Front End Developer - Experimentation

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

Benefits offered by this job

Hybrid work model

3 days in Sydney CBD office

Quarterly recognition awards

Employee incentive program

progression opportunities

Job summary

BizCover, Australia’s leading online business insurance service, is expanding its experimentation team in Sydney. You will build production-grade web apps using React and TypeScript, implement and manage A/B tests with modern platforms, and ensure fast, accessible experiences.

You’ll collaborate with data analysts and engineers to measure outcomes accurately, promote winning variants, and refine testing processes. A hybrid role with three days in a Sydney CBD office awaits committed developers.

Qualifications

• 3+ years of commercial React/TypeScript experience.
• Proven experience building production web apps in React and TypeScript.
• Experience with Next.js preferred.
• Hands-on with A/B testing or feature-flag platforms.
• Strong focus on performance, accessibility, and automated testing.

Responsibilities

• Build A/B and multivariate test variants in React and Next.js (TypeScript).
• Integrate and configure the experimentation platform with feature flags, targeting, rollout and cleanup.
• Promote winning variants to production-quality code and remove the rest.
• Collaborate with Data Analyst to ensure tests are measured correctly.
• Keep pages fast and accessible with unit and end-to-end tests on experiment code.
• Help define team processes for turning ideas into tests and executing them.
• Propose next tests based on code insights and results.

Skills

React

TypeScript

Next.js

A/B testing

Feature flags

Performance testing

Accessibility

Jest

RTL

Playwright

Tools

Optimizely

GrowthBook

LaunchDarkly

Statsig

VWO

Job description

About BizCover

BizCover is Australia's no. 1 online business insurance service that simplifies comparing and buying cover, so small businesses can save time, money and get instant cover. Operating since 2008, in an industry dominated by big players, time-consuming processes, and poor service levels, BizCover disrupted the insurance market to level the playing field for small businesses. BizCover currently serves over 300,000 SMEs through its online platform.

Why this role exits?

BizCover helps small businesses get insured online in minutes. We have run experiments before, but paused them while we rolled out our new platform. Now our new platform is ready and we are restarting experimentation with a new team, focused on finding out what makes our customer journeys work better and prove it with real tests.

What you'll do

• Build A/B and multivariate test variants in React and Next.js (TypeScript).
• Integrate and configure the new experimentation platform, including feature flags, targeting, rollout and clean-up.
• Promote winning variants to production-quality code and remove the rest.
• Work with the team’s Data Analyst so every test is set up to be measured correctly.
• Keep pages fast and accessible, with unit and end-to-end tests on experiment code.
• Help define how the team works: how ideas become tests, and how tests are launched, reviewed and closed.
• Suggest what to test next, based on what you see in the code and the results.

What we're looking for

• Strong React developer. Commercial experience (typically 3+ years) building production web apps in React and TypeScript. Next.js preferred.
• Experimentation experience. Hands-on experience with A/B testing or feature-flag platforms such as Optimizely, GrowthBook, LaunchDarkly, Statsig or VWO.
• Experiment fundamentals. You know control vs variant, sample size, and why you don’t stop a test early.
• Quality-minded. Performance, accessibility and automated testing (e.g. Jest, React Testing Library, Playwright).
• AI in your toolkit. You use AI coding tools in your work and have views on them.
• Team builder. Comfortable in a small team where you help set the process, not just follow it.

Nice to have

• Analytics tagging, e.g. GA4 or Google Tag Manager
• Insurance, financial services or conversion-focused e-commerce
• Server-side or edge experimentation; design systems

Who you'll work with

• Your team: Senior Experimentation Strategist and Data Analyst
• Across BizCover: Engineering squads and QA, Product, Design / UX, Marketing and Customer Acquisition
• Hybrid working model with 3 days a week in an attractive Sydney CBD office.
• Exciting and rewarding team culture.
• Quarterly recognition awards.
• Business Casual dress code.
• Rewarding Employee Incentive Program.
• Growing company with progression opportunities.

BizCover values

• Customer Fanatic - every test exists to make it easier for a small business owner to get the right cover.
• Drumbeater - you keep tests moving and others feel the momentum.
• Advancer - you find the next thing to try and share what you learned.
• Finisher - tests run to a conclusion, results acted on, code cleaned up.