Full-stack and mobile developer based in Lisbon, Portugal. Founder of ICOWEB Agency with 4+ years shipping production apps for clients in the UK, US, Germany, and the Netherlands. Mobile: Flutter (iOS + Android), Riverpod, Clean Architecture, App Store / Play releases. Web/full-stack: Next.js, TypeScript, React, Supabase, Firebase, REST, payments. Proof: Communitee Golf (UK, live App Store), Elli App (Germany), Beepex fintech, Numd open-source (Dart). Agency: icowebagency.com. Available for freelance full-stack and mobile work. Remote-friendly EU hours.

Smith Abiodun Osagie

Full-stack and mobile developer based in Lisbon, Portugal. Founder of ICOWEB Agency with 4+ years shipping production apps for clients in the UK, US, Germany, and the Netherlands. Mobile: Flutter (iOS + Android), Riverpod, Clean Architecture, App Store / Play releases. Web/full-stack: Next.js, TypeScript, React, Supabase, Firebase, REST, payments. Proof: Communitee Golf (UK, live App Store), Elli App (Germany), Beepex fintech, Numd open-source (Dart). Agency: icowebagency.com. Available for freelance full-stack and mobile work. Remote-friendly EU hours.

Available to hire

Full-stack and mobile developer based in Lisbon, Portugal. Founder of ICOWEB Agency with 4+ years shipping production apps for clients in the UK, US, Germany, and the Netherlands.

Mobile: Flutter (iOS + Android), Riverpod, Clean Architecture, App Store / Play releases. Web/full-stack: Next.js, TypeScript, React, Supabase, Firebase, REST, payments.

Proof: Communitee Golf (UK, live App Store), Elli App (Germany), Beepex fintech, Numd open-source (Dart). Agency: icowebagency.com.

Available for freelance full-stack and mobile work. Remote-friendly EU hours.

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Experience Level

Expert
Expert
Expert
Intermediate
Intermediate

Language

English
Fluent
Yoruba
Fluent

Work Experience

Beepex at Flutter Developer
January 1, 2025 - Present
Developed fintech wallet and utility features including gift cards, airtime, data, electricity, and TV. Used Riverpod, Clean Architecture, fpdart, Paystack integrations and Supabase.
Flutter Developer at Beepex
January 1, 2025 - Present
Built fintech features including wallet, gift cards, airtime, data, electricity, and TV. Used Riverpod and Clean Architecture; integrated payments and backend services; handled ownership of production features and release workflows.
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
September 1, 2024 - January 31, 2026
Worked on the open-source Numd Dart numerical library (complex128, type promotion, HDF5 support). Contributed with unit tests, documentation, and examples to support community adoption.
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 LYQX Agency
August 1, 2024 - September 30, 2025
Provided architecture standards, conducted code reviews, and mentored team members. Owned CI/CD for iOS and Android store distribution. Served as the primary technical contact for stakeholders.
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
May 1, 2024 - Present
Developed an educational app for children with Down syndrome with adaptive learning and accessibility considerations. Implemented and supported multiple locales (EN, HR, SR, NL) and maintained App Store / Google Play ownership.
Senior Flutter Developer at Elli App (Remote, Germany)
May 1, 2024 - Present
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.
Lead Flutter App Developer at Talosmart Agency
January 1, 2024 - May 31, 2024
Owned architecture decisions, mentoring, and delivery planning including schedules and budgets.
Lead Flutter App Developer at Talosmart Agency (Lagos)
January 1, 2024 - May 1, 2024
Set architecture and coding standards, mentored a small Flutter team, and managed schedules and budgets while delivering Flutter app work.
Intermediate Flutter App Developer at iMotion Hub Technologies
January 1, 2023 - December 31, 2023
Developed a service marketplace for Google Play, including payments and analytics. Implemented UI and integrated REST APIs as needed for platform features.
Intermediate Flutter App Developer at iMotion Hub Technologies (Port Harcourt)
January 1, 2023 - December 31, 2023
Led delivery of a service marketplace platform on Google Play, including secure payments and analytics.
Junior Flutter App Developer at Ordibillz Technologies
January 1, 2022 - December 31, 2022
Developed Flutter apps and REST APIs, handled UI work, and participated in code reviews.
Junior Flutter App Developer at Ordibillz Technologies (Lagos)
January 1, 2022 - December 31, 2022
Built responsive Flutter applications, integrated REST APIs, and contributed to UI implementation and code reviews.
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

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

Experience Level

Expert
Expert
Expert
Intermediate
Intermediate