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Reverb · Staff Software Engineer I, Web Performance

Company Description

Etsy is the global marketplace for unique and creative goods. We build, power, and evolve the tools and technologies that connect entrepreneurs with buyers around the world. Etsy, Inc.'s 'house of brands' portfolio has expanded to now include four individually distinct ecommerce brands -- Etsy, fashion resale marketplace Depop, musical instrument marketplace Reverb, and Brazil-based handmade goods marketplace Elo7. As an Etsy employee, you'll tackle unique problems alongside talented coworkers committed to Keeping Commerce Human. We're large enough that you'll focus on meaningful, complex challenges, but small enough that you can make a rewarding impact.

Job Description

The Web Performance team is looking for a Senior Software Engineer I or II to join our mission to make Etsy’s marketplace experience fast.

As a member of the Web Performance team you will be responsible for crafting performant user experiences for buyers and sellers, building instrumentation and observability tools, and advocating for performance across Etsy. Do you find joy and happiness digging into data and discovering opportunities for optimization? If so, this could be a terrific match.

What’s this team like at Etsy?

  • We build delightful products and experiences for people buying and selling with Etsy. In this role you will be contributing at all levels of our web application stack, ranging from back-end technologies (object-oriented PHP, MySQL) to front-end web interfaces (HTML, CSS, JavaScript).
  • Our team documents and distribute knowledge of performance best practices across engineering at Etsy.
  • We work most closely with other software engineers across the organization, while also meeting an array of other partners of all different backgrounds.
  • We're also responsible for improving and maintaining our internal metric tracking tools, and using them to craft narratives around Etsy’s overall performance optimization strategy

Your Role

  • Work collaboratively with teams that are responsible for Etsy’s design system, accessibility, and internal tooling
  • Utilize our in-house analytics tools to gather information and gain insights for both quantitative and qualitative methods to guide decisions.
  • Help our product partners understand what might be causing performance issues relevant to their work
  • Partner closely with the engineering manager and use your engineering expertise to unblock projects by weighting potential solutions
  • Build standards that improve technical plans, developer workflows, recommend standard methodologies, and help mentor other specialists on the team to grow their technical expertise.



  • You are a mindful, clear, and communicative technical leader of your team.
  • Familiar with browser monitoring APIs (both RUM and synthetic) and have a solid understanding of performance metrics (e.g. Web Vitals).
  • Understand the browser request pipeline and rendering “waterfall”, and how to optimize it.
  • You have any combination of skills regarding data streaming, SQL, Google BigQuery, or similar experience.

Additional Information

What's Next

If you're interested in joining the team at Etsy, please send a cover letter and resume telling us why you'd be right for the position. As you've hopefully seen already, Etsy is a place that values individuality and variety. We don't want you to be like everyone else -- we want you to be like you! So write to us and tell us what you're all about.

Our Promise

At Etsy, we believe that a diverse, equitable and inclusive workplace makes us a more relevant, more competitive, and more resilient company. We encourage people from all backgrounds, ages, abilities, and experiences to apply. Etsy is an equal opportunity employer. We do not discriminate on the basis of race, color, ancestry, religion, national origin, sexual orientation, age, citizenship, marital or family status, disability, gender, gender identity or expression, pregnancy or caregiver status, veteran status, or any other legally protected status. We will ensure that individuals with disabilities are provided reasonable accommodations to participate in the job application and interview process, to perform essential job functions, and to receive other benefits and privileges of employment. While Etsy supports visa sponsorship, sponsorship opportunities may be limited to certain roles and skillsets.

For U.S. roles only:

Many Etsy roles are open to remote candidates, and you'll be able to identify which ones within the location header of each job description. We're open to remote hires from all U.S. states except Hawaii and Alaska. For candidates who will work remotely from Colorado, visit this link for information related to Colorado's Equal Pay for Equal Work Act.

Apply Now

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