Conversion - Full-Stack Developer

This is Gain Ltd

Andheri, Maharashtra, India Hybrid permanent

Posted: February 25, 2026

Required Skills

Job Description

Full-Stack Developer

About the Role

We’re looking for a talented and motivated Full-Stack Developer to join the Conversion I/O tech team. You’ll work alongside a close-knit group of engineers building the I/O platform — a proprietary experimentation operating system used by leading brands across EMEA and North America.

You’ll contribute across the full stack, from backend APIs to modern frontend components, working on features that directly impact how we build and manage experimentation programs.

Roles & Responsibilities

Day-to-Day

• Build and maintain features across the full stack using Laravel (PHP) on the backend and Vue.js

• Write clean, well-structured code and participate actively in peer code reviews

• Collaborate with the team via async channels (Microsoft Teams, Jira) and scheduled video calls across timezones

• Debug and resolve issues across the full stack — from database queries to frontend rendering

• Contribute to sprint planning, ticket estimation, and technical discussions on architecture and approach

Longer-Term

• Take increasing ownership of platform features and technical decisions as you build familiarity with the codebase

• Help shape tooling improvements and contribute ideas for making the team’s development workflow more efficient

• Support integrations with third-party platforms including A/B testing tools (Optimizely, VWO, Kameleoon) and analytics APIs

Must-Have Skills

These are the skills we’ll screen for in every candidate. You should be confident using these in production environments.

Backend

• PHP 8.1+ with Laravel — including Eloquent ORM, migrations, service providers, middleware, queue jobs, and Artisan commands

• MySQL — query optimisation, indexing, and relational database design

Frontend

• JavaScript (ES6+) — solid core language understanding

• Vue.js (v2+) including Vuex and Vue Router

• SCSS/SASS and Bootstrap 5

Tooling & Process

• Git and GitHub — branching, pull requests, and GitHub Actions CI/CD

• Docker — comfortable working in containerised local environments

• Strong English communication skills — written and verbal, for async collaboration across timezones

• Experience working with legacy code alongside modern patterns

Good to Have

These skills will make a candidate stand out, but we don’t expect all of them. Familiarity with even a few of these is a positive signal.

Technologies

Domain Knowledge

React, Next.js, Redux

Typescript

RESTful API design

Node.js

GraphQL

Redis, Pusher / Laravel Echo

PHPUnit

OAuth / JWT authentication

AWS (S3, SES), Nginx

DigitalOcean container registry

Vite, Axios, Zod, ESLint

Element UI / Ant Design Vue

TipTap / ProseMirror, D3.js

Understanding of A/B testing principles and experimentation methodology

Familiarity with platforms such as Optimizely, VWO, or Kameleoon

Google Analytics API integration

Jira API

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