Sr Engineer - Engineering Systems, Performance at Toast

| Greater Boston Area
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We are a rapidly growing company that’s revolutionizing the way the restaurant industry does business by pairing technology with an unrivaled commitment to customer success. We help restaurants streamline operations, increase revenue, and deliver amazing guest experiences through our platform that combines restaurant point of sale, guest-facing technology, and award-winning customer support. As a Toaster, you will be challenged to take on meaningful projects that will help shape the future of the company. Join us as we empower the restaurant community to delight guests, do what they love, and thrive.

The Performance team is looking for a self-motivated individual who loves monitoring distributed systems. Toast engineering teams are pushing the boundaries of Android performance and building a highly reliable and scalable AWS-hosted platform that supports our fast-growing customer base. The team’s mission is to transform the architecture through observation, measurement, and validation. One day you may be putting yourself in the customers shoes to understand the performance of their restaurant and the next digging through the inner workings of our infrastructure to find where bottlenecks are at the lowest levels of our stack. We build performance testing and observability frameworks that empower our engineering teams to quickly get performance and scalability feedback about their proposed code and infrastructure changes. Join the Performance Engineering team to champion performance, deliver fast applications, and drive our platform to architectural excellence.

Recent projects include:

  • Building out an observability framework that monitors the health and performance of our fleet of tens of thousands of devices in production.
  • Using Espresso, JMeter, and the ELK stack, we built a simulation of a high volume customer that we use to run various experiments with.
  • Deploying a synthetic monitoring solution in production that tracks, trends, and alerts on the performance of our critical transactions.

As a senior engineer you will:

  • Take ownership over the existing monitoring tools and observability practices
  • Design and build next-gen platform to provide real-time operational insight to Toast engineering teams
  • Utilize and build on top of best-in-class SaaS tools (DataDog, NewRelic, Splunk) when it makes sense, build it yourself when it doesn't
  • Help define the direction of monitoring systems across our Android devices and cloud-hosted infrastructure
  • Partner with product and engineering teams to promote best practices and provide advice on how to implement features that are instrumented and observable
  • Configure and instrument devices/applications/servers such as Android devices, java based services, & AWS resources to report metrics into monitoring tools
  • Generate, manage, empower and report the application performance data captured by the monitoring tools and proactively work with engineering teams in resolving performance issues
  • Create operational dashboards for both real-time and historical trended views
  • Mentor and evangalize teams on how to use our monitoring tools

Do you have the right ingredients?

  • Experience with designing and implementing monitoring infrastructure at a high-scale SaaS company
  • Solid understanding of systems monitoring, alerting, and analytics (Splunk, Sumologic, New Relic, Dynatrace, DataDog, Librato, Graphite, ELK stack)
  • Proficient in production monitoring concepts including synthetic, real user, application performance, system, log, distributed tracing, and dashboards
  • Some programming experience (we use Python and Java but the language doesn’t matter)

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Technology we use

  • Engineering
    • JavaLanguages
    • JavascriptLanguages
    • jQueryLibraries
    • ReactLibraries
    • AngularjsLibraries
    • ES6Libraries


Toast is headquartered in the heart of Fenway. Catch a Sox game, grab a bite, and stroll through one of the trendiest neighborhoods in Boston.
Toast values candidates with varied backgrounds — and these 3 employees prove it

An Insider's view of Toast

What’s the vibe like in the office?

Our office has both a relaxed but productive vibe. You'll see people with their heads down working, but you'll also see people hanging out and collaborating in open spaces. There's a good balance between work and play. When I'm not heads down coding, you'll find me playing guitar or hanging out in the Toast Pub.

Gabe Gonzalez

Associate Technical Sourcer, Previously: Software Engineer

How has your career grown since starting at the company?

I began as an Implementation Engineer, moved into instructional design, and now I am in my dream role as a Product Manager. This is afforded because Toast fosters a culture where experts in their domains are eager to give you a masterclass in what they do – you only need to ask and be willing to learn. This is the best perk when working at Toast.

Sean Park

Product Manager

What are some things you learned at the company?

Where should I start? For hard skills, I’ve learned more than I ever thought I would about Excel and Salesforce. I’ve also learned what it looks like when a company not only talks the talk, but walks the walk. We’ve been able to execute on what we’ve set out to do because we are willing to try new things, make mistakes, and learn from them.


Payments Relationship Manager

What are Toast Perks + Benefits

Toast Benefits Overview

Toast strives to provide competitive compensation and benefits programs that help to attract, retain and motivate the best and brightest people in our industry. Our total reward package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet our employees’ changing needs.

Volunteer in local community
Partners with Nonprofits
Friends outside of work
Eat lunch together
Intracompany committees
Daily stand up
Open door policy
Team owned deliverables
Team based strategic planning
Group brainstorming sessions
Open office floor plan
Dedicated Diversity/Inclusion Staff
Unconscious bias training
Someone's primary function is managing the company’s diversity and inclusion initiatives
Health Insurance & Wellness Benefits
Flexible Spending Account (FSA)
Disability Insurance
Dental Benefits
Vision Benefits
Health Insurance Benefits
Life Insurance
Wellness Programs
Team workouts
Retirement & Stock Options Benefits
401(K) Matching
Company Equity
Performance Bonus
Child Care & Parental Leave Benefits
Generous Parental Leave
Flexible Work Schedule
Remote Work Program
Family Medical Leave
Company sponsored family events
Vacation & Time Off Benefits
Unlimited Vacation Policy
Paid Volunteer Time
Paid Holidays
Paid Sick Days
Perks & Discounts
Beer on Tap
Casual Dress
Commuter Benefits
Company Outings
Stocked Kitchen
Happy Hours
Recreational Clubs
Fitness Subsidies
Professional Development Benefits
Job Training & Conferences
Diversity Program
Lunch and learns
Cross functional training encouraged
Promote from within
Mentorship program
Time allotted for learning
Online course subscriptions available
Customized development tracks
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