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Hello,
I am
  John A. Ogbighen

Backend Java Developer with 3+ years of experience building scalable REST APIs, Spring Boot microservices, and enterprise-grade backend systems. Skilled in Java 8/11/17, SQL & NoSQL databases, Docker, CI/CD pipelines, and AWS, with a strong focus on performance, reliability, and clean architecture.

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John A. Ogbighen, Jr.

Backend Java Developer

About Me

About

Building secure, scalable, and cloud-ready enterprise Applications.

Backend Java Developer with 3+ years of hands-on experience designing and building scalable REST APIs, Spring Boot microservices, and enterprise-grade backend systems for high-performance applications. Proficient in Java 8/11/17 with a strong focus on clean service-layer design, modular architecture, and secure backend development practices.

Experienced with SQL and NoSQL databases including PostgreSQL, MySQL, MongoDB, and Oracle, along with Docker-based containerization, CI/CD pipelines, and cloud fundamentals on AWS. Comfortable working in Agile/Scrum environments, collaborating with cross-functional teams, and delivering reliable, production-ready backend solutions with a focus on performance, stability, and maintainability.

  • Full Name:John A. Ogbighen
  • Language:English
  • Phone No:(304) 314-3235
  • Email:ghenjohn@webappn.com
  • Address:Snellville, GA
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Java & Spring Boot

Backend development, microservices, REST APIs, Hibernate, and JSP/Servlets.

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React & Angular

Building responsive and interactive UIs with React.js and Angular (v2–15).

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Cloud & DevOps

AWS, Azure, Docker, Kubernetes, Terraform, Jenkins, GitLab CI/CD.

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Database Management

Oracle, PostgreSQL, MySQL, MongoDB, SQL Server.

My Resume

Achievements

Education

  • Jan 2019 – May 2021
    Bachelor of Science, Computer Engineering
    - Georgia Institute of Technology | USA

    Completed advanced undergraduate studies in Computer Engineering with a strong focus on software development, computer systems, data structures, and algorithms. Built a solid foundation in programming, databases, and system-level design through academic projects and coursework.

  • Aug 2017 – Dec 2018
    Computer Engineering (Undergraduate Coursework)
    - Georgia State University | USA

    Completed core undergraduate coursework in computer engineering including programming fundamentals, mathematics, digital systems, and data structures. Developed early hands-on experience with software development concepts and engineering problem-solving.

Experience

  • Sept 2022 – Present
    SOFI - Backend Java Developer | Atlanta, GA

    💠 Built REST APIs using Java & Spring Boot for lending and payment systems.
    💠 Implemented JWT security with Spring Security and optimized SQL queries on PostgreSQL & MySQL.
    💠 Developed automated tests with JUnit & Mockito and worked in Agile sprints.

    Environment: Java, Spring Boot, Spring Security, REST APIs, PostgreSQL, MySQL, Docker, Git, Jenkins, AWS, Postman, JUnit, Mockito

  • Dec 2024 – Present
    Outlier - AI Trainer

    💠 Improved AI model accuracy by labeling, editing images, and validating AI-generated outputs.
    💠 Provided step-by-step website navigation instructions to train human-in-the-loop AI systems.
    💠 Supported quality assurance of AI predictions through continuous feedback and corrections.

    Environment: AI Training Tools, Image Annotation, Web Navigation Testing, QA Processes

My service

service
Backend Development

Backend Development

Robust APIs and microservices with Java & Spring Boot.

Backend Development

Designing and implementing secure, high-performance APIs, microservices, and event-driven architectures with Kafka and Hibernate ORM.

Frontend Development

Frontend Development

Dynamic and responsive UI with React.js & Angular.

Frontend Development

Creating user-focused, responsive interfaces using Angular (v2–15), React.js, Bootstrap, and modern UI/UX practices.

Cloud Integration

Cloud Integration

Deploying and scaling apps on AWS & Azure.

Cloud Integration

Implementing secure, cost-efficient deployments using AWS, Azure, Docker, Kubernetes, and Terraform for scalable solutions.

System Optimization

System Optimization

Enhancing application performance and security.

System Optimization

Optimizing performance, database queries, and applying security practices likeOAuth2/JWT authentication and Section 508 compliance.

My Traits

Traits

Problem Solver

Analytical thinker with a passion for tackling complex challenges.

Problem Solver

Known for breaking down complicated technical issues into practical, innovative solutions while maintaining efficiency.

Adaptable

Thrives in dynamic environments and embraces new technologies.

Adaptable

Quick to learn emerging tools and frameworks, seamlessly adjusting to evolving project requirements.

Team Player

Works effectively with diverse teams to achieve shared goals.

Team Player

Strong communicator and supportive colleague, fostering an environment of trust, knowledge-sharing, and growth.

Detail-Oriented

Focuses on precision and quality in every aspect of work.

Detail-Oriented

Committed to delivering clean, reliable, and well-documented solutions with long-term sustainability in mind.

My Projects

Portfolio
  • ALL
  • DEVELOPMENT
  • CLOUD
  • INTEGRATION

Spring Social Media Blog API

REST API | Backend Development

Developed a Spring-based REST API for user registration, post creation, retrieval, and filtering. Implemented controller–service–repository architecture with secure SQL logic using JDBC.

+
  • Duration : July 2025
  • Client : Personal Project
  • Tech : Java, Spring Boot, JDBC, SQL
  • Type : Backend REST API

Social Media Blog API (Javalin)

CRUD API | Backend Development

Built a lightweight CRUD-based REST API using Javalin and a SQL database. Implemented routing, validation, update/delete operations, and JDBC query execution.

+
  • Duration : June – July 2025
  • Client : Personal Project
  • Tech : Java, Javalin, JDBC, SQL
  • Type : Backend REST API

IBM Data Analyst Capstone

Data Analytics | Visualization

Analyzed large datasets using Python and SQL. Built interactive dashboards in IBM Cognos and presented insights on programming-language usage trends.

+
  • Duration : Jan 2024
  • Client : IBM
  • Tech : Python, SQL, IBM Cognos
  • Type : Data Analytics Project

Equipment Inventory Cleaning & Analysis

Data Cleaning | Reporting

Cleaned and analyzed equipment datasets using Excel, PivotTables, and calculated fields to produce structured operational and performance reports.

+
  • Duration : Dec 2023
  • Client : Internal / Academic
  • Tech : MS Excel, PivotTables
  • Type : Data Cleaning & Analysis

Achievements Certifications

Blogs
Bootcamp

CodePath Training Labs | Nov 2021 – Aug 2022

Backend program covering Core Java, OOP, REST APIs, Spring Boot, SQL, Git/GitHub, Agile workflows, and API testing with Postman & JUnit.

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Software Skills

Excel, Word, PowerPoint, Git, IBM Cognos

Proficient in productivity and data visualization tools for effective reporting, team collaboration, and enhancing overall project efficiency.

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Soft Skills

Communication, Documentation, Team Collaboration

Strong communication skills and a collaborative mindset for effective teamwork and documentation.

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Languages

English (Native)

Native-level proficiency in English with exceptional professional communication skills for documentation, presentations, and client interaction, ensuring clarity and effectiveness in all interactions.

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Get in Touch

Contact

E-Mail

  ghenjohn@webappn.com

Contact

  (304) 314-3235

Address

  Snellville, GA