01
· jakarta
NicoValerianMarcello.
$whoami →Application Dev @ BCA&&
I build things that shouldn't work on a student budget - RAG pipelines, Scopus-indexed research, and the occasional Balatro coach. Currently building applications at BCA in Jakarta.
ID · 001
// PROFILE.CARD// 2026
VERIFIED ★
Next.jsTypeScriptPythonPyTorchTailwind CSSpgvectorSupabaseVercelPostgreSQLReactRAG pipelinesNext.jsTypeScriptPythonPyTorchTailwind CSSpgvectorSupabaseVercelPostgreSQLReactRAG pipelines
// 02 · id_card
About / me
Hi, I'm Nico. I write code at 2am because the bug won't fix itself, and I'm allergic to boring UI.
I'm a Computer Science student at BINUS University and an Application Developer at BCA in Jakarta. I completed a Spring 2026 exchange at Korea University. My work spans full-stack engineering and applied ML - from AI-powered study tools and LLM benchmarks for low-resource languages, to full-stack apps that actually ship to real users.
I care about two things: interfaces that feel alive, and systems that do something genuinely useful. The rest is noise.
Dean's List · 3.95/4.00 GPA
BINUS University · 2025
Scopus-Indexed Publication
ICAICTA 2025 · first author
International Visiting Student, Seoul
Korea University · Spring 2026
Application Developer
BCA · Jakarta
// 03 · shipped_work
Select / a project
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// 04 · log_entries
Where I've / been
2026 - Present
Application Developer
BCA · Jakarta
- Building and maintaining applications for BCA.
BCA
Feb - Jun 2026
Visiting Student
Korea University · Seoul
- Advanced ML coursework; cross-cultural research collaboration.
- One of four students selected from BINUS for the exchange program.
2024 - 2025
L&T Manager
BNCC · Bina Nusantara Computer Club
- Directed 4 staff and 6 IT tutors across 5 tracks (UI/UX, FE, BE, Java, C) - 11 classes, 140+ students.
- Launched ML track, expanding offerings from 5 to 6 core subjects.
- Organised company visit program for 50+ students.
Jul 2024 - Jan 2026
Scholarship Mentor
BINUS University
- Guided mentees across 25+ tracked sessions; cohort averaged up to 18% GPA improvement within a year.
2023 - 2024
L&T Activist
BNCC · Bina Nusantara Computer Club
- Developed curriculum modules for Backend and Java tracks.
- Evaluated 15+ tutor candidates; completed LDP producing a semester-long operational roadmap.
// 05 · credentials
Certified / things
// 05 · equipment
The / toolkit
[FE] Frontend
ReactNext.jsTypeScriptTailwind CSSAlpine.jsTanStack Query
[BE] Backend
PythonFastAPIFlaskLaravelSupabaseMySQL
[AI] AI & ML
pgvectorChromaDBYOLORapidOCRBM25
[OPS] Infra & Tools
GitVercelDockerDigitalOcean
// 06 · field_notes
Writing /& research
How I Built a RAG Pipeline That Actually Ships
A production postmortem on embeddings, chunking strategies, and the three weeks I spent fighting pgvector index configs - and what building Studium taught me when I had to do it all over again for Balatro Coach.
#engineeringRead →
Understanding Evolving Sentiment Dynamics in Indonesian Disaster-Related Tweets
Fine-tuning IndoBERT for aspect-sentiment analysis on 4,506 disaster tweets - uncovering how public sentiment toward Indonesian crises shifts over time, and what that tells authorities about unmet needs.
#researchRead →
// 07 · open_channel
Let's build
something / weird.
Open to research collaborations and interesting projects. Bonus points if it involves embeddings, strange UIs, or reasons to stay up past 3am.