a
arys2022

Kenny

@arys2022

Full stack and React Js Expert

Nigeria
Engels
Sommige informatie wordt in het Engels weergegeven.
Over mij
I'm a professional Full-stack developer with 4 years of experience in developing web applications and RESTful API with nodejs. I have knowledge in building single-page applications and developing API on the backend. I follow industry best practices in writing clean, efficient and maintainable code. My technology stack for developing web applications: - NodeJS with MERN stack, express, nestjs, typescript etc - Python with Flask - MongoDB, MySQL and PostgreSQL - Objection, SQLAlchemy, TypeORM, Knex (ORM for SQL DBMS) - EJS (For templating engine)... Lees meer

Skills

a
arys2022
Kenny
offline • 

Bekijk mijn diensten

Full stack webapplicaties
I will build a react landing and product page
VanafUS$ 15 / projectMeer informatie
Full stack webapplicaties
I will build restful API for business needs
VanafUS$ 25 / projectMeer informatie

Werkervaring

Vibe_Agency

Fullstack Engineer

Vibe Agency • Fulltime

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.