Open to opportunities

Hanjung kim

@hanjungkim

Message

Senior full stack software engineer experienced with cloud-native, scalable web applications.

United States

Message

What I'm looking for

I seek a senior engineering role building cloud-native, scalable systems with strong DevOps practices, collaborative teams, and opportunities to mentor and improve operational efficiency.

I am a senior full stack software engineer with extensive experience building and maintaining large-scale web applications across PHP, Java, and modern JavaScript frameworks.

I have led development of mission-critical systems and over 100 e-commerce sites, focusing on performance, security, and scalable architecture using Laravel, Spring Boot, Kubernetes, and AWS.

I consistently apply CI/CD practices, containerization, and cloud-native patterns to improve deployment reliability and operational efficiency while mentoring teams and promoting agile methodologies.

I hold a B.S. in Computer Science and professional certifications, and I pursue practical, results-oriented solutions that deliver measurable business value.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

DootaIt America

Apr 2024 - Present (2 years 2 months)

Maintained and enhanced large-scale PHP 7.4 systems and developed cloud-native applications with Java/Spring Boot on Kubernetes and AWS to improve scalability and availability; streamlined delivery via Jenkins CI/CD and mentored team members.

PHP Java Spring Boot Kubernetes AWS Jenkins CI CD Microservices

Senior Software Developer

DreamWebSolution

Mar 2018 - Nov 2022 (4 years 8 months)

Developed 100+ high-performance e-commerce sites using PHP, Laravel, REST APIs and MySQL, and improved database security and scalability while exploring cloud-native solutions on AWS and Oracle Cloud.

PHP Laravel MySQL REST APIs AWS Oracle Cloud Database Optimization & Security

Software Developer

IDS&TRUST

Dec 2013 - Jun 2015 (1 year 6 months)

Built a CRM system with JSP and Oracle and migrated legacy PHP/MySQL applications to JSP/Oracle to improve architecture, performance, and data integrity for analytics initiatives.

JSP Oracle PHP MySQL Data Modeling CRM

Software Developer

EMCAST

Aug 2012 - Nov 2013 (1 year 3 months)

Developed web applications and APIs for corporate e-learning platforms using ASP, PHP, Oracle, and MySQL to integrate learning systems and enhance functionality.

PHP Oracle MySQL APIs E Learning System Integration

Software Developer

MyEdu Co.

Oct 2010 - Dec 2011 (1 year 2 months)

Developed educational websites for hospitals using ASP, PHP, MS-SQL and MySQL, collaborating with stakeholders to deliver user-friendly e-learning applications.

PHP SQL MySQL Web Development E Learning