AS

(a) — field notes, entry 001

Portrait of Alexandros Stergiou

Building the parts of mobile apps you never notice.

I'm Alexandros — co-founder and CTO of Tapp, founder and CEO/CTO of Wanilla, and a patented inventor of configuration-driven app generation. I turn complex requirements into software that feels natural to use.

Current

Tapp & Wanilla

Co-founder & CEO/CTO at Tapp · Founder & CEO/CTO of Wanilla — two London startups led across product, commercial and technical lines

Approach

Co-founder and CTO of Tapp and founder of Wanilla — two London-based mobile startups led across product, commercial and technical lines. Patented inventor of configuration-driven app generation; fifteen years in native iOS at Ford, BP and Trainline.

Reach

London, United Kingdom
LinkedIn

Selected work

Abstract visual for Tapp project

Tapp

2025 — now

Co-founder, CEO / CTO

Growth loops, built in

Co-founder and CTO of Tapp — one tool for referral, affiliate and influencer programmes in mobile apps: tracked links that survive the app-store install, attribution back to the sharer and automated creator payouts. The replacement for Google's discontinued Firebase Dynamic Links.

Founder-led salesGo-to-marketFundraising
Visit company
Abstract visual for Wanilla project

Wanilla

2016 — now

Founder, CEO / CTO

Web apps, made native

Founded and lead Wanilla — a platform that turns web applications into production-ready native mobile apps and publishes them to the App Store, built for founders shipping with AI app builders.

RepositioningApp Store complianceIP strategy
Visit company
Abstract visual for Trainline project

Trainline

2024 — 2026

Senior iOS Developer

Travel, made native

Worked across interface, networking, data and architecture on Trainline's iOS application, using Swift, SwiftUI and server-driven UI.

SwiftSwiftUIServer-driven UI
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Abstract visual for Ford project

Ford

2017 — 2020

Lead iOS Developer

Connected cars, clearly

Led the FordPass and FordPass Pro connected-vehicle apps from architecture to implementation — vehicle status, service events, dealer and fuel finders and onboard-computer interaction.

SwiftRxSwiftCoreData
Visit company

(c) — skill taxonomy

Commercial

Founder-led B2B sales · Go-to-market strategy · Pricing & business-model design · SEO and AI-search-led inbound growth

Product & operations

App Store publishing, review & compliance · Process design and playbooks · Monetisation (IAP, paywalls, ASO) · Distributed team leadership

Corporate & finance

Fundraising (SEIS, pre-seed, VC outreach) · Financial modelling & forecasting · Equity & compensation design · Statutory administration

Technical

Swift · SwiftUI · Objective-C · UIKit · Server-driven UI · MVVM / Viper · Protocol-oriented design · TDD · Vapor / Fluent · App Store Connect · Basic Kotlin / Java

(d) — background

Computer Science

Athens University of Economics and Business, 2003—2008

Patented inventor

WO 2021/069905 A1 — configuration-driven application generation

Languages

Greek · mother tongue
English · proficient
Spanish · beginner

Experience timeline

2025 — now

Co-founder, CEO / CTO · Tapp

One tool for referral, affiliate and influencer programmes in mobile apps — the replacement for Google's discontinued Firebase Dynamic Links.

2016 — now

Founder, CEO / CTO · Wanilla

A platform that turns web applications into production-ready native mobile apps and publishes them to the App Store.

2024 — 2026

Senior iOS Developer · Trainline

Interface, networking, data and architecture across the iOS application.

2023 — 2024

Lead iOS Developer · BP

Part of the original team that architected BP's global server-driven iOS app framework, shaping regional flavours of the apps worldwide.

2022

Senior iOS Developer · Global Radio

Full-stack iOS work on the consumer app — Swift, RxSwift, Viper, SwiftUI, pair programming.

2021

Senior iOS Developer · Zenly

User-interface engineering across most of the social app's core features.

Jan — Apr 2021

Senior iOS Developer · Claro

Theme and interface updates across the iOS app following the company's rebrand.

2017 — 2020

Lead iOS Developer · Ford

Led the FordPass and FordPass Pro connected-vehicle apps from architecture to implementation — vehicle status, service events, dealer and fuel finders and onboard-computer interaction.