AI Architect, Agentic platform

This is us 

Kaltura (NYSE: KLTR) is a global software company on a mission to transform digital experiences from one-way interactions into intelligent, personalized conversations that move people forward.

Founded in 2006, we started by making video more accessible to organizations around the world. Today, we’re taking that foundation much further, combining conversational AI, rich media, enterprise knowledge, and data to build a new generation of intelligent digital experiences.

Our technology helps organizations turn their content and knowledge into interactive, AI-powered experiences that can guide customers, train employees, support learners, and engage audiences in real time. From AI agents and personalized learning experiences to digital events, content hubs, and media platforms, we’re changing how people interact with technology, and what technology can do for them.

More than 1,000 organizations worldwide rely on Kaltura, reaching over 100 million users at home, at work, and at school.

And the people behind it? We’re a global team of 600+ employees, with offices in New York, London, Singapore, and Tel Aviv, united by a culture of openness, flexibility, and collaboration. Kaltura is a fast-paced environment where ideas are welcome, initiative is encouraged, and there’s always something new to build, challenge, or improve. We believe in giving people the freedom to make an impact, the flexibility to balance work and life, and the opportunity to grow as we continue to evolve.

If you don’t meet 100% of the requirements below, that’s okay. Nobody’s perfect! We believe in hiring people, not just a list of skills. If this sounds like a place where you’d be excited to learn, contribute, and make an impact, we’d love to hear from you.

The Role 

You own the end-to-end architecture of the agentic platform: how speech, avatar generation, and the agentic reasoning layer combine into one coherent system that holds up in production, across many tenants, under a real-time latency budget. 

This is the widest technical seat in the group. A single user turn crosses speech recognition, retrieval, planning and tool calling, speech synthesis, and avatar rendering, and the experience is only as good as the seams between them. The scope here is the whole path, including the parts we did not build ourselves: externally sourced capabilities, third-party model providers, and customer-owned systems reached through the gateway. 

Some of the decisions here shape the platform for a long time: how the speech pipeline is composed, which real-time orchestration and transport framework the platform standardizes on, how new capabilities are absorbed into the target architecture, and where a shared component belongs versus a per-customer one. You define the criteria these decisions are judged against and work closely with the research team that benchmarks the options, so the call rests on evidence. You write the reasoning down, and you stay close enough to the code to know when reality disagrees with the design. 

You are hands-on. You prototype to de-risk, you read the traces yourself, and you stay as close to the numbers as to the diagram. 

What You’ll Do 

Own the end-to-end system architecture across the real-time conversational path and the offline video path, defining the interfaces and boundaries between the speech, avatar, and agentic layers. 

Drive the decisions that set platform direction, including speech pipeline composition, real-time orchestration and transport frameworks, model routing, and build-versus-adopt calls. You frame the criteria and the trade-offs, partner with the research team on the benchmarks that test them, and own the resulting call. 

Lead the architecture for absorbing new capabilities, whether built, adopted, or acquired, and define the converged target architecture. 

Architect for latency and cost as first-class constraints, owning the end-to-end latency budget, the cost-per-outcome model, and how the system degrades when a component stalls or fails. 

Design the long-term memory architecture and the privacy model behind it: consent, retention, erasure, and residency. 

Define cross-platform interfaces and engineering standards that let the foundation team and the FDE pods move independently, including the registry contract, hooks, and the governed path for customer-owned components. 

Set the technical governance model for how capabilities are evaluated, promoted, versioned, and retired, with evaluation and tracing designed in rather than added afterward. 

Prototype and de-risk future capabilities through focused technical spikes, turning results into clear recommendations. 

Partner across the group and the company, from the research, platform, and FDE teams to product, and represent the architecture credibly to executives and customers. 

Ideally, we’re looking for:

• B.Sc. in Computer Science (or equivalent technical field), mandatory. 
• 12+ years of industry experience, including 5+ years as a principal, staff, or lead architect owning system-level design for a production platform. 
• Proven track record architecting distributed, multi-tenant production systems at scale, with real accountability for latency, cost, and reliability. 
• Strong cloud experience, designing and running production systems on a major cloud platform. 
• Deep hands-on experience with agentic systems and LLMs, including orchestration, tool calling, interoperability standards such as MCP, retrieval, and how these systems fail in production. 
• Real-time systems experience: streaming transport, latency budgeting, and graceful degradation under load. 
• Strong Python skills. You still write code and read other people’s code closely. 
• Hands-on experience with evaluation, tracing, and observability for AI systems, and using what they show to drive architectural change. 

Nice to have:

• Experience with speech technologies: ASR, TTS, or speech-to-speech, including streaming architectures. 
• Experience with generative video, avatar generation, or diffusion and flow-matching model families. 
• Experience with real-time media frameworks. 
• Experience with enterprise governance and compliance requirements. 
• Experience with multilingual systems. 
• M.Sc. or Ph.D. in Computer Science, Machine Learning, or a related field. 

The perks:

1. Hybrid, flexible work environment  
2. Extended private health (including mental) insurance  
3. Personal and professional development programs 
4. Occasional Cross company long weekends