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RizeC Profile
Available Q3 2026
VerifiedEST. 2018

Alex Rivera

Senior Product EngineerBrooklyn, NY

Building infrastructure for real-time collaboration at scale. Specialized in distributed systems, operational transforms, and CRDT-based synchronization protocols.

Working Principle

“Build systems that remain comprehensible under load. Performance matters, but so does the ability to understand what breaks and why.”

Core Focus
Distributed SystemsReal-time SynchronizationProtocol Design
PROFILE_ACTIVERZ-SP-01CARBON
Production Impact

System performance metrics and adoption data from deployed infrastructure

Concurrent Load

100k+

Active users handled simultaneously across production deployments

SyncEngine
Sync Performance

<50ms

P95 latency for real-time state synchronization under peak load

SyncEngine
Community Impact

2.4k

Stars on open-sourced CRDT library, 187 forks from engineering teams

GitHub
Adoption Scale

50+

Production applications powered by released infrastructure libraries

SyncEngine
Selected Work

Technical case files documenting infrastructure projects, system architecture, and shipped products

CASE_001PrimaryOpen Source
2024–PRESENT

SyncEngine

Real-time collaborative editing engine handling 100,000+ concurrent users with sub-50ms sync latency. Built operational transform layer, presence system, and conflict resolution protocol. Open-sourced core CRDT library now powering 50+ production applications.

Stack:TypeScriptWebSocketRedisPostgreSQL
Repository
Performance Data
Concurrent

100k+

Latency

<50ms

Stars

2.4k

Forks

187

CASE_0022023–2024

FlowState

Founding Eng

Project management platform for distributed teams. Led product from 0→1, shipped async video standup feature adopted by 200+ teams.

200+ Teams

React · Node.js · WebRTC · FFmpeg

CASE_0032022–2023

DataPipe

Backend Lead

ETL platform for SaaS analytics. Designed plugin architecture processing 2M events/day, reduced data lag from hours to minutes.

2M Events/Day

Go · Kafka · ClickHouse · k8s

Experience

Professional engineering roles and organizational contributions

2024–PresentActive

Senior Product Engineer

Distributed Systems Lab

Leading protocol design for state synchronization infrastructure across distributed teams.

2022–2024Archive

Product Engineer

Velocity Labs

Shipped 3 products serving 50k+ users, established rapid iteration engineering practices.

2020–2022Archive

Backend Engineer

CloudMetrics

Owned data pipeline 10M+ events/day, reduced infrastructure costs 40% through optimization.

RizeC Profile System

Technical identity and case file documentation platform

RZ-SP-01Carbon
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