The brief misses the work.
The rules that keep things running live in people's heads. A requirements doc never captures them.
Forward-deployed AI engineering · For owner-led businesses
AI, where
the work
happens.
Feinity embeds a senior AI engineer inside your business to find one workflow worth automating, build it end to end, and keep it running. Fixed scope, live in weeks, no internal AI team required.
- First deployment 2–6 weeks
- Engagement Fixed scope, fixed price
- At handoff Code and accounts are yours
01 / The gap
The demo works.
Production is a different job.
AI can answer a clean question. Your business runs on exceptions, handoffs, and systems that were never designed to talk to each other. That is where most AI projects stall.
The tool doesn't know your business.
Generic automation cannot judge a good lead, a bad quote, or the job that needs a person.
Nobody stays for the messy part.
Launch is the easy part. Quality drifts when no one is watching the workflow in production.
Feinity puts one engineer inside the work, from the first observation to the daily operation.
02 / The model
One engineer.
The whole loop.
A forward-deployed engineer works inside the business, not at arm's length from it. They learn how the work actually gets done, build the system in the middle of it, and stay accountable for what happens after launch.
At Feinity, that is one senior engineer: the same person who shadows your team, writes the blueprint, ships the build, and owns the runbook.
Enterprise FDE teams are built for Fortune 500 rollouts. Feinity brings the same discipline to owner-led businesses: one senior engineer, one workflow, one fixed price, and a system you own.
FDE / right-sized for owner-led business
The FDE loop
Observe → ship → operate
Shadow
We watch the real work: calls, inboxes, spreadsheets, and handoffs. We find where time leaks and where AI can be trusted.
Output Opportunity map
Blueprint
We map the data, systems, exceptions, and acceptance tests into a fixed-scope build plan.
Output Architecture + scope
Build
We ship in phases against real examples, with a working review every week.
Output Production system
Operate
We monitor quality, cost, and failure modes, then improve the workflow as the business changes.
Output Runbook + care plan
Production feedback changes the next build.
The same engineer owns every step. There is no handoff between the person who understands the workflow and the person who builds it.
03 / Where we deploy
AI for the work that keeps the lights on.
We work with owner-led businesses where a missed lead, a slow quote, or a manual handoff has a direct cost.
01
E-commerce
Keep product data clean, order exceptions moving, and support tickets out of your inbox.
First buildAI chatbot
02
Home services
Recover missed calls, qualify jobs, follow up on quotes, and keep the calendar full.
First buildAI voice agent
03
Professional services
Turn client intake, documents, and proposals into a workflow that does not depend on memory.
First buildAI document processing
04
Delivery & field ops
Handle route exceptions, proof-of-delivery, driver questions, and the daily closeout.
First buildBusiness workflow agent
Not on the list? If the work runs on calls, email, documents, and a CRM, we can map it.
Bring us the process04 / The deployment
Shadow first.
Ship in weeks.
A first deployment is intentionally small: one workflow, real data, production use. You see working software every week.
Week 0
Shadow & assess
Observe the current workflow, review systems and data, and choose the first build.
OutputOpportunity memo
Week 1
Blueprint
Fixed scope, architecture, data access, acceptance tests, and a price you approve.
OutputBuild plan
Weeks 2–4
Build
Ship in phases and test against real examples. Review working software every week.
OutputAlpha system
Weeks 5–6
Deploy
Beta with your team, training, documentation, and a two-week warranty.
OutputProduction handoff
Ongoing
Operate
Monitor, evaluate, fix, and improve under a Care plan or as needed.
OutputRunbook + reviews
A focused first build usually runs 2–6 weeks after scope is agreed. Integrations can extend the timeline; the proposal states the schedule before build starts.
05 / Pricing
Published ranges.
Fixed scopes.
Every proposal names the workflow, the systems, the acceptance tests, and the price. If the scope changes, we quote it before we build.
Start with one workflow that has a clear cost when it fails or slows down. We scope the build, test it against real examples, and put it into production.
Typical: $2.5k–$8kAI chatbot
Answer common questions, qualify leads, and hand off to a person with context.
$1,500–3,000
AI lead management
Capture, qualify, route, and follow up across calls, forms, and your CRM.
$2,500–5,000
AI voice agent
Answer or return calls, book appointments, and capture job details.
$3,000–7,000
AI document processing
Extract, validate, and route data from PDFs, email, and scans.
$3,000–8,000
CRM integration
Connect the tools your team already uses and keep records clean.
$3,000–8,000
Business workflow agent
Multi-step workflows with approvals, exceptions, and human handoff.
$5,000–15,000
Most first builds land between $2,500 and $8,000. Delivery: 2–6 weeks.Fixed scope before build.
AI consulting for teams that need a decision before a build: what to automate, what to leave alone, what it will cost, and how to sequence it.
From $500AI analysis & discovery
Interviews, workflow mapping, opportunity list, and an initial benefit and risk assessment.
$300–500 / hr
AI audit & evaluation
System and workflow assessment with findings and prioritized recommendations.
$500–1,000
Technical architecture
Architecture, data flows, model and tool selection, and an integration plan.
$1,000–2,500
AI strategy roadmap
Phased roadmap, budget ranges, implementation priorities, and success metrics.
$1,500–3,000
Audit, architecture, and roadmap are fixed-scope projects.Extra systems or interviews are quoted separately.
Care is for workflows already in production: health checks, monitoring, fixes, and a regular look at what should improve next.
MonthlyBasic care
$299/ mo
A safety net for a stable workflow.
- Health checks and error alerts
- Monthly status summary
- Limited troubleshooting
Growth care
$799/ mo
For workflows that are central to the business.
- Everything in Basic
- Usage and cost monitoring
- Monthly optimization recommendations
- Limited configuration changes
Premium care
$1,499/ mo
For teams that want a partner on call.
- Everything in Growth
- Priority support
- Regular workflow reviews
- More configuration optimization
- Quarterly business reviews
Care is an operations plan, not an unlimited development retainer. New workflows and major development are scoped and quoted separately.
06 / The handoff
Everything we build is yours.
A system you cannot inspect is a system you do not own. At handoff, you get the source code, the accounts, the documentation, and the runbook. Run it yourself, or keep us on to operate it.
- Source code in your repository
- Cloud and API accounts in your name
- Architecture and data-flow documentation
- Runbook with failure and escalation paths
- Team training and a recorded walkthrough
- Two-week post-launch warranty
No proprietary runtime. No hosting lock-in.
07 / The practice
Senior work,
directly.
Feinity is a California-based AI engineering practice founded in 2026 by Fei Shen. Fei has spent 15 years building backend and data platforms, with a Master's in Computer Science. He started Feinity because small and midsized businesses need the same caliber of embedded engineering that large companies take for granted.
Every engagement is led by the engineer doing the work. No account managers, no handoff to a junior team.
Fei Shen
Founder · Forward-deployed engineer
Scope before code.
Fixed price and acceptance tests before the build begins.
Work in the open.
Weekly demos, shared docs, and no surprises.
Leave you stronger.
Your team gets the system, the training, and the runbook.
08 / Questions
The things owners ask first.
If your question is not here, ask it directly. A short call is usually faster than a proposal.
What is a forward-deployed engineer?
A senior engineer who works inside your business rather than at a distance. They observe the real workflow, build the system, and stay accountable for production. Feinity's model is one engineer from assessment through handoff.
Do we need to know what to automate?
No. The assessment starts with observation, not a tool demo. We look for work that is repetitive, measurable, and tolerant of a human check where needed.
How long until something is live?
A focused first build usually takes 2–6 weeks after the scope is agreed. Audits are shorter. The proposal sets the schedule before build starts, and you see working software every week.
What does it cost?
Audits start at $500. Project builds range from $1,500 to $15,000. Care plans start at $299 per month. Every scope is fixed before work begins.
How is this different from hiring an agency?
An agency usually separates sales, project management, and delivery. Feinity is one senior engineer from assessment through handoff. You get a fixed scope, one workflow, and a system that is documented and handed over, not a handoff chain.
Who owns the code and the accounts?
You do. We build in your repository and, where possible, under your cloud and API accounts. At handoff you receive the source code, documentation, and runbook.
Is our data safe?
We use least-privilege access, work in your accounts where possible, and document the data flow in the proposal. Client data is not used to train models without written permission. Workflows that need judgment include a human approval step.
Who pays for model and API usage?
You do, directly with the providers. We estimate usage and include it in the proposal so there are no surprise pass-through bills.
What if AI is not the right answer?
We will say so. Sometimes a rule, a form change, or a cleaner CRM setup solves the problem for less. The audit is designed to answer that before you commit to a build.
Do you work outside California?
Yes. Delivery is remote-first across the US and internationally. Work is billed in USD.
09 / Start
Tell us what
eats your week.
Bring one process: a missed call, a slow quote, a document pile, a handoff that keeps breaking. We will tell you whether an AI workflow is worth building.
Email
Phone
Mailing
2108 N St #11297
Sacramento, CA 95816
Sacramento, CA 95816
What happens next: a 20-minute call, a short workflow map, and a go/no-go. No deck, no pressure.