# Senior eCommerce Engineer at mantro
> Posted: 2026-11-02 | Status: Active | Source: StoreJobs.dev

## Role Metadata
- **Employment Type:** Full-Time
- **Workplace:** Hybrid — Munich, Zagreb, Trnava
- **Experience Level:** Senior
- **Primary Platform:** #shopify
- **Salary Range:** Undisclosed
- **Required Stack:** shopify, TypeScript, React, Tailwind CSS, UI Components, Headless Shopify, Shopify Plus, Shopify Theme Development, Checkout Extensibility, Google Analytics 4, Google Tag Manager, Payment Gateways, Tax Engines, Core Web Vitals, SEO Optimization, Structured Data, Canonicalization, ERP, OMS, Product Catalog Management, Data Mapping, Headless Commerce, Migration, Server-Side Rendering, AstroJS, Tailwind, Shadcn, GA4, GTM

## Job Description
Requirements
Youve taken a shop live — or migrated one — while it was making money
You tell us unprompted what went wrong last time
You think in checkout probability, not in design taste
Technology-agnostic mindset
Fluent communication in English

Engineering philosophy
Pragmatic, not dogmatic
Migration and redesign are two projects, never one sprint
Every checkout change is measured, or it didnt happen
Principle of least surprise
Build the rollback before you need it
Two journeys, one decision — the funnel earns trust by getting the repair-or-replace call right

Role Summary
Real technical ownership — shops that make money while you work on them
Personal impact
Career option as Lead Dev / CTO in one of our ventures
Onboarding phase mostly on site
After that, a high share of home office and self-directed work

Responsibilities
Commerce implementation including Shopify Plus themes, apps, checkout extensibility
Headless commerce architecture where justified
Payment, tax and shipping configuration across several countries
Migrations under live traffic — no downtime, no lost rankings
Two journeys in one funnel — repair and replace, laid side by side, so the shop knows when a repair should become a new device
Order relay into ERP and fulfillment backends
Product, price and stock feeds — in and out
Analytics wiring that survives a replatform
SEO mechanics: redirects, canonicals, structured data
Journey and decision data tracking

## How to Apply
To view the original listing, see applicant requirements, or apply directly, visit:
https://storejobs.dev/jobs/sf-3099-senior-ecommerce-engineer?utm_source=ai_assistant