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Fransiscus Hermanto

@fransiscushermanto

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Senior software engineer focused on frontend and user-centered product delivery.

Indonesia

Message

What I'm looking for

I seek roles where I can lead frontend development, improve UX and security, mentor engineers, and build reusable systems in fast-paced, collaborative teams.

I am a frontend-focused software engineer with four years of experience building scalable web products for e-commerce and fintech. I communicate complex technical requirements clearly to non-technical stakeholders and prioritize user experience, security, and maintainability.

I've led and supervised engineers on enterprise-wide projects, initiated product templates and automation workflows, and designed secure authentication and OTP flows. I proactively refactor and migrate codebases to improve readability, reduce duplication, and accelerate new product initialization.

I enjoy mentoring teammates, sharing best practices, and building shared UI libraries and tools that raise productivity across squads. I deliver results under tight deadlines while maintaining attention to detail and strong cross-functional collaboration.

Experience

Work history, roles, and key accomplishments

Current

Senior Fullstack Engineer II

Current

JULO Teknologi Finansial

May 2025 - Present (1 year 1 month)

Helped the lender team deliver production services and supported integration efforts to ensure reliable lender-facing systems and timely releases.

React Next.js TypeScript OAuth GitHub Actions API Design

Senior Software Engineer I

JULO Teknologi Finansial

Apr 2024 - May 2025 (1 year 1 month)

Initiated and supervised Merchant Financing and Leadgen Financing products, created project templates and GitHub Workflow automations, and managed a squad of 2 engineers to improve code quality and delivery speed.

TypeScript React OAuth GitHub Actions Code Review Templates

Web Frontend Engineer

JULO Teknologi Finansial

Jan 2023 - Apr 2024 (1 year 3 months)

Restructured frontend codebase (SoC) reducing component LOC by ~60%, migrated projects to TypeScript, built a shared UI library and security liveness tooling, and delivered partner dashboards.

React TypeScript Design Systems Vite Security Tools

Software Engineer Web Platform

Tokopedia

Aug 2022 - Dec 2022 (4 months)

Built a Search Platform Dashboard from scratch, fixed dynamic filter UX bugs and implemented a catalog feature to improve search relevance and user interactions.

React JavaScript UI Development UX Dashboard Development Frontend Architecture

Frontend Engineer

Topremit

Feb 2021 - Aug 2022 (1 year 6 months)

Acted as PIC for the web app, developed reusable components aligned to the design system, rebuilt internal admin and built Topremit for Business while mentoring interns and improving code quality.

React React Native JavaScript Design Systems Component Libraries Code Review Mentoring