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Experience

Engineering journey & enterprise impact

A career arc from foundational full-stack delivery at Cigna, through client-facing enterprise work at Infosys, to cloud-native production engineering at JPMorgan Chase.

Career Timeline

Building toward enterprise depth

Earlier roles that established full-stack craft, client collaboration, and the foundation for cloud and DevOps ownership at JPMorgan Chase.

  1. Infosys Ltd. (Client: Travelers Insurance)

    Full-Stack Software Developer

    United States

    February 2022October 2023

    Client engagement with Travelers Insurance — enterprise application delivery across backend services, web interfaces, and release-ready feature work.

    Delivered full-stack features for insurance-domain applications, strengthening API contracts, UI workflows, and quality practices while collaborating closely with client and delivery teams.

    Key Contributions

    • Built and enhanced Java/Spring Boot services supporting core business workflows
    • Designed and maintained REST APIs consumed by internal web applications
    • Implemented responsive UI features with modern JavaScript and React patterns
    • Improved data access and persistence flows using SQL-backed services
    • Added automated unit and integration checks to reduce regression risk
    • Partnered with client stakeholders to clarify requirements and ship incremental releases
    • Supported deployment readiness through code reviews, defect resolution, and sprint delivery

    Technologies

    • Java
    • Spring Boot
    • REST APIs
    • JavaScript
    • React
    • SQL
    • JUnit
    • Agile
  2. Cigna

    Java Full-Stack Developer

    United States

    August 2020January 2022

    Healthcare enterprise — full-stack development on Java-based applications with emphasis on reliable APIs, maintainable UI layers, and collaborative delivery.

    Developed and maintained Java full-stack application features, focusing on service reliability, clean API boundaries, and practical frontend updates in an Agile environment.

    Key Contributions

    • Implemented Java and Spring Boot backend features for production applications
    • Extended REST API endpoints to support evolving product requirements
    • Updated frontend screens and user flows with accessible, maintainable markup and JavaScript
    • Worked with relational data models and SQL queries for application persistence
    • Wrote unit tests to validate business logic and protect critical paths
    • Collaborated with cross-functional teammates to triage issues and deliver sprint commitments
    • Grew foundation in enterprise engineering practices that scaled into later cloud and DevOps work

    Technologies

    • Java
    • Spring Boot
    • REST APIs
    • JavaScript
    • HTML & CSS
    • SQL
    • JUnit
    • Agile

Engineering Highlights

Technical strengths beyond a single employer

A scannable view of backend, cloud, frontend, architecture, and testing capabilities used across enterprise and product work.

Backend Engineering

  • Java
  • Spring Boot
  • REST APIs
  • Microservices
  • Kafka
  • PostgreSQL

Cloud & DevOps

  • AWS
  • Docker
  • Terraform
  • Jenkins
  • CI/CD
  • Infrastructure as Code

Frontend

  • React
  • React Native
  • Next.js
  • TypeScript

Architecture

  • System Design
  • API Design
  • Authentication
  • OIDC
  • Security
  • Scalability

Testing

  • Unit Testing
  • Integration Testing
  • API Testing
  • Performance Testing
  • SonarQube

Featured Projects

From enterprise craft to product ownership

Continue into flagship work that applies the same engineering discipline to end-to-end products.

Joe Limo customer app home screen with quick actions for new reservation, upload itinerary, and ride history

Transportation Technology Platform

Joe Limo

Production Launch in Progress

A full transportation-management platform: customer and driver mobile apps, an admin dashboard, backend APIs, and production deployment infrastructure.

  • React Native
  • Expo
  • Java
  • Spring Boot
  • React
  • TypeScript