Ehsan Gazar

Principal Engineer, 500+ mentees, 16 years in production

The architecture skills that get senior engineers promoted. Live, 6 weeks, small cohort.

Cohort 1

Architect LLM and agent systems that survive production: cost, failure, evals, observability.

Cohort 2

Master the decisions that take AI agents from demo to production, and 
  become the engineer your team trusts with anything LLM.

Principal Engineer | AI & System Design

You can wire up an LLM and demo an agent that wows the room. Then it meets production, and everything you weren't taught shows up at once: costs spiral, latency balloons, the model does something confidently wrong in front of a user, and you have no evals to catch it and no traces to debug it. The demo was the easy part.If you're the engineer now expected to ship AI features, that gap is yours to own, and the field moves faster than anyone can teach it. So you improvise, lean on framework tutorials that stop at the happy path, and quietly hope it holds.This intensive teaches the part the tutorials skip: the architecture decisions that make LLM and agent systems survive real traffic, real cost ceilings, and real failure. Where to draw the boundary between code and model. How to bound cost and latency. How to design for non-determinism, evals, observability, and human oversight.You leave with production-grade artifacts you can use at work on Monday: an agent architecture doc, a cost and latency budget, an eval harness plan, and a failure-mode runbook. Not another demo. A system that holds.

Build LLM and agent systems that survive real traffic, cost, and failure.

Draw the right boundary between code and model

Bound cost and latency under real traffic

Design for non-determinism and failure

Choose the right agent architecture

Catch quality regressions with evals

Operate agent systems with confidence

A product or backend engineer suddenly asked to ship LLM features, who can build a demo but hasn't taken one to production before.

A senior or staff engineer responsible for AI systems in production, who wants real rigor around cost, failure, evals, and architecture.

A tech lead or architect evaluating agent patterns for their team, who needs to choose designs that scale and won't break under load.

Go from shaky in design reviews to the engineer everyone trusts to architect the hard stuff

Principal Engineer → Staff Architect

Principal SE. 500+ mentorship sessions. 5.0 rating Systems at scale.

You're a strong engineer. You ship reliable code, you debug fast, your PRs get approved. But when a system design question comes up in an interview, design review, or promotion conversation, something shifts.You know the concepts. You've read the articles. But under pressure, your thinking gets fuzzy. You're not sure where to start. You hedge. You cover too much or miss what matters. And afterwards, you can't always explain why.This is the gap that holds senior engineers back. It's not about intelligence or experience. It is that system design is a skill no one explicitly teaches you on the job. You're expected to absorb it. Most don't.I've worked through this with 500+ engineers. The pattern is always the same. Once someone understands how to structure their thinking, frame constraints, drive trade-offs, and justify decisions out loud, everything changes. Interviews get clearer. Design reviews get easier. Promotions follow.This cohort is six weeks of doing exactly that, live, with feedback. Not theory. Not another article to bookmark. A repeatable way to think that works under pressure, in interviews, on the job, and at the next level.

System design taught by someone who designs systems for a living.

Structure any system design problem confidently

Lead architecture discussions without doubt

Clear the system design interview round

Make trade-offs that hold up to scrutiny

Think at the level your next promotion requires

Build a repeatable design process

Solid coder, shaky on architecture. Keeps getting passed over for staff. Knows something's missing but can't name it.

Strong track record, rusty on design rounds. Needs a structured approach before facing a FAANG or scale-up loop

Not waiting to be promoted. Building staff-level skills now to compress the timeline from L4 to L6.

Prompting Like an Engineer, Not a Wizard

Your First LLM Feature, Beyond the Quickstart

System Design for AI Agents, for Engineers (2026)

Your System Design Answer Is Right But Unconvincing

The ADR That Gets You Promoted

How to Defend Any System Design Decision in 6 Questions

Reach staff with a Principal Engineer in your corner

Ongoing monthly coaching plus async support to get you promoted, built around your real architecture work.

Helping senior engineers think and design like architects.

1:1 Mentorship (1 Month)

Get your design stress-tested by a Principal Engineer

Bring your LLM or agent system. I stress-test the architecture like a staff engineer and send written feedback.

AI Systems Architecture Review

Map your path to staff or principal

One focused hour to map your path to staff or principal and name the exact gaps to close next.

Career Strategy Session

Let's find out if this is a fit

A quick 15-minute call to understand your goals and whether 1:1 work is a fit. No pitch, no pressure.

Ehsan Gazar will make you the architect in the room

Ehsan Gazar

Courses

Production-Ready Systems with LLMs and Agents: An Intensive for Engineers

From Senior to Staff: Master the Architecture Skills That Get You Promoted

Lightning Lessons