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I am a highly dedicated and experienced Senior Backend Engineer with 5 years of progressive experience in software development, focusing on robust API creation, system architecture, and DevOps on AWS. I have led the backend lifecycle from architecture design (including serverless solutions) to deployment, maintenance, and QA, and I seek to leverage Python, Node.js, Java, and AWS services to drive innovation and system efficiency.…I am a highly dedicated and experienced Senior Backend Engineer with 5 years of progressive experience in software development, focusing on robust API creation, system architecture, and DevOps on AWS. I have led the backend lifecycle from architecture design (including serverless solutions) to deployment, maintenance, and QA, and I seek to leverage Python, Node.js, Java, and AWS services to drive innovation and system efficiency.

Kim ChanHyung

Back-End Developer, Full Stack Developer, Web Developer, +2

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I am a highly dedicated and experienced Senior Backend Engineer with 5 years of progressive experience in software development, focusing on robust API creation, system architecture, and DevOps on AWS. I have led the backend lifecycle from architecture design (including serverless solutions) to deployment, maintenance, and QA, and I seek to leverage Python, Node.js, Java, and AWS services to drive innovation and system efficiency.…I am a highly dedicated and experienced Senior Backend Engineer with 5 years of progressive experience in software development, focusing on robust API creation, system architecture, and DevOps on AWS. I have led the backend lifecycle from architecture design (including serverless solutions) to deployment, maintenance, and QA, and I seek to leverage Python, Node.js, Java, and AWS services to drive innovation and system efficiency.

Available to hire

I am a highly dedicated and experienced Senior Backend Engineer with 5 years of progressive experience in software development, focusing on robust API creation, system architecture, and DevOps on AWS.

I have led the backend lifecycle from architecture design (including serverless solutions) to deployment, maintenance, and QA, and I seek to leverage Python, Node.js, Java, and AWS services to drive innovation and system efficiency.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Senior Backend Engineer at LumiRx

March 1, 2025 - December 1, 2025

Led the development and management of the entire company platform's backend system, specializing in solutions using NFC tags for effective goods tracking and tracing. Designed and implemented a scalable, cost-efficient infrastructure utilizing serverless computing (Node.js/AWS Lambda) and docker containers, significantly reducing operational overhead and improving system elasticity. Managed project timelines and technical execution, ensuring the robust and reliable deployment of the backend architecture. Implemented caching strategies using Redis to improve application response times and reduce database load.

Backend/AWS Consultant (Contract) at Oz Corporation Ltd (Formal name Bnibiz)

January 1, 2024 - May 1, 2024

Provided expert consultation and hands-on development to finalize a critical platform project. Successfully implemented and refined the AWS architecture and backend services, ensuring project delivery met all technical specifications and deadlines.

Backend Engineer / Lead at Oz Corporation Ltd (Formal name Bnibiz)

February 1, 2022 - December 1, 2023

Spearheaded the design, development, and maintenance of all backend systems and AWS server infrastructure for the company's platforms, including Heradee and Aixoz. Took ownership of the entire AWS environment, implementing and managing infrastructure using a serverless approach where appropriate to ensure high availability and performance. Led and actively participated in commissions brought by the sales team, translating business requirements into scalable technical solutions. Utilized Python (Flask framework) for core backend development and managed integration with existing systems (e.g., WordPress).

Full-Time Backend Engineer (Junior) at Goalist Co., Ltd

April 1, 2020 - November 1, 2021

Developed and maintained core APIs using Python (Django) and Java (Spring Framework) for various applications. Primary responsibilities included API development, creating comprehensive unit and integration tests, performing code QA, and providing essential backend maintenance. Received foundational training in AWS architecture and cloud best practices, which formed the basis of subsequent DevOps roles.