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Kayode
Ayelegun.

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Building software across fintech, health tech, and AI — specializing in JavaScript ecosystems, React, Next.js, and Kotlin. Currently at Zalando, shaping supply systems at scale.

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01. About

The person
behind the code

I'm a full-stack software engineer with 8+ years of experience building robust, scalable applications across diverse industries — fintech, health tech, e-scheduling, and fashion commerce.

I specialize in JavaScript ecosystems, React, Next.js, and Kotlin, with deep interest in backend architecture, AI-powered systems, and immersive technologies. Currently at Zalando in the Supply Expert function.

Outside of engineering: music, go-karting, and family.

Years

Industries

10+

Projects

Interests

Backend ArchitectureAI & LLMsImmersive TechnologiesMusicGo-Karting

Skill Radar

Tech Stack

JavaScript

TypeScript

React

Next.js

React Native

Node.js

Kotlin

GraphQL

Kafka

Kubernetes

Redis

PostgreSQL

RAG

LLMs

Docker

02. Experience

Where I've
built things

Zalando

Feb 2022

Risevest

Feb 2020

Shiftboard

Sep 2018

Andela

Dec 2017

Senior Software Engineer @ Zalando

Feb 2022 — Present · Berlin, DE

Supply intelligence at European scale

Engineering scalable supply chain systems for one of Europe's largest fashion platforms. Working on distributed architectures leveraging LLMs and RAG pipelines to improve supply intelligence, while building resilient event-driven backends with Kafka and Kubernetes.

KafkaKubernetesRedisRAGLLMsReactTypeScriptGraphQL

Senior Full Stack Engineer @ Risevest

Feb 2020 — Feb 2022 · Lagos, NG

120% increase in AUM in 6 months

Led frontend and mobile engineering across React Native and React web platforms for a global investment product. Shipped features that drove a 120% increase in Assets Under Management within six months.

React NativeReactNode.jsTypeScriptGraphQLPostgreSQL

Software Engineer @ Shiftboard

Sep 2018 — Dec 2019 · Seattle, US (Remote)

Workforce scheduling at enterprise scale

Embedded engineering partner through Andela, working on workforce scheduling and management software. Built and maintained complex scheduling algorithms and real-time notification systems.

ReactNode.jsGraphQLPostgreSQLAWS

Software Engineer @ Andela

Dec 2017 — Feb 2020 · Lagos, NG

Top 1% of 100,000+ applicants

Part of Andela's elite software engineering program. Trained in distributed systems and agile practices while placed with global technology partners. Built full-stack applications and contributed to internal tooling.

JavaScriptReactNode.jsPythonRuby on Rails

03. Projects

Things I've
shipped

01★ FEATURED

Revue AI

Intelligent automated code reviews on GitHub PRs

A Chrome extension that brings AI-powered code review directly into GitHub pull requests. Supports OpenAI, Anthropic, and Gemini models — delivering contextual, actionable feedback without leaving your workflow.

Chrome ExtensionTypeScriptOpenAIAnthropicGeminiReact

02

Famasi Africa

Prescription discovery across Africa's pharmacy network

A health tech platform enabling patients to locate pharmacies that stock their specific prescriptions, bridging the gap in Africa's fragmented pharmaceutical supply chain.

ReactNode.jsPostgreSQLMaps API

03

Risevest

Global investment portfolios for African investors

A mobile-first investment platform giving African investors access to global assets — US stocks, real estate, fixed income, and more. Contributed significantly to a 120% increase in AUM over six months.

React NativeReactNode.jsGraphQLTypeScript

04. Contact