Einar Mont
@einarmont
Senior software engineer specializing in real-time, high-performance full-stack systems.
United StatesWhat I'm looking for
I am a senior software engineer with 10+ years delivering high-performance, real-time SaaS frontends and scalable backend services for Tier-1 enterprise customers.
I led modernization efforts across mission-critical React/Next.js frontends and owned API contracts, real-time event schemas, messaging workflows (Kafka, RabbitMQ), and persistence layers (PostgreSQL, Redis) to improve reliability and release confidence.
I built component-driven design systems with Storybook and Tailwind, integrated AI/LLM features (OpenAI, LangChain, RAG) like a betting copilot, and governed microservices and monorepo architectures with CI/CD and observability tooling.
I have hands-on experience across the stack—TypeScript, Node.js, Python, AWS, Kubernetes, real-time websockets, testing (Jest, Playwright, Pytest), and mobile (React Native)—and I focus on scalable performance, resilience, and shipping user-centric solutions.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
OpenBet
Apr 2023 - Present (3 years 2 months)
Led modernization of large-scale, real-time SaaS frontends supporting 1M+ concurrent users, rebuilt React/Next.js experiences for performance and resilience, and integrated an AI Betting Copilot to surface guardrailed, source-cited responses tied to live odds.
Senior Full Stack Engineer
Postmates by Uber
Oct 2020 - Apr 2023 (2 years 6 months)
Led design and delivery of a real-time operations platform for monitoring 1,000+ robots, built map-based React/Mapbox workflows at 60 FPS and telemetry pipelines handling 1k–5k+ events/sec with ~1s UI latency.
Owned end-to-end delivery of a high-traffic product surface, improved feed performance via render and data-fetch optimizations, and built backend GraphQL endpoints and services for reliable launches at scale.
Modernized web UI by migrating Rails views to React, contributed Node.js services replacing monolith portions, and shipped React Native mobile features while improving observability and test coverage.
Education
Degrees, certifications, and relevant coursework
University of Tokyo
Master of Science, Computer Science
2013 - 2015
Completed a Master’s Degree in Computer Science at the University of Tokyo from 2013 to 2015.
University of Tokyo
Bachelor of Science, Computer Science
2009 - 2013
Completed a Bachelor of Science in Computer Science at the University of Tokyo from 2009 to 2013.
Tech stack
Software and tools used professionally
Google Tag Manager
D3.js
ECharts
GitHub
GitLab
Kubernetes
Cloudflare
Jenkins
CircleCI
GitHub Actions
React Native
Expo
PostgreSQL
MongoDB
Gmail
LaunchDarkly
Rollout
Node.js
Django
Next.js
NestJS
Tailwind CSS
Google Analytics
Neo4j
Redis
Terraform
Pulumi
SuperTest
React
Svelte
WebGL
Webpack
JavaScript
Python
Java
CSS 3
PHP
Mapbox
Kafka
RabbitMQ
TypeORM
Grafana
SQLAlchemy
iOS
Datadog
React Native Firebase
GraphQL
Firebase
Socket.IO
AWS Lambda
Zustand
TypeScript
pytest
Docker
WatermelonDB
Lottie
PostHog
Qdrant
LangChain
Shadcn/ui
Nx
Playwright
AutoGen
Pydantic
Cursor
Turbopack
Vite
Vitest
Remix
Remote
Safe
Availability
Location
United StatesAuthorized to work in
Portfolio
portfolio-einar.vercel.appJob categories
Skills
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