Job Tracker
Persistent application state and status workflows.
PRODUCTION ENGINEERING · DATA INTEGRITY · MODEL INTEGRATION
JobX.OS
FOUNDER & SYSTEMS ARCHITECT · JAN 2026–PRESENT
A founder-built AI job-search and application platform unifying persistent user context, structured model workflows, product analytics, authenticated data systems, and controlled production releases.
2,000+users since launch
564Cloudflare unique visitors
12.35KCloudflare requests
99.9%production uptime
01 / PRODUCT SYSTEM
Five workflows. One persistent application context.
The product connects job tracking, documents, resume analysis, preparation, and interview practice instead of treating each as a disconnected AI prompt.
Knowledge Base
User files retained as reusable application context.
ATS Scorer
Resume-to-role analysis through a structured model workflow.
Interview Prep
Role-specific preparation material and questions.
Mock Interview
Structured voice and text interview practice.
02 / FULL-STACK ARCHITECTURE
A production system with observable state.
The application connects a typed client, authenticated API, relational data model, model services, behavior analytics, and a controlled deployment path.
CLIENTReact + ViteTypeScript frontend TanStack QueryServer-state orchestration
→
APPLICATIONExpress APINode.js backend ClerkVerified identity + sessions
→
DATA + MODELSPostgreSQL + DrizzleJobs · files · usage OpenAI APIATS + interview workflows
→
OBSERVABILITYPostHogProduct behavior Replit + CloudflareHosting · monitoring · DNS
GitHub source of truth→Codex implementation→Bash / pnpm checks→Preview + manual QA→Production + monitoring
03 / INDEPENDENT TELEMETRY
Three measurement layers answer three different questions.
Cloudflare measures traffic through the branded domain, Replit measures activity reaching the deployment, and PostHog records behavior inside the product. Their counts are presented separately because their collection boundaries differ.
CLOUDFLARE · PREVIOUS 30 DAYS
564unique visitorsTraffic through getjobxos.com peaked at 96 unique visitors in one day and did not fall below 14 during the reported daily range.
CLOUDFLARE · EDGE TRAFFIC
12.35KrequestsThe edge served 11,722 SSL requests, 48.13 MB of bandwidth, and blocked five attacks during the same reporting window.
REPLIT · LATEST 30 DAYS
771visitorsDeployment traffic increased 1,229% from the prior 30-day period, with 99.9% production uptime.
POSTHOG · SINCE INSTRUMENTATION
329production pageviewsOf these, 218 were recorded on getjobxos.com across the major product workflows.
Cloudflare country values are request counts, not unique users by country. The largest volumes shown were the United States (11,983), Germany (66), China (55), Singapore (43), and Portugal (34).
04 / SOURCE EVIDENCE
Cloudflare analytics for getjobxos.com.
These screenshots preserve the original reporting context and keep the edge-domain evidence auditable.
05 / ENGINEERING JUDGMENT
Fixed a production 401 without reopening an insecure identity path.
Browser network evidence and database inspection isolated the regression; verified Clerk bearer-token wiring restored the flow while preserving the security boundary.
Designed historical recovery around ownership and reversibility.
Recovery work used verified ownership, backups, serializable transactions, audit events, archival, rollback, and idempotency.
Caught database drift before rollout.
PostgreSQL foreign-key name truncation and repeated Drizzle schema drift were identified during validation rather than after deployment.
Used layered checks before production.
Type checks, automated tests, builds, preview validation, network inspection, cross-account isolation, and live CRUD tests formed the release gate.
06 / QUANTITATIVE SYSTEMS RELEVANCE
Production engineering skills that transfer to quantitative systems.
JobX.OS demonstrates end-to-end ownership of a measured software system: relational data, model/API integration, authentication, observability, failure analysis, and controlled releases.
Systems thinkingMeasurement disciplineData integrityRoot-cause analysisModel/API integrationControlled AI-agent orchestrationRelease validationProduction monitoring