TC+ ATS Integration Platform

Overview

Owned and led the initiative to expose TC+ assessment features through APIs for ATS integrations. What started with 5 core APIs evolved into a comprehensive integration platform serving industry giants like Greenhouse, iCIMS, Workday, HirePro, and Abaca, creating a pipeline of 1M+ assessments annually and generating $10M+ in revenue.

My Role & Ownership

• Initiated and owned the complete ATS integration platform from conception to scale
• Architected API ecosystem from 5 initial endpoints to diverse standard and custom APIs
• Implemented multiple authentication mechanisms for different client requirements
• Designed scalable backend infrastructure handling 1M+ assessments annually
• Led integrations with top ATS giants serving 100+ enterprise clients

Technical Implementation

API Architecture

• Standard APIs: Core assessment endpoints for common operations
• Custom APIs: Tailored solutions for specific ATS requirements
• Authentication: OAuth 2.0, API Keys, JWT, and custom auth mechanisms
• Payload Flexibility: Support for diverse data formats and structures
• Rate Limiting: Intelligent throttling to ensure platform stability

Integration Partners

• Greenhouse: Full bidirectional sync with custom workflows
• iCIMS: Enterprise-scale integration with bulk operations
• Workday: Complex data mapping and transformation
• HirePro: Real-time assessment triggering and results
• Abaca: Custom API implementation for specific requirements

Backend Infrastructure

• Framework: PHP with Zend Framework for enterprise reliability
• Databases: MySQL for transactional data, MongoDB for flexible schemas
• Search: Elasticsearch for efficient data retrieval and analytics
• Web Server: Apache with optimized configurations for high throughput
• Scaling: Auto-scaling AWS infrastructure for peak loads

Scaling & Performance

• Implemented horizontal scaling to handle peak assessment periods
• Optimized database queries and indexing for sub-second response times
• Built robust rate limiting and throttling mechanisms
• Ensured 99.9% availability through redundancy and failover systems
• Implemented caching strategies for frequently accessed data

Results & Business Impact

Key Achievements

• Single-handedly initiated and scaled the ATS integration platform
• Enabled $10M+ annual revenue stream through API integrations
• Successfully integrated with 5 major ATS platforms
• Achieved 99.9% uptime with robust infrastructure design
• Created standardized yet flexible API framework supporting diverse authentication methods

Tech Stack