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Senior Software Engineer - Host Networking

Fastly - Sydney, NSW

Source: uWorkin


Fastly helps people stay better connected with the things they love. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing our customers’ applications as close to their end-users as possible — at the edge of the Internet. The platform is designed to take advantage of the modern internet, to be programmable, and to support agile software development. Fastly’s customers include many of the world’s most prominent companies, including Vimeo, Pinterest, The New York Times, and GitHub.

We're building a more trustworthy Internet. Come join us.

Senior Software Engineer - Host Networking

We are looking for a senior software engineer with experience in developing testing and telemetry tools to analyze performance of complex software systems.

You will work closely with a group of systems architects across various engineering disciplines to devise performance testing experiments, codify those experiments and ensure test data is reliable and reproducible.At the end of each testing iteration, you will analyze the data and validate (or reject) performance optimization ideas based on observations.

The role is in our HostNet group. This team is responsible for Kernel, data path innovations and network optimization of our servers.

What You'll Do

  • Work with cross-functional SMEs to collect performance optimization ideas and build a cohesive testing strategy for them
  • Develop a testing framework that can autonomously and reliably validate optimization ideas
  • Frequently present your findings in various cross-functional forums
  • Guide application developers to make the best use of proven optimization ideas
  • Drive innovation in performance tuning space and suggest your own optimization ideas

What We're Looking For
  • Proficiency in Python, Golang or Ruby
  • Good understanding of Linux networking fundamentals such as routing, iptables, netlink, eBPF, XDP, and/or kernel bypass technologies
  • Familiar with Linux systems internals including process, storage and memory management concepts
  • Knowledge of large-scale and mission critical software design considerations
  • Experience using, supporting, or testing high availability systems and infrastructure
  • Willingness to learn and tenacity (we have tracked down CPU bugs!)
  • Patience! This role needs a lot of patience. You will be running many experiments, some of them long running tests but only a small percentage of them are expected to yield significant results. So if you are driven by quick wins this position is probably not for you.

It Would Be An Added Bonus If You Have Experience In ANY Of These

We value a variety of voices, so this is not a laundry list.
  • Real-world experience in building test platforms, running experiments and analyzing the results
  • Experience running, supporting, and using high availability systems and infrastructure
  • Familiarity with web protocols - HTTP, HTTPS, HTTP/2, QUIC+HTTP/3, and/or DNS
  • Experience in network telemetry including instrumenting infrastructure, collecting, processing, storing and analyzing data
  • Experience with infrastructure as a code concepts including Ansible
  • Understanding of probability and statistics as well as experience applying them to novel problems

Why Fastly?
  • We have a huge impact. Fastly is a small company with a big reach. Not only do our customers have a tremendous user base, but we also support a growing number of open source projects and initiatives. Outside of code, employees are encouraged to share causes close to their heart with others so we can help lend a supportive hand.
  • We love distributed teams. Fastly’s home-base is in San Francisco, but we have multiple offices and employees sprinkled around the globe. In fact, 50% of our employees work outside of SF! An international remote culture is in our DNA.
  • We care about you. Fastly works hard to create a positive environment for our employees, and we think your life outside of work is important too. We support our teams with great benefits like up to 20 weeks of paid parental leave, options for free medical/dental/vision plans, and an open vacation program that enables our folks to take the time they need to recharge (some benefits may vary by location).
  • We value diversity. Growing and maintaining our inclusive and diverse team matters to us. We are committed to being a company where our employees feel comfortable bringing their authentic selves to work and have the ability to be successful -- every day.
  • We are passionate. Fastly is chock full of passionate people and we’re not ‘one size fits all’. Fastly employs authors, pilots, skiers, parents (of humans and animals), makeup geeks, coffee connoisseurs, and more. We love employees for who they are and what they are passionate about.

We’re always looking for humble, sharp, and creative folks to join the Fastly team. If you think you might be a fit, please apply!

Fastly is committed to ensuring equal employment opportunity and to providing employees with a safe and welcoming work environment free of discrimination and harassment.

Employment decisions at Fastly are based on business needs, job requirements and individual qualifications, without regard to race, color, religion, gender, gender identity, gender expression, sexual orientation, national origin, family or parental status, disability*, age, veteran status, or any other status protected by the laws or regulations in the locations where we operate. Fastly encourages applicants from all backgrounds.

  • Applicants with disabilities may be entitled to reasonable accommodation under the terms of the Americans with Disabilities Act and certain state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on Fastly. Please inform us if you need assistance completing any forms or to otherwise participate in the application process.

    Fastly collects and processes personal data submitted by job applicants in accordance with our Privacy Policy. Please see our privacy notice for job applicants.
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