Founder & CEO · Revzion
Building systems that
ship, scale, and last
Building systems that
survive reality
I'm Arqam Ahmad Siddiqui. I founded Revzion and lead a team of 8 engineers building connected health, commerce and real-time systems — the kind that have to hold up in the field, not just in the demo.
Selected work below ↓
The Thesis
Most software fails in the gap between the demo and the field. Bad networks, dead batteries, real users, real load. I build for that gap first, because everything else is easier to add later.
Revzion by the numbers
Years running Revzion
Founded 2022. 6 years building production systems.
Engineers in the team
A studio, not a solo contractor. Work continues when one person is unavailable.
Product lines shipped
Connected health, clinical tooling, commerce and real-time operations.
Systems under management
Codebases actively maintained across the organisation.
Evolwe Ring
The constraint
A smart ring streams biometric data continuously, from a battery that cannot afford a chatty radio, to a phone that is often asleep, over a link that drops whenever the wearer walks into another room.
Approach
BLE transport with reconnection and backfill built into the protocol rather than bolted on. Real-time fan-out to companion apps and dashboards, shared domain logic across Android and iOS so a firmware change lands once, and an AI layer over the resulting time-series.
Hardware-to-cloud ownership: firmware boundary, mobile runtime, realtime backend and the analytics on top, built as one system.
- Kotlin Multiplatform
- BLE
- PubNub
- Node.js
- Next.js
- TypeScript
Clinical & Diagnostic Apps
The constraint
Clinical tooling is used in short, interrupted sessions by people who cannot re-enter data because the network dropped, and it carries records that must stay correct under every failure mode.
Approach
Offline-first state with deterministic sync, strict domain modelling of records, and role-based access designed before the first screen — because retrofitting permissions into a shipped clinical product is not a refactor, it is a rewrite.
Building for correctness-critical domains where a lost write is a real-world consequence, not a bug report.
- Kotlin
- Jetpack Compose
- Offline-first sync
- RBAC
Commerce & Marketplace Platforms
The constraint
Storefronts are the easy half. Catalogue, inventory, fulfilment, payments and the admin surface the operations team actually lives in are where commerce projects stall.
Approach
Modular service boundaries so catalogue, orders and payments evolve independently, with an operations dashboard treated as a first-class product rather than an afterthought.
Shipping the unglamorous 70% — the back office — which is what determines whether a commerce platform survives its first peak.
- Next.js
- TypeScript
- Node.js
- PostgreSQL
Real-Time Operations Systems
The constraint
Live tracking and dispatch look simple until you have hundreds of devices reporting at once, on mobile networks, where every stale marker on a map is an operational decision made on bad data.
Approach
WebSocket and pub/sub transport sized for concurrent device load, with backpressure and reconnection treated as the normal case rather than the exception.
Real-time systems that hold their shape under concurrency, not just in a two-device demo.
- Kotlin
- WebSockets
- Pub/Sub
- TypeScript
The Company
I run Revzion
A product engineering studio building connected health, commerce and real-time systems for teams that need them to work in the field, not the demo.
Operating since 2022, and incorporated as Revzion Global Technologies LLP on 27 August 2026. A team of 8 engineers across mobile, backend and infrastructure — 12 people have built here over the years.
A registered entity means contracts, invoicing and IP assignment are straightforward — which matters more to a procurement team than any claim on this page.
How teams work with us
Product Build
Founders and teams with a product to ship and no platform team to ship it.
Architecture Partnership
Teams with engineers already, hitting the ceiling of decisions made early.
Connected Hardware & Real-Time
Hardware and IoT teams whose device works and whose software layer does not.
Technical Due Diligence
Investors and acquirers who need a read on what they are actually buying.
Operating Model
How I make decisions
Technology choices are business choices with a longer feedback loop. These are the defaults I hold to, and the reasoning behind each one.
Full backgroundArchitecture before interface
Domain modelling and service boundaries come before visual refinement. A beautiful product on a broken model is a rewrite with a deadline attached.
Shared logic over duplicated stacks
One domain layer, native interfaces. Parallel Android and iOS logic stacks drift, and the drift surfaces as bugs that only reproduce on one platform.
Stability over novelty
Experimental dependencies stay out of production-critical paths. The interesting choice and the correct choice are frequently not the same choice.
Debt as a decision, not an accident
Shortcuts get taken deliberately, written down, and revisited on a date. Debt that nobody chose is the kind that compounds unnoticed.