Xengineer – Backend Expertise - Wix Payments

Wix · Enterprise · Kyiv, Kyiv city, Ukraine · Information Technology

Backend xEngineer role at Wix Payments focusing on designing and owning core backend systems with an AI-native focus. The role involves using AI tools for planning, design, and execution, ensuring high production standards for AI-assisted outputs. Responsibilities include backend architecture, system design, data models, APIs, and production systems, while collaborating with product managers and designers. Requires 4+ years of software engineering experience, strong system design skills, and experience integrating AI tools into the engineering workflow.

What you'd actually do

Design and own end-to-end backend systems and features that impact millions of users
Focus on backend architecture and system design, making thoughtful trade-offs around scalability, reliability, security, and maintainability
Take full ownership from data models and APIs to production systems and distributed architectures
Use AI as an integral part of your daily work—for planning, design, execution and production, while ensuring AI-assisted outputs meet the highest production standards
Work with modern technologies (e.g., Java, Scala, Node.js, Cloud, and CI/CD) while continuously evolving your toolkit with AI-powered tools
Collaborate closely with product managers, designers, and engineers to shape solutions while ensuring production quality, observability, and long-term system health

Skills

Required

4+ years of experience as a software engineer with strong ownership of production systems
Expertise in at least one core domain (e.g., frontend, backend, mobile) with the ability and motivation to operate across stack boundaries
Strong software and system design skills, including designing APIs, data flows, and scalable, maintainable architectures
Experience integrating AI tools into the engineering workflow, with the ability to evaluate, validate, and iterate on AI-generated outputs
End-to-end curiosity for systems, from product behavior and UX to distributed systems, deployment pipelines, and data stores
A mindset that values product impact, technical excellence, collaboration, and continuous growth in a fast-evolving, AI-driven environment

What the JD emphasized

AI-native focus
AI as an integral part of your daily work
AI-assisted outputs meet the highest production standards
integrating AI tools into the engineering workflow
AI-driven environment
AI-native xEngineers
use AI support to take ownership over projects end-to-end
system design, architecture, scalability, reliability, and security

Read full job description

Company Description

Job Description

As a Backend xEngineer, you’ll design and own the core systems that impact millions of users, working with an AI-native focus to craft high-performance backend architectures and scalable, reliable platforms.

In your day-to-day, you will:

Design and own end-to-end backend systems and features that impact millions of users
Focus on backend architecture and system design, making thoughtful trade-offs around scalability, reliability, security, and maintainability
Take full ownership from data models and APIs to production systems and distributed architectures
Use AI as an integral part of your daily work—for planning, design, execution and production, while ensuring AI-assisted outputs meet the highest production standards
Work with modern technologies (e.g., Java, Scala, Node.js, Cloud, and CI/CD) while continuously evolving your toolkit with AI-powered tools
Collaborate closely with product managers, designers, and engineers to shape solutions while ensuring production quality, observability, and long-term system health

Qualifications

**Requirements: **

4+ years of experience as a software engineer with strong ownership of production systems
Expertise in at least one core domain (e.g., frontend, backend, mobile) with the ability and motivation to operate across stack boundaries
Strong software and system design skills, including designing APIs, data flows, and scalable, maintainable architectures
Experience integrating AI tools into the engineering workflow, with the ability to evaluate, validate, and iterate on AI-generated outputs
End-to-end curiosity for systems, from product behavior and UX to distributed systems, deployment pipelines, and data stores
A mindset that values product impact, technical excellence, collaboration, and continuous growth in a fast-evolving, AI-driven environment

Additional Information

**About the Team **

We are Engineering at Wix – a team of AI-native xEngineers with deep expertise in frontend, backend, or mobile, who use AI support to take ownership over projects end-to-end. We work in a fast-paced, dynamic development environment with autonomous teams that never compromise high quality standards. As AI increasingly generates production code, we dedicate more and more of our time developing the skills we believe are critical for today and tomorrow: system design, architecture, scalability, reliability, and security.