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Convincely increases purchase confidence before checkout through a "See in My Room" preview tool and measures its impact on conversion and revenue.
This is not a design platform.
This is not AR.
This is a performance-driven ecommerce infrastructure layer.
We have a detailed product spec and initial build in Base44.
We now need a senior engineer to:
• Refine and productionize the build
• Finalize the widget logic
• Strengthen the backend architecture
• Ensure the image render pipeline works reliably
• Conduct a full technical audit before launch
What We've Built
Multi-tenant SaaS structure
Subscription + commission logic
Universal JS widget (product-page embed)
Hosted preview flow
Realistic composite render stub
Event ingestion + attribution model
Dashboard with performance metrics
Seeded demo store + test harness
We need to move from "functional build" to production-grade SaaS.
Scope of Work
Architecture & Code Audit
Review Base44 export / structure
Identify technical debt
Validate multi-tenant isolation
Validate event integrity
Validate attribution logic
Validate commission calculation
Ensure no dead routes or broken flows
Deliverable:
Audit report + action plan.
Widget Hardening (Critical)
The widget:
Runs on merchant product pages
Detects product data (JSON-LD, OG, fallback)
Creates preview session
Redirects to hosted preview
Tracks return + thank-you detection
We need:
Robust product detection logic
Clean remote config system
Domain enforcement
Safe token handling
Lightweight performance footprint
Experience required:
Embedded JS / ecommerce environments.
Image Render Stub Refinement
Current pipeline:
Upload room photo
Insert product image
Generate believable composite
You will:
Improve background isolation logic
Improve scaling heuristics
Improve shadow realism
Improve output consistency
Ensure reliability + speed
Not looking for heavy ML work — pragmatic visual compositing is fine.
Backend Reliability
Harden session creation
Validate credit deduction logic
Ensure enforcement states work
Improve aggregation jobs
Optimize database queries
Prevent race conditions on render
Launch Readiness Audit
Before launch, we need:
Full functional walkthrough
Edge-case handling
Past-due enforcement testing
Attribution validation testing
Cross-browser widget test
Mobile testing
Performance review
Deliverable:
Green-light report confirming launch readiness.
Tech Stack
Currently built in:
Base44 (low-code SaaS builder)
Backend:
Serverless-style API endpoints
Frontend:
Custom UI (not template)
We are open to:
Keeping Base44 and hardening
Extracting to custom stack if needed
Hybrid approach
You must be comfortable working with an evolving architecture.
Ideal Candidate
You:
Have built SaaS products before
Understand ecommerce flows
Have written JS widgets
Understand event tracking and attribution
Have experience with image manipulation / compositing
Think in systems, not features
Care about production quality
Bonus:
Experience with Stripe-style SaaS pricing models.
Budget
Open to:
Fixed milestone (audit + hardening)
OR
Hourly with defined deliverables
Please propose:
Your approach
Estimated timeline
Estimated cost range
Relevant SaaS projects you've worked on
Screening Question (Required)
Have you built a third-party embed script before? Explain briefly.
How would you prevent widget abuse or spoofed purchase confirmations?
How would you structure preview → purchase attribution cleanly?
How would you improve a basic image composite stub without heavy ML?
We are building a real product with real merchants.
This is not a prototype.
This is pre-launch infrastructure.
If you are interested, send:
• Your approach
• Relevant experience
• Estimated timeline
Looking for someone sharp, pragmatic, and technically rigorous.
Contract duration of 1 to 3 months.
Mandatory skills: JavaScript, React, PHP, Python,
Sprachkenntnisse
- English
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