Senior engineering for SaaS founders. One human per relationship. AI amplification by default.

We’re the team founders bring in when they need someone who’ll be in the codebase — not just on the status call. Rails, React, mobile, and AR/VR engineering for SaaS founders, CTOs, and product teams worldwide.

Our founder Volodymyr Petlovy authored the V1s of MoveitPro (now 2,000+ companies, 40,000 daily users) and HappyCo (a substantial PropTech company today) — working remotely from Ukraine, before VeViDi existed. Since 2019 we’ve scaled that practice into an 11+ engineer studio shipping Rails, React, mobile, and AR/VR products worldwide.

Most of our recent work ships under our clients’ brands, not ours — across regulated FinTech, enterprise facilities management with AR/VR, international consumer commerce, and EdTech. We collaborate directly with founders and CTOs (no account-management layers), AI-amplified delivery on every engagement, and grow engineers as part of how we work. Our identity isn’t tied to a language — it’s tied to shipping.

How we win against bodyshops and corporations: they have scale, marketing budgets, and brand recognition. We have memory, attention, real expertise on the keyboard, and the honesty to tell you when you don’t need us. Founders we shipped V1s with come back years later to scale or rebuild — that kind of relationship is the moat. Same instinct shows up on the side: our founder runs ADnull, a consumer DNS-level ad blocker on subscription. AI tooling makes it faster; senior judgment makes it right.

Let’s Talk

Our services

From first commit to ongoing engineering — and rebuilding legacy products founders thought they were stuck with. Every service delivered with senior judgment and AI amplification.

Legacy Modernization

Old Rails versions, inherited PHP monoliths, jQuery/Angular 1 frontends — we read the code at scale, backfill missing test coverage, and ship a modern, maintainable rebuild. AI‑augmented delivery turns what used to be 6‑month rewrites into weeks. 15+ years of Rails depth behind every architectural call.

Web Development

Ruby on Rails and modern frontends — clean, fast, maintainable web apps. 15+ years of Rails depth across SaaS, FinTech, EdTech, proptech, and e‑commerce. We ship V1s with founders and scale them for the long haul.

Mobile Apps

Cross‑platform React Native and native iOS/Android. Built for performance, usability, and the realities of long‑lived consumer and enterprise products.

AR/VR & Unity

Microsoft HoloLens and Meta Quest applications for enterprise facilities management, training, and product visualization. Unity‑based 3D experiences shipped under whitelabel for proptech and industrial clients.

AI / LLM Integration

OpenAI integration, model orchestration, RAG, multi‑modal pipelines. Our founder built and ran a multi‑modal LLM product (Resonans.ai) before ChatGPT supported file upload natively — real production experience, no marketing fluff.

Cloud & Infrastructure

AWS, Google Cloud, and Heroku in production every day. Containerized setups with Docker when it fits. Observability and security cleanup as part of the work, not a separate engagement.

API Development & Integration

Rails APIs powering mobile experiences and partner integrations. Stripe, Twilio, Sidekiq, Shopify, SAP, NetSuite, QuickBooks — secure, well‑tested, built to last.

Project Rescue & Ongoing Engineering

Inherited a fragile codebase? We stabilize it, modernize it, and run it long‑term. NOVEM Gold went from buggy live product to zero Sentry alerts in months. Long engagements are the norm.

Tech Stack

Ruby on Rails

React

React Native

Vue

TypeScript

Python

Go

Node JS

Unity / AR/VR

AWS / GCP

Docker

OpenAI / LLM

Recent Work & Testimonials

A few of the named clients we can talk about publicly. Most of our recent work ships under our clients’ brands, not ours — across regulated FinTech, enterprise AR/VR, international consumer commerce, and EdTech.

What clients have said about working with us:

“ I've worked with Volodymyr years ago and had great results! I hope to be able to find a way to work together again soon. “

Jindou Lee

from HappyCo, Australia, CEO/Founder

“ Just wanted to say thank you. We became a success and I know you helped a bunch in the beginning. We have over 2000 moving companies using us now and 40,000 daily users “

Jason Bergenske

from MoveitPro, USA, CEO/Founder

“ Thank you for coming in to rescue this project!
I truly appreciate it! “

Artika Sulaiman

from The Perfect Plan Pte Ltd, Singapore, CEO/Founder

“ It's been a pleasure working with VeViDi.
They've been careful and attentive in helping us achieve our goals. “

Omari Harebin

from SuperJack, a Squarespace extension for eCommerce, Washington DC, Founder

Have a product to build, scale, or rebuild? Let’s talk.

Our Team

Ruby on Rails, React, Unity, and AR/VR engineers based in Ukraine. We love talking with smart, open‑minded people — say hi.

Volodymyr Petlovy

CEO/Founder, Senior
Ruby On Rails Team Lead

Alina Petlova

Co-Founder,
Financial Accountant

Vitalii

Senior Ruby on Rails/Fullstack Developer

Slavik

Ruby On Rails Developer

Anton

Ruby On Rails Developer

Roman

Senior Frontend/React Developer

Andrii

Senior Frontend/React Developer

Bohdan

Senior Unity Developer

Roman

Ruby On Rails Developer

Vitalii

Ruby On Rails Developer

Ihor

React/ReactNative Developer

You ??

Contact Us

We’re Hiring

Engineers who like shipping. AI-amplified delivery is the default — senior judgment, modern tooling, every day. We grow engineers as part of how we work.

Ruby on Rails Developer

Requirements:full‑time, spoken English, comfortable owning a Rails API end‑to‑end, open‑minded
Your role:ship features, improve performance, modernize legacy code, work directly with founders
Bonus points:TypeScript, React/Vue, high‑load systems, AWS infrastructure, hands‑on with LLM tooling
We offer:a friendly team, direct collaboration with the client, flexible hours, office in the city center, remote work is OK, AI‑augmented workflow as default, and competitive compensation for the right candidate.

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Tell us what you’re building, what’s broken, or what you’d like to modernize. We typically respond within one business day.