Remote Senior Web Performance Engineer (SDK)

CyberCoders; San Francisco (CA); Remote; USD 150,000 - 250,000; Full time

Job summary

An innovative SaaS company is seeking a Senior Web Performance Engineer to enhance their open-source SDKs and tackle complex monitoring challenges. This role involves building high-performance tools that provide real-time insights into application health, helping engineering teams optimize frontend and mobile performance. You will collaborate with product teams, debug real-user sessions, and contribute to the OpenTelemetry ecosystem. Join a fast-paced environment where your expertise can significantly impact how developers monitor performance across various industries, including retail and digital media.

Benefits

Comprehensive health, dental, and vision coverage

Flexible PTO and working hours

Collaborative, fast-paced engineering environment

Work with modern tools and real-world performance problems

Qualifications

• 6+ years of software engineering experience required.
• Strong experience with JavaScript and frontend performance techniques.

Responsibilities

• Build and maintain robust, production-ready open-source SDKs.
• Collaborate with teams to improve performance tooling.

Skills

JavaScript

Frontend performance techniques

Web vitals

Tracing and browser debugging tools

SDKs/libraries development

Open-source contributions

Education

BS in Computer Science

Equivalent hands-on experience

Job description

Remote Senior Web Performance Engineer (SDK)

3 days ago Be among the first 25 applicants

This range is provided by CyberCoders. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

$150,000.00/yr - $250,000.00/yr

Location: Remote (USA-based only)
Compensation: $150,000-$250,000 base (DOE)

We're working with a fast-growing, venture-backed SaaS company that's reshaping how engineering teams monitor and optimize frontend and mobile performance. Their platform is purpose-built to give developers and DevOps teams real-time visibility into user sessions, performance bottlenecks, and application health - all powered by modern open standards.

With a seasoned leadership team and backing from top-tier investors, this company is gaining rapid traction across industries like retail, travel, and digital media. Customers rely on them to surface issues traditional observability platforms miss - helping teams move faster and ship with confidence.

We're looking for a Senior Web Performance Engineer to help expand their open-source footprint, build high-performance SDKs, and tackle complex data and monitoring challenges at scale.

What You'll Do

• Build and maintain robust, production-ready open-source SDKs
• Debug real-user sessions using traces, logs, and web vitals
• Collaborate with product and customer teams to improve performance tooling
• Contribute to the OpenTelemetry ecosystem
• Design and optimize systems to handle millions of sessions per day

What We're Looking For

• Strong experience with JavaScript and modern frontend performance techniques
• Deep understanding of web vitals, tracing, and browser debugging tools
• Experience building or maintaining SDKs/libraries used by developers
• Open-source contributions or community engagement is a plus
• 6+ years of professional software engineering experience
• BS in Computer Science or equivalent hands-on experience

Perks & Benefits

• $150K-$250K base salary (depending on experience)
• 100% remote work (U.S. only)
• Comprehensive health, dental, and vision coverage
• Flexible PTO and working hours
• Collaborative, fast-paced engineering environment
• Work with modern tools and real-world performance problems

If you're passionate about frontend performance, developer experience, and observability - and want to help build tools engineers actually love - we'd love to hear from you.

Email Your Resume In Word To [e-mail]

Please do NOT change the email subject line in any way. You must keep the JobID: linkedin : TM4-1848332 -- in the email subject line for your application to be considered.

Taylor McAlister - Sr. Executive Recruiter

For this position, you must be currently authorized to work in the United States without the need for sponsorship for a non-immigrant visa.

CyberCoders 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.

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Information Technology

Industries

Computer Hardware Manufacturing