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Joseph Ellyson

@josephellyson

Message

I build and modernize enterprise platforms with Java, Node.js, React, AWS, and secure API integrations.

United States

Message

What I'm looking for

I'm looking to build and modernize high-visibility enterprise platforms, translating complex product and regulatory requirements into scalable services, secure integrations, reliable releases, and maintainable application architecture.

At Aiwyn, I architected InvoiceOS to unify billing, payments, and client account workflows, and led Collections Copilot integrations using Python, OpenAI APIs, and event-driven Node.js orchestration. I also decomposed billing services, modernized reconciliation pipelines, strengthened observability, and improved secure tenant access controls across finance platforms.

I've built enterprise services and web applications at Limble CMMS, SailPoint, and Navis using Java, Spring Boot, Node.js, React, Angular, PostgreSQL, Oracle, AWS, and REST APIs. My work spans identity integrations, maintenance operations, terminal logistics, production reliability, database performance, CI/CD, and modernization of high-visibility systems.

Experience

Work history, roles, and key accomplishments

Staff Software Engineer

Aiwyn

May 2025 - Jun 2026 (1 year 1 month)

Architected the InvoiceOS platform to unify billing, payments, and client account workflows using Node.js, TypeScript, React, PostgreSQL, and AWS. Spearheaded the Collections Copilot initiative by integrating LLM-assisted workflow suggestions into receivables operations.

Node TypeScript React PostgreSQL AWS Python Express Redux GitHub Actions SonarQube JWT IAM Cloudwatch REST APIs Webhooks Agile

Senior Software Engineer

Limble CMMS

Oct 2023 - May 2025 (1 year 7 months)

Revamped the Work Order Hub application with React, JavaScript, Node.js, and PostgreSQL, improving load times for maintenance dashboards. Directed the PreventiveOps project to expand scheduling logic and recurring maintenance workflows.

React JavaScript Node PostgreSQL REST APIs GitHub Actions Python NLP Agile

Senior Software Engineer

SailPoint

Jan 2019 - Jul 2023 (4 years 6 months)

Crafted backend services for the IdentityNow integration layer using Java, Spring Boot, REST APIs, and PostgreSQL. Advanced the Access Review Manager module with Java and Angular-based administrative screens.

Java Spring Boot REST APIs PostgreSQL Angular Maven SQL Agile

Software Engineer

Navis

Jul 2017 - Dec 2018 (1 year 5 months)

Programmed features for the TerminalFlow platform using Java, Spring, REST services, and Oracle. Enhanced the Gate Appointment Console with JavaScript-driven UI updates and backend service changes.

Java REST APIs Oracle JavaScript SQL Maven