Your WebRTC is misbehaving, and you need someone who has already seen this fail
Dropped calls you cannot explain. A voice-AI bet you cannot cost. A roadmap decision with no one senior to pressure-test it. I am not selling you a platform and I am not here to write your code. I help you make the call.
- Calls that fail to connect or sound bad, and nobody can say why
- A build-vs-buy decision, or a move to WebRTC, to get right before you build on it
- An independent review with ranked findings. I advise, your team builds
Some of the teams I've helped
You are probably here because
Calls drop and no one can say why. Your team is guessing at getStats(), TURN, and packet loss. You need a read from someone who has debugged this a hundred times.
You are betting the roadmap on voice-AI. Latency budget, pipeline choices, guardrail gaps. Get it wrong and the demo works but production does not.
You need a senior RTC brain, not a hire. You are not ready to add a VP of real-time. You need one in the room for the decisions that matter.
A vendor is telling you what to buy. You want an independent read from someone with no platform to sell and no vendor's roadmap to push.
Ways to work together
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Second opinion / health check
A bounded read of your architecture, observability, and cost, with the risk ranked so you know what to fix first.
Start a health check → -
Transport & media audit
A focused teardown of the layer your product lives or dies on: how media moves, where it breaks, and what it costs at scale.
Scope an audit → -
Fractional RTC leadership
Standing product and tech leadership for real-time: in your decisions, reviews, and hiring, week to week. Capped at 2 clients at a time.
Ask about a slot → -
Deeper work
Voice-AI readiness review, expert witness and litigation support, technical due diligence for investors, and multi-month build advisory.
Talk to me about this → -
Tsahi In Your Corner (monthly advisory)
My standing advisory service, month to month. I am not building, migrating or coding anything. I am inside your decision loop, while the calls that are expensive to reverse are still open: your media architecture, the CPaaS or SFU vendor you build around, self-hosting versus renting.
Timing is everything. Teams tend to bring me in long after the expensive call was made. This puts someone in the thread who has watched that decision go wrong for other teams, while it is still yours to make.
- Async access over email, WhatsApp, Telegram or Slack
- A 60 minute kickoff and a monthly check-in
- A quarterly deep dive on a topic your team picks
- A quarterly briefing for your engineers on what I see across the market
- A note from me each month in between
- Up to 3 people on your side who reach me directly
How an engagement runs
We talk
A call to sync on where you are and align on what you need.
Map the requirements
Your requirements and stated goal, written down so we agree on what done looks like.
Agree and sign
Scope, timeline and price in one proposal. Work starts when it is signed.
Kickoff with stakeholders
One session with the people who own the decision and the people who build.
The work
I work through your stack and your questions, and reach out when something needs a decision.
Deliverables in two rounds
A draft first, then an updated version after your feedback.
What consulting clients say
As we set out to build a mission-critical real-time voice and video platform for public safety, we needed clarity on architecture, scale, reliability, and behavior under real-world conditions. Tsahi gave us a clear strategic framework for how WebRTC should be deployed, managed, and scaled in a high-stakes environment. His guidance helped us refine our architecture, avoid costly mistakes, and move faster.
We had the challenge of building a generative AI application with WebRTC video and audio broadcast. Thanks to our collaboration, we were able to reach the maintainer of the open-source repository and define an in-depth, sustainable solution. What I appreciated most about working with Tsahi is his proactive and informative approach.
Tsahi is like our WebRTC GPS. He doesn't just tell us where to go, he also warns us about the potholes along the way. He's guided us on how to implement things directly in our code - not just high level advice, but actual practical 'this is how you should build it' recommendations. That has saved us from a bunch of debugging marathons.
I have worked with hundreds of consultants across my Wall Street and startup career. I can categorically say that none have provided as much value as Tsahi Levent-Levi. He takes a very direct approach with his clients and is quick to let you know what falls inside and outside of his wheelhouse. Tsahi is also incredibly efficient with his time.
I met Tsahi when I just started out my company. Within a few days I realized he saved me weeks of work thanks to his expertise. It's now been 3 years and we continued to work together even though my team is much bigger.
Good fit, bad fit
Honest about what works. Honest about what doesn't.
Good fit
- You lead engineering on a real-time product, with a team of 5+ engineers past the prototype stage.
- You are weighing a build-vs-buy decision on WebRTC infrastructure.
- You want honest, independent guidance, not a vendor pitch.
Not a good fit
- You need someone to write the code for you. I advise, I don't build.
- Your product is pre-MVP and you need a general-purpose developer.
Questions people ask
Can I get a one-time review instead of a long engagement?
Yes. The two-week health check is built exactly for that: a fixed, bounded read of your real-time stack with no commitment beyond it.
Are you independent, or tied to a vendor?
Independent. I have no platform to sell and no vendor's roadmap to push. That independence is the reason clients bring me in.
Do you work with voice-AI and LLM-based calling?
Yes, from the real-time transport and media side, which is included in the audit. For a deeper standalone voice-AI readiness review, get in touch and we will scope it together.
How do we start?
Schedule a call and tell me the decision you are facing. We will figure out which rung fits, and you leave the first call with a direction whether or not we work together.
Tell me the decision you are facing
One call. I come prepared, you leave with a direction. We decide together if there is a fit.
Schedule a free call →