D
Dariusz Quach
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Warsaw, Masovian Voivodeship, Poland
Résumé
Jobs
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- VSenior Software EngineerVazcoMar 2025 - Current (1 year 3 months)• Architected feed and front page surfaces using React and TypeScript, implementing component-driven pages for Feed, Front Page, and Sector Hubs to support multi-format content streams. • Integrated the TradingView-style charting widget into Symbol pages, wiring the widget to UDF-compatible endpoints and a WebSocket market data feed for sub-second updates. • Wired frontend surfaces to GraphQL and REST endpoints, consuming frontpage_rankings and symbol-level rails and rendering ranking outputs with transparency into scoring parameters. • Engineered RS-weighted moderation panels that consume LLM classification outputs and embeddings-based similarity signals to display severity scores and suppression states in real time. • Optimized rendering
- KSoftware EngineerKigglaJul 2019 - Dec 2024 (5 years 6 months)• Deployed feature flags and automatic canary rollouts via Docker images and GitHub Actions pipelines, enabling safe rollout of ranking UI changes to progressive user buckets. • Designed and implemented the Creator Studio workspace and Profile & Reputation pages using React, TypeScript, and Redux, supporting creator content creation and reputation signals. • Built frontpage rendering that consumed allocation domain projections such as frontpage_rankings and sector rankings via REST and GraphQL, rendering prioritized rails and slots. • Integrated engagement events and RS-weighted sentiment endpoints over WebSocket, ensuring real-time visibility tier transitions and client-side state updates at 250+ events per second. • Implemented symbol int
Junior Software DeveloperMagic LeapJan 2018 - Jun 2019 (1 year 6 months)• Implemented interactive UI components with plain JavaScript, HTML5, and CSS3 as part of early frontend tasks, focusing on responsive layouts and cross-browser rendering. • Developed small data visualization prototypes using D3 and Canvas, validating charting approaches for time-series displays and preparing patterns for later TradingView-style integration. • Integrated simple REST endpoints in client pages and handled JSON parsing and error states to surface symbol metadata and basic market snapshots. • Created Python scripts to automate build artifacts and pre-render certain pages, gaining hands-on experience with Python tooling and lightweight ETL tasks. • Optimized asset delivery by introducing bundling improvements and lazy loading fo- Software Developer InternIBMJan 2017 - Dec 2017 (1 year)• Built basic single-page interfaces using JavaScript and jQuery to display API-driven data feeds, learning client-side fundamentals and asynchronous patterns. • Authored Python utilities to fetch and normalize data from external providers into CSVs for analysis, gaining experience with HTTP clients and data parsing. • Assisted in database queries against PostgreSQL for prototype reporting, learning schema navigation and writing simple SELECT and JOIN statements. • Executed unit and integration tests for frontend modules using basic test harnesses and documented reproducible steps for intermittent bugs. • Participated in daily standups and code reviews, applying feedback to improve code quality and incrementally adopt company coding standar
Education
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- Bachelor's degree in Computer ScienceUniversity of FloridaJan 2013 - Jan 2016 (3 years 1 month)