Ifeanyi Elvis Okeke
Application Engineer — Python, AI & Cloud
I build production-focused backend systems, AI-powered applications, and the infrastructure that keeps them running.
✓ location: Barcelona, Spain
✓ current focus: AI & RAG systems, cloud engineering
✓ stack: Python · FastAPI · Next.js · Postgres
✓ last deployed: OpsPilot — live
$ open to freelance work & full-time roles
Featured work
Real, working systems, not tutorials. Each one is live on GitHub.
OpsPilot
An AI-powered monitoring dashboard that watches services in real time, detects incidents automatically, and uses AI to explain what broke in plain language, in the user's preferred language.
AI Document Intelligence API
A RAG platform that ingests PDF and DOCX documents, generates semantic embeddings, stores them in PostgreSQL with pgvector, and answers questions using retrieved, source-aware context.
FastAPI User CRUD
A clean REST API for managing users, supporting full CRUD and search, built to demonstrate solid API design fundamentals.
What I can build for you
From a single feature to a full system, backend, frontend, and the infrastructure in between.
Web Applications
Full-stack web apps built with modern frameworks, from a first prototype to something production-ready.
Websites
Fast, clean marketing and portfolio sites that load quickly and represent a brand properly.
Mobile Apps
Cross-platform mobile apps connected to real backends and APIs, not just static screens.
RAG Systems
Retrieval-augmented generation pipelines: document ingestion, embeddings, vector search, and grounded LLM answers.
MCP Integrations
Model Context Protocol servers and tools that let AI assistants act on real systems and data safely.
Microservices
Backend systems split into focused, independently deployable services with clear API boundaries.
Cloud & DevOps
Deployment pipelines, containerization, and cloud infrastructure so your app actually stays online.
Experience
Application Engineer
Freelance / Self-Directed Projects
- Built web and mobile applications for business clients using modern frontend and backend technologies.
- Designed and integrated REST APIs and PostgreSQL-backed application services.
- Developed a React Native mobile application for a business client from initial UI iterations through functional delivery.
- Built Python automation and backend projects using FastAPI, PostgreSQL and Docker.
- Integrated third-party APIs and worked across application debugging, deployment and maintenance.
- Applied Git-based development workflows and automated testing to backend projects.
Application Engineer / UI Developer
ProvidusBank
- Built and maintained financial technology applications and payment platforms
- Handled REST API integrations across web and mobile products
- Provided production support and resolved live incidents under real time pressure
- Worked cross-functionally across product delivery from design to deployment
Currently working with
Let's work together
Tell me about your project below, or pick a time straight from my calendar.