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Fransiscus Hermanto

@fransiscushermanto

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

Indonesia

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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 (6 months)

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.