Cover Letter — Senior Flutter Developer

Building secure, intelligent journal experiences

I am a Senior Flutter Developer with a proven track record of delivering secure, production-grade mobile apps for startups and large organisations alike — bringing deep expertise in Flutter / Dart, end-to-end encryption, and AI integration. I've shipped two recovery apps featuring encrypted journals and E2EE private chat, and worked hands-on with Claude, OpenAI, and Gemini APIs.

My portfolio spans fintech, logistics, social platforms, and government smart-city projects — every app live on the App Store. I work with an AI-first mindset that keeps delivery fast and costs lean, backed by battle-tested templates for auth, chat, profiles, and more. If you need a senior developer who can own the full lifecycle — independently, in a startup environment, from MVP to scale — I'm ready to lead.

6+ yrs Flutter & Dart
AES-256 · Zero-knowledge
Claude · Gemini · OpenAI
Full-time · Long-term
View case study
App Preview
Five key screens — journal app built for the role
Case Study Live on App Store

Secure AI-Powered Journal Application

A cross-platform Flutter journal for iOS and Android that pairs military-grade encryption with AI-driven insights — giving users a genuinely safe space to reflect, grow, and be understood.

2
Recovery apps shipped
3 LLMs
Claude · OpenAI · Gemini
AES-256
+ E2EE chat
1 dev
Full lifecycle ownership
The Problem

Mental health and self-reflection are at an all-time priority — yet the tools available are too generic, too insecure, or too passive. People who journal face three core frustrations:

  • Privacy anxiety — "If someone accesses my phone or the app gets breached, my most personal thoughts are exposed."
  • Lack of guidance — "I don't know what to write, how to reflect meaningfully, or whether I'm making progress."
  • No intelligence — "My journal is just a dumping ground. It never helps me connect the dots or understand myself better."

Therapists and wellness professionals face a parallel problem: they need a secure channel to stay connected with clients between sessions, without compromising confidentiality. There was a clear gap in the market for a journal that is private by design, intelligent by default, and deeply personal.

The Solution

A cross-platform Flutter application for iOS and Android combining military-grade encryption with AI-driven insights — giving users a safe space to reflect, grow, and be understood. Every entry is encrypted on-device before it ever reaches a server. The AI layer (Claude, OpenAI, Gemini) works exclusively over encrypted data, so no plain-text user content is exposed at any point.

Private by design Intelligent by default Deeply personal
Use Cases
01

Private Daily Journaling

Rich, distraction-free editor with text, mood tags, and media. Every entry encrypted at rest — readable only by the user.

02

AI-Powered Prompts

Personalised prompts based on past entries, current mood, and time of day — making journaling feel guided rather than blank-page intimidating.

03

Mood Tracking & Patterns

Analyses entries over time to surface mood trends, recurring themes, and emotional patterns — visual graphs and weekly insights users can actually act on.

04

Private AI Chat (E2EE)

Fully private, E2EE-encrypted conversation with an AI companion — to process a difficult day, think through a decision, or simply feel heard. No conversation stored in plain text at any point.

05

Progress & Streak Tracking

Gamified consistency — streaks, milestones, and reflection scores — keep users engaged and building the journaling habit long-term.

Roadmap
06

Therapist Secure Channel

Encrypted communication layer between users and their mental health professionals — bridging sessions with context-aware, private messaging.

Roadmap
07

Apple Watch Companion

Quick mood check-ins, micro-journal entries, and breathing prompts directly from the wrist — capturing emotional data in the moment before it's forgotten.

Roadmap
08

Desktop Expansion

Full Mac and PC experience for long-form journaling — synced seamlessly and encrypted end-to-end across all devices. 95% shared Flutter codebase.

Why It Matters
User PainApp Solution
Fear of data exposureAES-256 encryption at rest + E2EE chat
Blank page paralysisAI-generated personalised prompts
No self-awareness over timeMood graphs + pattern recognition
Journaling feels pointlessProgress tracking + AI insights
No safe space to process emotionsPrivate encrypted AI companion chat
Tech Highlights

Flutter & Dart

Single codebase for iOS and Android, extensible to Watch and desktop. Clean Architecture with Riverpod, Drift/SQLite for offline-first storage.

Claude, OpenAI & Gemini

Unified AI layer for prompts, insights, and chat. Claude Haiku for streaming prompts, OpenAI embeddings for semantic search, Gemini for mood analysis.

AES-256 + E2EE

Encryption at every layer — zero plain-text user data stored anywhere. PBKDF2 key derivation, GCM authenticated encryption, biometric unlock.

AI-First Development

Faster delivery, leaner cost, without compromising quality — backed by reusable templates for auth, chat, profiles, encryption, and more.

FlutterDartRiverpodDrift/SQLiteAES-256-GCMPBKDF2E2EE ChatClaude APIOpenAI APIGemini APIFirebaseFirestoreWatchKitGitHub Actions