The Signal Engine

Stop interrupting. Start arriving on time.

Every placement and every client starts the same way: someone just became reachable. RecruitersOS watches the market 24/7 and tells you the exact moment a company needs to hire or a candidate is ready to move, so you arrive first, with a reason.

โœ• Interruption-based

"Hi, are you hiring?"

Send 1,000 messages โ†’ hope 10 respond โ†’ hope 1 is interested.

โœ“ Signal-based

"I noticed you've posted three engineering leadership roles in 14 days while expanding into healthcare. Most teams hit capacity during that transition, curious how you're handling talent acquisition."

Triggered by: 3 new job posts + territory expansion signal.

Signalโ†’Contextโ†’Relevanceโ†’Response
The full catalog

41 signals. 6 categories. One work-list.

This is everything the engine watches, every detector in the framework, grouped exactly the way it ranks them. Each one is a reason to reach out, and the raw material for a relevant first line.

BD OS drives the client motion Recruiting OS drives the candidate motion · real-timedailyongoing how fast it cools · base strength
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Capital & growth

BD OS6 signals
Funding roundongoing

New capital means new headcount and a budget to fill it. Be first in the inbox the week the round is announced.

IPO / S-1 filingongoing

Public-company readiness triggers aggressive hiring across finance, legal, and engineering.

Acquisitionongoing

Acquisitions create integration hiring and shake loose retention-risk talent at the same time.

Mergerongoing

Mergers reshuffle the org chart, creating redundancy on one side and new roles on the other.

Revenue milestonedaily

An ARR or earnings beat signals capacity expansion and budget to grow the team.

Grant / contract winongoing

A government grant or large contract must be staffed to deliver, often on a deadline.

๐Ÿ“ˆ

Hiring intent

BD OS7 signals
Hiring surgedaily

A spike in posting cadence above the company's baseline means a team stretched past capacity.

Role reposteddaily

A reposted role means the company is struggling to fill it, the warmest possible moment to offer help.

New job postingdaily

The most direct signal there is: a role is open right now and someone owns filling it.

Long-open roledaily

A role open beyond the typical fill window signals pipeline pain you can solve.

Headcount growthongoing

An observed jump in employee count confirms the company is actively scaling its team.

Careers page launchedongoing

A brand-new careers site or jobs subdomain means a company formalizing its hiring function.

ATS adoptedongoing

Adopting or switching an applicant tracking system means building a repeatable hiring engine.

๐Ÿ‘”

Leadership & org change

BD OS4 signals
New execongoing

A new VP or C-level leader rebuilds their org within ~90 days and chooses new vendors.

New function leadongoing

A new head of Eng, Sales, or Marketing almost always kicks off a team build-out.

Exec departureongoing

A departing exec leaves a backfill to run and a team that may follow them out the door.

Board changeongoing

A new board member or chair signals a strategic shift that reshapes hiring priorities.

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Footprint & strategy

BD OS8 signals
Expansionongoing

A new office or relocation creates a greenfield local team that has to be built from scratch.

New marketongoing

Entering a new country, region, or segment means hiring people who know that market.

Tech adoptionongoing

Adopting a new technology creates demand for specialists who know it.

Product launchdaily

A new product line needs a team to build it and a team to sell it.

Intent surgedaily

A research / intent spike on hiring-adjacent topics flags a company about to act.

Partnershipdaily

A major partnership or channel deal often requires staffing up to deliver on it.

Traffic surgedaily

A demand spike implies scale pressure that usually precedes hiring.

Review velocitydaily

A spike in employer reviews is an early tell of either fast growth or churn, both create roles.

๐Ÿ“‰

Contraction

Recruiting OS5 signals
WARN noticeongoing

An official WARN filing gives you a dated, precise list of who is being released and when.

Layoffdaily

Great talent hits the market in batches. Detect the reduction and reach the affected people first.

Bankruptcyongoing

Ch. 7 / 11 puts both talent and an entire client base into play at once.

Office closuredaily

A site shutdown releases a concentrated pool of local talent all at once.

Down roundongoing

Distress financing raises flight risk among strong staff before any public layoff.

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People availability

Recruiting OS11 signals
Open to workreal-time

An explicit availability flag is the warmest candidate signal, and it cools fast.

Layoff-affecteddaily

A person confirmed impacted by a reduction is on the market now, reach them before competitors.

Employer distressdaily

When a person's employer hits a layoff, down round, or exec exit, that person becomes reachable.

Tenure milestoneongoing

The 3- and 4-year marks are when people quietly start looking.

Title stagnationongoing

Quiet title stagnation while peers move up is a strong, under-watched flight-risk signal.

Contract endingongoing

A contractor or visa term winding down creates a precise, dated window of availability.

Relocationongoing

Someone moving into your market just became locally available for the first time.

Profile refreshdaily

A headline or skills refresh often quietly precedes an active search.

Activity spikedaily

A surge in posting, endorsements, or engagement shows momentum and openness to conversation.

Graduation / certongoing

Finishing a degree, bootcamp, or certification often means re-entering the job market.

Job changeongoing

A recent job change is a poor time to pitch but a great time to map the network and nurture.

Candidate-side signals

Know when a person is reachable

Signals aren't just for accounts. RecruitersOS watches the talent side too, so you reach out when someone is most likely to listen.

  • Tenure milestones, the 3- and 4-year marks when people start looking
  • "Open to work" profile changes detected within hours
  • Promotions passed over and quiet title stagnation
  • Employer distress, layoffs, down rounds, leadership exits
  • Skill endorsements & activity spikes that show momentum
live signal feed
Funding2h ago

Verla Health raised $40M Series B

Plans to triple engineering, 9 roles posted this week.

Layoff1d ago

Pitch announced a 40% reduction

Strong frontend talent now on the market.

New exec5h ago

Brightwave hired a new VP Eng

Ex-Datadog, rebuilds platform teams in 90 days.

Signal pull โ†’ scoring

From noise to a ranked work-list

Raw signals are noisy. RecruitersOS scores them against your ICP so you only act on what matters.

1

Pull

The engine continuously ingests funding databases, job boards, news, and profile changes across your tracked market.

2

Match

Each signal is matched to your Ideal Customer Profile and disqualifiers, wrong size, wrong geo, wrong stage drop out automatically.

3

Score

What remains is ranked by urgency and fit, so the hottest, most timely opportunities rise to the top of your queue.

4

Trigger

High-scoring signals auto-launch a campaign, building the target list and drafting outreach grounded in the signal itself.

Be the first relevant message they read.

Turn market events into warm conversations. Free to start, no card, keep your ATS.

Open the Signal Engine โ†’