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HPN Studio
Product engineering studio

Ship the software.
Not just the prototype.

Senior engineers for founders, fast-moving teams, and agencies. Production MVPs, high-stakes product rescue, and business automation — scoped before kickoff.

Start a Project View the Work
  • Live SaaS in market
  • Direct engineer access
  • Fixed-scope sprints
In production
TypeScript React Native Spring Boot PostgreSQL AWS Stripe Connect Python OpenAI Docker Telnyx Redis Astro Node.js TypeScript React Native Spring Boot PostgreSQL AWS Stripe Connect Python OpenAI Docker Telnyx Redis Astro Node.js

Engagements

Three ways to work with HPN.

Transparent, fixed-scope engineering. Pick the model that matches the milestone.

01 Unfinished → release

Product Rescue

Finish what already exists. Inherited code, stalled MVPs, and launch blockers.

$3.5k–$7.5k typical
Tell Us What’s Stuck
02 Blueprint → product

MVP Development

Turn a validated idea into a production product people can actually use.

$10k–$25k+ typical initial builds
Start an MVP
03 Your client · HPN engineering

Agency Partners

Your client. Your relationship. HPN handles the engineering.

Custom quoted scoped per project
Discuss a Partner Project

Selected work

The product is the proof.

Live production software — real users, real payments, real infrastructure.

EasySched dashboard
https://easy-sched.com
EasySched booking interface

Production SaaS

EasySched

Scheduling and payments spanning mobile apps, web portal, Spring Boot, Stripe Connect payouts, and AWS.

React Native · Spring Boot · PostgreSQL · Stripe · AWS

View case study
LeadProc conversation flow
https://leadproc.com
LeadProc product site

AI telephony

LeadProc

Missed-call interception and lead routing — Telnyx telephony, AI conversation handling, and resilient pipelines.

Telnyx · OpenAI · TypeScript · Node.js · PostgreSQL

View case study

Product Rescue

Stalled product → working release.

Already have code, a prototype, or a half-built app? The job is to get it across the finish line — after an engineering diagnostic, not before one.

Tell Us What’s Stuck

Stalled

Incomplete system

  • Half-built screens
  • Missing payments
  • No release path

Review

Engineering intervention

  • Read the codebase
  • Define the finish line
  • Scope the sprint

Shipped

Working release

  • Production build
  • Integrations live
  • Someone can operate it

Business Automation

Need to automate the business instead?

Your team shouldn’t be the integration layer. HPN connects the systems, approvals, data, and repetitive workflows your team still moves by hand.

Typical automation projects $3.5k–$15k+

Explore Business Automation

A workflow, a check, and an exception path — approval stays where judgment is required.

  1. System A
  2. Workflow
  3. Validation
  4. Approval
  5. System B
Manual work puts people, spreadsheets, and inboxes between two systems. The automated path is a workflow with validation, an exception branch, and human approval where it is still required.

Capabilities

Engineering across the product lifecycle.

From the data model to the client surface — senior execution at every layer that has to ship.

Product Engineering

Production web applications, SaaS, and the systems that make a product real.

Mobile Applications

iOS and Android from one React Native codebase, including completion of stalled apps.

Backend & APIs

Spring Boot, Node, PostgreSQL, auth, and the data model the product actually needs.

Payments & Subscriptions

Stripe, Connect, billing, and payout flows — not a checkout plugin dropped in late.

AI Features & Integrations

Assistants, qualification flows, and AI features wired into a real product, not a demo.

Cloud & Production Systems

AWS, deployment, monitoring, and the unglamorous work that keeps a release stable.

Delivery

How the work actually happens.

Sprint-based delivery designed to kill scope drift and put working software in front of you.

  1. 01

    Understand the product

    We review what already exists — code, designs, requirements, or a live system — and the outcome you actually need.

  2. 02

    Define the build

    Scope, constraints, and a clear picture of what ships. Work does not start against a vague brief.

  3. 03

    Ship in visible increments

    You see working software as it lands, with progress tied to the agreed scope.

  4. 04

    Launch and stabilize

    Release, fix what production reveals, and leave the product in a state someone can operate.

View full delivery approach

How HPN is run

Direct technical ownership.
No layer between the brief and the code.

You work with the engineer responsible for delivery. Scope is written down before kickoff. Communication stays technical, specific, and accountable.

Hands-on engineering

Direct access to the engineer responsible for the build.

Project-based delivery

Fixed-scope engagements. Not a bench of unused hours.

Defined before kickoff

What ships, what it costs, and what is out of scope — in writing.

Investment

Typical product project investment.

Final pricing depends on scope and technical requirements.

Key Scope Factors

  • Current product state — prototype, inherited repo, or greenfield
  • Feature scope and how many surfaces ship in the first release
  • Integrations: payments, telephony, calendars, third-party APIs
  • Mobile, web, or both
  • Quality of inherited code, if any
  • Launch requirements: stores, production infra, handover
Product Rescue typical
$3.5k–$7.5k Explore scope
MVP Development typical initial builds
$10k–$25k+ Explore scope
Agency Partners scoped per project
Custom quoted Explore scope

FAQ

Common questions before we start

Straight answers on fit, cost, and how a project actually starts.

What does HPN Studio do?

HPN Studio is a product engineering studio. The primary product work is MVP development, product rescue, and white-label builds for agencies. A separate lane — Business Automation — is for operating businesses that need repetitive workflows connected across existing systems. Mobile, backend, payments, AI, and infrastructure support those engagements.

What do typical projects cost?

Typical project investment is $3.5k–$25k+. Product Rescue usually sits in the $3.5k–$7.5k range. MVP Development is typically $10k–$25k+ for an initial build. Business automation typically ranges from $3.5k–$15k+. Agency partner work is custom quoted. Final pricing depends on scope and technical requirements.

What’s the difference between Product Rescue and MVP Development?

Product Rescue assumes something already exists — a prototype, repo, or unfinished app — and the job is to get it across the finish line. MVP Development is an initial production build from a validated idea, designs, or a serious brief. Rescue is typically $3.5k–$7.5k. Initial MVPs are typically $10k–$25k+.

Do you take on every project?

No. Existing products are reviewed before a rescue is committed. MVPs need a real problem and enough signal to scope a production build. Automation is scoped only when the workflow is actually worth automating. If the work is not a fit, we say so rather than force it into a published price range.

How does a project typically start?

Fill out the project form or email directly. We review what exists — code, designs, a prototype, or a brief — then write a scope and estimate. Work does not start against a vague request.

Do you work with agencies?

Yes. Agency partner work is project delivery: frontend, backend, mobile, payments, integrations, and infrastructure behind the partner’s client relationship. White-label-capable and NDA-friendly. Terms are set per engagement.

If the product needs to ship, start here.

Tell us what exists, what’s stuck, and what needs to go live. We respond with a clear next step.

Start a Project View the Work