Principal Software Engineer - Search & Discovery

2 Months ago • 8 Years + • $289,460 PA - $338,270 PA
Software Development & Engineering

Job Description

This role is for an experienced software engineer to join Roblox's Discovery team, focusing on building scalable backend systems for content recommendation, search, and notifications. You will design and implement cutting-edge real-time recommendation engines and ML ranking systems to help millions of users discover engaging experiences. The position involves tackling diverse challenges in advertising, search, and discovery at an unprecedented scale, contributing to the future of human interaction on the platform.
Good To Have:
  • Graduate degree or equivalent experience in Computer Science, Applied Math, Physics, Engineering, Statistics, or other technical field.
Must Have:
  • Design and build systems architecture for Roblox content recommendation, search, and distribution.
  • Lead design and implementation to grow backend infrastructure using C#, Go, and data pipeline technologies.
  • Collaborate with other teams (Social, Economy, Platform) for community-first product development.
  • Balance researching new technologies with practical application in Roblox products.
  • Communicate with industry and communities as a Roblox ambassador.
  • 8+ years of experience building and shipping products to production.
  • 5+ years of server-side architecture/design at scale with compiled languages like C#, Java, or C++.
  • 5+ years identifying and driving solutions to difficult, multi-team technical problems.
  • Experience designing and building full-stack systems for consumer-facing APIs handling large numbers of concurrent users.
Perks:
  • Equity compensation
  • Benefits as described on company page

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Why Discovery:

With Roblox’s daily active users growing at a record pace, we are seeking experienced software engineers who thrive on solving complex challenges and designing scalable, ground breaking solutions. In this role, you will develop our backend systems that power the most used surface areas of the app, across Home, Search, Notifications, and more.

You will contribute to the cutting-edge real-time recommendation engines and a powerful backend that drives ML ranking that enable users to discover and interact with experiences across Roblox. These systems drive exploration and engagement across all surfaces, helping users find relevant and exciting content. Looking ahead, our team aims to innovate further through experimentation, building distributed systems to support our scale, and driving new, bold customer features.

Our mission is to connect a billion users with the best content and connections at the right time, tackling diverse challenges in advertising, search, and discovery at an unprecedented scale. Join us and play a pivotal role in shaping the future of Roblox’s search and discovery systems.

You Will:

  • Design and build the systems architecture that powers Roblox content recommendation, search and distribution across surfaces.
  • Lead the design and implementation necessary to grow the backend infrastructure across our tech stack of C#, Go, and several data pipeline technologies.
  • Collaborate with other teams (Social, Economy, Platform) within Roblox to make sure we are building products with a community first approach.
  • Balance researching new technologies with a practical approach to accomplish the research efforts into the Roblox products
  • Communicate with the industry and communities where applicable and be ambassador for Roblox.

You Have:

  • 8+ years of experience building and shipping products to production.
  • 5+ years of server-side architecture/design at scale and compiled language experience such as C#, Java, C++, or others.
  • 5+ years of experience identifying and driving solutions to difficult problems that span multiple teams and require deep technical expertise.
  • Experience designing and building full-stack systems behind consumer-facing APIs that can handle large numbers of concurrent users.
  • Graduate degree or equivalent experience in Computer Science, Applied Math, Physics, Engineering, Statistics, or other technical field is a plus

You Are:

  • A Technical Leader: You have initiated and facilitated challenging technical solutions. Your technical expertise influences product direction. You nurture a culture of technical excellence.
  • Versatile: You're a generalist and you are comfortable with several languages and technologies already; you are adaptable in any situation. You are resourceful, and take a creative and strategic approach to solving hard problems.
  • Analytical: Excited to investigate large, ambiguous problems, and quantify the problems and the solutions.
  • User Oriented: You always start with the needs of the user, whether they are Roblox users or internal engineers before architecting a solution.
  • Team Oriented: You lift up your peers and find ways to make the team stronger.

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