fransiscus.dev
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Hi, my name is

Fransiscus Xaverius.

I build software people actually use.

I am a software engineer specializing in building scalable, exceptional digital experiences.

Check out my work

About Me

Hello! My name is Fransiscus Xaverius and I enjoy creating things that live on the internet.

You can explore my repositories, latest commits, and project source codes directly on my GitHub profile.

Here are a few technologies I've been working with recently:

  • Go
  • Angular
  • JavaScript (ES6+)
  • React
  • Node.js
  • TypeScript
  • Python
  • AWS
Profile Photo

Where I've Worked

Associate Software Engineer
@ PT. HM Sampoerna Tbk/Philip Morris International | 2025 - Present
  • Architected scalable AWS cloud solutions, defining system design and infrastructure strategy end-to-end.
  • Pioneered the team’s first Go Fiber–based project and developed reusable boilerplate templates for backend services and Lambda functions
  • Led the development of a cloud-based, scalable importing system increasing speed by 60%.
  • Collaborated with business stakeholders to define requirements and implement new features.
  • Led both internal and vendor development teams to deliver features and tickets based on business product requirements
  • Mentored junior developers and interns through code reviews, guidance, and collaborative development.
React Angular Node.js Express.js AWS MySQL Go Fiber
Software Developer Intern II
@ PT. HM Sampoerna Tbk/Philip Morris International | 2025 - 2025
  • Responsible for full-stack development across frontend and backend modules, delivering new features end-to-end.
  • Led both internal and vendor development teams to deliver features and tickets based on business product requirements.
JavaScript HTML/SCSS Angular React PHP MySQL OpenAPI Specification (OAS) Express.js
Software Developer Intern I
@ PT. HM Sampoerna Tbk/Philip Morris International | 2024 - 2025
  • Contributed to the development of the AYO SRC ecosystem, with a focus on AYO Kasir and AYO Mitra.
  • Developed frontend features using responsive design principles to maintain consistent, cross-browser compatibility
  • Proposed and led the adoption of OpenAPI Specification (OAS), establishing standardized API contracts and documentation across the entire software engineering team
JavaScript HTML/SCSS Angular React OpenAPI Specification (OAS)
Freelance Web Developer
@ EClub Indonesia | 2024 - 2024
  • Used Go Gin to develop fast, reliable APIs.
  • Leveraged Go’s built-in testing package along with gomock to create comprehensive unit tests.
  • Created responsive, mobile-friendly components with pixel perfect design approach on Nextjs
Go Gin MySQL GoMock Nextjs

Some Things I've Worked On

AYO Kasir

AYO Kasir

A B2C Cashier App used by both regular retailers and IQOS Booths on Indonesia.

React.js Angular Laravel MySQL
AYO Mitra

AYO Mitra

A web based B2B Platform for AYO SRC by Sampoerna.

Angular Laravel MySQL
CITA

CITA

A web based B2B Ordering Platform for AYO SRC by Sampoerna.

React.js Node.js Websocket MySQL
Yongki Komaladi

Yongki Komaladi Online Catalogue

A web based catalogue and company profile for Yongki Komaladi shoes.

React Go Gin PostgreSQL
GitHub

Ditawarin

A peer to peer bidding based ecommerce site. Complete with Payment Gateway and Delivery Cost Calculation Integration

React Express.js MongoDB
GitHub

Code-Exam

A Competitive programming platform with a semi-automated judging system. Created with Judge0.

React Express.js MySQL

Interested in working together?

Get In Touch

My inbox is always open—whether you have a project in mind, a question, or just want to say hello. I’ll get back to you as soon as I can!

Say Hello Chat on WhatsApp

Designed & Built by Fransiscus Xaverius