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How to land a Forward Deployed Engineer offer.

Deep, no-fluff articles on the FDE and Applied AI interview: company loops, the rounds that actually decide it, prep plans, and the AI skills that get offers. Researched from real loops, with a question bank to practice on.

DiffusionGemma: A Practical Guide to Coding, Decisions and DeploymentLearn how DiffusionGemma generates text, run its Python pipeline, build coding and decision-support workflows, compare serving options, fine-tune and benchmark usable output.Lukas Hoffmann · Oct 28, 2026 · 17 min read

EmbeddingGemma 2: Build, Fine-Tune and Deploy Multimodal SearchA practical EmbeddingGemma 2 tutorial for FDEs: Python retrieval, code search, image and audio use cases, fine-tuning, local hosting, evaluation and safe index migration.Mei Lin · Oct 28, 2026 · 17 min read

LEANN for Local RAG: Storage, Recall and TradeoffsUnderstand LEANN’s selective embedding recomputation, interpret its 97% storage claim, and evaluate local RAG with a worked budget, diagrams and an interactive calculator.Mei Lin · Oct 23, 2026 · 9 min read

Deep Research Agents Need a Reviewer: What a Jev Review Layer Gets Right, and the Gaps We Found Testing OneA deep research agent with a separate review layer is the right design: the model that writes the report should not decide it is done. We read and tested an open-source Nemotron, Tavily and Jev build. It fails open, retries without feedback and judges grounding against snippets. Here is the fix.Mei Lin · Oct 21, 2026 · 9 min read

OpenCodeReview Review: What Alibaba's Open-Source AI Code Reviewer Gets Right, and What We Found Testing ItOpenCodeReview is Alibaba's open-source AI code review CLI. We read the source, re-did its benchmark arithmetic and ran it on a test repo. It posts about 3 comments per PR where Claude Code posts 15 to 30, finds fewer real bugs, and its Java rules have no security section.Brandon Foster · Oct 21, 2026 · 11 min read

Opik Review: The Open-Source LLM Evaluation and Tracing Platform, Tested, With the Defaults You Should ChangeOpik is Comet's Apache-2.0 platform for LLM tracing, evaluation and monitoring, self-hostable in full. We installed it and read the code. Its string metrics scored a wrong answer 0.96 and a right one 0.45, and the SDK reports errors and usage to Comet by default. What to use it for and how to set it up.Emily Carter · Oct 21, 2026 · 9 min read

Self-Improving Agent Harnesses: Harness², MemoHarness and Meta-Harness Compared, With Our Own RunsThree research systems let an AI agent rewrite its own prompts, skills, scripts and hooks. We ran Harness², recomputed MemoHarness's costs and compared all three. They work, the gains are smaller than the headlines, and caching decides who is cheaper. What to copy for a customer deployment.Lukas Hoffmann · Oct 21, 2026 · 10 min read

TencentDB Agent Memory Review: Layered Memory for AI Agents, What the Benchmarks Really Show, and When to Use ItTencentDB Agent Memory gives coding and work agents shared, layered memory through a proxy: chat memory, skills, a wiki and a code graph. We read the code and recomputed its benchmarks. The 51.52% headline is 17 points on one benchmark, and two token figures don't match their own table.Adam Reyes · Oct 21, 2026 · 8 min read

Agentic Software Factories: How to Build an AI Pipeline From Issue to Production That You Can TrustAn agentic software factory uses AI agents to carry a change from issue to production, with deterministic gates deciding what ships. What Stripe, Spotify, OpenAI, StrongDM and Warp report, the reference loop, verification, merge queues, rollout, security, cost, model upgrades, and a Google ADK build.James Bennett · Oct 20, 2026 · 36 min read

Agent Gyms for FDEs: How to Test an Agent Before It Touches a Customer SystemLearn what an agent gym is, how it differs from a benchmark, and how to build a useful first environment. Includes a worked failure scenario and a path to hands-on practice.Mei Lin · Oct 17, 2026 · 4 min read

Harness Engineering, Explained: What Makes AI Coding Agents Reliable (Learn Harness Engineering and MemoHarness)Harness engineering is everything you build around a model so an agent finishes real work: instructions, tools, state, verification and scope. What Anthropic measured, what the Learn Harness Engineering course and the MemoHarness paper add, the gotchas, and how an FDE sets one up at a customer.Lukas Hoffmann · Oct 7, 2026 · 10 min read

How AI Coding Agents Find Code: codebase-memory-mcp vs jevgrep vs Grep, With the Benchmarks Read CloselyCoding agents spend much of a task finding the right files. Three approaches: grep-and-read, a code knowledge graph over MCP (codebase-memory-mcp) and model-judged retrieval (jevgrep). Architecture, the real benchmark numbers, the gotchas, and which to use on a customer's codebase.Arjun Mehta · Oct 7, 2026 · 10 min read

Train an LLM From Scratch: What We Learned Running train-llm-from-scratch on a CPU in Two MinutesYou can train a small language model from raw text on an ordinary CPU in about two minutes. We ran the open-source train-llm-from-scratch repo, recorded the numbers, and explain each stage (tokenizer, pretraining, SFT, reward model, DPO, PPO, GRPO), the gotchas, and why an FDE should do it once.Hannah Bryant · Oct 7, 2026 · 6 min read

What Is Jev? TypeSafe AI's System One Model, Explained for Forward Deployed EngineersJev is TypeSafe AI's decision model: state in, typed answers with calibrated probabilities out, no text generation. The three primitives, the use cases that fit, what the first independent benchmarks and the Laya comparison show, the documented failure modes, and how an FDE should place it in a customer's pipeline.Mei Lin · Sep 20, 2026 · 18 min read

How to evaluate an FDE job description before investing in the interviewAssess an FDE role through production ownership, account load, travel, decision authority and product feedback. Includes questions to ask and evidence that distinguishes an unanswered question from a poor fit.Adam Reyes · Sep 17, 2026 · 5 min read

How to run an FDE mock interview that reveals what to practice nextRun an FDE mock with a changed requirement, evidence-based feedback and a fresh retest. Includes a 45-minute practice format, reviewer notes and rules for using AI without confusing coaching with assessment.Mei Lin · Sep 17, 2026 · 5 min read

How to switch to FDE from software engineering, program management or engineering managementBuild an FDE transition plan from evidence you can demonstrate: production code, customer decisions and operating responsibility. Includes different starting points for engineers, TPMs and engineering managers.Emily Carter · Sep 17, 2026 · 5 min read

How Long Does the Forward Deployed Engineer Interview Process Take?Eleven timeline entries in our registry yield a median midpoint of 4.5 weeks. Understand the source limits before using that figure to plan interviews.Brandon Foster · Sep 12, 2026 · 4 min read

How Many Companies Hire Forward Deployed Engineers?Our registry tracks 111 companies across FDE and adjacent AI roles: 88 core FDE, 15 ML engineering and 8 applied AI. Coverage and evidence limits explained.Arjun Mehta · Sep 12, 2026 · 4 min read

How Many Rounds Is a Forward Deployed Engineer Interview?Across 43 ordered stage lists in our company registry, the median is 4 listed stages, ranging from 2 to 7. These counts are not standardized interview sessions.Hannah Bryant · Sep 12, 2026 · 4 min read

FDE Exit Options: What the Role Actually Does to Your CareerThe honest answer to whether a forward deployed engineer role helps or hurts your career: what it builds, what it atrophies, the real exit paths with reasoning, and the one ambition it is bad for.Arjun Mehta · Aug 23, 2026 · 9 min read

How to Negotiate a Forward Deployed Engineer OfferFDE offers bend more than standard SWE offers. What to negotiate in order (level, equity, base, travel terms), the artifact that moves your level, competing-offer mechanics, and the asks that signal you misread the role.Lukas Hoffmann · Aug 23, 2026 · 9 min read

Deltas, Devs, and the Gravel Road: The Palantir Vocabulary Behind the FDE RoleForward deployed engineering comes with an inherited vocabulary: Deltas and Devs, the ontology, the gravel road that becomes a paved superhighway. Where each term comes from, what it actually means, and why the words still shape how AI companies deploy engineers today.Hannah Bryant · Aug 9, 2026 · 9 min read

FDE War Stories All Rhyme: The Nine Patterns in Every Deployment StoryRead enough forward deployed engineers describing their work and the same nine stories keep appearing: access that takes longer than the build, data that was nothing like the spec, the demo hallucination. Knowing the patterns prepares you for the job and for the interview.Adam Reyes · Aug 9, 2026 · 10 min read

How Forward Deployed Engineers Work: The Deployment Lifecycle (2026)A practical breakdown of how Forward Deployed Engineers actually operate, from discovery to productization: the repeatable eight-stage lifecycle FDEs use to turn a messy customer problem into a shipped, reliable AI system, and how interviews test each stage.Lukas Hoffmann · Aug 8, 2026 · 11 min read

Context Engineering: The Skill That Replaced Prompt EngineeringPrompt engineering was one good instruction. Context engineering is controlling everything the model sees at inference: which files, which history, which tool results. Here is what it means, the four operations it breaks into, and why FDE and Applied AI interviews now screen for it.Arjun Mehta · Jul 25, 2026 · 5 min read

A Day in the Life of a Forward Deployed EngineerWhat a real day looks like for a forward deployed engineer: the customer standup, scoping a vague ask, building and integrating, running evals, a hard stakeholder conversation, and the travel reality nobody tells you about.Mei Lin · Jun 21, 2026 · 8 min read

Anthropic Forward Deployed Engineer (Applied AI) Interview Guide (2026)Anthropic's FDE loop weighs references and a values round as heavily as code. Inside the live-Claude/MCP use-case screen, the refactor-heavy coding stage, VPC and regulated solution design, and why the values interview fails the most candidates.Lukas Hoffmann · Jun 21, 2026 · 9 min read

FDE Coding Interviews Are Not LeetCode: What to Practice InsteadFDE coding rounds skip the algorithm puzzles and test production work: API integration with retries and idempotency, parsing messy real-world data, a small RAG pipeline, and refactoring working-but-ugly code with tests green. Here is what to drill.Mei Lin · Jun 21, 2026 · 10 min read

FDE Interview Prep Mistakes That Cost Strong Engineers the OfferThe recurring ways capable engineers fail a Forward Deployed Engineer loop: over-grinding LeetCode, solving before scoping, no evaluation story, ignoring the customer rounds, and a weak why-FDE. Each mistake plus the fix.Lukas Hoffmann · Jun 21, 2026 · 8 min read

FDE System Design: Designing AI Systems Under Customer ConstraintsFDE system design is not textbook distributed systems. You design under a customer's VPC, data residency rules, SSO, a hard latency or cost budget, and an evaluation plan. Here is a worked RAG example in a regulated VPC.Lukas Hoffmann · Jun 21, 2026 · 11 min read

FDE vs Software Engineer: Pay, Day-to-Day, and Which to ChooseAn honest comparison of Forward Deployed Engineer and standard software engineer roles: compensation, daily work, travel, growth, and who each suits. Approximate reported numbers and a clear recommendation.Mei Lin · Jun 21, 2026 · 9 min read

Google Forward Deployed Engineer Interview: Process and Prep (2026)A round-by-round look at Google's FDE loop: the algorithms round, the ambiguous 'vibe coding' session, agentic and ML system design with cost and latency trade-offs, and Googleyness. What each stage screens for and how to prepare.James Bennett · Jun 21, 2026 · 9 min read

How to Answer 'Why Forward Deployed Engineering?' (and Why It Is a Real Filter)The 'why forward deployed engineering' question is not a warm-up. It predicts whether you will quit within a year. Here is what a strong answer contains, the weak answers that get filtered, and how to make yours land.James Bennett · Jun 21, 2026 · 8 min read

How to Break Into Forward Deployed Engineering Without a FAANG BackgroundYou do not need a big-tech resume to land an FDE role. Here is why founder and teaching backgrounds win, how to build proof, picking a vertical, and the portfolio project that gets interviews.Brandon Foster · Jun 21, 2026 · 8 min read

OpenAI Forward Deployed Engineer Interview: Process, Rounds, and How to Prep (2026)A round-by-round breakdown of the OpenAI FDE loop: recruiter screen, practical coding, LLM-deployment system design, project deep dive, and the AI-fluency behavioral. What they screen for and how to prepare.Emily Carter · Jun 21, 2026 · 9 min read

Palantir Forward Deployed Engineer (FDSE) Interview: The Original FDE LoopPalantir invented the forward deployed role. Here is how the FDSE loop actually works, from systematic problem decomposition and data-pipeline integrity to enterprise integration in a customer's VPC, and what they screen for at each stage.Lukas Hoffmann · Jun 21, 2026 · 9 min read

RAG, Evals, and Agents: The AI Skills Every FDE Must MasterThe technical core of forward deployed engineering: retrieval-augmented generation, evaluation, agents and tool use, plus cost and latency. What good looks like for each and how it shows up in the interview loop.Lukas Hoffmann · Jun 21, 2026 · 9 min read

The 6-Week Forward Deployed Engineer Interview Prep PlanA concrete week-by-week plan for the FDE loop: ambiguity and scoping, practical coding, system design, and behavioral. Specific topics, links, and what to drill each week so you walk in calibrated.Emily Carter · Jun 21, 2026 · 9 min read

The FDE Case-Study Round: How to Decompose an Ambiguous Customer ProblemThe case-study round is the signature FDE interview stage, with the lowest pass rate and the highest weight. Here is a repeatable framework for decomposing a vague customer problem into a scoped, defensible plan under pressure.Mei Lin · Jun 21, 2026 · 9 min read

The FDE Customer Simulation Round: A Role-Play PlaybookA panel plays your client stakeholders and you have to scope live, communicate tradeoffs, and absorb pushback. Here is the playbook for the FDE customer simulation, and the one mistake that sinks most candidates.Emily Carter · Jun 21, 2026 · 9 min read

Why Forward Deployed Engineering Is the Hottest AI Role of 2026FDE roles are growing faster than almost any title in tech and pay well above standard engineering bands. Here is what is driving the surge, who is hiring, and how to break in.Arjun Mehta · Jun 21, 2026 · 8 min read

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