Open to remote backend & full-stack roles

Backend &Full-Stack Engineer

I build scalable APIs, backend systems, web applications, and cloud-ready products using Node.js, NestJS, TypeScript, FastAPI, PostgreSQL, AWS, and Docker.

Lekan Okelola, Backend and Full-Stack Engineer
3+Years Experience
10+Projects Built
RemoteReady Nigeria
Featured Engineering Work

Projects that show backend depth, architecture, and delivery.

Production and public projects are presented with clear roles, system architecture, engineering decisions, and outcomes. Private code is marked explicitly.

FinTech / BackendBackend Developer

AIFIOS — AI Financial Operations Platform

A production-focused financial operations platform with modular backend services, verification and security workflows, transaction handling, notifications, AI-assisted features, and web/mobile clients.

Web / MobileNestJS APIServicesPostgreSQLProviders
  • Built and hardened authentication, trusted-device, verification, notification, and financial workflow modules.
  • Worked with provider integrations, ledger-oriented transaction flows, reconciliation concerns, and production error handling.
  • Supported deployment and operations across AWS, Docker, Nginx, PM2, CI/CD, and environment-specific services.

Demonstrates production backend work across security, data integrity, integrations, financial workflows, and operational delivery.

NestJSTypeScriptPostgreSQLPrismaRedisDockerAWSNginxPM2
Private codebase
Backend / MarketplaceBackend Developer

NestArrival Property Platform

A property marketplace backend supporting authentication, listing management, owner and tenant verification, admin review, subscriptions, inquiries, CMS content, media workflows, and production deployment.

Web ClientExpress APIPrismaPostgreSQLAWS
  • Implemented and maintained REST endpoints for listings, verification, administration, inquiries, and supporting product workflows.
  • Worked on verification state transitions, archive/restore flows, protected listing data, email notifications, and API contracts.
  • Deployed and operated Node.js services on EC2 behind Nginx with PM2, database migrations, staging environments, and CI/CD checks.

Shows end-to-end ownership of a real backend from API contracts and relational data to security, deployment, and production troubleshooting.

Node.jsExpress.jsPostgreSQLPrismaJWTResendAWS EC2NginxPM2
Live DemoClient codebase
FastAPI / Business BankingBackend Engineer

Business KYB & Operations Service

A FastAPI microservice for business onboarding and operations, including KYB workflows, CAC/document verification, business restrictions, payments, invoices, expenses, reporting, reconciliation, and audit trails.

ClientsFastAPIDomain ServicesPostgreSQLKYB Providers
  • Designed business onboarding around identity checks, CAC verification, document analysis, review states, and compliance auditability.
  • Structured invoice, payment, expense, reporting, reconciliation, and business account flows as reusable backend modules.
  • Added migration, lint, test, security-scan, deployment, and environment practices appropriate for an independently deployed microservice.

Demonstrates Python backend architecture, compliance-aware workflows, service boundaries, and production engineering beyond CRUD-only APIs.

PythonFastAPISQLAlchemyPostgreSQLAlembicPydanticDojahDockerCI/CD
Private codebase
Backend ArchitectureBackend Developer

Backend API Platform

A public backend project focused on authentication, validation, persistence, security middleware, logging, and email workflows for decoupled client applications.

ClientREST APIAuthMongoDBEmail
  • Designed modular REST endpoints for decoupled client applications.
  • Implemented JWT authentication with password hashing and request validation.
  • Added security middleware, logging, and transactional email support.

Provides a public code sample of core backend patterns including auth, validation, persistence, and secure API boundaries.

Node.jsExpress.jsMongoDBJWTBcryptjsJoiHelmet
DevOps & AutomationDevOps Engineer

Jenkins Docker Kubernetes Pipeline

A public delivery pipeline demonstrating container image builds and application deployment to Kubernetes through Jenkins automation.

GitHubJenkinsDockerHubKubernetesPods
  • Created a repeatable CI/CD flow from source control to container deployment.
  • Configured Docker image build/push steps and Kubernetes CLI deployment commands.
  • Documented the deployment flow so the project can be reviewed and reproduced.

Shows practical exposure to containers, CI/CD automation, and Kubernetes delivery alongside backend development.

JenkinsDockerKubernetesGitkubectlCI/CD
Experience

Professional work recruiters can evaluate fast.

Projects show what I can build. Experience shows where I have been trusted to ship production-oriented engineering work.

Backend Developer

AIFIOS

Building backend services and production workflows for an AI-powered financial operations platform.

May 2026 - Present

Remote

  • Designing REST API modules for user, verification, admin, and financial workflow features.
  • Modeling relational data flows for accounts, transactions, and operational records.
  • Supporting production deployment practices with Node.js, PostgreSQL, AWS, Docker, Nginx, and PM2.
Node.jsExpress.jsPostgreSQLPrismaAWSDocker

Full-Stack Engineer

Freelance / Independent Projects

Delivering web, backend, mobile, and automation projects for real-world product scenarios.

2023 - Present

Nigeria / Remote

  • Built full-stack applications with React, Next.js, React Native, Node.js, and TypeScript.
  • Implemented authentication, API integration, dashboard views, and deployment workflows.
  • Created portfolio-ready engineering projects that demonstrate backend, DevOps, and mobile capability.
TypeScriptNext.jsReact NativeFastAPIDockerCI/CD
Technical Skills

A stack built around APIs, data, and production delivery.

Backend-focused engineering across APIs, databases, cloud deployment, and the web and mobile clients that consume those services.

Backend & APIs

Node.js
TypeScript
NestJS
Express.js
FastAPI
Authentication & Security

Data & Persistence

PostgreSQL
Prisma
MongoDB
Redis
REST API Design
Validation & Data Modeling

Product & Delivery

Next.js
React
React Native
Tailwind CSS
Docker
AWS
Lekan Okelola, Backend and Full-Stack Engineer

Backend & Full-Stack Engineer

Lekan Okelola

About Me

Backend-first engineering with full-stack product range.

I am a Backend & Full-Stack Engineer focused on scalable APIs, backend systems, cloud-ready products, and production web/mobile applications.

My core stack includes Node.js, NestJS, TypeScript, FastAPI, PostgreSQL, React, Next.js, React Native, AWS, Docker, and CI/CD. I care about clean architecture, maintainable delivery, and systems that are practical to run after launch.

10+

Projects Built

3+

Years Experience

API

Backend Focus

Remote

Availability

API DesignBackend ArchitecturePostgreSQLCloud DeploymentsMobile Development
Available for work

Open to remote Backend & Full-Stack Engineering roles.

Based in Nigeria and available for remote international teams, backend roles, full-stack roles, contract builds, and production-focused freelance work.

Emailcontact@lekanokelola.com
LocationLagos, Nigeria (GMT+1)
AvailabilityRemote roles, contract work, and freelance projects
WhatsAppQuick chat option

Professional Links

Send a message

Email is the best route for recruiter and project conversations.