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Renado Paria

renadoparia@gmail.com GitHub LinkedIn ktfo.gg A* & Friends More

Featured Projects

ktfo.gg — Fight Picks & Predictions
  • Built, deployed, and operate ktfo.gg, a live, real-time MMA prediction platform with a Go (Chi) backend, React/TypeScript frontend, PostgreSQL, and Redis — with WebSocket-driven updates for live scoring, results, and event state
  • Architected a multi-tenant, event-driven system using a transactional outbox, Redis Streams, and consumer groups to reliably process and broadcast domain events (fight updates, pick locking, scoring) with low-latency fan-out to clients
  • Reduced scoring pipeline latency from 14s → 2–3s under 10k simulated concurrent users by replacing synchronous workflows with parallelized batch processing and stream-based workers
  • Designed a multi-dimensional scoring engine supporting predictions across winner, method, round, and time, with scorecard adjudication and a risk-reward "hardcore" mode driven by crowd-percentage multipliers
  • Built leaderboard systems (global and per-event) using Redis sorted sets with batched writes and infinite scroll for full ranking visibility
  • Built a full event operations platform (organizations, fighters, fight cards, weigh-ins, results) with optimistic concurrency control and intent-based action routing
  • Built a server-authoritative live fight clock with a finite state machine enforcing legal transitions across six states — validated in Go application logic and PostgreSQL CHECK constraints — with client-side elapsed time derived from server timestamps and operator tools for backdated starts and clock correction
  • Built a public live broadcast view with real-time play-by-play commentary, server-stamped clock snapshots on every event, and a sequenced feed — powered by a multi-room WebSocket hub with event, user, and fight-scoped routing, backed by Redis Pub/Sub for cross-instance fan-out
  • Enforced end-to-end type safety with Zod schema validation on client and server, neverthrow Result types with exhaustive error handling, and safeFetch abstractions wrapping all API boundaries
A* and Friends — Pathfinding Visualizer
  • Built an interactive visualizer for A*, Dijkstra, BFS, and Greedy BFS using React, TypeScript, TailwindCSS, and Vitest
  • Implemented advanced config options: G/H weight sliders, heuristic toggles, diagonal movement with cost multipliers, and terrain-based weight presets
  • Developed a fully editable grid with cell-level weight editing, drag-to-paint controls, and start/goal/wall placement
  • Designed timeline playback modes (snapshot vs. granular) with state-synced animations for step-by-step debugging and exploration
  • Added visual overlays for visited/frontier/path states, including cost updates and stats to show the algorithm's decision making
  • Wrote comprehensive unit tests for core logic (A*, heap, path reconstruction, f-cost) using Vitest and automated CI via GitHub Actions
  • Engineered fallback goal handling when the initial goal is unreachable, including ghost path previews to simulate alternate paths

Experience

AlphaMap — Backend Engineer (Remote)
  • Developed an advanced data integration solution to unify multiple POI datasets, using string similarity algorithms along with geographic distance to improve data accuracy and consistency
  • Spearheaded a tenant finder recommendation engine utilizing the integrated POI dataset, significantly enhancing matching accuracy and optimizing tenant placement
  • Refined a large-scale corporate ownership dataset by conducting analytics, identifying and correcting bad entries, implementing NER tagging, and consolidating duplicate data
  • Engineered a robust ETL pipeline to extract data from a GraphQL API, implementing transformations and normalization into seven tables across datasets ranging from 140M to 1B entries
  • Implemented a comprehensive caching mechanism using Redis, enhancing data access speed and overall system performance across the entire application
  • Built a Redis-backed rate limiter with per-package keys and real-time usage tracking to optimize resource allocation
  • Contributed to the development of an enterprise API, focusing on scalability, security, and integration capabilities

Education

University of the West Indies — BSc. Information Technology
First Class Honours · St. Augustine, Trinidad
University of the West Indies — BSc. Mathematics
Completed two years of coursework · St. Augustine, Trinidad

Skills

Languages TypeScript, Go, SQL Frontend React, React Router v7, TailwindCSS, shadcn, Zod, dnd-kit, react-hook-form, neverthrow Backend Chi, REST, GraphQL, WebSocket, Event-Driven Architecture, Transactional Outbox, Redis Pub/Sub, Redis Streams Databases PostgreSQL, Redis, Snowflake, PostGIS, PgVector, BigQuery Infra & Tools Docker, GitHub Actions, CI/CD, Vitest