HIRE · BUILD LAYER

AI Application Engineer

Full-stack product engineering for AI features users actually love using.

Builds the product around the model, streaming UIs, copilots, optimistic states, latency masking, and the unglamorous full-stack work that makes AI feel instant and trustworthy.

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NDA PROTECTED/FREE TRIAL WEEK/SHORTLIST IN 24H
product · live
summarize this account
Acme renewed at 2.4x last quarter. Two open tickets, both low-sev…
✓ perceived latency 640ms · streamed
✓ feedback → eval loop, wired
# AI that feels instant

AI THAT FEELS INSTANT

WHAT THEY OWN

Concrete deliverables, not job-description poetry.

01

AI product interfaces

Chat, copilot, and generative UI patterns built for trust and speed.

02

Streaming & latency masking

Token streaming, optimistic UI, and skeletons that make slow models feel fast.

03

Full-stack feature delivery

Frontend, API, and data layer shipped as one coherent feature.

04

Feedback capture

Thumbs, edits, and implicit signals wired into your eval loop.

05

Graceful degradation

What users see when the model fails, designed, not discovered.

06

Production polish

Auth, billing hooks, rate limits, and the details that make it sellable.

TYPICAL STACKReact / Next.jsTypeScriptVercel AI SDKNode / PythonPostgresTailwindWebSockets / SSEStripe

PRICING

Pick the level, keep the senior oversight.

Junior

$2,200 /month

or $14/hr on Time & Material

AI-native from day one

Executes scoped work inside AI-accelerated workflows
Every line reviewed by a Devlyn senior before merge
Ideal for well-defined backlogs and support capacity
Start with Junior

Mid-Level

MOST HIRED

$3,300 /month

or $21/hr on Time & Material

Independent feature ownership

Owns features end to end with light oversight
Comfortable making reversible decisions alone
Ideal for steady delivery on an established codebase
Start with Mid-Level

Senior

$4,400 /month

or $28/hr on Time & Material

Architecture & judgment

Owns architecture, tradeoffs, and production readiness
Mentors your team and raises the local bar
Ideal for greenfield systems and high-stakes paths
Start with Senior

Dedicated engineers are billed monthly; Time & Material is billed hourly on tracked actuals. The free trial week applies to every dedicated hire.

YOU NEED THIS ROLE IF

Your model is good but the product experience feels like a science fair

AI features ship without feedback capture, so they never improve

Frontend and ML teams keep throwing work over a wall

BY END OF WEEK ONE

01

Shipped a streaming UI for one AI feature

02

Cut perceived latency without touching the model

03

Wired user feedback into a usable dataset

04

Fixed the ugliest failure state in the flow

OUTCOMES YOU CAN MEASURE

AI features with real adoption curves

Perceived latency users stop noticing

A feedback flywheel your LLM engineer can use

One team shipping model-to-pixel

PAIRS WELL WITH

Most teams add a second seat once the first proves out.

BEHAVIOR

LLM Engineer

from $2,500/mo

EMBED

Forward-Deployed Engineer

from $2,600/mo

BEHAVIOR

Context Engineer

from $2,100/mo

BUILD

Agentic Workflow Engineer

from $2,400/mo

START WITH A FREE TRIAL WEEK

Interview a AI Application Engineer this week.

Bring your stack, your failure cases, and your constraints. We'll shortlist within 24 hours, and you don't pay until the trial week convinces you.

Book a Discovery Call
NDA BEFORE ONBOARDING/48H REPLACEMENT/NO LOCK-IN
Hire a AI Application Engineerfrom $2,200/mo · free trial week · shortlist in 24h
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