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Esther Ohiomame Software Engineer
Email
[email protected]
Location
Lagos, Nigeria
LinkedIn
https://www.linkedin.com/in/esther-ohiomame-50a8a0240/
Phone
+2348150488269
GitHub
https://github.com/alexindevs
Profile

Software Engineer passionate about building scalable and high-performance applications. With 3+ years of experience spanning finance, e-commerce, and AI, I've designed resilient APIs, built interactive frontends, automated DevOps workflows, and optimized AI-powered systems—improving system efficiency by 40% and enhancing user experience.

Professional Experience
2025/03 – presentNew Jersey, USA

Backend Engineer

The Product Room
  • •Set up and managed cloud environments using GitHub Actions for CI/CD and AWS EC2 for infrastructure, ensuring seamless deployments and scalable operations.
  • •Developed and optimized backend APIs with DolphJS, improving system efficiency and integrating key functionalities.
  • •Implemented a greedy algorithm for substitute teacher optimization, enhancing scheduling efficiency and reducing costs.
    • 2024/11 – 2025/02Lagos, Nigeria

    Backend Engineer

    Bento Africa
  • •Maintained robust backend systems supporting 100,000+ daily user interactions
  • •Developed high-performance APIs powering core enterprise communication features
  • •Implemented scalable integrations improving system response time by 40%Copy
    • 2024/03 – presentLagos, Nigeria

    Backend Developer

    Xavier Paisley
  • •Developed and maintained scalable backend services using Node.js/TypeScript and Nest.js, implementing real-time features and location-based services.
  • •Strengthened cross-functional collaboration by actively engaging with frontend and UI/UX teams, ensuring consistent and reliable user experiences across all platforms, and reducing integration-related support issues by 15%.
  • •Executed thorough testing and debugging, proactively identifying critical bugs and ensuring stable releases, resulting in a 20% drop in error rates and increased uptime across deployment environments.
    • 2024/07 – 2024/09Lagos, Nigeria

    DevOps Intern (Finalist)

    HNG11 Internship
  • •Deployed and maintained full stack applications on AWS EC2 using Docker and Traefik/Nginx, achieving seamless domain and HTTPS configurations and enabling smooth scaling for high-demand environments.
  • •Led CI/CD pipeline setup for C# .Net applications, optimizing deployment workflows, improving server stability, and supporting smooth and reliable releases.
  • •Configured Nginx to support efficient backend-frontend communication, facilitating fast, reliable user interactions across applications.
  • •Standardized deployment with containerized environments, enhancing scalability and simplifying maintenance while ensuring consistent environments across development stages.
  • •Implemented advanced monitoring and load balancing strategies, improving server reliability, reducing system interruptions, and supporting a stable, high-availability infrastructure.
    • 2023/12 – 2024/08Lagos, Nigeria

    Backend Engineer

    Fingle Technologies
  • •Led backend development efforts, contributing to a more robust platform and expanding service capabilities to support the company’s growth.
  • •Enhanced system performance and reliability, leveraging comprehensive knowledge of the product to optimize key functionalities across the platform.
  • •Quickly resolved critical production issues, maintaining smooth operations and supporting a positive user experience.
  • •Worked closely with cross-functional teams, delivering high-quality code and championing continuous improvement initiatives to advance development practices.
    • 2023/04 – 2023/06Lagos, Nigeria

    Web Developer Intern

    Starr Power Technologies
  • •Developed intuitive digital applications for clients, enhancing usability and improving overall customer satisfaction and engagement.
    • 2022/10 – 2023/12Lagos, Nigeria

    Software Developer

    Uliuwa
  • •Boosted user satisfaction ratings by 15% by designing intuitive and easy-to-navigate interfaces.
    • Skills
    Backend Engineering
    • •Node.js/TypeScript - Express.js, NestJS, RESTful APIs
    • •Python - Flask, FastAPI
    • •API Design & Development - JWT, OAuth2, OpenAPI/Swagger
    • •Testing - Jest, Supertest
    Frontend Engineering
    • •React.js/TypeScript - Redux, React Query, React Router
    • •Vue.js - Vuex/Pinia, Vue Router
    • •Tailwind CSS, Sass/SCSS, Responsive Design
    • •Build Tools - Vite, Webpack
    ML/AI
    • •Large Language Models: OpenAI GPT-3.5/4, Llama 3.1, Llama 3.3
    • •Vector Databases: Pinecone, Chroma
    • •AI Development Tools: LangChain, LlamaIndex, Ollama
    • •Model Fine-tuning & Prompt Engineering
    • •AI Integration & API Implementation
    System Design
    • •Microservices Architecture
    • •Message Queues
    • •Caching Strategies
    • •API Gateway Implementation
    • •Load Balancing & Scaling
    Database & ORM
    • •SQL: PostgreSQL, MySQL, Prisma ORM, TypeORM
    • •NoSQL: MongoDB, Mongoose
    • •Query Optimization & Database Design
    DevOps & Infrastructure
    • •AWS, Microsoft Azure
    • •Docker & Kubernetes
    • •Terraform
    • •Ansible
    • •CI/CD - GitHub Actions, Jenkins
    • •Monitoring & Observability - Prometheus & Grafana
    • •Nginx, Traefik
    • •Linux Server Administration/Scripting - Bash, Python
    Development Tools
    • •Version Control: Git, GitHub, GitLab
    • •Project Management: Jira, Trello, Linear
    • •Documentation: Swagger, Postman
    Education

    Software Engineering

    ALX Africa

    CS50

    Harvard

    Backend Development and APIs

    FreeCodeCamp

    Web Development

    Angela Yu @ Udemy