FDE Dispatch

FDE glossary: Forward Deployed Engineer terms, defined

By Kris Diallo · Founder, FDE Dispatch · October 2026

FDE Dispatch maps the language of Forward Deployed Engineer work and hiring. Each entry below is a short definition you can quote on its own, then a note on how the term shows up in FDE fieldwork or FDE interview loops.

Terms in this glossary

Forward Deployed Engineer

A Forward Deployed Engineer embeds with a customer, finds a problem inside their operation, designs and builds the system that fixes it, deploys it against their real tools, and owns the measured result after launch.

The role comes down to three skills covered in What is a Forward Deployed Engineer?: understand the business, turn that into architecture, and ship a system that keeps working after the demo. For how live employer postings phrase those requirements, see Forward Deployed Engineer skills.

Deployment Strategist

Deployment Strategist is Palantir's title for the customer-facing deployment role that works beside Forward Deployed Engineers to map workflows, scope impact, and drive adoption in the field.

In FDE hiring conversations the strategist title signals heavier problem definition and stakeholder work; the engineer title signals ownership of the production build. Companies outside Palantir use both labels with blurred boundaries. See Forward Deployed Engineer job titles for how Palantir, Salesforce, and Ramp post the engineer–strategist pair on their own careers pages.

Field engineer / solutions engineer

A solutions engineer, and close cousins such as field engineer, helps customers adopt and configure an existing product. A Forward Deployed Engineer owns the build and the measured outcome after the system is live.

Both roles sit with the customer. The split is ownership of the production system, covered in FDE vs. solutions engineer. For software engineer comparisons, see Forward Deployed Engineer vs. software engineer.

Discovery

Discovery is the FDE practice of interviewing the people who run a process, reconstructing how the work happens today, finding who owns the pain, and attaching a number that would prove a fix.

Hiring loops weigh discovery heavily: candidates who jump to a model before the process is clear fail the round. The how-to path starts discovery in the first thirty days.

Scoping brief

A scoping brief is the short written record of the customer problem, the metric attached to it, what is in scope for the first slice, and what is cut.

FDE Dispatch treats the scoped brief as a portfolio deliverable beside the design doc. Interviewers ask for the same shape when they probe how you chose the first slice.

Design doc

In FDE work, a design doc is the one-page architecture tied to a business metric: how the system changes the current process, what it connects to in the customer's tools, and which tradeoffs were chosen.

Strong FDE design docs answer one question: how does this improve the process, and what number proves it? Stack choices come after that call.

Decomposition round

A decomposition round is an FDE interview exercise that gives you a vague business problem and scores how you break it into a metric, a first slice, and explicit cuts before talking about technology.

Strong answers ask how the work happens today, who owns the pain, and what number would prove a fix. The field guide covers what this round tests and the common misses.

Work trial

A work trial is a multi-day FDE interview assignment where you build a scoped solution and present the decisions to a mock customer or internal stakeholders.

The presentation and write-up carry as much weight as the code. Structure it like a field report: problem, number, scope, design, what broke, result. See the interview loop guide.

Practice the interview rounds defined here. FDE Dispatch runs each one as a recorded simulation with written feedback.

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Customer-scenario system design

Customer-scenario system design is an FDE interview round that asks you to design under real account constraints: data access, security reviews, legacy systems, and a timeline measured in weeks.

Reliability, evaluation, and phased rollout matter more here than abstract scale. Name where the model belongs, where a person stays in the loop, and what you cut if the timeline shrinks.

Deployment deep dive

A deployment deep dive is an FDE hiring conversation that takes apart one past deployment end to end: the customer problem, the architecture, the evals, what failed after launch, and what changed.

Interviewers use it to test whether you have shipped with a real customer and can defend the engineering and the business outcome in the same story.

Deployment retrospective

A deployment retrospective is an FDE interview round that walks through something you shipped with a customer: what broke after launch, how you found out, and what you changed.

Tell one concrete story. Separate what the customer felt from what the system did. The field guide lists the patterns that decide this round.

Customer role-play round

A customer role-play round is a live FDE interview conversation with an interviewer playing a skeptical stakeholder, testing discovery, pushback, and the next step you propose.

Strong candidates restate the constraint in the stakeholder's language, propose a small next step, and stay steady when the room disagrees.

Evaluation suite (evals)

An evaluation suite is the set of tests an FDE builds to prove the system works on real cases, capture a baseline, and measure the change once the system is live.

Evals turn failures into better versions. FDE portfolios and interview stories that skip measured results read as demos without a live outcome.

Human fallback

A human fallback is the designed path that keeps a person in control when the model is wrong, uncertain, or out of scope, so the customer's operation continues.

FDE designs that omit fallback fail constrained system-design rounds and security reviews. Name who takes over, how they are alerted, and what the user sees.

Pilot

In FDE work, a pilot is a bounded first deployment into a real customer slice: a narrow scope, a named owner, a success metric, and a clear continue-or-stop review.

Pilots prove the first slice under real tools and data. They are the bridge between a scoping brief and a production deployment.

Production deployment

A production deployment is an FDE system running against a customer's live tools and data, used for real work, with monitoring and ownership after the demo.

Hiring teams want to see one of these. The how-to guide centers the ninety-day path on shipping and measuring that system.

Last mile

The last mile in FDE work is the stretch between a working prototype and a system that survives a customer's real tools, permissions, data, and day-to-day process.

This is where integrations break, credentials fail, and the process in people's heads disagrees with the diagram. FDE hiring treats last-mile judgment as part of the job.

Embedded engineering

Embedded engineering is the FDE practice of sitting inside the customer's operation long enough to own the problem, ship the fix against their stack, and stay accountable for the result.

The embed is how discovery, build, and post-launch ownership stay with one engineer. Product engineering builds one capability for many users; embedded FDE work builds many capabilities for one account.

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Field notes from live AI deployments and what FDE interview loops are testing.

Related guides

Build the vocabulary into a deployment

FDE Dispatch trains engineers against these terms in the field: discovery, a scoped brief, a live deployment, evals, and interview practice on every round type above.

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