Baris
Soybas

A single entry point that brings the team's dashboards and internal applications under one roof — pairing a curated landing page with centralised authorisation and user management.

Generates analyst commentary on individual Profit & Loss positions (GuV) by feeding curated financial data into an Azure OpenAI model — turning line-item numbers into draft narratives ready for review.

Computes statutory claims and equalisation reserves (Schadenreserve & Schwankungsrückstellung) for German insurance reporting, paired with an interactive dashboard that surfaces the underlying drivers and year-over-year fluctuations.

A LangChain prototype served as an internal API endpoint that answers natural-language questions two ways; a Text-to-SQL path that queries internal business data directly and a RAG path that retrieves from text-based internal knowledge packed into vector databases.

An optimizer for a running dinner — given a group of friends and their hosting preferences for appetizer, main or dessert, it assigns who hosts each course so the group's total walking distance across the city stays minimal under specified constraints.

A React component library published as an npm package — Radix UI primitives styled with Tailwind v4, built with tsup and documented in Storybook.

A FastAPI backend to power my future services — GitHub OAuth authentication, async SQLAlchemy over PostgreSQL, Redis caching and S3/MinIO storage, with Alembic migrations and Docker / Kubernetes deployment.

A Poisson goal-scoring model that predicts football match outcomes — scraping five seasons of results across Europe's top-five leagues, deriving home/away attack and defence strengths, then comparing the model's scoreline probabilities against published odds to surface positive expected-value bets.

Turns broker statements into German tax reports — parses PDF and CSV exports, converts every USD trade to EUR using ECB historical reference rates, then aggregates realized gains, losses, dividends and fees per month and year for filing.

A cluster of personal market experiments based on yfinance data; stock analysis with indicators like RSI, MACD, Bollinger Bands and ML price forecasting, an LSTM deep-learning price predictor, an ETF ROI backtester over custom date ranges and a compound-interest projector for recurring monthly investments.

An optimisation problem to find the optimal six-unit team combined with move data — searching across 9 generations, 1,025 Pokémon and 937 moves — plus analyses that surface curiosities.

A web tool built for production-line operators to browse known fabric defects with reference images, plus a free-text German search where an MLP classifier over TF-IDF features and text embeddings predicts the most likely root causes from historical defect-cause records, served from PostgreSQL.

Predicting the objective-function cost of an Angle-Distance Traveling Salesman variant — where edge cost depends on the turning angle at each vertex, not just on distance. ML models trained to estimate route cost without solving the full optimization.

Six mixed-integer optimization problems modeled & solved in Gurobi — bin packing with conflicts, hospital network design, political districting via column generation, longest-path knapsack, demand-side management and university timetabling.