Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I’m Smith Abiodun Osagie, a senior Flutter developer with 4+ years of experience shipping production mobile apps to the App Store and Google Play. I build end-to-end features—architecture, testing, CI/CD, and store releases—across fintech, healthcare, ride-hailing, and edtech, while keeping quality high with disciplined review and strong engineering fundamentals. I’m also AI-augmented in my workflow: I use Claude Code to accelerate feature development and refactors, then I thoroughly review and validate every change against the app’s architecture and behavior, including writing and maintaining tests. Alongside my commercial work, I contribute to open-source (Numd for Dart numerical computing), and I enjoy solving complex product problems that require both solid engineering and attention to user experience.…I’m Smith Abiodun Osagie, a senior Flutter developer with 4+ years of experience shipping production mobile apps to the App Store and Google Play. I build end-to-end features—architecture, testing, CI/CD, and store releases—across fintech, healthcare, ride-hailing, and edtech, while keeping quality high with disciplined review and strong engineering fundamentals. I’m also AI-augmented in my workflow: I use Claude Code to accelerate feature development and refactors, then I thoroughly review and validate every change against the app’s architecture and behavior, including writing and maintaining tests. Alongside my commercial work, I contribute to open-source (Numd for Dart numerical computing), and I enjoy solving complex product problems that require both solid engineering and attention to user experience.

Smith Abiodun Osagie

Full Stack Developer, Web Developer, Back-End Developer, +2





I’m Smith Abiodun Osagie, a senior Flutter developer with 4+ years of experience shipping production mobile apps to the App Store and Google Play. I build end-to-end features—architecture, testing, CI/CD, and store releases—across fintech, healthcare, ride-hailing, and edtech, while keeping quality high with disciplined review and strong engineering fundamentals. I’m also AI-augmented in my workflow: I use Claude Code to accelerate feature development and refactors, then I thoroughly review and validate every change against the app’s architecture and behavior, including writing and maintaining tests. Alongside my commercial work, I contribute to open-source (Numd for Dart numerical computing), and I enjoy solving complex product problems that require both solid engineering and attention to user experience.…I’m Smith Abiodun Osagie, a senior Flutter developer with 4+ years of experience shipping production mobile apps to the App Store and Google Play. I build end-to-end features—architecture, testing, CI/CD, and store releases—across fintech, healthcare, ride-hailing, and edtech, while keeping quality high with disciplined review and strong engineering fundamentals. I’m also AI-augmented in my workflow: I use Claude Code to accelerate feature development and refactors, then I thoroughly review and validate every change against the app’s architecture and behavior, including writing and maintaining tests. Alongside my commercial work, I contribute to open-source (Numd for Dart numerical computing), and I enjoy solving complex product problems that require both solid engineering and attention to user experience.

Available to hire

I’m Smith Abiodun Osagie, a senior Flutter developer with 4+ years of experience shipping production mobile apps to the App Store and Google Play. I build end-to-end features—architecture, testing, CI/CD, and store releases—across fintech, healthcare, ride-hailing, and edtech, while keeping quality high with disciplined review and strong engineering fundamentals.

I’m also AI-augmented in my workflow: I use Claude Code to accelerate feature development and refactors, then I thoroughly review and validate every change against the app’s architecture and behavior, including writing and maintaining tests. Alongside my commercial work, I contribute to open-source (Numd for Dart numerical computing), and I enjoy solving complex product problems that require both solid engineering and attention to user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Yoruba

Fluent

Work Experience

Flutter Developer at Beepex (Remote)

January 1, 2025 - Present

Develops a cross-platform fintech application for digital payments and utilities. Built with Flutter, Riverpod, Clean Architecture, and fpdart for typed error handling. Implemented wallet funding and bill payment flows (gift card redemption, airtime, data, prepaid/postpaid electricity, TV subscriptions) with OTP-secured authentication. Integrated Paystack for wallet funding and Reloadly for bill payments using a Supabase edge-function backend with audit-trail logging and PIN-protected transactions.

Flutter Developer and Library Engineer at QHarbor Research (Numd, open-source) (Remote, Netherlands)

September 1, 2024 - January 1, 2026

Contributed to the Numd open-source numerical computing library for Dart. Expanded support from float64-only to int64 and Complex128, designed a Complex number class with core operations (addition/subtraction/multiplication/division, conjugation, magnitude, phase), implemented enum-based type management and NumPy-style type promotion/dispatch for mixed-type arithmetic, and supported HDF5 integration for scientific data read/write. Wrote unit tests, documentation, and usage examples to support community adoption.

Mobile Technical Lead at LYQ X Agency (Remote, Ukraine)

August 1, 2024 - September 1, 2025

Led cross-functional Flutter teams delivering production mobile applications for international clients. Established architecture patterns, coding standards, and testing practices; ran code reviews, mentored mid-level and junior developers, and paired on difficult problems. Set up CI/CD pipelines for iOS and Android. Served as primary technical point of contact for stakeholders and translated requirements into technical specifications.

Senior Flutter Developer at Elli App (Remote, Germany)

May 1, 2024 - July 31, 2026

Built and maintained an educational Flutter app for children with Down syndrome. Implemented multi-language support with locale-adapted content, adaptive learning paths and personalised feedback adjusting difficulty based on interaction patterns, accessible UI components and gamification suited to different abilities, and owned TestFlight and app store preparation and release feedback cycles.

Founder and CEO at ICOWEB Agency

January 1, 2022 - Present

Leads a studio serving clients in Nigeria, the United States, the United Kingdom, Germany, Canada, and Australia. Manages a team including a CTO and other engineering/product roles. Sets technical direction, runs discovery and scoping, and approves architecture and security decisions. Delivered fintech, healthcare, ride-hailing, and business operations platforms for multiple clients, and is building additional ERP/accounting and inventory/operations systems with short delivery timelines. Also produces promotional video, motion graphics, and brand assets for client launches.

Education

Bachelor of Education in Mathematics at Ambrose Alli University

January 1, 2018 - July 23, 2026

Flutter Bootcamp (continuing education) at App Brewery (Angela Yu, Udemy)

January 1, 2021 - July 23, 2026

B.Ed Mathematics at Ambrose Alli University

January 11, 2030 - July 23, 2026

B.Ed Mathematics at Ambrose Alli University

January 11, 2030 - July 23, 2026

B.Ed Mathematics at Ambrose Alli University

January 11, 2030 - July 23, 2026

Bachelor of Education in Mathematics at Ambrose Alli University, Benin City

January 1, 2018 - January 1, 2018

Flutter Bootcamp at App Brewery (Angela Yu) / Udemy

January 1, 2021 - January 1, 2021

Qualifications

App Brewery Flutter Bootcamp (Angela Yu)

January 11, 2030 - July 23, 2026

App Brewery Flutter Bootcamp (Angela Yu)

January 11, 2030 - July 23, 2026

Industry Experience

Software & Internet, Education, Financial Services, Healthcare, Travel & Hospitality, Government, Professional Services, Other, Transportation & Logistics