Find who your
search missed.
Build source packs, run open-web searches, and turn candidate evidence into recruiter-confirmed Candidate 360 profiles.
From req to Candidate 360 in one workflow.
Define must-haves, disqualifiers, target companies, and HM calibration questions.
Generate search lanes, Boolean strings, X-Ray queries, and adjacent title maps.
Search public sources, collect evidence, and save source profiles to the Candidate Graph.
Review recruiter-confirmed identity matches, evidence, and outreach angles in one dossier.
Powered by Candidate Graph — SourcingOS keeps source profiles, evidence, contact signals, and identity matches in one recruiter-confirmed candidate record.
Start sourcing in 30 seconds. No account required.
BooleanOS, X-Ray Launcher, and the JD Strategy Tool are free and open. They wire directly into the Candidate Search beta workflow.
BooleanOS
Generate recruiter-ready Boolean strings by role mode — technical, cleared, cyber, healthcare, AI/ML, GovCon.
Open tool →Open-web searchX-Ray Launcher
Build Google X-Ray searches across GitHub, public resumes, LinkedIn, Hugging Face, OpenAlex, and open-web sources.
Open tool →Search strategyJD Strategy Tool
Turn a messy job description into source lanes, target titles, Boolean strings, and hiring manager calibration questions.
Open tool →Candidate Search beta.
The main SourcingOS workbench connects role intake, search strategy, open-web discovery, and Candidate 360 dossiers into one recruiter-controlled workflow. No autonomous sourcing. No silent merges. Evidence stays visible.
Req-to-lane in one pass
Paste the JD. Get role summary, must-haves, target titles, search lanes, and HM calibration questions.
GitHub, OpenAlex, npm, and more
Search 17 public source connectors. Status-labeled honestly: live, preview, or manual-safe.
No auto-merge. Ever.
Source profiles stay separate. Recruiter confirms identity matches before they roll up into Candidate 360.
Evidence dossier
Evidence matrix, contact signals, open-to-work signals, verify-next checklist, and HM pitch.
Jobs for people who find people.
Remote recruiter, technical sourcer, healthcare recruiter, cleared recruiter, recruiting ops, and AI recruiter jobs — pulled from public sources and linked to original listings.
Methods that ship with the methodology.
Source Pack Methodology
Turn a req into lanes, strings, false positives, and HM calibration notes.
MethodGitHub X-Ray Lane
Find technical evidence through GitHub profile and repo search patterns.
MethodCyber Boolean Lane
Build ISSO, SOC, RMF, AppSec, and cleared cyber strings.
MethodCleared GovCon Lane
Map donor companies, clearance breadcrumbs, and secure delivery evidence.
MethodHealthcare Open-Web Lane
Use registry, credential, and local-market research for clinical hiring.
MethodAI/ML Research Lane
Combine GitHub, Hugging Face, OpenAlex, arXiv, and conference signals.
Flagship sourcing guides.
The Source Pack Methodology: How Senior Sourcers Structure Hard Searches
A practical operating system for turning a messy req into search lanes, Boolean strings, evidence rules, and a repeatable sourcing plan.
Technical SourcingGitHub X-Ray Sourcing: Copy-Paste Search Patterns for Technical Recruiters
A senior-sourcer guide to using Google X-Ray and GitHub profile evidence for DevOps, AI/ML, security, cloud, and systems searches.
Boolean Library30 Boolean Search Strings for Cybersecurity Recruiters
Role-specific Boolean logic for ISSO, ISSM, SOC, RMF, AppSec, cloud security, pen testing, and cleared cyber roles.
GovCon SourcingHow to Source Cleared DevSecOps Engineers
A GovCon sourcing playbook for TS/SCI, AWS GovCloud, Kubernetes, Terraform, RMF, ATO, NIST, FedRAMP, and secure delivery signals.
Tool ComparisonsLinkedIn Recruiter Alternatives for Sourcers: Build a Modern Open-Web Stack
A practitioner-first look at replacing or supplementing LinkedIn Recruiter with free tools, open-web search, contact finders, and workflow systems.
Request Candidate Search beta access.
SourcingOS is in private beta for senior sourcers and recruiting teams working hard-to-fill technical, cleared, healthcare, and AI roles.
Request access