Historical model audit

Forecast Replay

Return to a historical cutoff and reconstruct what 1stSeen could have predicted—using only evidence the system actually knew by then. Every run is computed by the worker’s leak-safe backtest when you ask for it.

Future evidence is sealed

The held-out opening and every post-cutoff observation are scoring data only. They cannot enter the forecasting component.

What can be replayed

Held-out targets with a defensible actual interval

Roles with two or more recorded openings: 22
Excluded: only observed_by evidence: 0
Replay candidates: 22
held out on an exact opening: 22
held out on a bounded opening: 0

An archive capture proves a role was visible by then, not that it opened then, so an observed_by opening is never scored as ground truth.

Latest persisted backtest

Why targets could not be scored

No backtest has been persisted yet. Run firstseen backtest to record which targets the leak-safe evaluator can score and why the rest are skipped.

Choose a held-out target

Showing 1–20 of 22

Tower Research Capital
Quantitative Developer Intern
Held outAug 18, 2026exactexact
No backtest persisted
Imc
Software Engineer Intern
Held outAug 12, 2026exactexact
No backtest persisted
DRW
Quantitative Trading Analyst
Held outAug 7, 2026exactexact
No backtest persisted
Imc
Graduate Software Engineer Start Date In
Held outJul 31, 2026exactexact
No backtest persisted
Optiver
Quantitative Trading Intern Taiwan
Held outJul 21, 2026exactexact
No backtest persisted
VIRTU Financial Inc.
Intern Software Engineer
Held outJul 20, 2026exactexact
No backtest persisted
VIRTU Financial Inc.
Intern Quantitative Researcher Master Or Phd
Held outJul 14, 2026exactexact
No backtest persisted
DRW
Quantitative Researcher
Held outJul 13, 2026exactexact
No backtest persisted
Imc
Graduate Software Engineer
Held outJul 1, 2026exactexact
No backtest persisted
Optiver
Quantitative Intern Summer
Held outJul 1, 2026exactexact
No backtest persisted
VIRTU Financial Inc.
Intern Quantitative Trading
Held outJul 1, 2026exactexact
No backtest persisted
Palantir
Forward Deployed Software Engineer New Grad Us Government
Held outJun 15, 2026exactexact
No backtest persisted
Squarepoint Capital
Intern Software Developer Singapore
Held outMay 7, 2026exactexact
No backtest persisted
Palantir
Forward Deployed Software Engineer Intern Us Government
Held outMar 10, 2026exactexact
No backtest persisted
Palantir
Product Designer Intern Us Government
Held outAug 12, 2025exactexact
No backtest persisted
Palantir
Forward Deployed Software Engineer Intern Uk Government
Held outAug 1, 2025exactexact
No backtest persisted
Palantir
Forward Deployed Software Engineer New Grad Commercial
Held outAug 1, 2025exactexact
No backtest persisted
Palantir
Software Engineer New Grad
Held outJun 19, 2025exactexact
No backtest persisted
Palantir
Product Designer New Grad
Held outNov 21, 2024exactexact
No backtest persisted
Palantir
Software Engineer Intern Defense Tech
Held outAug 5, 2024exactexact
No backtest persisted

Choose the historical vantage point

Tower Research Capital · Quantitative Developer Intern · held out Aug 18, 2026 exact

Forecast cutoff