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I am an experienced software engineer with 7+ years of experience and a strong background in developing scalable and high-performance applications. I am passionate about learning new technologies and implementing best practices to enhance software reliability and user experience. I enjoy collaborating with cross-functional teams to deliver impactful solutions.…

Steven Charles

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

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I am an experienced software engineer with 7+ years of experience and a strong background in developing scalable and high-performance applications. I am passionate about learning new technologies and implementing best practices to enhance software reliability and user experience. I enjoy collaborating with cross-functional teams to deliver impactful solutions.…

Available to hire

I am an experienced software engineer with 7+ years of experience and a strong background in developing scalable and high-performance applications.
I am passionate about learning new technologies and implementing best practices to enhance software reliability and user experience. I enjoy collaborating with cross-functional teams to deliver impactful solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer (Notification System) at Rakuten Ichiba

August 1, 2025 - Present

Led end-to-end system development, including architecture design, implementation, testing, deployment, and post-release monitoring for notification-related projects. Managed operational workflows (client inquiries, issue investigation, troubleshooting, and service maintenance). Maintained system reliability and performance under heavy incoming traffic, supporting numerous clients across the Rakuten Group ecosystem. Continuously improved system performance, reliability, and maintainability through refactoring, architectural improvements, and operational optimizations.

Senior Software Engineer (GopayLater & Gopay Pinjam) at Goto Financial

July 1, 2022 - July 1, 2025

Mentored new team members by sharing technical knowledge and hands-on onboarding. Took the initiative to improve and optimize the codebase by identifying inefficiencies, refactoring where needed, and implementing better development practices. Managed integration between our system and third-party providers (banks and payment gateways) to ensure a high success rate for disbursements and repayments, addressing issues promptly and optimizing system reliability. Ensured all systems complied with financial regulations and implemented best practices for data security and privacy. Contributed to infrastructure cost reduction through cloud migration.

Software Engineer (Accommodation Booking System) at Traveloka

March 1, 2018 - June 1, 2022

Maintained integration between demand and supply systems across core and post-booking flows, including booking, issue handling, rescheduling, and refunds. Supported the transition to a multi-repo structure and AWS multi-account setup to improve system scalability and team ownership. Refactored legacy code to improve readability and maintainability. Handled deployment processes and maintained infrastructure for microservices, ensuring reliable releases.

Software Developer Intern at Accel Lentera Indonesia

March 1, 2017 - February 1, 2018

Worked as a full-stack developer who designed and built a web-based application for Toyota Logistics System in Indonesia.

Laboratory Teaching Assistant at Binus University

February 1, 2015 - February 1, 2017

Taught and assisted university students in lab sessions of various programming languages and software usage. Researched on new applications to support lab center activities.