Checkout Champ Funnel Developer (JavaScript)

Location: Remote from Lithuania, Argentina, Colombia, Romania, or Brazil; reliable overlap with the 8am to 12pm EST collaboration window

Company

HarZa Group builds and scales direct-to-consumer health and wellness brands, including Rejuvacare and RejuvaKnee, through paid digital channels.

What you will do

• Build and maintain end-to-end DTC funnels in Checkout Champ, including advertorials, landing pages, VSL pages, quizzes, product pages, checkouts, upsells, downsells, and post-purchase flows.
• Convert Figma designs, approved copy, and assets into responsive, production-ready pages using HTML, CSS, and JavaScript.
• Develop interactive funnel experiences such as quizzes, selectors, dynamic flows, and A/B test variations.
• Configure offers, order forms, checkout logic, tracking, pixels, events, GTM, scripts, APIs, webhooks, and third-party integrations.
• Debug front-end, checkout, funnel logic, integration, and tracking issues across mobile and desktop customer journeys.
• Create reusable components and templates, and use AI coding tools while reviewing and validating their output.

Requirements

• Strong, hands-on, verifiable Checkout Champ funnel development experience is required.
• Strong HTML, CSS, and JavaScript skills.
• Experience building DTC or performance-driven e-commerce funnels, including checkout flows, offers, upsells, downsells, and funnel logic.
• Experience with A/B testing, tracking, pixels, GTM, conversion events, APIs, webhooks, scripts, and third-party integrations.
• Ability to debug independently, take ownership of the final result, and perform thorough QA across the full customer journey.
• Professional working English and reliable overlap with 8am to 12pm EST are required.

Culture & Benefits

• Fully remote, async-first work environment with a team across more than 15 countries.
• Fast release cycle focused on building, launching, testing, and iterating within the same week.
• Paid time off, wellness support, equipment support, and a learning budget.
• Direct ownership of quality across a portfolio of fast-growing DTC brands.
• Values include ownership, practical problem-solving, craft mastery, and collaboration.