Software Engineer · Flutter, Dart & AI Integration

I build mobile apps—and the AI behind them.

I’m Imem, the developer behind DuoBac: a Flutter learning app for Android and iOS, with AI-powered feedback and a web administration platform.

Explore DuoBac

Jump to the moment

Chapters

Mobile experience · Firebase backend · AI integration

Proof, not decoration

7

Years building

My favorite number.

10

Products shipped

My second favorite number.

6

Clients

People I’ve worked with.

IMEMSELECTED WORK01 / 03

LATEST PROJECT · FLAGSHIP

DuoBac.

An education platform I built end to end.Education, built end to end.

My Flutter app turns Tunisian BAC Science papers into interactive practice and AI feedback.My Flutter app: BAC Science papers, interactive practice and AI feedback.

Founded, designed & engineered byBuilt by Imem.

Flutter app + admin websiteFlutter app + admin

I built the Firebase backend integration and the admin tools to upload exercises, manage users and administer subscriptions.

Flutter app + admin website

DuoBac AdminAdmin concept preview

Upload exercise

Exercise documents, all in one place.

Your documents

BAC Science

Document · PDF

DuoBac app screen preview: Practice
Upload exercises · Manage users · Subscriptions
Users
20K
App rating
4.7/5

Live on iOS & Android

Google PlayApp Store

Figures & availability: owner-provided · Store links to be added

Explore how I built it

Practice. Understand.
Come back stronger.

From static BAC papers to interactive practice, AI feedback and visible progress.Science practice. Feedback on your answer.

01 · Practice

Read the document. Label it. Write your answer.

une coupe partielle d’un testicule d’un mammifère
  • spermatozoïde ✓
  • spermatocyte II ×
  • cellule de Leydig ✓
  • lumière du ts ×

la reponse est une testicule pubere car la presence de spz

Conseil : citez des éléments précis du document

02 · Understand

03 · Track progress

See strengths, weaknesses and practice history.

▥   ProfilDétail ›

Tes compétences

Compétences à travaillerJustification

Know your strengths. Work on your gaps.

Go beyond the result: understand what supports your reasoning.

See how the AI works

App excerpts · example learning data

One SDK.
From answer to feedback.

SDK = Software Development Kit.
My reusable Dart layer for AI grading.
Routing, retries and typed results.

Illustrative request

Written-answer practice

  • QuestionThe task to solve
  • Expected answerThe reference answer
  • CriteriaWhat earns credit
  • Student answerTheir own reasoning

Shared French rubric + JSON schema

FilterRankRoute
  • Eligibility · capability · circuit health
  • Health → tier → cost → latency → priority
  • Bounded retries + eligible fallback

Configured integrations

GeminiFirebase Vertex
OR
OpenAI
Anthropic
Authenticated gateway

Typed feedback

  • score
  • strengths
  • weaknesses
  • what_to_improve

Select a stage to inspect

Featured Projects

Two selected products that connect responsive Flutter interfaces with persistent data and backend services.

Scroll to explore
Habit Tracker concept presentation with responsive web and mobile progress interfaces01 / 02

Responsive tracking · Web + mobile

Habit Tracker

A responsive habit-tracking experience for reminders, target dates, countdowns and timers, with local SQL persistence and Go/PostgreSQL services.

  • Flutter
  • Go
  • PostgreSQL
  • Local SQL
View the experience
IMEMBackgroundEducation & Experience

Learning deeply.
Building in the real world.

Software engineering, from university to production.

Work Experience

01 / 05

Read at your own pace, or jump to a company.

  1. –

    Founder & Flutter Mobile App Developer

    DuoBac

    DuoBac · Self-employed

    Self-employed · RemoteFrankfurt, Hesse, Germany

    AI-powered learning app for Tunisian Baccalaureate preparation, built with Flutter, Dart and Firebase.

    • Built a Flutter app with Clean Architecture, Riverpod and go_router, using JSON-driven lessons, quizzes, drag-and-drop activities and written-answer QReply exercises.
    • Integrated Firebase AI and Gemini to evaluate answers against reference content and criteria, then return scores and structured feedback.
    • Added SQLite progress tracking, Firestore-synced skill analytics, learner profiles and skill-based drill queues.
    • Connected Firebase authentication and operations services, with unit and widget tests for evaluation, retries, grading states, persistence and skill analytics.

    Flutter · Dart · Riverpod · Clean Architecture · go_router · SQLite · Firebase · Gemini · Firestore · Cloud Functions · Crashlytics · Dio · Fastlane · Unit testing · Widget testing

  2. –

    Mobile Application Developer

    Sofrecom · Media

    Sofrecom Tunisie

    Full-timeRemote

    Modular Flutter media and telemetry platform with native processing, AI routing and production delivery workflows.

    • Built a Melos-managed Flutter monorepo that separated media and dashboard features from shared database, networking and UI packages.
    • Developed GPU-accelerated media previews with GLSL and RenderObjects, plus Dart FFI and isolate pipelines for processing, downsampling and SHA-256 hashing.
    • Integrated an AI gateway for Vertex AI, Anthropic and OpenAI, with RevenueCat entitlement checks and Firebase Storage uploads for premium exports.
    • Engineered EventChannel and Dart FFI telemetry ingestion with isolate-based parsing, Drift storage, BLoC state machines and custom canvas visualizations.
    • Added persistence migrations, Firestore synchronization, Crashlytics breadcrumbs, CI/CD validation, SSL pinning and secure key storage.

    Flutter · Dart · Melos · BLoC · Drift · SQLite · Dart FFI · Isolates · EventChannel · GLSL · Vertex AI · Anthropic · OpenAI · RevenueCat · Firebase · Fastlane · Codemagic · CI/CD

  3. –

    Flutter Engineer

    Sofrecom · Finance

    Sofrecom Tunisie

    Full-timeOn-site

    Offline-first finance and asset-management app with synchronized transactions, guarded navigation and tested release workflows.

    • Structured the app with feature-driven Clean Architecture, Data, Domain and Presentation layers, plus get_it and injectable dependency injection.
    • Built an Isar-based offline mutation queue and synchronization engine for pending transactions, reconnection handling and version-based conflict reconciliation.
    • Integrated GraphQL and Dio clients for portfolio data, balances, transaction history, receipt uploads, PDF statements and authentication flows.
    • Created reusable themed UI components, guarded go_router navigation and Firebase Cloud Messaging handlers for security and transaction notifications.
    • Added unit and Alchemist golden tests, with Codemagic, Fastlane, Fastlane Match and very_good_analysis for validation, signing and release tracking.

    Flutter · Dart · Clean Architecture · BLoC · Cubit · get_it · injectable · go_router · Isar · GraphQL · Dio · Firebase Cloud Messaging · Alchemist · Codemagic · Fastlane · Jira

  4. –

    Junior Flutter Developer

    Orange · Storefront

    Orange

    Full-timeOn-site

    Full-stack e-commerce storefront with Flutter, Dart and Spring Boot, covering catalog, cart, checkout and order workflows.

    • Built product browsing, reactive cart management, authentication, checkout and order workflows in Flutter and Dart.
    • Applied layered Data, Domain and Presentation architecture with Riverpod, Dio interceptors, Freezed, json_serializable and guarded GoRouter routes.
    • Connected Figma design tokens to Flutter themes and used Hive plus shared_preferences for cached catalog, cart and lightweight preference data.
    • Built Spring Boot services with JWT security, PostgreSQL transactions, Redis caching and Kafka-based asynchronous processing.
    • Added Sentry monitoring, Slack development alerts and unit and widget tests with Mocktail and Mockito.

    Flutter · Dart · Riverpod · Dio · Freezed · GoRouter · Hive · shared_preferences · Figma Design Tokens · Spring Boot · PostgreSQL · Redis · Apache Kafka · Sentry · Mocktail · Mockito

  5. –

    Flutter Developer Intern

    Orange · Internship

    Orange

    Internship · HybridTunisia

    Responsive habit-tracking app with local SQL persistence and Go and PostgreSQL backend services.

    • Built responsive mobile and tablet layouts with responsive_framework, responsive_builder, LayoutBuilder and MediaQuery.
    • Combined Provider, ChangeNotifier and ValueNotifier state with sqflite migrations, shared_preferences and hydrated_bloc persistence.
    • Implemented validated habit forms and asynchronous reminders, target dates, countdowns, timers and notifications.
    • Developed Go services with gRPC streaming and PostgreSQL, collaborating through Microsoft Teams and Conventional Commits.

    Flutter · Dart · Go · PostgreSQL · Provider · ChangeNotifier · ValueNotifier · responsive_framework · LayoutBuilder · sqflite · shared_preferences · hydrated_bloc · gRPC · Git · Conventional Commits

IMEMPORTFOLIOYou reached the endThe end

ONE LAST THING

Hiring an engineer—or building a product?

Tell me about the role or what you want to build.

No forms. No friction. Just say hello.

Imem by the waterfront at nightAvailable to talk
Yes, I actually reply 👋

I build software, and I enjoy making technical ideas understandable.

I’ve also taught Java in English to students from Germany and Mexico.

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LINKEDINLet’s connectlinkedin.com/in/imemmOpen LinkedIn Opens in a new tabEMAILTell me about your ideamedimemhamdi18@gmail.comWrite an email Opens your email app
imem hamdi
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