Flutter / Dart · VS Code Developer Tooling · Android · Backend Engineering
Flutter/Dart development since July 2025 · Published Android app · Paid client pilot
Reproduce the bug. Understand the cause. Ship the fix. Prove it works.
Seven verified merged engineering contributions to Flutter, Dart-Code and Apple-maintained Pkl tooling · Open to paid remote junior and contract engineering.
Engineering portfolio · Repositories · LinkedIn
Based in Egypt · Available for paid remote roles, contract work and focused engineering projects.
7 verified merged upstream engineering PRs as of 7 November 2026. Real bug fixes and regression tests accepted after upstream review. Every link points to the corresponding public code, discussion, and merge record; contributions do not imply employment by the projects or their parent organizations.
| Contribution | Engineering impact | Merged upstream |
|---|---|---|
| Flutter Core / Web Engine | Fixed initial accessibility value/range synchronization when a previously disabled slider becomes enabled; reviewer-validated regression coverage | flutter/flutter #195564 |
| Dart-Code / VS Code | Fixed hidden ancestor directories breaking Dart test filtering and pubspec.yaml handling |
Dart-Code #6301 |
| Dart-Code / SDK discovery | Added SDK search-precedence tests, including Flutter, Fuchsia, PATH, and Bazel fallback; removed obsolete DART_PATH_OVERRIDE handling |
Dart-Code #6337 |
| Apple / pkl-neovim | Corrected nested Pkl language-server settings and added a headless Neovim regression harness | apple/pkl-neovim #75 |
| Dart-Code / Package testing | Expanded automated coverage for package commands and pubspec.yaml update guards, with maintainer-requested test isolation |
Dart-Code #6332 |
| Dart-Code / Project creation | Added 12 tests for dart.createProject, SDK configuration, cancellation and error paths |
Dart-Code #6324 |
| Dart-Code / DTD lifecycle | Fixed async event and service callbacks that could run after VS Code extension disposal; added regression coverage and responded to maintainer review | Dart-Code #6349 |
The Apple contribution is to an Apple-maintained open-source repository, not a claim of employment or affiliation. AI assistance was disclosed where applicable, and links provide the independently reviewable engineering evidence.
↗ Explore verified engineering case studies · Discuss a paid remote role or contract
| What broke | Fix & validation | Public proof |
|---|---|---|
| Flutter Web accessibility (merged): enabling a previously disabled slider could leave incorrect initial screen-reader value/range attributes. | Corrected the Web semantics initialization path, added regression coverage, and incorporated reviewer feedback. Merged 4 Nov 2026. | Flutter #195564 — merged diff & reviews |
| Flutter Web scrolling semantics (human-approved; not merged): after a scrollable list shrank, stale semantic DOM offsets made clicking the painted Row 4 activate Row 2. | Corrected stale offset handling and added regression checks. Reviewer flutter-zl independently verified the before demo and after demo, then approved the PR. It is still open. |
Flutter #195578 — approval & diff |
| Dart-Code / DTD lifecycle (merged): asynchronous device and service events could outlive VS Code extension disposal and trigger errors. | Added lifecycle guards and regression coverage for shutdown/disposal races, worked through maintainer reviews, and landed the fix on 5 Nov 2026. | Dart-Code #6349 — merged code & review |
Status snapshot: 7 November 2026. The scrolling fix #195578 is approved but not merged; the DTD lifecycle fix #6349 is merged. CI, draft status and human approval are not merge records. I distinguish shipped work, upstream merges, private client delivery and in-review submissions.
My workflow: reproduce a real failure → write a focused regression → fix the smallest safe path → run tests and static checks → address technical review. This is also how I work on production Flutter apps and backend APIs.
Explore the detailed case studies on my portfolio →
A published Flutter Android application for Quran reading, adhkar, tasbih, prayer times, and daily spiritual tools. Built and maintained with practical experience in production debugging, Firebase, mobile release engineering, and monetization.
Production evidence: Open Tasbehati on Google Play · Android production release · Source is private.
| Engineering strengths | Real-world scope |
|---|---|
| Mobile delivery | Android app release and ongoing maintenance |
| Debugging & reliability | Crash fixes, regression analysis, and UI behavior |
| Integrations | Firebase, REST APIs, and mobile ads |
| Testing | Focused regressions, release checks, and device validation |
13 open external PRs, including four Drafts, as of 7 November 2026. This is a dated snapshot, not a claim of approval or merging. Check the live GitHub PRs.
| Upstream | Engineering change and review state | Evidence |
|---|---|---|
| Flutter / Web accessibility | Fixed stale semantic scrolling offsets; approved by flutter-zl, internal Google tests rerunning |
flutter/flutter #195578 |
| Flutter / Sliver semantics | Exclude pinned children pushed outside a group's visible region; awaiting human review | flutter/flutter #196016 |
| Flutter / Native assets | Repair macOS otool architecture parsing for paths with parentheses; Draft |
flutter/flutter #196060 |
| Flutter / Accessibility checks | Detect unnamed link semantics nodes; Draft, awaiting design agreement | flutter/flutter #196080 |
| Dart-Code / DTD requests | Settle pending calls and guard sends when sockets close; Ready for Review, CI green | Dart-Code #6367 |
| Dart-Code / DTD messages | Log unobserved asynchronous message-handler failures; Draft, CI green | Dart-Code #6372 |
| Dart packages / pool | Restore repeated pending-request timeouts; approved by sigurdm |
dart-lang/tools #2763 |
| Dart packages / pub_semver | Safely subtract empty version constraints; awaiting human review | dart-lang/tools #2797 |
| Dart packages / mime | Correct Ogg, binary glTF and PostScript signatures; Draft, focused tests passing | dart-lang/tools #2802 |
| Flutter DevTools / Layout | Prevent Network toolbar overflow on small screens; feedback addressed, follow-up review pending | flutter/devtools #10057 |
| Flutter DevTools / Build | Prune unused engine assets in extension builds with regression tests; waiting on reviewers | flutter/devtools #10063 |
| Apple Pkl / Packaging | Preserve Kotlin reflection while shading fat JARs; awaiting human review | apple/pkl #1961 |
| React Native / Android Gradle | Generate variant-specific PackageList classes; CLA signed, pending human review | react/react-native #59739 |
| Project | Evidence and scope |
|---|---|
| FamilyMove / family fitness (private client pilot) | Flutter Android + Laravel backend, family accounts, push notifications, reporting and production-oriented QA; private client work, not a public release |
| VoiceOps Controller | Python / FastAPI infrastructure control, human confirmation for actions and regression testing |
| voxguard / PauseSignal | Flutter voice-scam risk prototype with family alerts; experimental, not a validated detector · Demo |
| Zero-Day AI Auditor | Experimental Solidity checks with local Anvil simulations; no claim of discovered zero-days |
Especially interested in: Flutter internals, accessibility, editor integrations, automated tests, Python APIs, CI reliability, and authorized security research.
Available for: paid remote Flutter / Dart development, Android engineering, developer tooling, testing, Python APIs, Laravel backends, and focused contract projects. Based in Egypt.
| Contact | Direct link |
|---|---|
| abdelrhmanmahrous386@gmail.com | |
| Phone | +20 10 6747 5499 |
| Chat on WhatsApp | |
| Telegram | Chat by phone number |
| Professional profile |
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