Coding Interview Platform

Developed a HackerRank-like application and integrated it with existing ATS (Lever) to help the tech recruiter team increase the candidates that can be processed to coding test from 500+ to 2.000+ (average monthly) and reduce overall hiring SLA to 20%.

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Client: Ruangguru
Category: Ruangguru
Role: Fullstack Developer
Date: May 2021
Technologies:
Ruby on Rails HTML CSS JavaScript MySQL Google Cloud Redis Docker
Project URL: (Internal Use Only)
Candidates Processed

400%

up

Increase in monthly candidate throughput from 500+ to 2,000+

Time-to-Hire

20%

down

Reduction in overall hiring timeline

Engineering Hours

85%

down

Reduction in time spent on manual assessments

Candidate Experience

4.8/5

Average feedback score from candidates

Project Overview

Single-handedly developed a comprehensive Coding Interview Platform for Ruangguru's technical hiring process. As the company scaled rapidly, the existing manual coding assessment process became a bottleneck, limiting the number of candidates that could be evaluated and extending the hiring timeline. This project was identified as a key achievement in boosting recruitment efficiency across the organization.

Project Requirements

  • Create a platform for conducting technical coding assessments for job candidates
  • Support multiple programming languages and test types
  • Integrate with the company's Applicant Tracking System (Lever)
  • Automate the evaluation process to reduce manual review time

The Challenge

The primary challenge was creating a secure, reliable platform that could handle code execution in multiple programming languages while preventing security vulnerabilities. Additionally, I needed to ensure seamless integration with the existing ATS (Lever) to maintain a smooth candidate experience and provide meaningful analytics to the recruitment team, all while working independently on this critical project.

The Approach & Solution

I developed a custom platform that supports code execution in sandboxed environments for multiple programming languages including Python, JavaScript, Ruby, Java, and Go. The system includes automated test cases, plagiarism detection, and performance metrics. I implemented a secure API integration with Lever ATS to automate the candidate invitation and result reporting process, ensuring a streamlined workflow for the recruitment team.

Coding Interview Platform

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