Senior Staff Software Engineer, Core Experiences

Box Box · Enterprise · Warsaw, Poland · Experiences

Senior Staff Software Engineer to join Core Experience organization, supporting backend and frontend engineering. This role will shape technical direction, modernize architectures, and lead AI adoption across the organization, enabling teams to use AI in engineering operations and building agents that accelerate the SDLC. The role requires hands-on experience in system design, shipping distributed systems, and driving CI/CD and DevOps practices.

What you'd actually do

  1. Own the architecture of key backend and frontend systems within Core Experiences.
  2. Lead the implementation of high-impact components end-to-end.
  3. Ensure systems are scalable, reliable, and observable from day one.
  4. Partner with engineering teams across Warsaw and Redwood City to turn architecture into working systems.
  5. Lead delivery of large, cross-team initiatives with measurable business impact.

Skills

Required

  • 12+ years of professional software engineering experience across backend and frontend.
  • 5+ years leading complex, cross-team technical initiatives.
  • Ability to operate at both high-level architecture and low-level execution.
  • Proven track record of designing and shipping distributed systems at scale.
  • Hands-on experience breaking monoliths into service-oriented or modular architectures.
  • Strong experience driving continuous integration, CD, and DevOps practices.

Nice to have

  • Mentor senior and staff engineers in system design, implementation, and effective use of AI in engineering.

What the JD emphasized

  • AI agents that support the full software development lifecycle (SDLC)
  • AI-assisted engineering practices

Other signals

  • AI-first company
  • AI agents that accelerate the software development lifecycle
  • AI adoption across the organization
  • AI in their day-to-day engineering operations