Lionel Etaba

Full Stack Developer

Lionel Etaba

About

With 6 years of experience, I specialize in crafting scalable web applications.
Experienced in both Backend and Frontend web development, along with managing Infrastructure and CI/CD.

Experience

  • -

    Sofware engineering consultant @ Seminar community

    USA - Remote

    Summary:

    • Seminar is an online platform for charter schools leaders in the USA.

    Responsibilities:

    • Lead all the engineering projects of the company

    Achievements:

    • Built a cron service to collect and store the platform's content.
    • Built a RAG (Retrieval Augmented Generation) pipeline for answering questions based on the platform's content.
    • Built the Chatbot user interface with NextJs.
    • Made several improvements to the company's website
    • NodeJs
    • Next.js
    • ReactJs
    • Git
    • GitHub
    • AWS Lambda
    • Typescript
    • Langchain
    • OpenAI
    • PineconeDB
    • SST
  • -

    Sofware engineer @ Kibo School

    USA - Remote

    Summary:

    • Kibo School delivers accredited computer science degrees through an online program that combines quality education with practical experience.

    Responsibilities:

    • Designed and implemented core platform architecture.
    • Built internal APIs and third-party integrations.
    • Developed frontend interfaces using React and NextJS.
    • Managed database operations and migrations.
    • Set up CI/CD pipelines on Google Cloud Platform.

    Achievements:

    • Built platform infrastructure.
    • Achieved 100% database integrity during migrations.
    • Streamlined deployment process with GitHub Actions.
    • Successfully launched platform MVP.
    • NodeJs
    • Next.js
    • ReactJs
    • Git
    • GitHub
    • Github Actions
    • Typescript
    • Python
    • Flask
    • PostgreSQL
    • Google Cloud Platform
    • Docker
    • Docker compose
  • -

    Senior software engineering consultant @ Mboa Digital

    Yaounde, Cameroon - Hybrid

    Summary:

    • A digital services company specializing in enterprise software solutions for medium and large-scale businesses accross Central Africa and Europe.

    Responsibilities:

    • Maintained existing and built new REST services.
    • Modified database functions and stored procedures.
    • Implemented application features.
    • Performed code reviews and bug fixes.

    Achievements:

    • Enhanced query performance through optimized SQL procedures.
    • Implemented a search functionality for a warehouse management application.
    • Streamlined data model for better efficiency.
    • Reduced several services response times.
    • Git
    • Javascript
    • Typescript
    • Angular
    • Java
    • C#(Csharp)
    • Docker
    • OracleDB
  • -

    Lead Sofware Developer @ Djemo Digital

    Yaounde, Cameroon - Hybrid

    Summary:

    • Djemo Digital develops a platform helping Central African construction companies streamline project management and resource tracking.

    Responsibilities:

    • Led the technical design and architecture decisions
    • Developed serverless APIs using AWS Lambda
    • Built the user interfaces using ReactJs
    • Managed the development team and processes

    Achievements:

    • Successfully launched the application that is now used by several companies.
    • Implemented an efficient MongoDB architecture.
    • Established an effective code review process.
    • NodeJs
    • ReactJs
    • Git
    • Typescript
    • AWS Lambda
    • AWS SQS
    • AWS S3
    • AWS
    • MongoDB
    • Serverless Framework
    • Bitbucket
  • -

    Full-stack Sofware Developer @ Bara Technologies

    Canada - Remote

    Summary:

    • A technology company focused on building SAAS products for businesses in the financial sector.

    Responsibilities:

    • Designed scalable PostgreSQL databases
    • Built REST and GraphQL APIs using Python(Flask, FastAPI) and NodeJs
    • Developed React frontend interfaces using ReactJs
    • Managed cloud infrastructure on Google Cloud Platform and AWS
    • Set up development environments using Docker

    Achievements:

    • Scaled applications to 1,000+ monthly active users.
    • Cut deployment time by 50% with Jenkins.
    • Successfully setup a payment system using Stripe
    • Successfully integrated multiple third-party services (ZohoCRM, Flinks, SoquijAPI).
    • Optimized development workflow with Docker and Docker-compose.
    • NodeJs
    • ReactJs
    • Git
    • Javascript
    • Typescript
    • AWS S3
    • AWS
    • Celery
    • Redis
    • PostgreSQL
    • Gitlab
    • Python
    • Flask
    • FastAPI
    • Google Cloud Platform
    • Docker
    • Docker compose
    • Kubernetes
    • Jenkins

Projects

Posts

How to Create an Animated Image Grid Using Svelte

How to Create an Animated Image Grid Using Svelte

How to Create an Animated Image Grid Using Svelte
Beyond Traditional File Uploads: Scaling with Presigned URLs.

Beyond Traditional File Uploads: Scaling with Presigned URLs.

Learn how to build scalable and efficient file upload systems using presigned URLs. This guide provides what you need to get started with file operations using presigned URLs. From understanding the basics to a sample implementation using Python, Flask, AWS S3

What I've used so far

  • HTML
  • CSS
  • TailwindCSS
  • JavaScript
  • TypeScript
  • ReactJs
  • NodeJs
  • Git
  • GitHub
  • SQL
  • Python
  • Flask
  • FastAPI
  • Golang
  • Java
  • Csharp
  • SQL
  • PostgreSQL
  • MongoDB
  • Redis
  • Celery
  • Docker
  • AWS
  • Google Cloud Platform
  • Jenkins
  • GitHub Actions
  • SST
  • OpenAI