SURABAYA, ID · UTC+7open to work

DIO
STANIA
ADINATA

software engineer · quantitative systems

Final-year Game Technology student at PENS (graduating 2027) building quantitative tools and backend web systems. Seeking Quantitative Developer or Backend / Full-Stack Software Engineering internships and junior roles (remote or hybrid).

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AREAS OF PRACTICE

A hybrid background combining game technology fundamentals with modern financial software engineering.

Quantitative Systems

Stochastic simulation, Modern Portfolio Theory, and actuarial liability valuation with VaR / CVaR risk metrics.

Backend & Web Systems

REST APIs, relational data models, and interactive web frontends with FastAPI, Spring Boot, Vue 3, and SQL.

Data & Computation

Directed Acyclic Graph (DAG) dependency evaluation, exact decimal arithmetic for money, and vectorized NumPy computation.

Game Technology Foundation

Gameplay state machines, turn-based battle logic, and simulation loops built in Unity C#.

Core focus: Applying simulation logic and structured state management to backend and financial software.

Background

// SELECTED WORK

ACTUARIAL CASH-FLOW SIMULATION ENGINE

VUE 3 · FASTAPI · DOCKER

FLAGSHIP · SOLO PROJECT· 2026

Actura

Values life-insurance liabilities two ways: a deterministic run projects the Best Estimate Liability (BEL) under fixed best-estimate assumptions, and a Monte Carlo run evaluates cash flows across stochastic interest-rate scenarios to produce a liability distribution with VaR / CVaR.

10,000 Monte Carlo paths in 0.07 s · 10,000-policy portfolio valuation in 0.12 s (Ryzen 7 7735HS)

What I built (solo): the FastAPI valuation and DAG execution engine, the Vue 3 / Vue Flow logic workbench with ECharts visualizations, and the Docker setup.

Code

Quantitative allocationLIVE TOOL

Stock Portfolio Optimizer

Finds the maximum-Sharpe, long-only allocation with SciPy SLSQP, plots it against 10,000 random-weight portfolios, and reports parametric VaR / CVaR (95%) plus historical stress tests.

Built (solo):SLSQP optimizer · frontier chart · backtest & stress tests

Code Live demo

EFFICIENT FRONTIER · MAX SHARPE

OPTIMAL W*

Software engineering bridgeSDUST · CHINA

Book-it-quick

A personal bookkeeping web app built in a 10-day software production module at SDUST. Money is stored as BigDecimal / DECIMAL(15,2) to avoid floating-point drift, with multi-currency conversion and JWT authentication.

Spring Boot · MyBatis · Vue 3 · Element Plus · MySQL · ECharts

Code

All projects

// BACKGROUND

LEARNING PATH

From Game Systems to Backend & Quantitative Tools

Studying Game Technology introduced me to programming through simulation loops, state machines, and probability math. Along the way, I realized the parts I enjoyed most weren't graphics or level design—they were data modeling, system logic, and numerical simulation.

01
GAME TECHNOLOGY FOUNDATIONS (PENS)
Learned object-oriented programming in C#, state machines, turn/tick-based simulation loops, and relational database design for game systems.
02
BACKEND & WEB ENGINEERING (SDUST EXCHANGE)
Expanded into full-stack web development using Java (Spring Boot), Python (FastAPI), Vue 3, and SQL—building REST APIs and a bookkeeping app.
03
EXPLORING QUANTITATIVE & FINANCIAL SOFTWARE
Started applying simulation logic and numerical libraries (NumPy, SciPy) to financial problems—building an actuarial cash-flow engine (Actura) and a portfolio optimization tool.

Different domain, familiar building blocks: clear state rules, structured data, and reproducible calculations.

CORE ARSENAL

Languages: PythonJavaTypeScript / JavaScriptC#SQL
Frameworks: FastAPISpring BootVue 3StreamlitUnityGodot
Data & Infrastructure: NumPySciPyPlotlyEChartsMySQLSQLiteDocker

EXPERIENCE

Asah / DicodingNOW

AI Full-Stack Developer Apprenticeship

Completing the AI Full-Stack Developer learning path (Dicoding & GoTo), building web applications and integrating LLM/AI APIs into backend services.

GoogleNOW

Google Student Ambassador

Organizing campus developer workshops, facilitating peer study groups on Google technologies and AI tools, and sharing technical learning resources with students at PENS.

Shandong University of Science and Technology (SDUST)MAR–JUL 2026

Exchange Student — Software Engineering

One-semester exchange in Software Engineering in Qingdao, China. Coursework included a 10-day software production module, where I built Book-it-quick.

GECH Surabaya2024 – JAN 2025

Junior Game Designer

Simulation state machines, battle math, and player state flow.

LOCATIONSURABAYA, ID · REMOTE READY (UTC+7)

RECOGNITION

▪ Gameseed 2025: Top 60 of 122 teams with the Unity game Wacky Whackers.
▪ KMIPN 2025 Finalist with the multiplayer educational simulation game Makan Siang Bergizi.
▪ SDUST Exchange Award (2026): scholarship awardee for a one-semester international exchange in Software Engineering at Shandong University of Science and Technology, China.
▪ Temasek ITE SCALE Programme Award (2025): selected as a Temasek Foundation scholarship awardee for a cross-cultural technical and leadership exchange programme in Singapore.

You've seen what I build. Let's build something together.

Surabaya, Indonesia · Open to Quantitative Developer & Software Engineering internships or junior roles (Remote / Hybrid)

dioadinata520@gmail.com

DIOSTANIAADINATA