Real, live private-sector job listings — taken straight from the employers' own career pages
Mux · Remote / flexible (United States) · posted 35 days ago
By AtiveSite · Published 07/11/2026 · Updated 10/11/2026 · Every figure is linked to its source below.
| Employer | Mux |
|---|---|
| Location | Remote / flexible (United States) |
| Field | Technology › Software engineering |
| Level | not stated |
| Source category | Engineering , Engineering |
| Posted | 2026-10-06 (35 days ago) |
| Work arrangement | A remote or flexible location is listed |
| Pay | Not published in the source listing |
Mux is video for developers and their agents. We handle the hard problems of video, like encoding, streaming, delivery, and monitoring, along with the hard problem of understanding it: turning raw footage into context, structure, and answers. Video is a huge part of people’s lives, and we want to help make it not just playable, but understandable.
We’re committed to building a healthy team that welcomes a diverse range of backgrounds and experiences. We want people who care about our mission, are ready to grow, believe in our values (from Be Human to Turn Customers Into Fans), and want to make the people around them better.
You’ll be joining a tight-knit team with experience at places like Google, YouTube, Twitch, Zencoder, Fastly, and more. Our founders previously started (and sold) Zencoder, an early leader in cloud video technology, and authored Video.js, the biggest HTML5 video player on the web. We organize Demuxed, the premiere conference for video engineers in the world.
We’re backed by top investors like Coatue, Accel, Andreessen Horowitz, and Y Combinator. You’ll get to work with amazing companies: hundreds of startups, plus Patreon, Substack, Synthesia, and HubSpot. Customers large and small love working with us and love our team.
We are building something big together. We’d love to hear from you!
About the Role
As a Senior Full Stack Engineer at Mux, you will build and manage scalable and highly available applications and services that can reliably support our products' feature development and growing traffic. The Platform Experience team is focused on providing a consistent, effective platform experience for customers. You will work on ensuring our customer-facing platform is resilient and will also be writing new application code to support product features. We’re looking for engineers that love both systems and application-level challenges across various teams, who will take on strong ownership of critical product infrastructure, and enjoy being part of an inclusive and creative Engineering team.
What You'll Do
Work with your team to collaborate and execute on product goals and technical roadmap.
Develop user-facing, product-focused features in our Elixir and Go backend services and our React frontend.
Building and scaling our billing and usage platform that supports all Mux products.
Working on identity and account management product features.
Working on distributed notifications such as application webhooks and alerting features.
Who You Are
We are hiring senior level software engineers (6+ years of experience).
You’re a strong engineer comfortable working across multiple platforms and environments.
Solid engineering fundamentals (CS degree a plus).
Track record of working on hard problems including job scheduling, concurrency, and scaling.
Experience in JavaScript/TypeScript and React.
Experience building REST APIs that people enjoy using. Elixir experience is a big plus, but Go, Python, Ruby, Node, or other general-purpose programming languages are also great.
Experience deploying complex applications on cloud platforms using a container orchestration platform, such as Kubernetes.
Experience working with SQL databases. ClickHouse experience is a plus.
You enjoy fast-paced, highly collaborative environments and working across many different areas.
Video experience is a plus but not required.
We have a supportive culture that cares about both excellent work and work-life balance. We have office spaces in Downtown San Francisco, New York City, and London
Flexible vacation + 11 company holidays
Weekly no-meeting days + quarterly focus weeks
Competitive health, dental, and vision insurance, including fertility
FSA and HSA available
Short-term and long-term disability insurance
Group life insurance
Travel accident insurance
401(k)
Paid parental leave
Professional Development program
Lunch, internet, & ancillary equipment reimbursements
Competitive annual leave policy (25 days annual leave plus 8 public holidays)
Weekly no-meeting days + quarterly focus weeks
Private medical and dental insurance, and a vision stipend, including fertility
Short-term and long-term disability insurance
Group life assurance
Travel accident insurance
Matched Pension
Paid parental leave
Professional development program
Team social events
Lunch, cafe, & ancillary equipment reimbursements
Mux is an Equal Opportunity employer committed to building a diverse company. We believe diversity makes us better, and we strive to be inclusive and equitable. That’s why we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status or disability status.
Field: Technology Sub-niche: Software engineering All jobs at Mux
View this job and apply on the employer's page →
You apply on the employer's page; AtiveSite does not receive or process applications and is not affiliated with the employer. The description above is shown as the source published it.
This is a — role in the Technology field (Software engineering) at Mux.
We could not match this job title to one occupation in the official wage statistics, so no pay estimate is shown. Pay is not in the source listing; ask the employer for the range and compare in the 240 job niches.
This is editorial guidance, not information from the employer.
Know your rights as a candidate and an employee:
The listing is remote or has no US state we could identify. Read the country guide for pay, taxes, law and cost of living by state.
The job city has no coordinates we can place on the map, so no housing comparison is shown. Use the 250 largest cities table to compare rent and income.
We could not match this title to one occupation, so here are the other sub-niches in Technology, where your skills may carry over:
Cybersecurity (762) Data, analytics and AI (3719) Cloud, IT and infrastructure (1147) Product management (927)
This job has no single city we can place on the map (remote, flexible or unmatched location), so no distance table is shown. Browse all Technology jobs with distances from any of the 20 largest cities.
Mux is the employer in this listing. See all its open jobs here →
We do not hold headcount or revenue for this employer. Check its careers site and, if it is listed on a stock exchange, its public filings (SEC EDGAR search).
What it is like to work at a company (culture, schedules, benefits) is not in the source data, so we do not describe it. Read the description and ask the questions under "How to prepare".
Mux · Remote / flexible (United States) · Data, analytics and AI · posted 7 days ago
SpaceX · Hawthorne, CA · Software engineering · posted 2 days ago
SpaceX · Bastrop, TX · Software engineering · posted 2 days ago
SpaceX · Bastrop, TX · Software engineering · posted 2 days ago
SpaceX · Starbase, TX · Software engineering · posted 2 days ago
SpaceX · Hawthorne, CA · Software engineering · posted 2 days ago
Uber · San Francisco, CA · Mid Level · Software engineering · posted 3 days ago
Uber · San Francisco, CA · Mid Level · Software engineering · posted 3 days ago
All Software engineering jobs → · All Technology sub-niches →
A private-sector role in technology (software engineering) listed 35 days ago. The full description is on this page and on the employer's page.
Remote / flexible (United States). A remote or flexible location is listed; confirm with the employer which states are accepted.
Use the "View this job and apply on the employer's page" button. AtiveSite does not receive applications.
The listing does not publish pay, and we could not match the title to one official occupation.
See the state or country guide for rent, income and taxes.
It was posted on 2026-10-06 (35 days ago). Jobs older than 90 days are not shown.
Yes: browse software engineering jobs in the United States.
AtiveSite is not affiliated with or endorsed by the employer or any government agency, and does not process applications. Verify every detail with the employer before acting.