Experienced Checkout Champ Developers for Large-Scale E-Com Processing Project

Senior Checkout Champ Developer(s) – Long-Term Project (Multiple Roles) We're building a large-scale, long-term platform and are looking for multiple developers with proven, hands-on Checkout Champ (formerly Konnektive) experience. This is not an introductory project — real, demonstrable experience with Checkout Champ is a hard requirement. Please do not apply if you have only worked with Shopify, WooCommerce, ClickFunnels, or similar without direct Checkout Champ work. About the project We are developing a platform that will be rolled out to e-commerce entrepreneurs who need stable, reliable recurring-billing infrastructure and private processing support. The system will handle high-volume transactions, subscription/recurring billing, and complex order management at scale. Stability, security, and clean architecture are critical, as merchants will rely on this platform to manage their recurring revenue. What you'll work on Building and maintaining funnels, checkout flows, and order management inside Checkout Champ Deep integration work via the Checkout Champ API (server-side API calls, order import, lead import, order query, membership/subscription endpoints) Recurring/subscription billing logic and customer lifecycle management Payment gateway integrations and intelligent processor routing (multiple MIDs / gateways) Custom development and extensions on top of the platform Reliable, well-documented, maintainable code that scales Must-have requirements Verifiable, multi-year hands-on experience with Checkout Champ / Konnektive (please describe specific projects) Strong back-end development skills (PHP and/or Node.js) for server-side API integration Solid understanding of the Checkout Champ API flow and order/funnel reporting logic Experience with recurring billing, subscriptions, and high-volume e-commerce Familiarity with payment gateways, processor routing, and gateway configuration Nice to have Experience with private processing setups and MID management Knowledge of fraud/risk handling within Checkout Champ Experience migrating brands onto Checkout Champ Front-end skills for page builder / checkout page customization (HTML, CSS, JS) How to apply In your proposal, tell us: How many years you've worked with Checkout Champ and on how many brands/projects A specific Checkout Champ problem you solved (API, billing, routing, etc.) Your availability for a long-term engagement Applications that don't mention concrete Checkout Champ experience will not be considered. We're hiring multiple developers, so strong candidates at different experience levels are welcome.