Payments architecture review
For teams choosing a payments model, reviewing a vendor path, or cleaning up a payment architecture before it gets expensive.
Senior review for payment, AI, and integration decisions that carry real operating cost. Bring the system, the constraints, and the evidence. Leave with a written path your team can defend.
Credibility
Doric Stack is an enterprise-grade technical studio. The public surface stays inspectable: released apps, public tools, written reasoning, and product proof records.
Review paths
Every path starts with a defined decision boundary and ends with written findings. The subject changes. The standard does not.
For teams choosing a payments model, reviewing a vendor path, or cleaning up a payment architecture before it gets expensive.
For builders who need the system to behave under messy inputs, partial context, provider failures, and user pressure.
For product and engineering teams that need a clean decision before code, vendors, and operations drift apart.
Best when the question is narrow enough to solve in one session and important enough to prepare for.
Sample deliverables
Each review ends in a decision artifact your team can challenge, forward, and turn into work. These are representative structures, never client material.
Decision memo
01One page of answer-first guidance for the decision owner.
Recommend merchant-of-record for launch, with direct processing deferred until reconciliation volume justifies it.
Architecture review
02A practical read on boundaries, ownership, data contracts, and operational risk.
Move entitlement state behind the checkout callback boundary and make webhook replay idempotent before beta.
Risk register
03A concrete table of launch, vendor, payment, data, and support risks.
Refund workflow has no owner; assign support path before enabling paid checkout.
Vendor scorecard
04A comparison that separates feature match from integration and operating cost.
Paddle wins launch tax coverage; direct processor wins control only after entitlement state becomes first-party.
Implementation review
05A scoped path from decision to implementation without turning the review into a retainer.
Build checkout config as a read-only function first, then add webhook storage once sandbox events are captured.
Sanitized artifact package
A review does not end as a call recap. It ends as a small package your team can forward, challenge, and turn into work.
Recommendation, rejected options, assumptions, evidence, and the next decision owner.
Failure modes, owner handoffs, impact, and the control that lowers the risk.
First slice, interfaces, test gate, rollback point, and what not to build yet.
Engagement depth
Price and time are anchored up front. Intake confirms fit and the material required for a useful answer.
01 / Focused working session
Starts at $500
60 to 90 minutes
One narrow decision with useful context already assembled.
Decision notes, key risks, and next actions.
02 / Architecture review
Starts at $1,500
3 to 5 business days
Payments, AI, SaaS, or integration decisions that need written evidence.
Decision brief, risk register, and implementation path.
03 / Decision sprint
Starts at $3,500
5 to 10 business days
A high-stakes vendor, architecture, or launch choice with multiple owners.
Memo package, scorecard, risk register, and stakeholder-ready recommendation.
Working standard
Intake confirms the decision owner, available artifacts, deadline, risk level, and fit before paid work.
The review produces a recommendation, rejected paths, named risks, and next moves that survive the call.
We separate what must be decided now from what can wait, then name the constraints, failure modes, and success signals.
For payments, AI, or integrations, the review follows money flow, data flow, control points, ownership, and operational handoffs.
You leave with the viable options narrowed, the weak paths rejected, and the next implementation or vendor steps made explicit.
Architecture judgment across onboarding, merchant models, settlement, reconciliation, disputes, and operating failure modes.
Hands-on build work across LLM apps, MCP tooling, retrieval, evaluation, provider boundaries, and production hardening.
The review stays tied to what can be built, tested, operated, and explained to the people who own the result.
You send the decision, current context, constraints, and any diagrams or docs that matter.
I inspect the architecture, risks, tradeoffs, and operational edge cases before the session.
You get a written summary, decision path, and next actions tied to the package.
Advisory intake
The intake is a fit check, not a sales call. Send the decision, the deadline, and the evidence already on hand.