Historical model audit

Forecast Replay

Return to a historical cutoff and reconstruct what 1stSeen could have predicted, using only the evidence it held 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: 179
Excluded: only observed-by evidence: 26
Replay candidates: 153
held out on an exact opening: 153
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 backtest

Why targets could not be scored

Finished Oct 3, 2026 · cutoff 60 days before each target · 890 targets, 0 scored, 890 skipped

no temporal evidence was available by the forecast cutoff689
held-out opening is observed-by only and has no scoreable actual interval201

Counted over every reconstructed cycle the backtest evaluated, which is more than the replay candidates above. Reasons are the backtest’s own words.

Choose a held-out target

Showing 1–20 of 153

Anduril
Electrical Engineer
Held outOct 22, 2026exactexact
Not in the latest backtest run
Anduril
Software Engineer
Held outOct 22, 2026exactexact
Latest backtest held out another posting of this role that year
Anduril
New Grad Software Development in Test
Held outOct 21, 2026exactexact
Not in the latest backtest run
Anduril
New Grad Mechanical Engineer
Held outOct 21, 2026exactexact
Not in the latest backtest run
Anduril
New Grad Test Quality Engineer
Held outOct 21, 2026exactexact
Not in the latest backtest run
Anduril
Field Test Engineer Intern
Held outOct 19, 2026exactexact
Not in the latest backtest run
Anduril
Technical Program Manager Intern
Held outOct 19, 2026exactexact
Not in the latest backtest run
SpaceX
New Grad Engineer Electrical Starshield
Held outOct 19, 2026exactexact
Latest backtest held out another posting of this role that year
Anduril
Flight Test Engineer Intern
Held outOct 14, 2026exactexact
Not in the latest backtest run
Pinterest
Grad Machine Learning Engineer Zurich
Held outOct 14, 2026exactexact
Not in the latest backtest run
Point72
Summer Intern Software Engineer
Held outOct 14, 2026exactexact
Not in the latest backtest run
Pinterest
Grad Machine Learning Engineer Zurich
Held outOct 14, 2026exactexact
Not in the latest backtest run
Akuna Capital
Junior Trader
Held outOct 13, 2026exactexact
Latest backtest held out another posting of this role that year
Anduril
Product Designer Intern
Held outOct 13, 2026exactexact
Not in the latest backtest run
Anduril
Electrical Engineer Intern
Held outOct 9, 2026exactexact
Latest backtest held out another posting of this role that year
Anduril
Quality Engineer
Held outOct 9, 2026exactexact
Not in the latest backtest run
IMC
Machine Learning Engineer Intern Summer
Held outOct 8, 2026exactexact
Not in the latest backtest run
Anduril
Systems Engineer Intern
Held outOct 6, 2026exactexact
Not in the latest backtest run
Squarepoint Capital
Intern Software Developer Singapore
Held outOct 6, 2026exactexact
Not in the latest backtest run
Anduril
Quality Test Engineer Intern
Held outOct 5, 2026exactexact
Not in the latest backtest run

Choose the historical vantage point

Anduril · Electrical Engineer · held out Oct 22, 2026 exact

Forecast cutoff

Why targets could not be scored

Finished Oct 3, 2026 · cutoff 60 days before each target · 890 targets, 0 scored, 890 skipped

no temporal evidence was available by the forecast cutoff689

held-out opening is observed-by only and has no scoreable actual interval201

Counted over every reconstructed cycle the backtest evaluated, which is more than the replay candidates above. Reasons are the backtest’s own words.