Case Study : AI Career Matcher
Xeurix
Automating applicant outreach to 50M+ recruiters.

1. Challenge & Constraints
High CPU usage and database performance degradation when parsing high-volume resume files and executing semantic search queries across millions of jobs.
2. Architectural Solution
To solve these bottlenecks, the system was built using the following core patterns:
- Engineered a scalable Node/NestJS backend with PostgreSQL indexes and Redis-backed worker queues.
- Implemented semantic similarity search indexing over 10M+ job vacancies.
- Designed a dynamic PDF parser converting resume files to structured JSON vectors.
3. Measured Outcomes
- Reduced matching latency by 70%, helping job seekers secure interviews 3x faster.
- Outreach systems deliver over 100k automated applicant campaigns weekly.
- Match-scoring algorithms reduced manual filter tasks by 90%.