ability to connect market-level developments to portfolio-level consequences, and to explain that linkage concisely to a decision-maker under time pressure.
Practical understanding of long/short portfolio construction, gross and net exposure, factor and sector risk, attribution and the distinction between alpha and beta.
Sound knowledge of company fundamentals and the drivers of share prices, with the confidence to hold a view on an individual name.
A systems-minded approach to research: naturally reduces a repeated task to a defined format, then builds the process that produces it.
Fluency with modern AI tools (Claude, ChatGPT and equivalents) as working instruments rather than novelties, able to design structured, repeatable workflows rather than one-off prompts.
Comfort working with data at volume, synthesising large and unstructured information flow into standardised, decision-ready output.
Exceptional written and verbal communication, able to compress a complex market picture into something a CIO can act on.
Sound judgement, intellectual honesty, and the discipline to deliver to a fixed daily schedule without loss of accuracy.
This position requires you to be based in our London office from Monday to Friday.
The working day begins at 07:30h London time, ahead of the European open.

Skills

Market Analysis
Portfolio Positioning
Investment Reporting
Portfolio Management Support
Research & Intelligence
Market Intelligence
Catalyst Monitoring
Screening & Idea Generation
Research Systems & AI
AI tools (Claude, ChatGPT and equivalents)
Data Synthesis
Communication
Judgement
Intellectual Honesty
Discipline

Location

London

Work Type

Onsite

Experience Level

Senior
5+ years

About the Company

Founded in 2002 as a pioneering hedge fund, Marble Bar has built its reputation on intellectual discipline, research, data-driven insight and a deep understanding of investment behaviours.
Since its founding, the firm has helped portfolio managers identify repeatable processes within their investment practice and sustain their edge in constantly evolving markets.
For over twenty years, we have successfully identified exceptional managers and created environments to help them generate durable returns.