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Staff Software Engineer, Run-Time Infrastructure - Slack

Company: Slack Enterprise
Location: Denver
Posted on: September 17, 2023

Job Description:

For more information about our website privacy practices, please see our Privacy Statement . Staff Software Engineer, Run-Time Infrastructure - Slack page is loaded Staff Software Engineer, Run-Time Infrastructure - Slack Apply remote type Home - Based locations Colorado - Denver Pennsylvania - Remote Arizona - Remote Florida - Remote North Carolina - Remote time type Full time posted on Posted 15 Days Ago job requisition id JR209588 To get the best candidate experience, please consider applying for a maximum of 3 roles within 12 months to ensure you are not duplicating efforts. Job Category Software Engineering Job Details About Salesforce We're Salesforce, the Customer Company, inspiring the future of business with AI+ Data +CRM. Leading with our core values, we help companies across every industry blaze new trails and connect with customers in a whole new way. And, we empower you to be a Trailblazer, too - driving your performance and career growth, charting new paths, and improving the state of the world. If you believe in business as the greatest platform for change and in companies doing well and doing good - you've come to the right place. BackgroundSlack enables people all over the world to communicate and collaborate together. Teams of all scales - from the world's largest public companies to the smallest of startups - use Slack to get work done, so we take performance and reliability very seriously. A taste of our scale:

  • The average user spends over 10 hours connected and 2.5 hours active in Slack every single day
  • 1.5 billion+ messages are sent per month, half of those outside the United States
  • Every day we see over 10M+ daily active users, over a billion web requests, and 10s of billions of database queries.
  • We handle about 600k requests per second, summing up the entire day gets us at about 6 billion API requests served per day.
  • For millions of people, Slack is the primary communication tool they use at work all day long. They expect it to be exceptionally reliable and fast, all the time .
    About the Team

    WebApp Infra (WIN) pillar provides the tools to make it possible for hundreds of developers to develop in a multi million line codebase with safety and productivity at the forefront. WIN handles maintenance and upgrades of the Hack programming language, static analysis tooling, widely used libraries in the codebase, asynchronous job queue, as well as tuning and debugging the HHVM runtime and other services it depends on. With four sub-teams : Language, Runtime, Reliability aka WIRE and asynchronous services (AServ), webapp infra team supports the middle layers of the stack above the AWS instances and below the product code. This role is open for the Runtime sub-team.

    The WebApp Infra Runtime team is a small team making a large impact. We are responsible for Slack's deployment of HHVM, the virtual machine that runs the Hack programming language that Slack's Webapp backend is written in. We work with product teams to build Hack client libraries and C++ extensions to add more capabilities to WebApp. We fix bugs in HHVM and improve performance across the whole platform. Small improvements can make a big difference: every request that Slack's backend serves runs on systems we support.

    We rapidly iterate and work closely with other teams in engineering to ensure we build resilient systems that can scale. We have a strong commitment to quality and understand that simplicity and reliability should be primary aspects of the systems that we build. We are ambitious, independent, and pragmatic.
    -What you will be doing:
    • Collaborate with peers across Engineering to triage bugs and troubleshoot complex production issues across the stack, especially with respect to performance, memory, and stability
    • Write, review, or provide feedback on a technical design proposal
    • Maintain client libraries that allow backend engineers to access all the capabilities of the WebApp platform
    • Test out a patch or new build of HHVM
    • Upgrade the Hack language and HHVM runtime
    • Optimize the build process or production HHVM configuration
    • Make improvements to HHVM and potentially contribute them to the open-source projectWhat you should have:
      • Bachelor's degree in Computer Science, Engineering or related field, or equivalent training, fellowship, or work experience.
      • Possess strong Computer Science fundamentals: data structures, algorithms, programming languages, operating system, distributed systems.
      • Strong systems thinking abilities. You can reason about queues, retries, concurrency and contention and use them to build useful models of real software.
      • Experience with Linux, including common debugging and profiling tools.
      • Experience building large scale systems professionally for 7-10 years and can point to things you've worked on.
      • Experience improving performance and reliability of a complex system. You enjoy finding opportunities for performance and memory improvements through extensive profiling.
      • Experience with Software-as-a-Service (SaaS). You have deployed plenty of code to live production environments, and understand what it takes to do so safely but efficiently.
      • Can jump into situations with few guardrails and make things better.
      • Write code that can be easily understood by others with an eye towards clarity and maintainability.
      • Are a very strong communicator. You're excited to explain complex technical concepts and share your knowledge with different audiences.
      • Are comfortable leading cross-functional projects and setting a vision for systems architecture.
      • Are curious how things work and when things break you are eager and able to help fix them.
      • Are comfortable mentoring and coaching engineers and sharing feedback.Bonus Points:
        • Have experience working in large C++ codebases.
        • Have experience building, profiling, and debugging systems software, like language runtimes, databases, web servers, virtual machines and operating systems. Accommodations If you require assistance due to a disability applying for open positions please submit a request via this Accommodations Request Form . Posting Statement At Salesforce we believe that the business of business is to improve the state of our world. Each of us has a responsibility to drive Equality in our communities and workplaces. We are committed to creating a workforce that reflects society through inclusive programs and initiatives such as equal pay, employee resource groups, inclusive benefits, and more. Learn more about Equality at and explore our company benefits at . Salesforce is an Equal Employment Opportunity and Affirmative Action Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status. Salesforce does not accept unsolicited headhunter and agency resumes. Salesforce will not pay any third-party agency or company that does not have a signed agreement with Salesforce . Salesforce welcomes all. For Colorado-based roles, the base salary hiring range for this position is $175,600 to $254,700.Compensation offered will be determined by factors such as location, level, job-related knowledge, skills, and experience. Certain roles may be eligible for incentive compensation, equity, benefits. More details about our company benefits can be found at the following link: Similar Jobs (3) Staff Product Security Engineer remote type Home - Based locations 5 Locations time type Full time posted on Posted 6 Days Ago Staff Software Engineer, Data Ingestion - Slack remote type Home - Based locations 8 Locations time type Full time posted on Posted 18 Days Ago About Us Slack is a messaging app for business which lets you organize conversations into channels so everyone moves faster and stays in sync. It's a platform that connects everyone in your business-employees, customers, and partners- securely with each other and integrates easily with apps you use every day to get work done. And everything happens, using any device, within a digital workspace that's super easy to use.Ensuring a diverse and inclusive workplace where we learn from each other is core to Slack's values. We welcome people of different backgrounds, experiences, abilities and perspectives. We are an equal opportunity employer and a pleasant and supportive place to work.Come do the best work of your life here at Slack.

Keywords: Slack Enterprise, Denver , Staff Software Engineer, Run-Time Infrastructure - Slack, IT / Software / Systems , Denver, Colorado

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