SARAH
NZESHI
Engineer.

Building the software layer between ideas and scale, production apps, AI systems, and the cloud infrastructure that keeps them running.

African-built  ·  Globally shipped  ·  Est. 2026

SKILLS // ASSEMBLY

$ ls -la /usr/skills  _

[01]REACT
[02]NEXT.JS
[03]NODE.JS
[04]NESTJS
[05]TYPESCRIPT
[06]LANGCHAIN
[07]MONGODB
[08]AWS ECS
[09]DOCKER
[10]POSTGRES
[11]RABBITMQ
[12]REDIS
[13]ANGULAR
[14]GRAPHQL
[15]CI/CD
[01]REACT
[02]NEXT.JS
[03]NODE.JS
[04]NESTJS
[05]TYPESCRIPT
[06]LANGCHAIN
[07]MONGODB
[08]AWS ECS
[09]DOCKER
[10]POSTGRES
[11]RABBITMQ
[12]REDIS
[13]ANGULAR
[14]GRAPHQL
[15]CI/CD
[01]REACT
[02]NEXT.JS
[03]NODE.JS
[04]NESTJS
[05]TYPESCRIPT
[06]LANGCHAIN
[07]MONGODB
[08]AWS ECS
[09]DOCKER
[10]POSTGRES
[11]RABBITMQ
[12]REDIS
[13]ANGULAR
[14]GRAPHQL
[15]CI/CD
LANGUAGES: TypeScript, JavaScript, Python
BACKEND: Node.js, NestJS, Express, GraphQL
AI/ML: LangChain, RAG, Vector Search, Gemini
CLOUD: AWS ECS, Lambda, CodePipeline, Docker, K8s
DATA: MongoDB Atlas, PostgreSQL, Prisma, Redis
AUTH: NextAuth, JWT, OAuth 2.0, RBAC, Multi-Tenant

WORK HISTORY

// $ history | grep "work"

[01] 01/2026 — 03/2026

THE OH-RES

Full-Stack Developer
  • ▸Built and shipped a production ERP platform using a NestJS microservices backend and Angular frontend for 7+ tenant organizations.
  • ▸Designed a secure multi-tenant architecture with company-level data isolation and successfully passed penetration testing.
  • ▸Improved system reliability and performance using AWS ECS, RabbitMQ, and scalable service communication patterns.
  • ▸Reduced deployment time from 45 minutes to under 10 minutes by introducing automated CI/CD pipelines with GitHub Actions and AWS CodePipeline.
  • ▸Implemented API gateway and event-driven microservice communication handling 50K+ daily events with low-latency processing.
[02] 08/2025 — 01/2026

GEEKS-CHALLENGE

Backend Developer (Contract)
  • ▸Developed backend services for a gaming platform using Express.js and Firebase.
  • ▸Introduced Redis caching, cutting API response times by roughly 40% and improving overall responsiveness.
  • ▸Refactored core modules using SOLID principles, making the codebase easier to maintain and scale.
[03] 07/2025 — 10/2025

94CODEHUB

Full-Stack Developer (Contract)
  • ▸Built a MERN-based school management platform used across 3 schools and supporting 500+ students.
  • ▸Optimized frontend performance with code splitting and lazy loading, significantly improving load times and Lighthouse scores.
  • ▸Implemented JWT authentication and role-based access control for 4 user roles, passing external security review without critical issues.
  • ▸Set up CI/CD workflows that reduced deployment time from 2 hours to about 15 minutes.
[04] 03/2025 — 04/2025

MEETRO

Frontend Developer (Contribution)
  • ▸Contributed to an event ticketing platform built with React and Tailwind CSS in a remote 3-person team.
  • ▸Created reusable UI components and documented them with Storybook for easier collaboration and consistency.
  • ▸Improved frontend stability and scalability through load testing for 1,000+ concurrent users.

PROJECTS // EXECUTABLES

static_preview.png
GbeBody AI
/// PROJECT 01

GbeBody AI

Nigerian-Context RAG Fitness Assistant
Next.js · LangChain · Google Gemini · MongoDB Atlas Vector Search · Upstash

ProductionRAGwithstreamingresponses.Category-awareretrievalwithmetadatafilteringimprovedrelevance60%.Rate-limited+prompt-injectiondetectionblocked100%ofmaliciouspayloadsinsecuritytesting.

[ github ][ live → ]
static_preview.png
Portora
/// PROJECT 02

Portora

Portfolio Platform for Freelancers
Next.js · MongoDB · NextAuth · Cloudinary · dnd-kit

Full-stackportfoliobuilderwith5layoutengines,drag-and-drop,30+APIendpoints,blog,real-timeanalytics.OAuth(GitHub/Google)withgranularRBAC—70%fasteronboarding.

[ github ][ live → ]
static_preview.png
Fable Weaver
/// PROJECT 03

Fable Weaver

AI-Powered Narrative Engine
React · TypeScript · Python · SQLAlchemy · Groq LLM

Interactive'chooseyourownadventure'engine.Pre-generatesfullbranchingstorytreesupfrontusingLLMstoensurenarrativeconsistency.CustomPythonbackendflattensdeeplynestedrelationaldataforzero-latencyclient-sidenodetraversal.

[ github ][ live → ]
static_preview.png
URL Shortener
/// PROJECT 04

URL Shortener

Signal-Driven Link Manager
Angular · RxJS · TypeScript · Sass · NodeJS · MongoDB

UnidirectionaldataflowarchitectureleveragingAngularSignalstoeliminatememoryleaksandforcesynchronousDOMupdates.Featuresfunctionalrouteguardsandastrictdual-layeranonymoustrialsystemwithIP-basedTTLlimitations.

[ github ][ live → ]

CONTACT SARAH