D
Dawid Nguyen Van
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Warsaw, Masovian Voivodeship, Poland
Résumé
Jobs
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Senior Software EngineerHexagonMar 2024 - Current (2 years 8 months)• Spearheaded delivery of the core Feed, Front Page, Symbol Intelligence, and Charts surfaces using React, TypeScript, and component-driven architecture for a production financial media app
• Implemented frontend wiring to REST, GraphQL, and WebSocket APIs to consume allocation domain projections including frontpage_rankings, sector rankings, and symbol-level content rails
• Wired the TradingView-style charting widget to a UDF-compatible datafeed by integrating 4 endpoints (/tv/symbols, /tv/search, /tv/history, /tv/quotes) and mapping market ticks to UI layers
• Integrated RS-driven ranking and audition logic into UI surfaces to surface visibility tiers, audition buckets, and tier graduation indicators with deterministic PRNG- GSoftware EngineerGeniuseeSep 2020 - Feb 2024 (3 years 6 months)• Tuned frontend clients in React and TypeScript to consume hybrid GraphQL and REST backends for content
feeds and symbol search experiences
• Mounted WebSocket-driven live updates for market and engagement signals and wired event handlers to
projection endpoints supporting sector and symbol ranking displays
• Composed a symbol search Ul that combined full-text search with embeddings-based similarity using
Elasticsearch and embedding service integrations
• Mapped allocation projections and ranking outputs into front-end rails and created Ul components to visualize
scoring parameters and rank transparency
• Connected TradingView-compatible charts and custom overlays by integrating a data adapter layer - Junior Software DeveloperSparqJan 2018 - Jun 2020 (2 years 6 months)• Piloted feature work in JavaScript on dynamic Uls, implementing client-side routing, state management, and
responsive components for web portals
• Enhanced server integrations using REST endpoints and wrote lightweight Node.js middleware for data
transformation between frontend and backend
• Streamlined data fetching with basic WebSocket subscriptions for live notifications and mapped socket
messages into Ul state machines
• Modernized charting prototypes using D3 to visualize time series and instrument-level metrics for trading-style
dashboards
• Validated SQL queries and schema migrations against PostgreSQL instances as part of feature rollouts and
data model adjustments
• Automated end- - Software Developer InternGitHubMay 2017 - Aug 2017 (4 months)• Optimized front-end features in JavaScript, improving rendering reliability across multiple browsers during the
internship program
• Documented API usage patterns and wrote example REST client snippets to onboard engineers to internal
services
• Prototyped small tooling in Python to analyze usage logs and synthesize simple metrics for Ul performance
reviews
• Fixed cross-origin and authentication edge cases when consuming internal WebSocket test feeds for demo
surfaces
•
Instrumented lightweight unit tests and contributed to test suites to validate visual components under mocked
API conditions
• Onboarded to source control workflows and contributed pull requests that included code rev
Education
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- Master's degree in Computer ScienceUniversity of WashingtonJan 2016 - Jan 2017 (1 year 1 month)
- Bachelor's degree in Computer ScienceUniversity of WashingtonJan 2012 - Jan 2016 (4 years 1 month)