case study · P/05

Jobify — Job Portal

Small companies need a simple way to post roles and track applicants, and candidates want to apply from their phone. Jobify covers both sides with one Spring Boot API.

Role: Sole engineer
Timeline: Feb — Aug 2026 · 6 merged PRs
Platforms: Web · iOS · Android
Links: Live ↗GitHub ↗

What I built, layer by layer.

backend

Spring Boot API

BCrypt + JWT login with account type in the token claims
Password reset by emailed OTP; a scheduled job purges OTPs older than 5 minutes
Applicant pipeline: Applied → Interviewing → Offered / Rejected, with interview times
In-app notifications when jobs are posted or interviews scheduled

Spring Boot 3.3 · Spring Security · Spring Data MongoDB · JavaMail · Docker

frontend

React web app

Employer job editor with Tiptap rich text and drafts
Find Jobs / Find Talent with filters and sorting
Axios interceptor attaches tokens and logs out on 401

React 18 · TypeScript · Redux Toolkit · Mantine · Tiptap

mobile

React Native apps

17 screens, résumé upload with the document picker
Built in Expo, then ported to a bare React Native CLI app

Expo 51 · React Native CLI · React Navigation 6

Engineering decisions.

01Applicants embedded in the jobEmbedding applications in the Job document keeps reads to one query. Documents grow with applicants, so history uses a nested query.
02Files stored in MongoDBRésumés and photos live as binary in Mongo: zero extra infrastructure, bounded by the 16 MB document limit. Object storage is the next step.
03Feature branches into developWork flowed through feature branches into develop into main, across 6 merged pull requests.

By the numbers.

counted from the repository

19REST endpoints

17screens per mobile app

4pipeline stages

5 minOTP expiry, auto-purged

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