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Available for Staff / Lead Roles
Staff Full-Stack & Infrastructure Engineer

Engineering scalable web systems with precision & speed.

I design and build resilient microservices, developer SDKs, and pixel-perfect reactive interfaces inspired by Vercel & Linear.

10+
Years Experience
140+
Production Repos
2.4B+
Global Requests/Mo
Alex Rivera
Experience
10+ Years Staff Eng
Code Quality
Top 1% Architecture
01 // ABOUT THE ENGINEER

Obsessed with performance, clean abstractions, and developer experience.

My journey started with C++ game engine optimization before scaling web infrastructure handling millions of requests per minute.

Over the past decade, I have led core architecture teams at high-growth tech companies, reducing p99 API latencies by over 60% and designing APIs loved by thousands of developers.

Simplicity is prerequisite for reliability. Build clear mental models first.

Alex Rivera, Staff Full-Stack & Infrastructure Engineer
$120M+ Client Funding

Product Vision & Strategy

Venture Scale & Founder Alignment

Spearheading product strategy from zero-to-one for Series A-C startups, aligning user needs with business growth.

500+ Component Tokens

Design Systems & Tokens

Scalable UI Architecture

Architecting multi-platform design systems with automated Figma variables, React tokens, and documentation.

12x Site of the Day

Motion & Interactive Craft

Micro-interactions & 3D Spatial UI

Crafting fluid GSAP scroll sequences, interactive WebGL/Spline 3D visual experiences, and micro-interactions.

Mentored 30+ Designers

Design Leadership

Team Mentorship & RFC Culture

Directing design pods, running critique workshops, establishing UX quality standards, and mentoring designers.

02 // CAREER TIMELINE

Battle-tested leadership across high-growth tech companies.

Staff Infrastructure Engineer

Vortex Systems
2022 — Present
San Francisco, CA

Lead engineer for edge rendering runtime and real-time streaming pipeline powering global SaaS infrastructure.

  • Designed real-time event pipeline processing 18,000 events/sec with sub-10ms edge latency using Rust and WASM.
  • Migrated monolithic backend to Kubernetes & Go microservices, lowering monthly infrastructure compute cost by 38%.
  • Mentored 14 senior engineers across distributed systems and modern TypeScript practices.
RustTypeScriptWASMKubernetesGoGraphQLAWS

Senior Full-Stack Architect

Linear Labs
2019 — 2022
San Francisco, CA

Architected offline-first sync engine and real-time collaboration canvas for project tracking workspace.

  • Built optimistic UI update system with CRDT data structures for instantaneous client responsiveness.
  • Engineered custom WebSocket proxy handling 250,000 active socket connections simultaneously.
  • Improved Next.js initial web bundle load performance by 52% through dynamic chunking and tree-shaking.
ReactNext.jsWebSocketsCRDTsNode.jsPostgreSQLTailwindCSS

Software Engineer (Frontend Systems)

Vercel Ecosystem
2016 — 2019
Remote

Developed serverless analytics SDKs and interactive developer dashboard components.

  • Created lightweight analytics instrumentation library with 0 runtime dependencies (< 2KB gzip).
  • Implemented dark mode design system token pipeline consumed by 12 internal micro-apps.
TypeScriptReactServerlessNext.jsSCSSWebpack
03 // FEATURED WORK

Production applications & high-scale open source software.

HyperGrid DB — Edge Memory Cache
Systems & Infrastructure

HyperGrid DB — Edge Memory Cache

Ultra-low latency in-memory KV database written in Rust & WebAssembly.

Distributed memory caching proxy designed for edge runtime environments like Vercel Functions and Cloudflare Workers.

p99 Latency: 1.2ms
Throughput: 450k req/sec
RustWebAssemblyEdge ComputingRedis Protocol
LinearFlow — Realtime Workspace Engine
Web Application

LinearFlow — Realtime Workspace Engine

Production-ready issue tracker with offline-first synchronization.

Collaborative task planner inspired by Linear with keyboard shortcuts, instant search, and real-time multiplayer cursors.

Active Users: 35,000+
Lighthouse Score: 100/100
Next.js 15TypeScriptWebSocketsTailwindCSSPostgreSQL
DevPulse — Developer Telemetry CLI
Developer Tooling

DevPulse — Developer Telemetry CLI

Terminal monitoring agent for Rust & Node microservices.

Cross-platform CLI tool that captures heap dumps, active event loop lag, and network traces with zero overhead.

Crates Downloads: 180,000+
RustCLITelemetryPrometheus
NextForge — Production SaaS Boilerplate
Open Source

NextForge — Production SaaS Boilerplate

Opinionated starter kit with Auth, Payments, and Edge Database.

Open-source template for launching enterprise SaaS products in hours. Built with Next.js App Router and Prisma ORM.

React 19StripeSupabaseTypeScript
04 // TECHNICAL MASTERY

Engineering competencies & domain proficiency.

Core Engineering Mastery

10+ Years Professional Experience
TypeScript / JavaScript
10 yrs98%
Rust
4 yrs90%
Node.js / Express / NestJS
9 yrs95%
Go (Golang)
5 yrs85%
Python
6 yrs82%
TypeScript / JavaScriptRustNode.js / Express / NestJSGo (Golang)Python
05 // ACADEMIC FOUNDATIONS

Computer Science degrees & advanced certifications.

2014 — 2016

Master of Science in Computer Science

Stanford UniversityDistributed Systems & Database Architecture
Stanford, CA
  • Thesis on High-Throughput Consensus Protocols for Distributed Key-Value Stores.
  • President of Stanford Open Source Software Alliance.
Dean's Honor ListGPA: 3.95 / 4.0
2010 — 2014

Bachelor of Science in Software Engineering

UC BerkeleyComputer Science & Mathematics
Berkeley, CA
  • Dean’s Honor List for 8 consecutive semesters.
  • 1st Place Winner at Berkeley ACM Programming Competition.
Dean's Honor ListGPA: 3.95 / 4.0
06 // LET'S CONNECT

Have a complex architecture project in mind? Let's build together.

Available for Staff / Lead Roles

Let's build something extraordinary together.

Open for consulting engagements, staff engineering roles, or technical advisory for high-impact startups.

Social Channels:

Schedule a 30-Min Call

Direct technical intro on Cal.com

Book Discovery Call

Send a Direct Message

Responses typically sent within 24 hours.