Twilio's customers send hundreds of millions of communications every day. These events become a firehose of micro-transactions processed at a fraction of a penny at a time. It's critical to external and internal customers that we account for these transactions in a timely and accurate manner. As a shared platform within Twilio, we have a responsibility to ensure that our systems can quickly and easily scale to support new products and use-cases. 

We're seeking engineers with experience managing large scale distributed systems. Our services run in Scala and Python, and we use Spark to process our large-volume data. MySQL and Redis play key roles as our data stores for serving our financial data and coordinating processing in our distributed environment. 

About the Job

As a Senior Site Reliability Engineer, you will be a core contributor on the Real-Time Transactions team and face some of the most complex challenges in distributed data systems at scale.

Responsibilities

  • Maintain a performant and scalable production environment with 24x7 availability and zero downtime deployments in the AWS environment.
  • Instrument and monitor the health and availability of our services, with fault detection, alerting, and recovery (automated and manual).
  • Collaborate with developers to integrate existing services with Twilio's continuous delivery environment and processes.
  • Manage large MySQL and NoSQL database clusters.
  • Write scripts and runbooks to automate procedures.
  • Manage system performance with benchmarking and monitoring of vital metrics, create capacity plans, and work with developers to resolve performance problems.
  • Work closely with Twilio’s cloud infrastructure, orchestration, and security teams to help define company-wide requirements for operability initiatives and tooling.

Requirements

  • Minimum of 5+ years experience building complex distributed systems in the cloud, with a focus on areas such as reliability, high-availability, performance, scalability, capacity planning, backup and recovery, business continuity planning, and automation of everything.
  • Significant development experience in at least one modern scripting language, preferably Python.
  • Experience with managing and automating configuration of MySQL or NoSQL database clusters. 
  • Hands-on experience with cloud infrastructure technologies, including continuous integration and release management tools, configuration management, systems monitoring, and alerting tools.
  • Strong AWS experience in a production environment.
  • Exceptional communication and troubleshooting skills.
  • Experience in agile processes.

Bonus Points

  • Experience developing services in Scala.
  • Experience with technologies such as Spark, Kafka, and S3.
  • Experience with securing distributed systems. You understand the purpose of reasonable security techniques and the tradeoffs with operational efficiency.
  • Adept at administering Linux systems, dealing with networking issues, and fine tuning instrumentation and alerting systems.
  • Experience with managing systems in distributed regions in the cloud or on-site.
  • Experience with auto-scaling of distributed systems.

About Us

Twilio's mission is to fuel the future of communications. Developers and businesses use Twilio to make communications relevant and contextual by embedding messaging, voice and video capabilities directly into their software applications. Founded in 2008, Twilio has over 650 employees, with headquarters in San Francisco and other offices in Bogotá, Dublin, Hong Kong, London, Madrid, Mountain View, Munich, New York City, Singapore and Tallinn.

Twilio is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal opportunity regardless of race, color, ancestry, religion, gender, gender identity, parental or pregnancy status, national origin, sexual orientation, age, citizenship, marital status, disability, or Veteran status and operate in compliance with the San Francisco Fair Chance Ordinance. #LI-POST

Apply for this Job
* Required

File   X
File   X


U.S. Equal Opportunity Employment Information (Completion is voluntary)

Individuals seeking employment at Twilio are considered without regards to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, or sexual orientation. You are being given the opportunity to provide the following information in order to help us comply with federal and state Equal Employment Opportunity/Affirmative Action record keeping, reporting, and other legal requirements.

Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.


Form CC-305

OMB Control Number 1250-0005

Expires 1/31/2020

Voluntary Self-Identification of Disability

Why are you being asked to complete this form?

Because we do business with the government, we must reach out to, hire, and provide equal opportunity to qualified people with disabilities1. To help us measure how well we are doing, we are asking you to tell us if you have a disability or if you ever had a disability. Completing this form is voluntary, but we hope that you will choose to fill it out. If you are applying for a job, any answer you give will be kept private and will not be used against you in any way.

If you already work for us, your answer will not be used against you in any way. Because a person may become disabled at any time, we are required to ask all of our employees to update their information every five years. You may voluntarily self-identify as having a disability on this form without fear of any punishment because you did not identify as having a disability earlier.

How do I know if I have a disability?

You are considered to have a disability if you have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

Disabilities include, but are not limited to:

  • Blindness
  • Deafness
  • Cancer
  • Diabetes
  • Epilepsy
  • Autism
  • Cerebral palsy
  • HIV/AIDS
  • Schizophrenia
  • Muscular dystrophy
  • Bipolar disorder
  • Major depression
  • Multiple sclerosis (MS)
  • Missing limbs or partially missing limbs
  • Post-traumatic stress disorder (PTSD)
  • Obsessive compulsive disorder
  • Impairments requiring the use of a wheelchair
  • Intellectual disability (previously called mental retardation)
Reasonable Accommodation Notice

Federal law requires employers to provide reasonable accommodation to qualified individuals with disabilities. Please tell us if you require a reasonable accommodation to apply for a job or to perform your job. Examples of reasonable accommodation include making a change to the application process or work procedures, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.

1Section 503 of the Rehabilitation Act of 1973, as amended. For more information about this form or the equal employment obligations of Federal contractors, visit the U.S. Department of Labor's Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.


Share this job: