Staff Python Engineer – Open Source Video/voice AI Library

Staff Python Engineer

Stream's SDKs and APIs enable developers to build activity feeds, chat, and voice/video—powering over a billion end users worldwide. Trusted by top brands like Strava, Nextdoor, Patreon, and Adobe, we're on a mission to make real-time communication and social experiences seamless for developers and their users.

We're seeking a Staff Python Engineer to lead the development of our open-source video/voice AI Python library. In this high-impact role, you'll architect, build, and maintain a powerful toolkit for developers integrating voice and video AI into their products. You'll be a key technical leader—shaping the direction of the library, collaborating with cross-functional teams, and engaging with the open-source community.

Location: Office in Amsterdam or Boulder, or remote (preferred EU/US time zones). Occasional travel for in-person collaboration and meetups is encouraged.

What Will You Work On

• Architect, develop, and maintain our open-source video/voice AI Python SDK and library, from API design to performance tuning.
• Ensure the library is well-documented, thoroughly tested, and easy for developers to adopt and extend.
• Drive code quality through robust testing, benchmarking, and automation.
• Contribute to and engage with the open-source community: triage issues, review contributions, and shape the roadmap through feedback.
• Collaborate cross-functionally with product, UX/design, and other engineering teams to align on developer workflows and UX.
• Mentor engineers, establish best practices, and advocate for strong Pythonic design and high engineering standards.

About You

• 5+ years of production-level Python software engineering experience, ideally in SDK development.
• Proven experience building or maintaining open-source libraries or SDKs, with strong community engagement.
• Deep understanding of Python ecosystem tools.
• Track record of leading technical projects and mentoring engineers.
• Excellent communication skills and comfort collaborating across teams (product, design, ML, open-source contributors).

Preferred

• Experience with real-time processing systems, low-latency streaming, or WebRTC.
• Contributions to voice/video open-source projects or AI model repositories.
• Experience with Go (all of Stream's APIs use Go, so it helps when interacting with other teams).

Why You'll Love This Role

• High Impact: Shape a key piece of open-source infrastructure powering voice/video AI for developers worldwide.
• Open Source & Community-Driven: Influence the development of a library used and shaped by global contributors.
• Startup Vibe: Join an ambitious, high-energy team that values excellence, collaboration, and fast-paced iteration.
• Flexibility & Trust: Choose your work style—join us in Amsterdam, Boulder, or work remotely—with periodic in-person collaboration.

What We Have To Offer You

Stream employees enjoy some of the best job benefits in the industry:

• A team of exceptional (and friendly) engineers
• The chance to work on OSS projects
• 28 days paid time off plus paid Dutch holidays
• Company equity
• A pension scheme
• A Learning and Development budget
• Commute expenses to Amsterdam covered or the option to use a company bike within the city
• Fitness stipend
• Monthly in-office chair massages by a professional
• MacBook Pro
• Healthy team lunches and plenty of snacks
• A generous relocation package
• An office in the heart of Amsterdam

Note: This list of job benefits applies to Netherlands-based employees and is adjusted per your location of residence.

Our Culture

Stream has a casual social culture, our team is diverse and we all have different backgrounds. Now, Stream is a team of over 120+ peers from over 35 countries across the globe.

We value transparency, aim for excellence, and support each other on our way to new victories.

Our team consists of the strongest talents worldwide, making Stream a great place to learn and improve your skills.

When it comes to software engineering jobs, our culture is oriented towards ownership and quality: our goal is to deliver stable software.

If you are interested in becoming a part of what we do, apply for this vacancy now!

If you're passionate about Python, AI-powered media, and building tools that developers love and rely on, we'd love to hear from you!

Hybrid office policy: applicants based (or relocating to) one of our office locations are expected to work according to the applicable local office attendance policy.

Equal opportunity employer statement: Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Note for external recruiters: We currently have this role covered and do not accept unsolicited agency resumes. We are not responsible for any fees related to unsolicited resumes.