Senior Backend Engineer - Functions

Wix Wix · Enterprise · Vilnius, Vilnius County, Lithuania · Information Technology

Senior Backend Engineer role at Wix, focusing on designing high-performance backend architectures while also working end-to-end and leading with AI-native workflows. The role involves collaborating across backend and frontend, designing APIs, applying AI-assisted development tools, setting technical direction, and writing production-grade code. The team operates at a massive scale and is evolving towards an AI-assisted way of working.

What you'd actually do

  1. Collaborate across backend and frontend to deliver features end-to-end — you won't work in isolation, but you're expected to contribute meaningfully on both sides of the stack
  2. Design, build, and evolve SPIs and APIs together with the team, plugging into Wix's business logic ecosystem across multiple business areas
  3. Collaborate closely with product managers, designers, and engineers across teams to ship cohesive, high-quality experiences
  4. Apply AI-assisted development tools to move faster and raise the quality bar
  5. Set technical direction within the team — influence architecture decisions, define patterns, and raise the engineering bar

Skills

Required

  • 5+ years of software engineering experience
  • Proficiency in at least one of: Scala, Java, or Node.js
  • Excellent English language skills
  • Curiosity to touch & learn frontend
  • Good communication and organizational skills
  • Pragmatic approach to quality

What the JD emphasized

  • AI-native workflows
  • AI-assisted development tools
  • AI-assisted way of working