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arys2022

Kehinde Fasunle

@arys2022

Full Stack Software Engineer

Nigeria
Anglais
Certaines informations sont présentées en anglais.
À propos de moi
I’m a Senior Full Stack Engineer with 5+ years of experience building secure, scalable web applications for fintech, ecommerce, SaaS, and social platforms. I help clients turn ideas into production-ready products, build APIs, integrate payments and AI, optimize performance, and fix complex technical issues. I’ve worked on systems processing 120K+ daily payments and 200K+ daily notifications. My focus is simple: reliable software, clean engineering, and results you can trust. Got a problem to solve or an idea to build? Let’s talk. I’ll help you turn the complexity into a product that works... Plus d’infos

Compétences

a
arys2022
Kehinde Fasunle
hors ligne • 

Voir mes services

Applications Web Full stack
I will build a react landing and product page
De15 $US / projetPlus de détails
Applications Web Full stack
I will build restful API for business needs
De25 $US / projetPlus de détails

Expérience professionnelle

Vibe_Agency

Fullstack Engineer

Vibe Agency • Temps plein

Jun 2020 - Dec 2022 • 2 yrs 6 mos

• Built real-time event location API serving 50k+ monthly users discovering concerts, meetups, and festivals nearby. Implemented geospatial indexing with PostGIS, reducing venue search latency from 1.2s to 85ms for 10km radius queries. Wrote unit + integration tests for edge cases (e.g., events at timezone boundaries), achieving 99.95% uptime during launch week. • Designed event creation and RSVP system supporting 5k concurrent users during ticket drops. Used optimistic locking and Redis queues to prevent overbooking. Behavioral tests simulated 10x traffic spikes, uncovering 4 race conditions in invitation acceptance logic that were fixed before any user impact. • Created admin dashboard for event organizers with real-time attendee metrics and check-in analytics. Built idempotent webhook consumers for payment confirmations (Stripe, Paystack), eliminating duplicate ticket issuance that affected 3% of users pre-launch. Reduced manual refund requests by 84% after deploying idempotency keys.