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Oluseyi Komolafe

@oluseyikomolafe

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I build scalable mobile banking, payments, crypto, and customer-engagement apps with React Native and DevOps practices.

Nigeria

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What I'm looking for

I'm looking to build scalable, high-performance mobile products with distributed teams, contributing across mobile architecture, payments, CI/CD, deployment automation, and reliable production delivery.

I've led and shipped mobile products for Fidelity Bank, Interswitch, Prospa, Ecobank, and eBanqo across banking, payments, crypto, and customer engagement.

At Interswitch, I designed secure payment flows and improved transaction performance by 30%; at Prospa, I resolved 20+ critical QA bugs and improved crash-free sessions by 35%.

I build with React Native, Flutter, TypeScript, and CI/CD practices, collaborating remotely with distributed teams to deliver stable production apps used by thousands globally.

Experience

Work history, roles, and key accomplishments

Lead Mobile Developer

Fidelity Bank

Jan 2026 - Jul 2026 (6 months)

Led the mobile development team on a full rebuild of Fidelity Bank's mobile banking app using React Native, overseeing architecture decisions, sprint planning, and delivery. Partnered with product stakeholders to design and align technical solutions, translating business and compliance requirements into the app's roadmap.

React Native CI CD Clean Architecture Sprint Planning Stakeholder Management

Senior Mobile Developer

Interswitch

Dec 2024 - May 2026 (1 year 5 months)

Designed and deployed secure mobile payment flows integrated with Interswitch APIs and backend microservices. Improved transaction performance by 30% through optimized mobile architecture, API handling, and caching strategies.

Mobile Payments API Integration Microservices CI CD Performance Optimization Caching Monitoring Debugging

Mobile Developer

Prospa

Jan 2024 - Dec 2024 (11 months)

Developed new features and flows for business banking, credit, and expense card products using React Native and Redux Toolkit. Resolved 20+ critical bugs during QA cycles, improving app stability and crash-free sessions by 35%.

React Native Redux toolkit QA Bug fixing Remote Collaboration

React Native Developer

eBanqo

Jan 2023 - Oct 2023 (9 months)

Built React Native apps for iOS and Android supporting live customer interactions and ticketing. Focused on performance tuning, reducing load time by 40% using lazy loading and optimized components.

React Native iOS Android Performance Optimization Lazy Loading Jest API Integration

Senior Frontend Developer

The GIG Group (XPad)

Jan 2022 - Jan 2023 (1 year)

Spearheaded frontend architecture for GIG's cryptobanking product suite—savings, trading, and investments. Integrated secure user auth, live market feeds, and real-time wallets using WebSocket and REST APIs.

Frontend Architecture WebSockets REST APIs Authentication Real time Data styled components Component Libraries

Mobile Developer

Freelance & Early Career

Feb 2018 - Dec 2021 (3 years 10 months)

Contract-based work for startups and agencies in banking, trading, and social commerce, including leading development of MySMEApp for Ecobank and building mobile features for various clients.

React Native Flutter Mobile Development API Integration