The SA & SE skills matrix
Last reviewed: 2026-06-29 — see the freshness policy.
Learning objectives
After this chapter you will be able to:
- Distinguish the Solution Architect (SA) and Solution Engineer (SE) roles in HLS.
- Use a competency matrix to assess where you are and what to grow next.
- Apply a leveling rubric (Associate → Principal) to the HLS-specific skill set.
SA vs SE — two roles, one spectrum
"Solution Architect" and "Solution Engineer" overlap and are titled inconsistently across companies, but the centre of gravity differs:
- Solution Architect (SA) — owns the design. Translates a business problem into a defensible architecture, makes the hard-to-reverse decisions, and is accountable for it being buildable, compliant, operable, and affordable. Lives at the C4 Context/Container altitude and in ADRs.
- Solution Engineer (SE) — makes it real and makes it land. Often a pre-sales/customer-facing technical role (demos, proofs-of-concept, scoping) and/or a hands-on integration/implementation engineer. Closer to the keyboard, the customer, and the constraints.
flowchart LR
Biz["Business problem"] --> SA["SA — design & decide"]
SA --> SE["SE — demo, build, integrate"]
SE --> Live["Working solution"]
Live -. feedback .-> SA
In practice it is a spectrum: pre-sales SAs craft and sell the technical vision; post-sales SAs deliver inside legacy constraints; and full-cycle roles (common in smaller HLS firms) own the whole journey. Most people slide along this line over a career — the matrix below is the map.
Competency domains (HLS-tuned)
The bootcamp's three strands — SA craft, HLS domain, platforms — expand into seven assessable domains. The emphasis differs by role (●●● = core, ●● = strong, ● = working knowledge):
| Competency domain | SA | SE | Where in this book |
|---|---|---|---|
| Architecture craft — NFRs, trade-offs, C4/ADRs, TCO | ●●● | ●● | Part 1 |
| HLS interoperability — FHIR/HL7v2/DICOM, terminologies, OMOP | ●●● | ●●● | Part 2 |
| Compliance & security — HIPAA/GxP/HITRUST, regional, threat modeling | ●●● | ●● | Part 3 |
| Cloud & data platforms — AWS/GCP/Azure/Databricks/Snowflake, lakehouse | ●●● | ●●● | Parts 4–5 |
| AI/ML in HLS — clinical AI, governance, SaMD | ●● | ●● | Part 6 |
| Delivery & communication — discovery, stakeholders, security review | ●●● | ●● | Part 10 |
| Hands-on build & demo — IaC, code, POCs, customer enablement | ●● | ●●● | the labs |
The split to remember: SAs go deeper on design, compliance, and stakeholder communication; SEs go deeper on hands-on build, demos, and customer-facing problem-solving. Both need strong interoperability and platform skills — those are the non-negotiable HLS core.
Leveling rubric
Each domain also has a depth level. A pragmatic four-rung scale:
| Level | What it looks like |
|---|---|
| Associate | Executes within a defined design; knows the vocabulary; needs review on significant decisions. |
| Mid | Owns a component or a lab end-to-end; applies patterns; flags the right risks. |
| Senior | Owns a whole solution; makes and defends trade-offs; engages compliance/clinical stakeholders unaided. |
| Principal | Sets patterns across solutions; handles the multi-jurisdiction, multi-cloud, ambiguous brief; mentors others. |
The bootcamp is built to move you from Associate toward Senior: the chapters build judgment, the labs build hands-on depth, and the capstone is a Senior-level exercise (own and defend a whole HLS design).
The HLS-specific must-haves
Whatever your title or level, these separate an HLS architect/engineer from a generic one:
- Compliance as a design input, not an afterthought (HIPAA/GxP).
- Fluency in clinical data — you can read an HL7v2 message and a FHIR profile.
- PHI instincts — you reason about the BAA surface, de-identification, and data residency by reflex.
- Stakeholder range — you can talk to a clinician, a CISO, and a CFO (stakeholders).
External validation: certifications
The bootcamp builds judgment; certifications are how you signal it externally. None are required, but they map cleanly onto the matrix above:
| Certification | Validates | Maps to domain |
|---|---|---|
| Cloud architect certs (AWS/GCP/Azure Solutions Architect) | Platform depth on one cloud | Cloud & data platforms |
| HL7 FHIR certification | Standards-level FHIR proficiency | HLS interoperability |
| CPHIMS (HIMSS) | Broad healthcare-IT management knowledge | HLS domain breadth, delivery |
Treat certifications as a checkpoint, not the goal — the capstone tests the same judgment a certification exam can only sample.
How to use this matrix
- Self-assess each domain (level × current depth) — honestly.
- Pick your role vector (SA-leaning, SE-leaning, or full-cycle) and the domains it weights.
- Target the gaps with the matching chapter + lab.
- Re-assess after the capstone. Standard architecture-competency frameworks (e.g. the TOGAF Architecture Skills Framework) can supplement this for formal HR leveling.
Check yourself
- What is the core difference in accountability between an SA and an SE?
- Which two competency domains are non-negotiable core for both roles in HLS, and why?
- At which level should you be able to engage compliance and clinical stakeholders unaided?