Pratica di Shadowing: What Does an AI Engineer Do Now? - Aparna Dhinakaran, Arize AI - Impara a parlare inglese con i video
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Awesome.
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Well, welcome to AI Engineer.
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I thought given we're at AI Engineer New York, we'd kind of revisit the question of what does an AI engineer do?
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I feel like every year we have an idea of what an AI engineer does, and that definition kind of changes.
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And as I was putting this talk together, it was super timely,
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because Karpathy actually just tweeted something this weekend where he kind of talks about this growing gap between
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basically folks at the frontier who are running thousands of agents and swarms of always -on on agents,
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and he really kind of drops this funnel where six billion plus users have maybe touched or interfaced with an LLM.
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One to two billion are maybe like casual free tier users.
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20 million are professionals who have maybe started using it for more, taking some piece of work that would have taken weeks down to days.
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But really, those at the Frontier Labs are, which is a super small percentage, it's like 5 ,000 users,
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are the ones who are running thousands and thousands of agents at once.
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And as I look at this, it really is, I mean, he's kind of dropped a bit of the funnel.
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I mean, the first question anyone looks at this is that, where am I on this?
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And, you know, he's kind of drawn out a bit of a roadmap of how does everyone get to, in the next couple of years,
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one of those 5 ,000 users who are running thousands of agents.
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And this has been happening, I'd say, for a couple of decades now, where the abstraction layer has gotten higher and higher.
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I mean, definitely faster in the last couple of years, but we've gone from engineers writing higher -level abstraction languages to,
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I mean, just copy -pasting code, using local agents, to using cloud agents,
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to really the expectation now is how do all of us start running a team of agents?
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or factories of agents internally and build toward that.
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And what this has led to is essentially what is the then and now of what an AI engineer is.
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And this is a bit, I think, of a roadmap for some,
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but I think internally this is what we've already started to kind of push towards.
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As an AI engineer, your job is no longer to just write the feature, write an AI feature.
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It's about how do you build the loop to write that feature.
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It's no longer about just reading the diff and actually doing code review.
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It's actually how do you set up systems and agents to do the code reviews,
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and how do you write evals to actually do the non -deterministic, to review those non -deterministic tasks.
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It's actually no longer even about just setting up metrics and software kind of telemetry, but it's actually how do you have agents go through
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and read the observability data and and have agents actually consume that telemetry to find patterns.
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And so this loop that we've kind of been talking about, which is the build, the eval, ship, you monitor, you improve it,
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well, the AI engineer is now actually responsible, not just for doing each of those steps,
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but how do you build the loop that actually does each of those steps?
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And at Arise, one of the things we've rolled out in our product,
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and I'm gonna talk about a bit of what we've learned in building this, is we built
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Signal to actually run this loop for AI engineers.
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What Signal does is that
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Signal actually looks at all of the traces, it reads the telemetry, it identifies patterns in that telemetry,
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and it can actually put up a fix or a PR if it has access to the repo.
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And Signal, Signal's an always -on agent.
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So this is an example of how
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Signal starts, but it actually starts off by just reading the traces.
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Super simple example, but it goes through, reads, and all this is configurable,
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but a certain volume of traces that came in in some cadence,
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it reads it, and then the goal is to actually identify issues from that telemetry data.
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It has to keep track of issues that it's previously seen.
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So we have to consider the memory of did it see something before
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that it thought was an issue? did something seem like an issue
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but it wasn't actually captured
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and now as it collects more data it actually thinks it's much more of a critical critical issue
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and so signal actually starts off by reading the traces to identify problems
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and so one of the first things that that we realized was
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that the future of who's actually consuming telemetry data has really changed
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It's no longer about humans consuming telemetry data.
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It's not even about humans consuming it and agents kind of taking on the task,
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but it really is how do you set up your telemetry data so that agents are the primary consumers of that data?
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And what that does is that that observability data can become the trigger for actually running and triggering these always -on agents.
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And so the first thing that if you're building a team of, of a factory of really always on agents is,
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what triggers these agents to wake up or start?
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And there can be a variety of triggers.
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For signal, for us, it's configurable to run on an ongoing cadence.
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So every three hours, six hours, go pull the last X amount of traces, read them, identify problems.
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It can also be triggered by events.
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So Slack messages, and some user complains about something.
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It can be a metric -based trigger, but these are essentially triggers to kick up the agent actually starting.
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Once the agent actually starts, we have to spend some time figuring out, well, what does an agent run actually look like?
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For us, we actually pull in all of the context of the traces, any additional third -party data,
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so we allow collecting to APM logs, APM metrics, but all of the third -party telemetry data that we want to pull in,
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access to the repo, access to the actual,
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the access to any keys that are needed to actually run this agent,
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but all of this information is put inside of a sandbox, and this is actually what's started up every time the agent wakes up.
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And so the agent's triggered, we build a sandbox, We put everything that we need inside of that sandbox.
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There's a proxy.
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The only way to get information in and out of the sandbox is by the single proxy.
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And everything that happens inside of that sandbox is actually already getting traced.
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And every output, so the issues that are generated and created are all getting saved to some kind of memory.
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And so this happens every single time the agent actually runs.
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Every time the agent finishes running, so it's sweep through all of the traces, it either found something or it didn't.
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There's what actually stays and what actually gets thrown away.
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What stays is that if it found any issues, all of the output is actually saved off in some kind of memory
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so that the next time an agent gets spun up, it doesn't have to start from ground zero.
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It has a history of what are the issues that it actually found.
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The agents are traced.
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So all of the telemetry data of what the agent called, you know, if it actually put up a PR,
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all of those things are actually traced.
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And any skills that it may have learned while actually doing a run can also get saved to the actual repo.
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But the things that go away is the sandbox gets torn down.
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Any credentials, you know, obviously get removed.
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The repo access is removed and so all of the stuff
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that doesn't need to be saved kind of gets torn down after the run of Signal. And we've designed
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Signal in a way to actually keep this agent durable.
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So that means that either if the sandbox fails or if the harness fails,
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then it shouldn't have to start everything from scratch in the middle of the run.
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It should actually just be able to pick up from the step
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that it failed and all of the state
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so -called is kind of saved off in kind of a memory outside of the sandbox.
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And so we've designed this to actually be a very durable agent so that if it fails, it can spin it back up.
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You can launch a new sandbox, launch a new harness to kind of pick back up where it started.
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So all of this is essentially the underpinnings of how we built signal to run every single run.
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Agent gets triggered, agent gets started, loaded with all the context, the evidence, it sweeps through the telemetry data, it either finds something or it doesn't,
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all of that gets saved to memory.
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If something fails in the middle, the agent can get reset up.
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And we built
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Signal to also be agnostic of the model or the harness.
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So today, Signal supports not just cloud code, which is what we started with, but it also supports cursor and codecs,
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and the goal is to actually support all of the major, even the open source harnesses out there.
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And Signal actually also supports multiple, will support kind of multiple models.
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So even if you're using cloud code, you can pick any of the models inside the anthropic family.
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And this is really important to us because,
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one, it's.. an awesome way for us to evaluate the quality of the agent every time we spin it up.
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It helps us control costs so we can see as we use more powerful models the better quality maybe the PRs are,
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but can we reduce the quality of the, can we reduce the cost and actually still maintain the rigor
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and maintain the quality of issues that are actually detected by signal?
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So this is something we deeply thought about from first principles when we were designing signal.
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And this is actually a pretty good segue into what does an AI engineer need to do.
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Well, an AI engineer really needs to kind of learn how to write evals.
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And so we actually, every time signal runs, signal finds an issue, it puts up a PR.
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Well, there's evals that are run on top of the agent to test that PR.
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And an eval can be as simple as testing something as part of your development workflow, you have a data set,
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you can be a simple prompt with outputs that you're testing to make sure that there's no regressions.
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But these evals can also, they need to be kind of aligned with human judgment.
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And I'd argue
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that this is actually probably where an AI engineer should be
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spending a lot of their time as they're building the system to actually run the loop.
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They should be actually spending time looking at the traces with their agents, identifying what the common errors are.
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And there's a lot of skills.
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I think I was hearing
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Lance yesterday talk about the Claude skill to build evals.
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We have a skill with Arise Evaluator to actually help you build and write evals, as well as align those evals with the human judgment.
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but this is probably where the shift to defining what is good becomes really, really important for an AI engineer to actually do.
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And for a lot of teams I think we speak with and we work with, their question becomes, well, how do I trust the evaluator?
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And do I really trust that the eval is going to catch
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or how do I trust that it's as good as my judgment?
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And I'd say what we spend a lot of our own time doing for our own products is
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that we actually evaluate the evaluators.
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We spend a decent amount of time on actually building these data sets, golden fruit data sets.
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We run evals, verify them against the human output, and then try to align to make sure
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that the judge actually agrees with the human and they're in agreement before we actually ship out a new evaluator.
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And these evals can then be used both in an offline testing as well as in an online testing manner.
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And this is probably what I would say as an AI engineer is more and more of what the job is becoming.
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And so what I'm going to leave you guys with is as an AI engineer, you've built this agent.
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You've built this agent to actually run, be always on you run evals before you actually ship it into production.
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You can ship it, and then once it goes into production, the goal is to actually trace everything.
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And tracing everything now means not just tracing the agents, but also tracing the coding agents behind the agents that built this.
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So you can trace cloud code, you can trace cursor, you can trace codecs, but all these coding agents can be traced
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so you can understand what happened in the factory of agents that you all are building.
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And then these agents that all the traces can then also be evaluated online.
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So there's an offline evaluation when you're actually testing what a new change is,
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but as it goes into production these become your online evals that you're running on top of the telemetry data.
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This for us ends up becoming the new data that then gets pulled back into the agents to read the telemetry data,
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the evals, and surface up kind of problems inside of the traces.
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So the system really becomes, how do you go from collect data, eval that data,
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run agents on top of it so that you can find problems
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and figure out where the gaps are to actually improve your systems?
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So if I go back to kind of the question that we started this whole thing with, It's what does an AI engineer do?
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I mean the gap between,
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I think there's a pretty big gap between what's happening in the labs today and what's happening with a lot of businesses.
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And some of it could just be the data inside of
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businesses are a lot more messy than what is very constrained and testable inside of a lab.
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But AI engineers are kind of the role to close that gap.
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And I think it really starts with tracing everything, tracing the agents you're actually building.
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running evals, being able to learn how to test these products that we're really building, and then how do you build a system so
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that agents can actually improve from the telemetry that's actually being collected so that you're no longer just building individual features,
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but you're actually building the system to improve your products.
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If you want to learn more, come check out.
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We have a booth.
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You can check out
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Signal, learn more.
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But thank you so much for listening to us.
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Thank you.
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Vocabolario e note di pronuncia per questa lezione
Questa lezione di conversazione si basa sul video “What Does an AI Engineer Do Now? - Aparna Dhinakaran, Arize AI”. Le parole che ritornano più spesso: agent, signal, eval, engineer, telemetry. Questo video contiene 171 frasi e 2536 parole da ripetere con lo shadowing. Il parlato dura 15:12. Chi parla ha un ritmo naturale di circa 167 parole al minuto, vicino a una conversazione quotidiana. Il 86% delle parole rientra nelle 3.000 più comuni dell’inglese; conviene studiare le altre prima di iniziare.
Vocaboli chiave di questo video
15 parole del video che vale la pena imparare, con pronuncia e significato:
| Parola | Pronuncia | Significato |
|---|---|---|
| trace sostantivo | /tɹeɪs/ | orma |
| trigger sostantivo | /ˈtɹɪɡɚ/ | grilletto |
| evaluate verbo | /ɪˈvaljʊeɪt/ | valutare |
| loop sostantivo | /luːp/ | cappio |
| evaluation sostantivo | /ɪˌvæljuˈeɪʃn̩/ | valutazione |
| cloud sostantivo | /ˈklaʊ̯d/ | nuvola, nube |
| output sostantivo | /ˈaʊtpʊt/ | risultato, produzione |
| skill sostantivo | /skɪl/ | abilità, capacità |
| collect verbo | /ˈkɑlɪkt/ | raccogliere, bottinare |
| consume verbo | /kənˈsum/ | consumare |
| harness verbo | /ˈhɑɹ.nəs/ | imbracare, imbragare |
| essentially avverbio | /ɪˈsɛnʃəli/ | in essenza |
| spin verbo | /spɪn/ | girare, far girare |
| judgment sostantivo | /ˈd͡ʒʌd͡ʒ.mənt/ | giudizio |
| metric aggettivo | /ˈmɛt.ɹɪk/ | metrico |
I phrasal verb che sentirai
| Parola | Pronuncia | Significato |
|---|---|---|
| put up verbo | collocare | |
| set up verbo | /ˌsɛt ˈʌp/ | preparare, installare |
| check out verbo | investigare | |
| figure out verbo | scoprire, rendersi conto | |
| go through verbo | attraversare | |
| wake up verbo | /ˌweɪk ˈʌp/ | svegliarsi |
| draw out verbo | prolungare | |
| end up verbo | andare a finire, finire |
La grammatica di questo video
Le strutture che chi parla usa di più, con le parole esatte del video:
| Struttura | Nel video |
|---|---|
| Present perfect have/has + participio passato — un’azione passata che conta ancora adesso | has gotten · we've gone · has led |
| Forma passiva be + participio passato — conta ciò che accade, non chi lo fa | wasn't actually captured · be triggered · are needed |
| Frasi relative who / which + frase — un’informazione in più su una persona o una cosa | are, which is · ones who are · about, which is |
Pronuncia a cui fare attenzione
Chi parla usa 34 contrazioni e forme ridotte, come you're, we've, doesn't. Pronunciale nella forma breve, così come le senti.
- I suoni “th”: booth /buθ/, anthropic /ænˈθɹɒp.ɪk/
- I suoni “sh” e “zh”: evaluation /ɪˌvæljuˈeɪʃn̩/, essentially /ɪˈsɛnʃəli/, capture /ˈkæp.(t)ʃɚ/, casual /ˈkæʒ(u)əl/, expectation /ˌɛk.spɛkˈteɪ.ʃən/
- Parole lunghe — attenzione all’accento: evaluation /ɪˌvæljuˈeɪʃn̩/, essentially /ɪˈsɛnʃəli/, internally /ɪnˈtɜːnəli/, expectation /ˌɛk.spɛkˈteɪ.ʃən/, telemetry /tɪˈlɛm.ɪ.tɹi/
I suoni difficili per chi parla italiano:
- Consonante finale — senza aggiungere una vocale dopo: trace /tɹeɪs/, evaluate /ɪˈvaljʊeɪt/, loop /luːp/, cloud /ˈklaʊ̯d/, output /ˈaʊtpʊt/
- /æ/ — più aperta della “e”: evaluation /ɪˌvæljuˈeɪʃn̩/, lab /læːb/, gap /ɡæp/, capture /ˈkæp.(t)ʃɚ/, casual /ˈkæʒ(u)əl/
Come esercitarsi con questo video
- Ascolta tutto il video una volta senza parlare e annota le parole che non conosci.
- Inizia a velocità 0,75×, fai shadowing frase per frase e torna alla velocità normale quando diventa facile.
- Registrati e confronta con l’originale, facendo attenzione a parole come trace, trigger, evaluate.
Cos'è la tecnica dello Shadowing?
Shadowing è una tecnica di apprendimento delle lingue supportata da studi scientifici, originariamente sviluppata per la formazione dei traduttori professionisti e resa popolare dal poliglotta Dr. Alexander Arguelles. Il metodo è semplice ma potente: ascolti un audio in inglese di madrelingua e lo ripeti immediatamente ad alta voce — come un'ombra che segue il parlante con un ritardo di solo 1–2 secondi. A differenza dell'ascolto passivo o degli esercizi di grammatica, lo shadowing costringe il tuo cervello e i muscoli della bocca a elaborare e riprodurre simultaneamente i modelli di discorso reale. La ricerca dimostra che migliora significativamente la precisione della pronuncia, l'intonazione, il ritmo, il discorso connesso, la comprensione dell'ascolto e la fluidità del parlato — rendendolo uno dei metodi più efficaci per la preparazione alla prova di speaking dell'IELTS e per la comunicazione reale in inglese.