Reliability Engineering at Coinbase – The Coinbase Weblog

Why Reliability Engineering?

Why is Reliability Engineering related at an organization like Coinbase? Why would we wish to construct a Reliability Engineering group?

“Our objective is to make Coinbase the most trusted and best to make use of digital forex change.”

-Brian Armstrong, Co-founder & CEO

All of it comes again to what our CEO Brian Armstrong stated about Coinbase desirous to be essentially the most trusted. Our objective within the cryptocurrency business is to create an open financial system for the world — and a part of that requires us to construct essentially the most trusted digital forex change. In an effort to be essentially the most trusted change, we have to be essentially the most dependable. Being dependable is a aggressive benefit in our business, whereas being unreliable is a critical danger to our enterprise.

Earlier than you get too deep into this text, please be aware that we’re actively hiring nice Reliability Engineers, so if any of this sounds attention-grabbing to you please head over to our Senior Reliability Engineer job posting here.

What's Reliability Engineering?

The mission of the Reliability Engineering group at Coinbase is:

“Assist engineers design & preserve their guarantees in manufacturing.”

The phrase “promise” in our mission assertion is a reference to Promise Theory which was invented by Mark Burgess. Whereas we use lots of the rules from the Google SRE books, we discovered Promise Idea to be extra human-friendly than the time period “Service Degree Goal” which is a bit jargon-y. Based mostly on the investigations into security and reliability by folks like Sidney Dekker and corporations akin to Toyota (see the Toyota Way), we contemplate reliability to be finally a human problem. Because of this we most popular to reference an idea which each and every human already understands — that of constructing and preserving guarantees.

Main variations between Reliability Engineering at Coinbase vs Web site Reliability Engineering (SRE) at another firms:

  • We're generalist software program engineers at the beginning. We give attention to fixing challenges by writing higher software program reasonably than including increasingly more people to push buttons. Everybody on the group is a powerful software program engineer, engaged on a number of software program methods in a wide range of programming languages.
  • We should not have front-line pager accountability. We're on-call for the methods that we ourselves personal (e.g. the Coinbase observability stack), however we're not the primary line of incident response for different groups. Service and product groups have their very own pager rotations.

We like to use the metaphor of ‘educating an individual to fish vs giving them a fish’ to how we function — our mission is to “educate groups to fish” by way of reliability. That is in distinction to “giving them a fish” by dealing with front-line pager duties on their behalf. One other method of placing it's that our objective is to up-level each engineering group at Coinbase to be self-sufficient in Reliability Engineering.

How do Reliability Engineers work?

One of many essential issues to understand about reliability engineering is that it's inherently cross-cutting all through the group. Reliability is just not itself a practical silo — it's a worth and a enterprise output. Our prospects are each single engineering group at Coinbase. Since we work with so many shoppers, we have now outlined completely different fashions of engagement to satisfy their wants:

  • Advisory. That is answering questions, or responding to ad-hoc requests with out formal deliverables. For instance responding to “Assist me monitor/scale/enhance my factor” questions in Slack, or leaping into manufacturing incidents to assist responders.
  • Consulting. We frequently run structured reliability workshops and pairing classes with different groups. In these engagements, we have now a shared objective (in our case, OKR) with the group we’re consulting with — thus there's a measurable final result. Whereas consulting engagements are formal, they're sometimes part-time endeavours.
  • Embedding. Generally groups will want full-time reliability assist from our engineers, they usually request that we bodily sit and work with them, collaborating of their standups, dash plannings, and so on. That is the place we use embedding. Much like Consulting, this work has a shared objective and measurable final result (OKR) — the distinction is the reliability engineer is a short lived (sometimes, one calendar quarter) member of the client group.

Past the varied methods we have interaction with prospects, we comply with a normal “agile” software program engineering course of. We have now a weekly planning assembly to replace our Kanban board, conduct month-to-month retrospectives and maintain every day standups. Longer-term technique and measurements are captured in quarterly OKRs which we derive from buyer suggestions and inner dialogue.

Introducing the Coinbase Reliability Engineering Group

The Reliability Group was based in 2018 with one engineer (Luke Demi) and myself (Niall O’Higgins) as supervisor. Since then, we’ve grown to 7 engineers and shipped a number of enhancements.

Within the phrases of parents on the group, listed below are some accomplishments we will talk about publicly in addition to impressions and experiences from engaged on reliability!

Luke Demi

After becoming a member of Coinbase in 2016, my preliminary efforts inside the firm targeted on constructing self-service infrastructure for engineers. Nevertheless in 2017 as curiosity in cryptocurrency surged, Coinbase started to expertise outages throughout our methods. Fixing these types of reliability problems excited me, so I dove in head first to unravel these points.

We have been in a position to survive 2017, however it was clear that so as to face up to future surges and supply a dependable expertise for our prospects we would wish to make reliability a core part of the engineering tradition at Coinbase.

I discover the Reliability Group thrilling as a result of we’re in a position to each advise groups on greatest practices for selecting reliability indicators (Service Degree Indicators AKA SLIs) and guarantees (AKA SLOs) in addition to construct the instruments that permit engineers perceive the efficiency of their methods in manufacturing.

Maksym Naboka

I joined Coinbase in July 2018. Being the third engineer on the Reliability Group was a tremendous expertise. There are such a lot of issues I like in regards to the firm and I’d like to spotlight few of them:

  • A chance to work with / study from sensible and proficient folks.
  • Mission possession. An engineer on the Reliability Group owns a undertaking throughout from design to transport.
  • Means to contribute to Open Supply.
  • Be taught, study and study. Coinbase offers so many alternatives to study new expertise. It appears like we're using each spare minute to study new issues! We have now Lunch & Be taught classes with visitors from main expertise firms, each engineer has an annual academic finances to go to conferences or take on-line lessons.
  • Scrumptious meals on website 🙂

Amy Li

Once I first joined the Reliability Group in November 2018, I used to be below the impression that I'd be thrown into the deep finish of blockchain — drowning in Bitcoin, Ethereum, and sensible contracts. Colleagues additionally warned me of infinite firefighting and nightmarish on-call rotations. Thankfully, this was not the case.

The Reliability Group doesn’t work with blockchains immediately and aren’t the primary ones being paged for each single incident. Every Coinbase group owns the every day operations of their particular services or products. This permits for distributed data throughout the group.

As a brand new school graduate I initially felt overwhelmed, however everybody on the group has been extremely supportive and prepared to share their data. Inside a month, Niall and I improved our incident administration system by integrating it with JIRA. I wrote my first design doc to additional combine PagerDuty with our incident administration system and I'm regularly making incremental adjustments to our system.

Probably the most essential issues I’ve realized is that working with wonderful group members is priceless. The Reliability Group is a gaggle of curious, empathetic, and clever people and there’s no different group I'd reasonably be with for 5 days every week.

Paul Henry

Probably the most attention-grabbing a part of being on the Reliability Group for me is our high-level perspective throughout the group. Since we're not tasked with dealing with day-to-day operations of any particular Coinbase product (, Coinbase Professional, Coinbase Pockets, and so on), we will give attention to enhancing the power for groups to look at and perceive their methods. Because of this groups can transfer sooner, incidents are resolved faster, and there’s a decentralization of data throughout the group.

Right here’s some examples of enhancements that I’ve contributed to over the previous yr:

  • Writing light-weight stats, tracing, and logging libraries for the varied languages in use throughout the group.
  • Contributing to “paved roads” for numerous languages and making certain that builders have start line for brand new providers, with sane defaults.
  • Introducing new distributors (akin to Datadog) to deliver extra dimensions of observability, unlocking new methods of monitoring methods.
  • Bringing a perspective of reliability to expertise decisions made by groups and serving to them ask the best questions.
  • Contributing to our deployment tooling to combine excessive degree monitoring by default on all providers.
  • Enabling using gRPC throughout the group by way of shopper technology in numerous languages and integration into our AWS structure. See weblog submit “gRPC to AWS Lambda: Is it Possible?

Along with shared tooling, we have interaction with many groups throughout the group by working workshops, evaluate classes, and workplace hours.

Workshops are hands-on classes that concentrate on subjects like observability tooling and promise building, inside the context of that group’s providers or downside area.

Overview classes occur each early within the design course of for providers and later when they're nearing manufacturing. These evaluations don't act as a gate or “inexperienced test mark” for groups, however as an alternative ensure that they're asking the best questions and highlighting ways in which the reliability group can degree up groups throughout the group.

Workplace hours are open time each week for any engineer to deliver issues or suggestions to our group by pairing with an engineer. Matters often embody: how one can construct efficient screens and dashboards, integrating tracing or metrics libraries, what database ought to I take advantage of for this explicit downside, and extra.

On the finish of the day, my favourite half in regards to the Reliability Group is the various set of engineers we have now. The breadth and depth of data shared by everybody is a good assist construction for tackling an issue of any scale.

Jordan Sitkin

I've an uncommon background for an infrastructure engineer. I studied graphic design at school and labored for the primary half of my profession as a designer. Becoming a member of the Reliability Group was, for me, the most recent step in an extended, ongoing journey away from the entrance finish. I’ve actually loved the brand new challenges I’ve confronted on this group and have been pleasantly stunned at how usually my expertise as a designer finally ends up being related right here.

My favourite half about being on the Reliability Group is being near the place the thrill is occurring throughout the corporate. The best want for reliability experience is commonly round new product launches or new-found success of some current product. We’ve been pursuing a brand new mannequin of embedding reliability engineers in different groups the place their experience is required most. I’m personally presently embedded within the Shopper group, which is answerable for and the Coinbase cellular apps. I’ve loved feeling near the entrance traces of product growth whereas nonetheless specializing in infrastructure.

One other rewarding side of being on the Reliability Group has been turning our work into convention talks. Over the previous yr I had the possibility to talk at MongoDB World and QCon about designing load testing methods. I had by no means given a chat earlier than, so this was an excellent studying alternative for me and I ended up having a number of enjoyable doing it.

Engaged on the Reliability Group is likely one of the most enjoyable positions at Coinbase as a result of we get to be part of so many various initiatives and initiatives throughout the corporate. We’ve acquired an excellent range of experience on the group. I’ve by no means realized a lot so shortly.

Reliability Engineering and the Future

Up to now yr, our group has helped all of Coinbase construct a tradition of reliability within the following methods:

  • Transferring the complete engineering group from a reactive stance on reliability (firefighting, and so on.) to a proactive one (putting in smoke detectors) with service degree indicators and guarantees.
  • Offering a world-class observability stack comprised of three pillars — tracing, metrics and logs.
  • Designing and implementing high-performance infrastructure providers.

We stay up for doing rather more over the subsequent yr akin to:

  • Constructing the serverless basis to speed up function growth.
  • Serving to transfer to a service oriented structure by constructing core infrastructure such because the service mesh.
  • Leveling up each single group by way of efficiency engineering, high quality and incident response.

If any of this sounds attention-grabbing to you please head over to our Senior Reliability Engineer job posting here.

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