Scala Jobs in San Francisco, CA

Amazon Interactive Video Service (Amazon IVS) is AWS's fully managed live streaming service, built on the same battle-tested technology that powers Twitch and trusted by thousands of enterprises across gaming, social, live commerce, sports, and entertainment.

Our mission: enable developers to build communities around live video. We handle everything from ingest to processing to delivery at global scale, so developers can focus on creating interactive, engaging live experiences for their audiences. Whether you're streaming to tens of millions of concurrent viewers or just getting started, Amazon IVS removes the complexity so developers can move fast.

As a Software Dev Engineer III on Amazon IVS’ Real Time Video team, you will design and build the systems that power real-time and sub-second video distribution at massive scale. You will work deep in the stack to ensure low-latency, high-reliability delivery for millions of concurrent viewers. You'll collaborate with a team of engineers who care deeply about performance, correctness, and scale, and you'll have the opportunity to shape the architecture of next-generation streaming infrastructure.



Key job responsibilities
- Design, implement, and optimize high-performance WebRTC distribution components capable of handling millions of concurrent viewers with sub-second latency. Work at the packet level to diagnose, tune, and improve transport behavior across UDP and TCP-based protocols, ensuring optimal video quality and reliability.
- Collaborate with cross-functional teams to define and evolve the architecture of real-time media delivery infrastructure. Drive technical decisions that balance scalability, cost efficiency, and customer experience.
- Contribute to protocol design and implementation for emerging low-latency transport mechanisms, including Media over QUIC (MoQ) and other next-generation streaming protocols. Stay current with industry standards and innovations.
- Identify and resolve performance bottlenecks through profiling, experimentation, and rigorous engineering. Use data-driven approaches to optimize CPU, memory, and network utilization across distributed systems.
- Mentor junior engineers and conduct code reviews to maintain high engineering standards. Participate in on-call rotations to ensure service reliability and rapid incident response. Document architectural decisions and contribute to technical design reviews.

About the team
Amazon Interactive Video Service (Amazon IVS) is a managed live streaming solution from AWS that enables low-latency and real-time video experiences for millions of viewers worldwide. We power engaging live experiences for some of the largest customers in the live video space and continuously push the boundaries of what’s possible with interactive video technology.

BASIC QUALIFICATIONS

- 5+ years of non-internship professional software development experience
- 5+ years of programming with at least one software programming language experience
- 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience as a mentor, tech lead or leading an engineering team
- Knowledge of at least two of the following programming languages: Scala, Java, Python, C/C++, or Go
- Deep understanding of WebRTC architecture, including signaling, ICE, DTLS, SRTP, and media negotiation

PREFERRED QUALIFICATIONS

- 5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Bachelor's degree in computer science or equivalent
- Contributions to open-source networking or media projects

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

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