Established Hedge Fund — Quantitative Strategy Engineering
Signal design, portfolio construction and falsification-biased testing, as productionisable artefacts.
A mature fund has the research ideas and the trading experience; what it wants is senior strategy engineering. We would work through the hypothesis with the internal team, then deliver signal design, portfolio construction and rigorous out-of-sample testing — with an explicit falsification bias — as documented artefacts the fund's own engineers can productionise.
The Challenge
The fund doesn't lack conviction or market knowledge; it lacks spare senior quant bandwidth to engineer a promising idea properly. Done in stolen hours, the work risks the usual failure modes — overfitting, optimistic backtests, and portfolio construction bolted on at the end.
The team also wants to keep control. Any external contribution has to fit its conventions, be reviewable line by line, and be something its own engineers can take into production — not a dependency on an outside black box.
The Approach
We would treat the engagement as engineering, not salesmanship: build it carefully, try hard to break it, and hand over something the team can own.
1. Pressure-test the hypothesis
We would work through the fund's hypothesis with its team, sharpening the economic rationale and defining in advance what evidence would count for and against it.
2. Engineer signal and portfolio together
We would design the signal and its portfolio construction as one problem — sizing, risk and turnover considered alongside the raw edge — rather than optimising a signal in isolation.
3. Test to falsify, not to confirm
We would run rigorous out-of-sample testing with an explicit falsification bias, actively looking for the conditions under which the strategy fails and documenting them honestly.
What we'd deliver
Signal design, integrated portfolio construction, and out-of-sample and robustness testing conducted with a falsification bias — delivered as documented, reproducible artefacts that follow the fund's conventions and are ready for its engineers to productionise.
The Likely Outcome
The fund would get a strategy engineered and stress-tested by senior quants, with its weaknesses named rather than hidden — and it would keep full control. Because everything is delivered as reproducible artefacts in the team's own conventions, the fund's engineers could take the work into production without unpicking someone else's black box.