# Senior Frontend Developer (JavaScript, Shopify)

**Company:** [Avomind](http://jobs.workable.com/companies/itqut3GJVYdhK63NreRGL7.md)
**Location:** Cologne, Germany
**Workplace:** hybrid
**Employment type:** Full-time

[Apply for this job](http://jobs.workable.com/view/d475d37a-cea9-49cd-9b3a-0fd5f74b409a)

## Description

We’re working with a **data-driven e-commerce growth agency** and they’re looking for a **Senior Frontend Developer.**

### About the Company:

-   Specialized in **A/B testing and conversion rate optimization**
-   Focus on scaling **Shopify-based e-commerce brands**
-   Culture built on: **Ownership, Respect, High Standards, and Team Spirit**

### What You’ll Do

-   Develop and implement **complex A/B tests** in live Shopify environments
-   Take ownership of the **frontend domain** and technical decisions
-   Mentor and support **junior developers**
-   Provide **accurate effort estimations** and contribute to planning
-   Ensure **high QA standards** across releases
-   Communicate directly with clients on technical topics

### Ideal Profile

-   Proven Shopify experience (beyond basic landing pages)
-   Confident in **client-facing technical discussions**
-   Able to **lead, mentor, and make decisions independently**
-   Proactive and comfortable in a fast-paced environment

## Requirements

-   4+ years experience in **Frontend Development (Senior level)**
-   Strong skills in **HTML, CSS, JavaScript**
-   Solid experience with **Shopify (themes, sections, live environments)**
-   Working knowledge of **jQuery and Git**
-   Experience delivering **production-ready code for real clients**
-   Comfortable owning timelines and managing scope
-   Interest in **AI-assisted development** (e.g. Copilot, Cursor)

## Benefits

-   **Flexible working model: Office, hybrid, or fully remote**
-   **30 days vacation** + 3 additional regional holidays
-   **MacBook Pro** + professional setup from day one
-   **Extras:** Workations, team events, €30/month benefit voucher