Senior Full-stack Developer (Node.js/React)

We are looking for an experienced and independent Full-stack Developer with a focus on complex e-commerce data integrations. The goal is to enable integration between popular e-commerce platforms and a proprietary analytics tool designed to evaluate purchase behavior and customer lifetime value (LTV). 

The goal is to enable e-commerce platforms to connect their data to an internal tool that analyzes transactional and user-level revenue event data to generate customer insights. Initial integrations will focus on Shopify and Magento, but the broader objective is to build a flexible foundation for integrating with similar platforms in the future.

Duration: Initial test phase (2-3 weeks) with potential for long-term engagement based on the results

Location: Europe, Ukraine

Language: English (Upper-Intermediate/Advanced)

Experience & Expertise

• Strong Full-stack development experience with the ability to own integration projects end-to-end.

• Experience integrating with e-commerce platforms (e.g., Shopify, Magento).

• Proficiency with APIs, data transformation, and working with formats like CSV and JSON.

• Back-end experience (Node.js, PHP, Python, or similar — flexible).

• Front-end proficiency (React, Vue, or other modern JS frameworks).

• Familiarity with OAuth, JWT, and handling third-party access/consent flows.

• Solid problem-solving skills; able to work independently and with minimal supervision.

• Strong communication skills in English.

• Familiarity with cloud platforms will be strongly beneficial (AWS, GCP or Cloudflare)

Process Flow:

1. HR pre-screen + English check (0.5 h)

2. Professional interview (1 h)

3. Intro call with CTO (0.5h)

4. Client's technical interview (1h)