Senior Frontend Engineer - Performance

Los Angeles, CA • New York, NY • Dallas, TX • Phoenix, AZ • Portland, OR Remote Available

Full-time $150,000.00 - $225,000.00

Posted 04/24/2025

Senior Javascript Engineer
Location: 100% REMOTE

Salary: $150k-225k

Requirements: Frontend Engineering, React, Typescript

Founded by one of the Scopely founders (~$5B exit in 2023 with 8 #1 games including MonopolyGo, Scrabble, Yahtzee, and Star Trek), we are a growth-stage Series B startup that's modernizing full-stack observability. We're backed by NEA, YCombinator, Greycroft, the founders of Testflight, Parse, and PagerDuty, and executives from AppDynamics, MoPub, Doordash, and Uber.

We are the evolution of real-user monitoring (RUM) built on OpenTelemetry. Companies like Pinterest, Marriott, Goat, Home Depot, and Cameo use us because NO OTHER observability platforms are purpose built for frontend mobile and web teams while providing devops with the vital information they need to drive proactive & confident decisions. As we continue to grow, we need your help!

We're currently looking for a Javascript Engineer to join our team. You'll be responsible for the design, development, and deployment of frontend apps that consumes billions of data points daily from over 100M devices! If you want to tackle complex problems by building top-tier solutions (with the BEST TECHNOLOGIES and GREAT PEOPLE), then we want to hear from you..

What you'll be doing:

Collaborate with Engineering, Product, and Design teams to develop and implement top-tier web app observability tools for mobile teams.
Provide coaching and support to teammates worldwide on complex technical issues.
Enhance code quality, create test cases, and optimize performance.
Partner with the Customer Success team to gather and integrate customer feedback into technical designs and solutions.
Establish and refine engineering best practices for a rapidly expanding code base used by leading mobile companies globally.

What you need for this position:

6+ years of Javascript
Significant experience with web vitals and website performance
Must have used traces, console logs, etc. for performance analysis and debugging
Must enjoy talking tech with customers and in community talks
SDK/Library development
Opensource development
Git
BSCS or related degree
Experience with OpenTelemetry is a nice to have.

Benefits

Unlimited PTO
Medical, Dental, & Vision Insurance
Parental leave for BOTH parents
Annual company trip :-)
Internet stipend
$500 desk allowance to set up your home office
Opportunities for learning & growth

For this position you must be currently authorized to work in the United States. We do not sponsor for this position.

Additional ways to apply

Preferred Skills

Lauren Formby is recruiting for this position and the positions below.
Email me to apply for this position

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Job ID: LF2-1850474

Employees will receive paid leave to the extent required by state or local law. This job was first posted by CyberCoders on 04/24/2025 and applications will be accepted on an ongoing basis until the position is filled or closed.

CyberCoders, Inc is proud to be an Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, sexual orientation, gender identity or expression, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, status as a crime victim, disability, protected veteran status, or any other characteristic protected by law. CyberCoders will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable state and local law, including but not limited to the Los Angeles County Fair Chance Ordinance, the San Francisco Fair Chance Ordinance, and the California Fair Chance Act. CyberCoders is committed to working with and providing reasonable accommodation to individuals with physical and mental disabilities. If you need special assistance or an accommodation while seeking employment, please contact a member of our Human Resources team to make arrangements.

Your Right to Work – In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.