Goodnotes Tech Stack

AI-powered note-taking app with handwriting recognition and cross-platform sync

Software Development London 201–500 employees Founded 2011 Privately Held

Goodnotes is a 24-million-user note-taking platform built on a sophisticated ML stack (PyTorch, TensorFlow, JAX) and distributed infrastructure (Kubernetes, AWS EKS, CockroachDB). The tech roadmap reveals a hard pivot toward cross-platform expansion—Swift/Android adoption and WebAssembly work are active—while the engineering-heavy hiring mix (26 of 42 roles) and active projects around handwriting models and sync engines signal they're engineering their way out of scaling constraints (canvas performance, sync reliability, incident prevention) rather than optimizing existing architecture.

Tech Stack 80 technologies

Core StackPython PyTorch TensorFlow C++ Rust Swift SwiftUI React TypeScript Kotlin Redux Datadog Terraform GitHub Actions ArgoCD MongoDB CockroachDB AWS Kubernetes CloudFront JAX Objective-C WebAssembly iOS UIKit AppKit AWS EKS Atlantis Aurora OpenSearch+50 more

AdoptingSwift WebAssembly Android

What Goodnotes Is Building

◆Challenges

Implementing ai across multiple platforms
Performance optimisation
Supporting millions of users
Scaling the canvas experience
Scaling user acquisition efficiently
Expanding into b2b
Improving sync reliability
Scaling with resilience
Uncovering weaknesses before incidents
Maintaining high uptime while controlling costs

▲Active Projects

Cross-platform expansion of core ios app
Wasm & android support for swift
Implementing new swift features
Create decoupled interactive web/mobile uis
Handwriting recognition model development
Sync engine improvement
Rapidly build prototypes from mockups
Bring core ios app to cross platforms
Core canvas and document editing tools
Prototype development from mockups

Hiring Activity

Decelerating40 roles · 10 in 30d

Department

Engineering

Marketing

Product

Support

Research

Seniority

Senior

Mid

Manager

Principal

Lead

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About Goodnotes

Goodnotes is a note-taking application that combines handwriting input with AI-driven features like intelligent transcription and search. Founded in 2011 and headquartered in London, the company operates at significant scale: 24 million users, primarily across iOS through native mobile interfaces (Swift, UIKit, SwiftUI). The product handles real-time synchronization and canvas rendering at volume, supported by cloud infrastructure (AWS, Kubernetes, MongoDB/CockroachDB). Current expansion focuses on Android and web platforms via WebAssembly, moving beyond single-platform dominance into B2B motion while managing the operational complexity of supporting millions of concurrent users.

HeadquartersLondon

Company Size201–500 employees

Founded2011

Hiring MarketsUnited Kingdom, Belgium, Serbia, Singapore, Czechia, Bosnia and Herzegovina, Portugal, Romania

Frequently Asked Questions

What is Goodnotes' tech stack?

ML frameworks (PyTorch, TensorFlow, JAX), systems languages (C++, Rust, Swift), web technologies (React, TypeScript, WebAssembly), cloud infrastructure (AWS EKS, Kubernetes, CockroachDB, Aurora), and mobile platforms (iOS, Android via Kotlin).

Where does Goodnotes hire engineers?

Engineering roles (26 active) span UK, Belgium, Serbia, Singapore, Czechia, Bosnia and Herzegovina, Portugal, Romania, Poland, India, Hungary, Spain, and Vietnam.

Is Goodnotes building Android support?

Yes. Android and WebAssembly are active adoption areas, with projects underway to expand the core iOS app to cross-platform via Swift and web technologies.