Product engineering services for fast and efficient delivery
One team, from architecture to maintenance. We architect and build your product. Then we integrate, run, and maintain it once it's live. Simple as that.
Industry leaders we work with
Engineering challenges we solve
Build a new product from scratch
You might need an MVP, a module, or a full platform. It must work on day one. It still has to fit your roadmap in year three. We build on foundations that support web, mobile, AI, and voice. Growth won't force a rewrite.
What you get
- Discovery with our engineers and a business analyst before code is written
- Architecture designed for your product, then built and maintained by the same team
- A product shipped on the estimate we approve together
Rebuild or modernize an existing product
The product runs your business. Every release feels like a gamble. Performance issues keep coming back. Incidents interrupt your roadmap. Nobody wants to touch the risky parts.
What you get
- A technical audit that names the bottlenecks actually slowing releases, usually not the ones your team assumed.
- Quick wins first, then incremental replacement of fragile components
- A measurable drop in incidents, release effort, and lead time
Ship faster without adding headcount
Your roadmap outgrew your team. Hiring takes months. Adding people rarely scales in a straight line. We run an AI-native process across the full lifecycle. A smaller team ships more, with quality you can still audit.
What you get
- AI-assisted specs and estimates that cut discovery-to-backlog time
- AI-augmented development and code review, with engineers owning every merge
- Delivery metrics before and after, so the speed gain is a number
Our product engineering services
Pick a single engagement or stack them as the product needs. Each one ends with something your team can ship.
Tools and technologies we master
We integrate with APIs
Stripe
Flywire
Wise
LiqPay
Google Maps
Google Places
Mapbox
OpenWeather
Firebase
SendGrid
Mailchimp
MailJet
Intercom
AWS
BigQuery
Metabase
Azure
OpenAI
We integrate with Travel APIs
TravelPort
Amadeus
Sabre
Booking.com
Expedia
Airbnb
Agoda
HotelBeds
Mews
Cloudbeds
SiteMinder
Tripian
Katanox
Hyperguest
Samsara
Geotab
EDI 204/214
We build with
Node.js
NestJS
Express.js
Next.js
React
Redux
Python
Django
FastAPI
Ruby on Rails
Sidekiq
Kafka
Airflow
MLflow
Docker
Kubernetes
WebSockets & real-time GPS streaming
Webflow
WordPress
We deliver with
Figma
Jira
Cypress
WebDriverIO
Appium
Postman
JMeter
Sentry
BugHerd
Claude Code
Playwright
BrowserStack
How we deliver solution engineering
Why choose COAX for solution engineering?
End-to-end expertise
One team owns strategy, design, development, QA, and DevOps, so you work with a single accountable partner instead of five vendors.
ROI optimization
We build only what validates your idea first, so every sprint ties to a business outcome and your budget goes further.
Speed to market
We start from proven architecture patterns and reusable components rather than a blank page, so your product reaches users sooner.
Transparent collaboration
The same team stays with you from ideation to post-launch support, and weekly syncs keep you informed without chasing updates.
100+
in-house experts
50-60%
faster delivery with reusable patterns
15+
years of engineering
50-60%
client rating on Clutch
Trusted by our clients
Dan Brooks
President, Krytter
View showcase
Bohdan Zabawskyj
Co-founder and CPO at Fortay.ai
Neil Winkworth
ex-CTPO, Location Live
View showcase
Joseph Heenan
CEO, Proteineer
View showcase
Mykola Bronitskyy
Co-founder, GrandBus
View showcase
FAQ
Depends on where you're starting. New build: a one- or two-week discovery cuts estimate variance from 50% to 15%. Live product: a zero sprint gets us ramped up fast. Already have specs: we review them in days and start.
Yes. We run a quick technical check first. Then we ship quick wins. We avoid a big rebuild unless it is truly needed.
AI assists at every phase. Engineers govern every decision and own every merge. Code and artifacts stay yours. We work under NDA and your security policies
Most projects run with 3 to 5 people, scaling up as your roadmap demands. Ramp-up is one to two weeks, covered in discovery, so the team isn't learning your product on billable time.
Fixed price for defined scope. Time and materials for an evolving roadmap. A monthly retainer for a dedicated team.
Yes. Maintenance and monitoring are part of the deal. We stay attached after launch.
What we’ll do next?
1
Contact you within 24 hours
2
Clarify your expectations, business objectives, and project requirements
3
Develop and accept a proposal
4
After that, we can start our partnership
