Sebi Unipan

/* Software engineer. Problem solver. Builder. */

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Skills & Expertise

Languages

TypeScriptJavaScriptPythonKotlinJavaPHPSQLHTML/CSS

Frameworks

ReactReact NativeReact QueryNext.jsNode.jsAngularRxJSNestJSLaravelTailwind CSS

Tools

GitGitHub ActionsDockerAndroidMongoDBMySQLPostgreSQLPrismaFirebaseAzureVercel

Concepts

REST APIsCI/CDWebSocketsgRPC/ProtobufAgile/ScrumUnit TestingState ManagementOOP

Experience

May 2023 – Present · Remote

Rave

Software Engineer
KotlinJavaAndroidREST APIs
  • Architected and shipped the Friends Page feature on Android for the leading watch party platform (millions of MAU), with implementation patterns adopted by iOS/Desktop teams, contributing to +100K monthly active user growth
  • Led vendor communications and technical integration of new ad providers and web indexing partners, driving 40% revenue growth on the Android platform
  • Developed the Crunchyroll provider end-to-end—first to achieve video playback on Android, then enabled iOS/Desktop teams to implement, earning a raise for exceptional performance
  • Revamped the Google Drive provider from legacy to modern architecture with 3-tier fallback streaming and network-adaptive quality selection, dramatically improving playback for one of the platform's most popular sources
  • Migrated legacy Java codebase to Kotlin with coroutines and structured concurrency, reducing code complexity by 50%
  • Diagnosed critical memory leaks and coordinated fixes with external SDK teams, maintaining 97%+ crash-free rate
May – August 2022 · Kelowna, BC

Minga

Jr. Software Developer
AngularTypeScriptgRPCProtobufRxJS
  • Implemented hall pass and behavioral points features with complex time-based logic and state management using Protobuf/gRPC, serving 20K+ students and teachers across 50+ schools daily
  • Identified and resolved 10+ UI bugs through QA collaboration, including screen scaling issues and unresponsive controls, improving cross-device compatibility
September 2021 – April 2022 · Kelowna, BC

Atomic47 Labs

Jr. Software Engineer
React NativeNode.jsNestJSMongoDBAzure
  • Optimized backend performance by refactoring to MongoDB aggregation pipelines and consolidating scattered calls, improving query speed by 80% and reducing total requests by 40%
  • Replaced Redux with React Query, cutting state management complexity by 50%
  • Diagnosed and fixed critical authentication bug in Auth0 token refresh flow; granted production access to debug, resolving login failures affecting all users
  • Built core Village App features: real-time WebSocket chat, geospatial friend discovery (1-150km), and 17-category marketplace, powering social discovery and local commerce
May – August 2021 · Richmond, BC

Jusaves

Software Engineer
LaravelPHPPythonMySQLscikit-learn
  • Designed product recommendation engine using K-Nearest Neighbors with cosine similarity and hierarchical geographic filtering, scaled to handle 2 million products
  • Implemented multi-role authentication with dynamic role switching between buyer, seller, and distributor, allowing users to operate across all marketplace sides

Projects

Education

University of British Columbia

Bachelor of Science in Computer Science

Graduated 2023

GPA: 4.0/4.33

🏅
Deputy Vice Chancellor Scholarship (2020–2023)Awarded for maintaining 80%+ academic average

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