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AI-509 AI & Data

Conversational & Voice Assistant Engineering

Build assistants users trust: dialogue design, retrieval-grounded answers with citations, memory across sessions, voice integration, and a 50-question evaluation harness that must pass before anything ships — including the discipline of fixing the category the harness fails.

B4Professional
5modules
32skill atoms
2role journeys
Curriculum

What this course covers.

5 modules, 32 named skill atoms. Expand any module to see them.

1Assistant Architecture6 skill atoms
NLU→policy→generation loopgroundingintent vs open-ended routingretrieval before generationtool invocation policyfallback intent
2Dialogue & Memory Design7 skill atoms
staterepair strategiespersonalisation limitsslot filling & clarification questionsmisunderstanding recoveryconsent for stored preferencescontext budgeting
3Voice Integration6 skill atoms
STT/TTS round triplatency budgetsstreaming ASR partialsendpointing tuningbarge-in supporttime-to-first-audio target
4Evaluation Harness6 skill atoms
50-Q gold setgrounded-answer % gatecitation coveragerefusal correctnessper-category scoringregression run per change
5Fail-and-Fix Ritual7 skill atoms
planted weak categorydiagnoseretrainre-passfailure-bucket analysisretrieval vs prompt root causetargeted data or prompt fix
Where it fits

AI-509 in the role journeys.

This course appears in 2 of our 45 role journeys. Here is what a learner takes immediately before and after it in each.

Agentic AI Engineer

Professional stage
AI-404AI-509SEC-502

AI Quality / Eval Engineer

Capstone stage
AI-214AI-509AI-402

Roles this course serves

The capability ladder

This course is authored to band B4.

Every course we run is written to one rung of the CASI ladder, so a plan can be assembled to take a team from where they are to where they need to be.

What do B1–B6 mean?The CASI Capability Ladder — click to expand

Every course targets a band on the CASI Capability Ladder — our six-band proficiency scale, anchored to open standards (O*NET, ESCO, NICE, NIST AI RMF, Bloom's). A band tells you how deep a course goes, and what evidence proves it.

What the learner can doTypical evidence
B1
AwareUnderstands concepts and vocabulary; uses tools with guidance
Knowledge checks
B2
FoundationPerforms standard tasks correctly in familiar contexts
Guided labs, autograded exercises
B3
PractitionerDelivers complete pieces of work independently
Scenario labs, proctored hands-on exams
B4
ProfessionalHandles production-grade complexity, trade-offs and failure modes
Break-fix drills, design defenses
B5
AdvancedEngineers systems end-to-end under constraints; leads others
Rubric-scored capstones, vivas
B6
ExpertSets direction; recognised authority across teams
Portfolio + panel evaluation

A note on B6. Courses in this catalog target B1–B5. B6 is not taught — it is recognised, through a portfolio and a panel, once someone is setting direction for others. Every journey here is built to land a learner at B5.

Next step

Run AI-509 for your team.

This course runs at several lengths depending on how deep you need to go and how much of it your people already have. Tell us who is being trained and we will scope it.

Add it to a training plan Talk to our team Check your team’s level free