From nothing,
everything.
We build products ready for real users, from a first MVP to the full platform. Fast enough to test an idea in weeks. Built well enough that you never have to start over.
Twenty years of production software for
Idea to launch in weeks.
No committees. No bloated timelines. No "phase one" that never reaches phase two. One senior team, full ownership, relentless pace.
Discovery
We learn your business in days, not weeks. Architecture, data model, and technical strategy defined before a line of code is written.
Build
Every layer, simultaneously. Mobile, web, backend, payments, infrastructure. Working software delivered weekly.
Launch
Production deployment, monitoring, analytics, and handoff. You launch with a product that works, not a project that needs more work.
Complete products.
Agencies sell you hours. We sell you a product that makes money.
MVPs That Grow Up
A first version real users can sign up for and pay through, built on the same foundations as the full product, so it grows instead of getting rewritten. Already have a prototype from an AI app builder? We make it secure, tested, and ready to scale.
Mobile Apps
iOS and Android from day one. Real-time maps, payments, push notifications, camera. App Store ready at launch.
Platforms & Marketplaces
Multi-sided systems that connect users and move money. Buyer meets seller, host meets guest, provider meets customer.
AI-Powered Products
AI as a core feature, not a gimmick. Voice assistants, intelligent automation, data pipelines, recommendation engines.
Enterprise Tools
Internal platforms, operations dashboards, analytics systems. The software your team needs to run the business.
AI-Native Engineering
AI used as a system, not a chat window — and the validation layer that keeps it honest. Staging-backed integration tests over mocks, generated changes reviewed against current state, drift audited before it bites.
Performance & Remediation
Profiling, root-cause analysis, and regression detection on products that got slow. Memory growth, cold-start stalls, main-thread contention. Fixed and verified by measurement, not assumption.
Twenty years of production software.
Two decades of consulting delivery, mostly for companies where the software already carries revenue and a regression is measured in dollars rather than tickets.
What that looks like.
Three engagements across finance, retail, and industrial systems.
Contributed to a full rebuild of Ameriprise's authentication system: registration, login, password reset, and multi-factor enrollment. Built the multi-factor enrollment screens with SMS and phone (IVR) verification, and mocked service calls in Node from the backend team's Swagger specifications so front-end work could move in parallel.
Contributed checkout features to Walmart.com, including promotional pricing and "Buy Now" flows, and the product substitution experience: when an item goes out of stock during online grocery fulfillment, the system offers alternatives instead of dropping it from the order. Wrote integration tests against mocked GraphQL, because on a checkout path you do not get to find out in production.
Data-dense visualizations of tank levels, flow rates, and alarm conditions over time for next-generation fuel-management consoles, in systems deployed across roughly 80% of North American fuel stations. Correctness and legibility under heavy data load were the entire job.
We ship our own.
The clearest way to judge a studio is what it builds when nobody is paying it to.
A cross-platform consumer application built and operated entirely in house: React Native and Expo shipping iOS and Android from one codebase, a PostgreSQL data layer with 500+ migrations, row-level security, stored functions and edge functions, a Next.js operations console with live analytics and real-time geospatial monitoring, Stripe payments, localization across 25 languages, a conversational assistant on Claude tool-use with Whisper speech-to-text, and an automated ingestion pipeline that aggregates and deduplicates event data across a large number of third-party sources.
Ready for public-sector work.
Government and institutional projects carry requirements beyond the build. We plan for them from the first day.
Defined Scope, Clear Acceptance
Deliverables with written acceptance criteria, milestone reviews, and a documented handoff. Fixed-price, deliverables-based, or hourly, matched to how you buy.
Accessibility
WCAG 2.1 AA and Section 508 built in and tested throughout the project, not added at the end.
Security
Least-privilege access, encrypted devices, multi-factor authentication, and per-client isolation. No production data on vendor devices. Access removed at close.
Responsible AI
AI speeds up delivery, under your rules. Cloud AI sees only public data unless you approve a service in writing. Sensitive code is handled by models on our own hardware. A senior engineer reviews every change.
Modernization & Integration
Legacy replacement, data migration, and integrations with the systems you already run, delivered in phases so existing services keep working.
Accountable Delivery
A senior principal engineer accountable from start to finish, an AI-native build process, and vetted subcontractors engaged per project as scope requires.
Let's build something real.
We take on a handful of projects at a time. If you have an ambitious idea and need it built right, let's talk.
Get in Touch start@exnihil.com