Front-End Engineer – AI-Driven A/B Testing (Next.js, Hybrid Sydney)

BizCover Pty; Sydney; Hybrid; AUD 120,000 - 160,000; Full time

Benefits offered by this job

Hybrid work model

Office in Sydney CBD

Recognition awards

Casual dress code

Employee incentive program

Progression opportunities

Job summary

BizCover Pty in Sydney is seeking a front-end developer focused on experimentation to join a small team. You’ll build A/B and multivariate tests using React and TypeScript, integrate with our new experimentation platform, and push winning variants to production with quality tests.

You’ll collaborate with a Senior Experimentation Strategist and a Data Analyst to ensure tests are measurable, fast, accessible, and aligned with AI-driven delivery workflows.

Qualifications

• 3+ years building production web apps in React/TypeScript.
• Experience with Next.js.
• Hands-on experience with A/B testing or feature flags.
• Strong performance and accessibility mindset.
• Familiarity with AI coding tools is a plus.

Responsibilities

• Build A/B and multivariate test variants in React and Next.js (TypeScript).
• Integrate experimentation platform with feature flags, targeting, rollout and clean-up.
• Promote winning variants to production-quality code and remove the rest.
• Work with the Data Analyst so tests are measured correctly.
• Keep pages fast and accessible, with unit and end-to-end tests on experiment code.
• Help define how the team works: ideas to tests, testing lifecycle.
• Suggest what to test next based on code and results.

Skills

React

TypeScript

Next.js

A/B testing

Feature flags

Jest

Playwright

Accessibility

Performance

AI tooling

Tools

Optimizely

GrowthBook

LaunchDarkly

Statsig

VWO

Job description

BizCover Pty in Sydney is seeking a front-end developer focused on experimentation to join a small team. You’ll build A/B and multivariate tests using React and TypeScript, integrate with our new experimentation platform, and push winning variants to production with quality tests.

You’ll collaborate with a Senior Experimentation Strategist and a Data Analyst to ensure tests are measurable, fast, accessible, and aligned with AI-driven delivery workflows.