Hybrid Frontend Software Developer – WYSIWYG, Editor and Authoring Tools

at Avvoka

• Job title: Frontend Software Developer – WYSIWYG, Editor and Authoring Tools
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: JavaScript, TypeScript
• Location requirements: Hybrid, Prague, Czech

About the role

• Frontend Software Developer for in-browser document editing tools at Avvoka. Responsible for performance, correctness, and creating delightful experiences for users of legal documents.

Responsibilities

• Contribute to and evolve the Editor Lead feature and architecture work for the in-browser document editor and authoring surfaces.
• Build high-performance, low-latency features that handle complex data models, dynamic content and large documents.
• Implement, extend and maintain Quill modules and integrate with Quill’s event API.
• Write and maintain robust, testable code.
• Deliver clean, maintainable TypeScript/JavaScript with strong type safety and automated tests.
• Use modern frameworks and tools to improve performance, stability, and developer ergonomics.
• Ensure cross-browser compatibility and responsive behaviour across devices.
• Implement collaboration features (presence, cursors, comments) with a focus on consistency and minimal latency.
• Work with backend engineers on OT/CRDT integration, conflict resolution, and data reconciliation strategies.
• Partner with designers, product managers and legal engineers to translate UX needs into technical solutions.
• Provide constructive code reviews and take part in design and architecture discussions focusing on usability, accessibility and performance.
• Improve internal tools, build reliable CI/CD for frontend releases, and ship observability for editor performance.

Requirements

• 5+ years of professional experience in JavaScript and TypeScript
• Hands-on experience building/maintaining complex web apps — ideally editor/authoring tools or design surfaces.
• Practical experience with Quill’s module system and Quill’s event API (essential).
• Deep understanding of browser rendering, virtualisation techniques, memory management and performance optimisation.
• Prior experience with real-time collaboration features (OT/CRDT, WebSockets, presence).
• Solid testing strategies and experience with performance monitoring in production.

Benefits

• Remote First hybrid working - Choose your days in office based on operational requirements
• Annual learning and development budget
• Home office IT allowance
• Right to request flexible working arrangements
• A collaborative, transparent company culture with real opportunities for growth