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I am a software developer specializing in frontend engineering with growing expertise in fullstack and backend-oriented banking systems. I have a track record of building, integrating, and maintaining enterprise-grade web applications, hybrid systems, and unified messaging platforms in regulated financial environments. I thrive on collaborating with backend engineers, QA, and product teams to deliver secure, auditable solutions. I value clean architecture, reusable components, and Git-driven workflows to ensure scalable and maintainable code.…I am a software developer specializing in frontend engineering with growing expertise in fullstack and backend-oriented banking systems. I have a track record of building, integrating, and maintaining enterprise-grade web applications, hybrid systems, and unified messaging platforms in regulated financial environments. I thrive on collaborating with backend engineers, QA, and product teams to deliver secure, auditable solutions. I value clean architecture, reusable components, and Git-driven workflows to ensure scalable and maintainable code.

Jovan Maurel Bastian

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

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I am a software developer specializing in frontend engineering with growing expertise in fullstack and backend-oriented banking systems. I have a track record of building, integrating, and maintaining enterprise-grade web applications, hybrid systems, and unified messaging platforms in regulated financial environments. I thrive on collaborating with backend engineers, QA, and product teams to deliver secure, auditable solutions. I value clean architecture, reusable components, and Git-driven workflows to ensure scalable and maintainable code.…I am a software developer specializing in frontend engineering with growing expertise in fullstack and backend-oriented banking systems. I have a track record of building, integrating, and maintaining enterprise-grade web applications, hybrid systems, and unified messaging platforms in regulated financial environments. I thrive on collaborating with backend engineers, QA, and product teams to deliver secure, auditable solutions. I value clean architecture, reusable components, and Git-driven workflows to ensure scalable and maintainable code.

Available to hire

I am a software developer specializing in frontend engineering with growing expertise in fullstack and backend-oriented banking systems. I have a track record of building, integrating, and maintaining enterprise-grade web applications, hybrid systems, and unified messaging platforms in regulated financial environments.

I thrive on collaborating with backend engineers, QA, and product teams to deliver secure, auditable solutions. I value clean architecture, reusable components, and Git-driven workflows to ensure scalable and maintainable code.

Skills

Experience Level

Expert

Expert

Expert

Expert

Work Experience

Software Developer at PT Bank KEB Hana Indonesia

September 1, 2025 - Present

Developing and maintaining the Unified Messaging System (UMS) for Hana Bank and LINE Bank, handling multi-channel messaging flows (SMS, email) and vendor integrations. Implemented backend features including request validation, response normalization, error handling, and delivery status tracking. Designed REST API integrations between frontend, internal services, and external vendors. Focused on performance, security, and scalability for LINE Bank’s landing site and ongoing enhancements to LINE Bank’s hybrid web system. Collaborated with backend engineers, QA, and product teams, applying clean architecture principles and reusable components, with Git-based version control.

Front-end Developer at PT Bank Sinarmas Tbk

August 1, 2024 - September 1, 2025

Developed enterprise frontend applications for Loan Management System (LMS) and ABL System using Next.js and TypeScript. Implemented workflow approvals, restructuring, and collection modules deployed to national production environments. Integrated REST APIs using Axios, Promise-based handling, and useSWR for data synchronization. Handled production deployment setup, merge requests, and conducted peer code reviews. Implemented unit testing using Jest. Developed reusable UI components using Material UI, Sinarmas Design System, and Tailwind CSS. Collaborated across CLS, LMS, LOS to ensure functional alignment.

Front-end Developer at PT Mandala Multifinance Tbk

January 1, 2023 - August 1, 2024

Developed React-based internal applications for head office and branch operations. Delivered production-ready modules with national deployment coverage. Maintained and refactored existing codebases to improve stability and maintainability. Worked closely with UI/UX designers and cross-functional teams.

Front-end Developer at PT Digital Integrasi Asia

June 1, 2022 - December 1, 2022

Developed and maintained React Native-based social media application. Implemented real-time video call, chat, and gifting features with Agora integration. Led frontend task assignments within sprint planning cycles. Migrated UI implementation toward TypeScript-based architecture.

Front-end Developer & UX Engineer at Olympic Furniture Group

June 1, 2021 - December 1, 2021

Designed and developed partner landing pages and internal event platforms. Produced UI/UX designs using Figma and translated them into production-ready frontend code.

Front-end Developer Intern at PT Maybank Indonesia Finance Tbk

March 1, 2020 - February 1, 2021

Completed onboarding covering frontend, backend, and mobile development fundamentals. Developed mobile credit analyst application and produced UI wireframes.