01
Building applications
From web and mobile apps
to mobile team leadership.
2017–2023
Telkomsel · Telkomcel · Sribuu · BintanGO
Flutter, clean architecture, code reviews,
and developing people alongside products.
01 / Personal portfolio
Arief
Wijaya.
Tech Lead & Software Engineer
I build mobile apps, web platforms,
and the APIs behind them.
Indonesia · Building since 2017
02
Working with document AI
Turning documents
into usable data.
January–June 2024 · Fintelite
OCR, text recognition, entity extraction,
and LLM integration.
03
Leading engineering
Architecture. Systems.
Team leadership.
From July 2024 · Fintelite
Connecting engineering decisions
with product priorities.
Three chapters. One ongoing journey.
02 / Work
Projects.
Applications, platforms and the engineering behind them. Explore each project, my contribution and the interface.
AnyCheck
Document intelligence & workflows
Document review with Orbit in context.
Jagoan Voucher
Commerce & creator tools
A marketplace, with a creator side.
Sribuu
Personal finance · Mobile engineering
Everyday finance, built for mobile.
MyTimor
Multi-role mobile applications
Three apps, one connected service.
GoMUSI
Public-service applications
A request, through its next steps.
E-Library UNTL
Web applications & administration
A digital library, beyond its catalogue.
Sirajamusi
Performance assessment
Assessment, from evidence to report.
Sinabung
Competency & performance
Competency records, through review.
Siapsemeru
Assessment workflows
Achievements, evidence and review.
Monaling
Field data & offline sync
Fieldwork, connected.
Gardu PLN
UP2D Health Index
Asset health, ready for inspection.
ETS · Electronic Traffic Sign
Maps & field reporting
Traffic signs, mapped.
BintanGO
Creator platform
Creator products, built by a team.
Musica
Music & karaoke
From music discovery to karaoke.
SCM Tools
Reporting automation
From source data to delivered reports.
CCTV Dishub
Location-based monitoring
City cameras, within reach.
Gerai SDM
Human-resource services
Personnel services, connected.
Sentuh Asetku
Land-asset mapping
Land assets, easier to locate.
Nutrizer
Nutrition information
Nutrition tools for everyday use.
Public source code
NutrizerNutrition information
mina-finansialPersonal finance
Game CenterFlutter architecture reference
Explore the public repositories on GitHub.
Ways to work together
Software for your next project.
A new product, a connected backend, or an existing application that needs attention.
01 / Mobile
Mobile applications
Flutter applications for Android and iOS, including products with different customer, operator and administrator roles.
02 / Web & APIs
The product behind the screen
Web platforms, administration tools and the backend APIs that connect the work across them.
03 / Existing systems
Improve what you have
Application architecture, code quality and technical direction for software that needs to keep moving.
03 / Full experience
Full experience.
Roles and dates at a glance. Some engagements overlapped.
Jul 2024–presentFinteliteTech Lead
Engineering leadership across AI-powered fintech products, including AnyCheck. Architecture, technical direction, and alignment with Product and Data teams.
Across my work at Fintelite, infrastructure costs fell by 80%+ with improved system performance. This broader result is not attributed solely to AnyCheck.
- LLM fine-tuning with the Data Team to improve extraction accuracy.
- Critical technical debt reduction and architecture modernisation.
- Product–engineering alignment that helped secure enterprise deals.
Jan–Jun 2024FinteliteMachine Learning Engineer
Built OCR models and pipelines for text detection, recognition, and entity extraction; integrated LLMs into document processing.
Jan 2022–Dec 2023Fintelite · SribuuSenior Frontend Engineer / Mobile Team Lead
Led the mobile team, researched improvements, reviewed code, and optimised the apps.
Jun–Dec 2021Fintelite · SribuuFrontend Engineer
Built the iOS and Android apps with Flutter and clean architecture.
May 2022–Jan 2024BintanGOFront-end Lead Mobile
Led and trained the mobile team, reviewed code, and designed the architecture of the Android and iOS apps.
Jul 2019–Mar 2022Telkomcel Timor LesteLead Developer / Fullstack Engineer
Developed commercial mobile and web apps, including Mytimor, Musica, and the eLib-UNTL digital library.
Jan 2019–Jun 2020PT. Tanjung Enim LestariTechnical ERP Specialist
Maintained ERP systems including Dynamic Avantis, AX, and IFS. Built SCM Tools for analysis, management, and automated reports via a Telegram bot.
Dec 2017–Jan 2019PT. TelkomselFullstack Developer
Developed and maintained mobile and web applications.
04 / A small engineering demo
Document →
structured data.
Illustrative example · synthetic data.
See how fields from a document map into structured output.
ACME SUPPLY CO.INVOICE
Sample document · not a real company record
- Invoice
- SAMPLE-001
- Date
- 11 Sep 2026
- Service
- Consulting
- Subtotal
- 100.00
- Tax
- 20.00
- Total
- 120.00
invoice_id—
total—
Take the scenic route
Step into My World.
A paper workshop, a studio after hours, and a small archipelago.
Three places to explore the work, at your own pace.
Optional adventure. Your CV shortcut is always one click away.
05 / Contact
Tell me about your project
Share the problem, who will use the product and what you already have. We can discuss the scope and whether I can help.
ariefwijayafirman@gmail.com