Abraham JeyarajGet in touch ↗
Index · 2026 Open to consulting & advisory

Twenty-five years turning hard engineering problems into shipped products.

Based inUnited States

I'm Abraham — a technology leader who's scaled mobile platforms to 60M+ downloads, led 90-person engineering orgs at Fortune 4 scale, and shipped industry-firsts including Day-1 Apple Pay and barcode prescription refills. Today I build AI-powered products and advise enterprises on the convergence of mobile, AI, and agentic systems.

60M+
Lifetime downloads (Walgreens iOS)
$5B+
Mobile commerce shipped
200+
Releases with zero critical escalations
25y
Across iOS, Web, AI, Architecture
01Expertise

What I do, refined over twenty-five years.

01AI & Intelligence

Agentic systems, on-device ML, intelligent automation

  • OpenAI APIs & LangChain
  • On-device inference (whisper.cpp, Core ML)
  • Computer vision & NLP
  • TensorFlow / PyTorch
  • Retrieval-augmented workflows
02Mobile at scale

iOS & Android, from first commit to 60M users

  • Swift / Objective-C / SwiftUI
  • Kotlin / Java / Android
  • React Native
  • Clean Architecture · MVVM · VIPER
  • CI/CD with Fastlane, Jenkins, GitHub Actions
03Full-stack & cloud

React, Node, TypeScript, AWS & Azure

  • TypeScript · React · Node.js
  • Python · RESTful · GraphQL
  • AWS · Azure · Microservices
  • Docker · Kubernetes · SPM · Gradle
  • OAuth 2.0 · Certificate pinning · Auth0
04Leadership

Architecture strategy, 90-person orgs, enterprise delivery

  • Mobile platform architecture
  • Cross-functional team leadership
  • Release management at scale
  • Digital transformation programs
  • Patent holder · US 10,474,400
02Selected Work

Three decades of shipped work, consequential at scale.

01
2010 — 2020 · Walgreens / Photon
Associate Vice President, Engineering

From first launch to 60 million downloads.

Led the Walgreens iOS app from its initial release to one of the highest-grossing retail apps in the App Store — 5 stars, 60M+ lifetime downloads, $5B+ in mobile commerce, and a shelf of firsts that reshaped retail pharmacy.

  • Day-1 Apple Pay launch partner (Oct 2014) across 8,200+ retail stores.
  • Refill by Scan — pioneered barcode-based pharmacy refills, now industry standard.
  • First retailer NFC loyalty on Apple Pay & Android Pay.
  • Apple Watch medication-adherence app, featured in Apple's launch materials.
iOS · Lifetime downloads
2014 · Apple Pay2017 · Refill Scan2020 · 60M ↑
2010201420172020
Team90-person cross-functional engineering org
PlatformsiOS, Android, Web, BlackBerry, Windows
Releases200+ shipped · zero critical escalations
Downloads60M+ lifetime (iOS)
Commerce$5B+ mobile GMV
RecognitionSXSW Appy Award · Apple Top 100 Apps
02
2020 — 2021 · Photon / DSG
Architect

One codebase, two national retailers, 780 stores.

Architected the white-label mobile platform powering Dick's Sporting Goods and Golf Galaxy from a single codebase. Store Mode — a geolocation-powered in-store experience — deployed across all 780+ locations.

  • Geofencing + BLE indoor positioning for aisle-level guidance.
  • Shared analytics and feature-flag pipeline across both tenants.
  • Reduced per-release QA surface by ~60% vs. two-app baseline.
Single codebase → 780 stores
COREDSGGolf Galaxy780+ STORE DEPLOYMENTS
ScopeWhite-label platform · 2 national retailers
Deployment780+ stores (Store Mode)
CustomersContributed to 12.5M new customers
StackiOS · Android · Node services
PatternSingle codebase, theme-injected per tenant
03
2021 — 2025 · CVS Health
Lead Director, Digital Architecture (Mobile)

Mobile architecture for Fortune 4 healthcare.

At CVS Health ($350B+ revenue), I led the mobile digital architecture strategy — setting enterprise dev standards, directing cross-functional teams across consumer health and pharmacy surfaces used by tens of millions of Americans.

  • Standardized clean-architecture patterns across the mobile estate.
  • Introduced modern security posture — cert pinning, OAuth 2.0, SPM adoption.
  • Drove reuse between consumer and pharmacy surfaces; removed duplicate stacks.
Enterprise mobile architecture
CONSUMERPHARMACYMINUTECLINICEXTRACARESHARED MOBILE PLATFORM · CLEAN ARCHOAUTH 2.0CERT PINNINGHIPAA · PCI
ScaleFortune 4 · $350B+ revenue
MandateEnterprise mobile dev standards
SurfacesConsumer health · pharmacy · MinuteClinic
FocusArchitecture · security · modernization
ComplianceHIPAA · PCI · regulated workloads
03Current Products

Two indie macOS apps I built and ship alone.

Status
Shipping · v1.2
Platform
macOS · menu bar
Works with
Logic Pro · Cubase · Ableton · Reaper · any MCU DAW
Hardware
PreSonus FaderPort Classic (2008)
Footprint
115 KB binary · ~6 MB RAM

Fader MCU

Audio / Hardware bridge

A second life for the 2008 PreSonus FaderPort Classic — translating its proprietary protocol into Mackie Control Universal, so the hardware works with every modern DAW, not just Pro Tools.

A tiny menu-bar app that sits between the hardware and your DAW and translates, in real time, to MCU. Motorized fader sync, touch sense, transport, pan encoder with debounce, per-channel mute/solo/arm, master fader mode, proper LED feedback.

Live demo
USB MIDI
Vox Ld40dB
SOLO
MUTE
READ
WRITE
ARM
ARM
ARM
ARM
▸ SESSION · 0148kHz / 24-bit
01 Kick
22
02 Snare
56
03 Vox Ld
40
04 Bass
48
05 Gtr L
68
06 Synth
34
◉ MCU · CH 1-8◈ TOUCH ACTIVE
Get Fader MCU Watch 90-sec demo
Status
Public beta · v0.9
Platform
macOS 13+ · menu bar only
Hotkey
F5 default · fully configurable
Engines
Apple Speech · whisper.cpp (offline)
Built in
C++ · Objective-C++

Dicta

Voice-first dictation

A lightweight app that lives only in the menu bar — no windows, no chrome. Hold F5 (or any key you pick), speak, release; the text lands exactly where your cursor is.

Apple Speech for low-latency transcription by default, with an optional offline path through whisper.cpp for when privacy is non-negotiable. Written in C++ and Objective-C++ so the footprint is small and the response is instant.

Menu bar · hold F5
TextEditFileEditFormat
10:42
Hold F5 to dictate
Speech Engine›
Launch at Login
⊠Quit Dicta⌘Q
Hold F5
Untitled — TextEdit
Cursor is here. Press and hold F5 anywhere on macOS.
Try Dicta Download beta
04Writing

On AI safety, mobile, and the craft of shipping.

May 2026Ollama Finally Has Competition: A Weekend with oMLXAI & Infrastructure ↗Mar 2026CleanMyMac Is Going to Hate Me for Writing ThisDeveloper Tools ↗Feb 2026Unlearn to Unlock: Getting the Most Out of AI in 2026AI & Innovation ↗Jan 2026When AI Hallucinations Spark Real InnovationAI & Innovation ↗Dec 2025AI-Assisted Supply Chain Poisoning: A New Attack VectorAI Safety ↗

See all 16 essays →

05CV

Trajectory — and the receipts.

Download résumé · PDF
2025 —AI Developer & Technology ConsultantSelf-employed
2021 — 25Lead Director, Digital Architecture (Mobile)CVS Health
2007 — 21Associate Vice President, EngineeringPhoton · Walgreens engagement
2000 — 07Senior Technical Lead / Frontend ArchitectEF Education First · various
1999 — 00FounderWeb hosting & digital agency
1996 — 99BBA, Business AdministrationMadurai Kamaraj University

Open to consulting, the right full-time role, or acquisition conversations.

hello@abrahamjeyaraj.comEmail linkedin.com/in/abrahamjeyarajLinkedIn github.com/abrahamjeyarajCode abrahamjeyaraj.com/articlesWriting