I’m a backend-focused full-stack developer who specializes in building scalable SaaS platforms and high-performance REST APIs. I have 5+ years of experience working with Node.js, Spring Boot, SQL databases, and secure authentication systems (JWT, RBAC). I focus on clean architecture, performance optimization, and production reliability. I’ve reduced API latency significantly through SQL tuning and indexing, designed systems serving 1,000+ active users, and containerized services with Docker for consistent deployments. My sector experience includes SaaS systems, API-driven platforms, payment integrations, and cloud-based applications. What differentiates me is strong backend system thinking — I don’t just build features, I design stable, scalable foundations. Employment and project experience Senior Developer Salesforce January 2017 - March 2017 Full-stack Developer Microsoft January 2019 - March 2019…

Joanna Kelly

I’m a backend-focused full-stack developer who specializes in building scalable SaaS platforms and high-performance REST APIs. I have 5+ years of experience working with Node.js, Spring Boot, SQL databases, and secure authentication systems (JWT, RBAC). I focus on clean architecture, performance optimization, and production reliability. I’ve reduced API latency significantly through SQL tuning and indexing, designed systems serving 1,000+ active users, and containerized services with Docker for consistent deployments. My sector experience includes SaaS systems, API-driven platforms, payment integrations, and cloud-based applications. What differentiates me is strong backend system thinking — I don’t just build features, I design stable, scalable foundations. Employment and project experience Senior Developer Salesforce January 2017 - March 2017 Full-stack Developer Microsoft January 2019 - March 2019…

Available to hire

I’m a backend-focused full-stack developer who specializes in building scalable SaaS platforms and high-performance REST APIs. I have 5+ years of experience working with Node.js, Spring Boot, SQL databases, and secure authentication systems (JWT, RBAC).

I focus on clean architecture, performance optimization, and production reliability. I’ve reduced API latency significantly through SQL tuning and indexing, designed systems serving 1,000+ active users, and containerized services with Docker for consistent deployments.

My sector experience includes SaaS systems, API-driven platforms, payment integrations, and cloud-based applications. What differentiates me is strong backend system thinking — I don’t just build features, I design stable, scalable foundations.

Employment and project experience

Senior Developer Salesforce
January 2017 - March 2017

Full-stack Developer Microsoft
January 2019 - March 2019

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Skills

Experience Level

React JS
Expert
Node.js
Expert
TypeScript
Expert
Express
Expert
MySQL
Expert
JavaScript
Expert
MongoDB
Expert
SQL
Expert
Java
Expert
PostgreSQL
Expert
Vue.js
Expert
Docker
Expert
Kubernetes
Expert
Redis
Expert
AWS
Intermediate
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Language

English
Fluent

Work Experience

Full-Stack Engineer (Backend-Focused) at Nordic Digital Systems (Remote)
January 1, 2021 - January 1, 2023
Designed and maintained scalable REST APIs using Node.js and Spring Boot; implemented secure authentication (JWT, RBAC); optimized complex SQL queries to reduce API latency; designed APIs with authentication, validation, and structured error handling; refactored backend modules for scalability and maintainability; Dockerized services for consistent staging and development workflows; integrated third-party payments and analytics supporting core business operations; collaborated cross-functionally to improve API reliability and reduce production issues.
Full-Stack Engineer at Nova Solutions
January 1, 2021 - January 1, 2023
Built and maintained 5+ production web applications with backend-focused architecture; reduced API latency through SQL optimization; designed RESTful APIs with authentication and validation; refactored backend modules to improve scalability and maintainability; Dockerized services for consistent staging and development workflows; integrated third-party payments and analytics systems supporting core business operations.
Full-Stack Engineer (Backend-Focused) at Nordic Digital Systems
January 1, 2024 - Present
Designed and maintained scalable REST APIs using Node.js; Dockerized services to ensure consistent development and deployment workflows; Integrated third-party payment and analytics systems; Collaborated cross-functionally to improve API reliability, reduce production issues, and enhance long-term maintainability.
Spring Boot Backend API (Project) at Nova Solutions
January 1, 2025 - January 1, 2026
Spring Boot backend API project including RESTful endpoints, Spring Data JPA, JWT-based authentication, RBAC authorization, relational database schemas with MySQL; designed and implemented containerized services using Docker and Docker Compose.

Education

Bachelor of Science in Computer Science at North Carolina State University
January 1, 2017 - January 1, 2021
Bachelor of Science in Computer Science at North Carolina State University
January 1, 2017 - January 1, 2021

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services
    paper Spring Boot Backend API

    •Developed RESTful backend using Spring Boot and JPA
    •Implemented JWT-based authentication and RBAC authorization
    •Designed relational database schema with MySQL
    •Containerized using Docker and Docker Compose