What does the Engineering hiring burst signal mean?

The Engineering hiring burst signal indicates a specific pattern of engineering acceleration. Full classification logic and the four-signal taxonomy are documented at /methodology and /signals.

Where can I find Submitty's historical signal data across periods?

The startup hub at /startup/submitty consolidates every period of historical signal data for Submitty, including commit-velocity change, contributor growth, and signal classification. The free /api/signals.json endpoint exposes the same data for programmatic access.

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Q4 2025 · Historical Snapshot

Submitty — Q4 2025 Engineering Signal

Submitty Homework Submission Server

Signal — Q4 2025

In Q4 2025, Submitty showed -12% commit velocity change with 100 active contributors (+214% growth). Signal type: Engineering hiring burst. 1 new repository created in the 30 days preceding this period. Ranked #25 of 40 in EdTech for Q4 2025.

Metrics — Q4 2025

Commit Velocity (14d)

Velocity Change

-12%

Contributors

100

+214% growth

New Repos (30d)

Context

Sector: EdTech (full Q4 2025 ranking)

Stage at time of snapshot: Growth

Geography: US

Signal classification: Engineering hiring burst — learn what this signal means

See Submitty's current signal

This page shows a historical snapshot. For the most recent data, view the full profile.

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21–47 days
Signal Lead Time (median 31d)

$80M+
Rounds Tracked

90 sec
Per Scan

5,000+
Founders Tracked

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