Full FDE access.

Learn with courses and video lessons. Practise in hands-on labs, then prepare for your interview with worked answers and downloadable guides.

PREMIUM

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6 months · One payment · No auto-renewal

No card details stored · Access tied to your Google account

All sales final · No refunds. Preview the material before paying ↓

Included with Premium

All 210 video lessons

INCLUDED WITH PREMIUM

24h 13m of video · 100 full course lessons

Follow the courses on screen and revisit concepts with animated explainers and worked answers. Premium includes the videos inside Premium lessons; videos on free pages remain free.

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Everything above in one purchase. New material added during your six months is included.

See everything included

  • All 30 FDE Lab missions across 8 tracks, including challenges and timed incidents
  • Every answer across all topics, ordered easy to hard
  • The full concept curriculum, all 180 explainers
  • The courses, all 169 lessons, start to finish
  • All 210 published video lessons, including videos within Premium courses
  • The full practice-test bank, including medium, hard and adaptive tests
  • Work-sample downloads with fixtures, graders and reference solutions
  • Working code, diagrams, and tables in the written material
  • Interviewer follow-ups and the traps that fail candidates
  • Mastery tracking across the full bank, showing what to study next
  • New material added throughout your 6 months
  • The Forward Deployed Engineer Field Guide, available now as a downloadable PDF
  • The Forward Deployed Engineer Take-Home Playbook: ten graded projects, worked solutions and the solutions download
  • The Forward Deployed Engineer Case Rounds: eight worked decompositions, six customer conversations and the practice kit
  • Systems Engineering for FDEs: 96 pages, four customer engagements and nine executable lab tracks
  • The Agentic System Design Round: ten worked customer designs, failure paths and a verification companion
  • The Forward Deployed Engineer Interview Book, free on release in November 2026
  • Discussion, voting, bookmarks, and progress tracking

Every answer, concept and course, every paper breakdown, all published video lessons, hands-on FDE Lab missions, Premium PDF guides and companion files, the full practice-test bank and work-sample downloads. Referral Premium excludes guide PDFs and their companion files.

Study alongside free video lessons.

Preview the material

Read a free lesson or inspect pages from a guide. These previews are open without an account.

Try the problem / Work sample 01

The reply arrives. Most of it disappears.

The server sends a reply in pieces. Step through them and watch what a reader loses when each piece replaces the previous text.

  • 01 · received
    Your order
  • 02 · received
    has shipped.
  • 03 · pending
    It arrives
  • 04 · pending
    on Friday.

The broken client

has shipped.

Only the latest piece remains.

What the reader needs

Your order has shipped.

Keep the text received so far.

Chunk 2 of 4. The expected client retains all 2 pieces.

In the full exercise, repair the client and test split characters, overlapping replies and dropped connections against a local HTTP server. Premium includes the exercise files and a separate written reference walkthrough.

Read the project brief →

Explore the 5 included courses

Open a course outline to see its modules. Premium includes every lesson.

Foundations of Forward Deployed Engineering11 modules · 35 lessons

  • The role (3 lessons)
  • Discovery (4 lessons)
  • Reading systems (3 lessons)
  • Code that survives in someone else's system (3 lessons)
  • Data that fights back (4 lessons)
  • Modelling their world (3 lessons)
  • The proof of concept (3 lessons)
  • Your first AI feature (4 lessons)
  • Operating what you shipped (3 lessons)
  • Saying it (3 lessons)
  • Capstone (2 lessons)

Free lesson · 25 min · No sign-in needed

Connect a software capability to a working customer workflow →

See the full syllabus →

The FDE Engagement11 modules · 35 lessons

  • Technical discovery (3 lessons)
  • Enterprise integration (3 lessons)
  • A model of their world (4 lessons)
  • Deploying in their environment (4 lessons)
  • The security review (3 lessons)
  • The model in production (3 lessons)
  • When the answer is a model (3 lessons)
  • Agents with authority (4 lessons)
  • Proving it was worth it (4 lessons)
  • The craft around the work (3 lessons)
  • Capstone (1 lessons)

Free lesson · 20 min · No sign-in needed

Use the sales call to establish what you can actually deliver →

See the full syllabus →

Production AI Agents for FDEs6 modules · 19 lessons

  • Contract and baseline (3 lessons)
  • Evidence and context (3 lessons)
  • Tools and authority (3 lessons)
  • Durable actions (3 lessons)
  • Evaluation and improvement (4 lessons)
  • Release and ownership (3 lessons)

Free lesson · 18 min · No sign-in needed

Build a support agent around one permitted outcome →

See the full syllabus →

Harness Engineering for FDEs10 modules · 44 lessons

  • Choose the work and its proof (5 lessons)
  • Make the workspace inspectable (4 lessons)
  • Constrain every action (4 lessons)
  • Keep evidence usable (4 lessons)
  • Resume from durable facts (4 lessons)
  • Verify the customer outcome (4 lessons)
  • Keep autonomous work bounded (4 lessons)
  • Coordinate dependent work (5 lessons)
  • Study four runtime designs (4 lessons)
  • Adapt and operate the harness (6 lessons)

Free lesson · 18 min · No sign-in needed

A harness turns a model proposal into accountable work →

See the full syllabus →

Hard Deployments10 modules · 36 lessons

  • Serving on hardware you did not choose (5 lessons)
  • The air gap (3 lessons)
  • One platform, many customers (4 lessons)
  • Cost and latency across a portfolio (3 lessons)
  • Autonomy over long horizons (3 lessons)
  • Rescue engineering (4 lessons)
  • Reliability across a portfolio (3 lessons)
  • Extracting a platform from field code (3 lessons)
  • The practice (7 lessons)
  • Capstone (1 lessons)

Free lesson · 30 min · No sign-in needed

Budget weights, resident cache and runtime memory in consistent units →

See the full syllabus →

Read sample pages from the guides

The samples are public. Paid Premium includes the complete PDFs and companion files.

Explore all guides →

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Questions about access and payment

Every answer, concept and course, every paper breakdown, all published video lessons, hands-on FDE Lab missions, Premium PDF guides and companion files, the full practice-test bank and work-sample downloads. Referral Premium excludes guide PDFs and their companion files. Access lasts six months and includes new material added during that period. Premium includes all published videos on the site, including those within Premium lessons. Videos on free pages remain free to watch.

A free account gives you 20 answers per topic, free and sign-in course lessons, foundational and core concepts, starter labs and easy practice tests. Premium opens every answer, every course lesson and concept, and all lab missions and practice-test levels. Paid Premium also includes the complete Premium PDF guides and companion files. Your progress and bookmarks work on both plans.

If you came from a locked question, concept, lesson or lab, use the continuation link after payment to return to it. Otherwise, open Courses and choose a course for your current goal. Foundations of Forward Deployed Engineering is a starting point for the role. Mark lessons as read so you can continue from Courses or your account next time. Your account also contains the guide downloads.

Every FDE Lab mission is included, from debugging API integrations and constraining agents to recovering a failing system during a timed incident. You work in a simulated customer environment in your browser, with a terminal, logs, traces and metrics. Nothing to install. Missions include checked objectives, progressive hints and a debrief to help you explain your decisions.

Paid Premium includes all Premium PDF guides and their companion downloads: worked take-home solutions, case-round practice kits and executable system-design examples. Download them while your access is active and keep your copies for personal study. On this website, videos follow their written page's access requirements: free pages are open, sign-in lessons need a free account, and Premium lessons require Premium. The videos are also public on our YouTube channel. Not every written lesson has a video yet. Referral Premium covers online study, including lesson videos, but excludes guide PDFs and their companion files.

No. One payment unlocks six months of full access. Nothing recurring, no card stored, nothing to remember to cancel.

Your account reverts to free. You keep your progress, bookmarks, and the free answers, and you can re-up for another six months whenever you want, never automatically.

Available payment options: $25 by card (Visa, Mastercard, Amex) through Razorpay; $25 with PayPal; ₹2,000 by UPI, card, or netbanking through Razorpay. Each unlocks the same Premium access. We never see or store your card or UPI details. Access is tied to your Google account and unlocks once payment is confirmed.

Yes. Free answers in every topic are fully unlocked, including complete code, diagrams, and tables, so you can judge the depth before spending anything.

Write to us and we will extend it. If your loop lands a few days past your six months, email support at fdeinterviews.com and we will make sure you are covered through the interview, at no charge. Same for anything else that goes wrong: billing trouble, access that did not unlock, an answer you think is mistaken. A person reads every message.

All sales are final, so there are no refunds. Payment grants access to the Premium curriculum, answers, guides and practice materials immediately. Try the free answers, video lessons and guide samples before paying so you can judge whether the depth is right for you.