Full Stack AI Mobile & Web Developer

I build AI‑native apps that ship, scale and stay secure.

I'm Abbas Ahmed. For 7+ years I've designed, built and launched iOS, Android and web products for banks, startups and agencies across the UK, Europe, the US and the Middle East. Today I lead a small senior team that adds AI agents, RAG and automation to products people already use.

7+ yrsshipping production apps
100+apps and platforms delivered
5M+downloads on apps I've engineered
100%Upwork job success, Top Rated ↗
build-pipeline · fintech-wallet-mvp
$ abbas run --brief "wallet app with AI support agent"
✓Scope, architecture & estimate48 hrs
✓Clickable Figma prototypeweek 1
✓Android Kotlin · iOS Swiftpassing
✓Node.js API · PostgreSQL · AWSdeployed
✓RAG support agent on your docsgrounded
▸CI/CD to App Store & Playreleasing
LLM agentsRAGOCRVoice AISecurity SDKs
How a typical engagement runs, from brief to store release.

Built for and with

  • Habib Bank Limited
  • Trulite Korea
  • Traxccel
  • Salasa
  • Medisport Bremmers
  • XORD
  • Opten Group
  • AANI Studio
Services

One partner from idea to App Store, with AI built in from day one.

You get a senior engineer who owns the whole stack: product thinking, native and cross platform mobile, web, backend, cloud and the AI layer on top.

Most requested

AI agents & copilots

Assistants that answer from your own data and then do the work: fill forms, raise tickets, update records.

  • RAG on policies, docs and product data
  • Tool calling agents with human approval
  • Voice ordering and bilingual chat
  • OCR extraction and verification

Mobile apps

Native Android in Kotlin, native iOS in Swift, or one React Native codebase when speed to market matters most.

  • Fintech, health, social and IoT apps
  • BLE, maps, payments, QR and push
  • Play Store, App Store and Huawei AppGallery

Web platforms & dashboards

React and Next.js frontends on Node.js backends, from marketing sites to dense operations consoles.

  • Admin panels and merchant back offices
  • SaaS products and MVPs
  • WordPress sites that convert

Workflow automation

Remove copy-paste work between your inbox, CRM, sheets and internal tools, with LLMs handling the unstructured parts.

  • n8n, Make and Zapier pipelines
  • Email and document triage with AI
  • Audit logs on every automated action

Fintech & security SDKs

Banking grade engineering: security SDKs, QR payment standards, secure networking and regulatory compliance.

  • Root, tamper and threat detection
  • QR payment SDKs to regulator spec
  • Wallets and P2P payments

Cloud, DevOps & QA

Infrastructure on AWS or GCP, CI/CD from first commit and automated tests so releases stay boring.

  • GitHub Actions and GitLab CI pipelines
  • PostgreSQL and MongoDB data layers
  • Unit, UI and API test automation
Selected work

18 products, from AI agents to banking-grade apps.

Delivered by me and my team at Abbas Ahmed & Co. Open any project for the problem, what we built and the outcome.

AI engineering

AI that does the work, not just the talking.

A chatbot on its own adds another channel to support. I build assistants that are grounded in your data, take real actions, and log everything so your team can trust them.

AppPilot assistant answering a leave balance question from company policy
Proof

AppPilot: one engine, three deployments

HR claims with OCR verification, voice ordering for restaurants, and a bilingual banking assistant.

Retrieval on your own documents

Answers come from your policies, manuals and product data, with the source attached, so nothing is made up.

RAG · pgvector

Agents that complete tasks

Multi step conversations that collect what's missing, call your APIs and create records once the user confirms.

tool calling

Document intelligence

Receipts, IDs and invoices read with OCR, reconciled against what the user declared, mismatches flagged.

OCR · extraction

Voice and multilingual interfaces

Voice ordering at the counter and assistants that work in English, Urdu and Arabic.

speech · i18n

On-device and in-app AI

Smart features inside your iOS and Android apps, from recommendations to content generation.

Core ML · ML Kit

LLM powered automation

Inbox triage, data entry and reporting pipelines that run themselves, with a full audit trail.

n8n · Make · Zapier

Model agnostic: OpenAI, Anthropic Claude, Google Gemini or open source models, chosen per use case and budget.

How we work

Clear steps, weekly demos, no surprises.

You always know what is being built, what it costs and when it ships.

Step 1

Discovery call

We map your users, goals and constraints, then I send a written scope, architecture and fixed estimate.

Within 48 hours
Step 2

Prototype

A clickable design you can put in front of users and investors before a line of production code.

Week 1 to 2
Step 3

Build sprints

Two week sprints with a working build on your phone at every demo. CI/CD and tests from the first commit.

Weekly demos
Step 4

Launch & scale

Store release, monitoring and analytics, then a support plan for fixes, features and growth.

Ongoing
Tech stack

The right tool for each layer.

Mobile

KotlinJavaSwiftAndroid SDKiOS · SwiftUIReact NativeJetpack ComposeBLE / IoT

Web & backend

ReactNext.jsTypeScriptNode.jsNestJS.NETWordPressREST · GraphQL

AI & automation

OpenAIClaudeGeminiLangChainRAG · vector searchOCRn8nMakeZapier

Cloud & DevOps

AWSGoogle CloudFirebaseDockerGitHub ActionsGitLab CIFastlane

Data

PostgreSQLMongoDBRedisRoom · Core Datapgvector

Quality & security

Clean ArchitectureMVVMUnit & UI testsMockitoApp hardeningOWASP MASVS
Experience

Banking scale engineering, startup speed.

2019 · Present

Founder & Lead Engineer · Abbas Ahmed & Co.

Full stack AI mobile and web studio serving clients in the UK, Europe, the US and the Middle East

  • Lead a team of engineers and designers delivering 100+ apps and platforms across fintech, health, eCommerce, social and IoT.
  • Top Rated on Upwork with 100% Job Success and Level 2 on Fiverr, with 13+ long term repeat clients.
  • Built AI assistants with RAG, OCR and voice for HR, hospitality and banking use cases.
Apr 2025 · Present

Lead Android Engineer · Traxccel

Data and AI services firm serving mid-market to Fortune 500 companies

  • Building a mobile security SDK for one of Bahrain's largest banks, covering device integrity and threat detection.
  • Own delivery from requirements to release with cross-functional teams.
  • Mentor engineers on building large scale, maintainable apps.
Oct 2023 · Feb 2025

Senior Android Engineer · Trulite Korea

Entertainment company in Korea, Japan and Argentina, 9 language services

  • Built the Pentacomix app from scratch and set its architecture guidelines.
  • Scaled it to 100K+ downloads and around $1M in revenue.
Feb 2020 · Sep 2023

Senior Android Engineer · Habib Bank Limited

One of Pakistan's leading banks, HBL Mobile serves millions of customers

  • Rebuilt the network layer, making request and response times 50% faster.
  • Shipped English and Urdu support for an app with 5M+ downloads.
  • Built the QR scan and generate SDK to regulator spec, now used by 80% of app users.
  • Launched HBL Mobile on Huawei AppGallery, adding 200K+ downloads.
Ways to work together

Pick the model that fits your stage.

MVP build

For founders validating an idea

Fixed scope and fixed price, from prototype to a live app in the stores.

  • Design, mobile, web and backend
  • Store submission handled
  • Analytics from day one

AI integration sprint

For teams with an existing product

Add an assistant, automation or document AI to the product you already have.

  • Use case and data audit
  • Production ready AI feature
  • Evaluation and audit logging

Dedicated team

For companies scaling a roadmap

A senior engineer or a full squad on a monthly retainer, working your hours.

  • Android, iOS, web and backend
  • Overlap with UK, EU and US hours
  • Scale up or down monthly
Contact

Have an app or AI idea? Let's scope it.

Tell me what you're building. You'll get a reply within 24 hours with questions, a rough timeline and next steps.

Project brief

Fill this in and send it on WhatsApp, or copy it into an email.

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