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Tamunotonye Davies-manuel

@tamunotonyedavies-ma

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Full-stack engineer shipping AI-first products across mobile, web, and backend—turning platforms into real-user impact.

Nigeria

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What I'm looking for

I’m looking for an AI-first full-stack role where I can own platform architecture end to end—building mobile, web, and backend together, shipping to real users, and driving reliability through observability, testing, and fast release cycles.

I’m a full-stack engineer with 6+ years shipping production software across mobile, web, and backend. I’ve led mobile teams, owned platform architecture, and built backend services and AI pipelines that power the products I work on—treating the stack as one surface, not two.

Most of what I’ve shipped reaches real users at scale: an AI-first cloud POS processing at 99.9% uptime, a digital business-card SaaS now serving 250,000+ users across 10,000+ companies, and fintech/crypto payment platforms reaching $80M+ volume. I focus on reliability, observability, and automation—building APIs, wallet integrations, release pipelines, and tests that cut crashes and improve MTTR.

Experience

Work history, roles, and key accomplishments

Current

Senior Engineer

Current

Palomasoft

May 2024 - Present (2 years 1 month)

Architected and shipped an AI-first cloud POS in Flutter across iOS, Android, Web, and Windows with 95%+ code reuse, cutting cross-platform deployment time by 50%. Built a unified Platform Channel API integrating 20+ hardware models, boosting transaction speed by 15%, and improved reliability to 99.9% uptime while reducing incident resolution time by 40%.

Flutter Dart Windows Development Hardware Integration API Design Observability

Lead Mobile Developer

Spreadly GmbH

Nov 2023 - Mar 2024 (4 months)

Shipped an AI business-card scanner that drove 630% lift in user follow-ups and built Apple Wallet + Google Wallet integrations as flagship features. Led a Flutter mobile team delivering 5-star app ratings, establishing i18n for 3+ languages (scaled to 13), and writing 1,000+ tests (55% coverage) to reduce production bugs by 35% while cutting bug resolution time by 60% using Crashlytics and PostHo

Flutter Dart Unit Testing Integration Testing Firebase Crashlytics PostHog Release Engineering

Senior Mobile Developer

ProDevs Outsourcing Inc.

Aug 2022 - Nov 2023 (1 year 3 months)

Directed end-to-end development of multiple client MVPs scaling to 200,000+ cumulative users and led an architectural rewrite of Kusnap that increased product usage by 65%, improved stability by 25%, and lifted retention by 8%. Rolled out biometric authentication cutting authentication time by 30% and built a production monitoring + bug tracking pipeline (Google Analytics, Crashlytics, Bugsnag) to

Flutter Mobile Architecture Performance Monitoring Google Analytics Firebase Crashlytics Bugsnag Release Troubleshooting

Mobile Developer

4traderX Inc

Feb 2022 - Aug 2022 (6 months)

Led the architectural pivot from a P2P currency exchange into a full banking platform, increasing customer retention by 40%. Refactored the core P2P transaction engine to boost developer productivity by 60%, built a reusable Flutter widget library that reduced initial load time by 30%, and wrote 250+ unit/widget tests to reduce critical production transaction errors by 25%.

Flutter Dart Performance Optimization Unit Testing Widget Testing Reliability Engineering

Technical Product Lead

SRA Technologies Limited

Jul 2020 - Feb 2022 (1 year 7 months)

Led development, testing, and deployment of the TitanXchange MVP, scaling the platform to process $2M+ in transactions. Owned product direction and technical architecture end to end, added biometric authentication cutting authentication time by 80% under FINTRAC compliance, and built monitoring plus a testing suite reaching 75%+ code coverage on critical financial modules.

Mobile Engineering FINTRAC Compliant Systems Test Automation Test Coverage