Shopify Checkout & Production Engineer Needed
Budget: $1,500 – $3,000 USD
Senior Shopify Headless Checkout & Production Readiness Engineer for Lovable Frontend
Summary
I’m looking for a senior Shopify engineer with real headless experience to finalize and production-harden a Shopify (Basic / Grow plan) checkout integration for a Lovable-based headless frontend.
This is not a theme build or Shopify UI task.
This is an outcome-based integration role focused on correctness, UX continuity, and production readiness.
Current State
• Headless frontend built in Lovable (functional and live)
• Shopify used strictly as the commerce backend
• Cart, products, and checkout initiation already exist
• Gaps remain in post-checkout return flow, order/account routing, and final production configuration
Primary Deliverables (Must Work End-to-End)
Shopify Checkout → Headless Return Flow
• User checks out via Shopify
• Post-payment experience routes the user back to the correct page on the headless frontend
• No dead ends, no confusing transitions, no "stuck on Shopify" flows
• Works within Shopify Basic/Grow plan constraints
Account & Order Routing
• Header "Account" link routes users to Shopify customer login and account pages correctly
• "Order Tracking" flow works from the headless frontend and resolves to accurate Shopify order status
• Behavior is consistent for logged-in and guest users
Cart & State Management
• Cart state behaves correctly after checkout (no stale cart data)
• Checkout initiation behaves predictably from cart drawer and cart page
• No duplicate carts or broken sessions
Shopify Branding (Within Platform Limits)
• Checkout branding configured correctly (logo, colors)
• Order status page and transactional emails aligned to brand
• No promises of unsupported customization (Basic/Grow plan realities understood)
Production Readiness Audit (Important)
In addition to the above, I want you to review and flag any Shopify configuration issues that could cause problems at launch, including but not limited to:
• Products & variants
• Payments & payment methods
• Taxes
• Shipping profiles
• Customer accounts configuration
• Checkout settings
• Domains & return URLs
• API permissions & tokens
• Webhooks (if applicable)
You do not need to implement every recommendation unless agreed, but I do expect you to identify risks clearly.
Definition of "Complete" (Read Carefully)
This is a fixed-price, outcome-based engagement.
The work is considered complete only when:
• I can independently test the full checkout flow end-to-end
• The behavior is materially different from the current state
• No "groundwork," "partial setup," or "ready for testing" is represented as completion
• You are confident it is production-ready
Final payment is released only after the above criteria are met.
Who This Is For
Engineers who have shipped real headless Shopify implementations
People comfortable working within Shopify platform constraints
Candidates who test their own work before calling it "done"
Professionals who communicate risks early and clearly
Who This Is NOT For
Theme-only Shopify developers
"I'll figure it out" generalists
SEO/marketing agencies
Anyone who equates "setup" with "delivery"
What to Include in Your Proposal (Required)
To be considered, please include:
One example of a headless Shopify checkout or post-checkout flow you’ve implemented
How you typically handle post-checkout return flows on Shopify Basic/Grow plans
Any gotchas you’d proactively check before a Shopify headless site goes live
Confirmation that you’re comfortable with outcome-based milestones
Proposals that don’t address these points will not be considered.
Budget
Open to fixed-price proposals based on your recommended approach and scope.
Describe a real headless Shopify checkout you’ve shipped (non-theme). Include the Shopify plan, how checkout was initiated, how post-checkout return was handled, and any key constraints you worked around.
In a fixed-price, outcome-based project, when do you consider work "complete" and appropriate to request final payment? How do you personally verify it’s ready before asking the client to approve?
Before launching a headless Shopify site, what Shopify Admin areas do you proactively audit for production readiness (e.g., checkout, payments, domains, customer accounts, APIs), and why?
Summary
I’m looking for a senior Shopify engineer with real headless experience to finalize and production-harden a Shopify (Basic / Grow plan) checkout integration for a Lovable-based headless frontend.
This is not a theme build or Shopify UI task.
This is an outcome-based integration role focused on correctness, UX continuity, and production readiness.
Current State
• Headless frontend built in Lovable (functional and live)
• Shopify used strictly as the commerce backend
• Cart, products, and checkout initiation already exist
• Gaps remain in post-checkout return flow, order/account routing, and final production configuration
Primary Deliverables (Must Work End-to-End)
Shopify Checkout → Headless Return Flow
• User checks out via Shopify
• Post-payment experience routes the user back to the correct page on the headless frontend
• No dead ends, no confusing transitions, no "stuck on Shopify" flows
• Works within Shopify Basic/Grow plan constraints
Account & Order Routing
• Header "Account" link routes users to Shopify customer login and account pages correctly
• "Order Tracking" flow works from the headless frontend and resolves to accurate Shopify order status
• Behavior is consistent for logged-in and guest users
Cart & State Management
• Cart state behaves correctly after checkout (no stale cart data)
• Checkout initiation behaves predictably from cart drawer and cart page
• No duplicate carts or broken sessions
Shopify Branding (Within Platform Limits)
• Checkout branding configured correctly (logo, colors)
• Order status page and transactional emails aligned to brand
• No promises of unsupported customization (Basic/Grow plan realities understood)
Production Readiness Audit (Important)
In addition to the above, I want you to review and flag any Shopify configuration issues that could cause problems at launch, including but not limited to:
• Products & variants
• Payments & payment methods
• Taxes
• Shipping profiles
• Customer accounts configuration
• Checkout settings
• Domains & return URLs
• API permissions & tokens
• Webhooks (if applicable)
You do not need to implement every recommendation unless agreed, but I do expect you to identify risks clearly.
Definition of "Complete" (Read Carefully)
This is a fixed-price, outcome-based engagement.
The work is considered complete only when:
• I can independently test the full checkout flow end-to-end
• The behavior is materially different from the current state
• No "groundwork," "partial setup," or "ready for testing" is represented as completion
• You are confident it is production-ready
Final payment is released only after the above criteria are met.
Who This Is For
Engineers who have shipped real headless Shopify implementations
People comfortable working within Shopify platform constraints
Candidates who test their own work before calling it "done"
Professionals who communicate risks early and clearly
Who This Is NOT For
Theme-only Shopify developers
"I'll figure it out" generalists
SEO/marketing agencies
Anyone who equates "setup" with "delivery"
What to Include in Your Proposal (Required)
To be considered, please include:
One example of a headless Shopify checkout or post-checkout flow you’ve implemented
How you typically handle post-checkout return flows on Shopify Basic/Grow plans
Any gotchas you’d proactively check before a Shopify headless site goes live
Confirmation that you’re comfortable with outcome-based milestones
Proposals that don’t address these points will not be considered.
Budget
Open to fixed-price proposals based on your recommended approach and scope.
Describe a real headless Shopify checkout you’ve shipped (non-theme). Include the Shopify plan, how checkout was initiated, how post-checkout return was handled, and any key constraints you worked around.
In a fixed-price, outcome-based project, when do you consider work "complete" and appropriate to request final payment? How do you personally verify it’s ready before asking the client to approve?
Before launching a headless Shopify site, what Shopify Admin areas do you proactively audit for production readiness (e.g., checkout, payments, domains, customer accounts, APIs), and why?