I'm looking for remote software engineering opportunities, primarily focused on backend development. I'm particularly interested in Go, TypeScript/JavaScript, Node.js, REST APIs, PostgreSQL, and distributed systems.
Looking for a job
Rizya Rafael
@rizyarafael
Software Engineer at Equnix Business Solutions built secure credential tools for Chrome, Firefox and designed mobile credential security for Caraka.
IndonesiaWhat I'm looking for
At Equnix Business Solutions, I assessed PT Kereta Api Indonesia’s application architecture and proposed improvements that increased system performance by 5–50×.
I built a secure password-management extension for Chrome and ported it to Firefox with a dual-manifest build system. For Caraka, I designed client-side credential security using Argon2id, hardware-backed key storage, and encrypted recovery.
I also implemented a Go approval flow that connects API requests with mobile push notifications. Earlier, during my Internship Quality Control at PT Adhi Persada Beton, I improved an oil application system that reduced material waste and production costs by 30%.
Experience
Work history, roles, and key accomplishments
ES
Current
Software Engineer
Equnix Business Solutions
Oct 2025 - Present (1 year)
Conducted system assessment for PT Kereta Api Indonesia, improving system performance by 5-50x. Built a Chrome extension for secure password management and designed a client-side credential security system for a Flutter app.
PB
Internship Quality Control
PT Adhi Persada Beton
Feb 2022 - Jul 2022 (5 months)
Monitored end-to-end precast production across 24-hour cycles and implemented a more efficient oil application system, reducing material waste and cutting production costs by 30%. Documented quality inspections across 523 products.
Education
Degrees, certifications, and relevant coursework
Institut Teknologi Sepuluh Nopember
Bachelor's Degree, Civil Engineering
2019 - 2024
Pursued a degree in Civil Engineering from Institut Teknologi Sepuluh Nopember from 2019 to 2024.
HA
Hacktiv8
Bootcamp Certificate, Fullstack Development
Completed a Fullstack Developer bootcamp at Hacktiv8.
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
IndonesiaAuthorized to work in
Salary expectations
100000k+ IDR
Social media
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