Frontend Developer

Requirements

We are looking for a Front-End Developer to work on customization and extension of our EspoCRM-based system.

This is not a typical React/Vue/Angular project. You will work within an existing platform with its own frontend architecture (views, models, templates, metadata), so the ability to understand and extend existing code is critical.

Must-have

• Strong knowledge of JavaScript (ES6+)
• Solid experience with HTML5, CSS3, responsive layout
• Experience working with large existing codebases, including the ability to read, understand, and safely extend custom code
• Understanding of MVC-style or component-based frontend architecture
• Experience with dynamic UI rendering (templates, state-driven UI)
• Experience integrating frontend with REST API / AJAX / JSON
• Good debugging skills (browser dev tools, network, DOM inspection)
• Experience with Git

Nice to have

• Experience with EspoCRM
• Familiarity with Handlebars or similar templating engines
• Experience with jQuery
• Understanding of Backbone-like or custom frontend architectures
• Experience with AMD modules
• Knowledge of LESS
• Familiarity with build tools (Babel, Rollup, Grunt)
• Understanding of metadata-driven UI and dynamic form logic

Candidate profile

We are looking for a developer who is comfortable:

• working inside a custom framework instead of modern SPA frameworks
• carefully extending existing functionality without breaking it
• maintaining code quality in a large and evolving system
• balancing between speed and clean architecture

This role is best suited for someone who enjoys engineering problems, not just building UI from scratch.

Full-time schedule: Monday–Friday, 09:30–18:00 (remote work available)

Comfortable office in Kyiv (Okhtyrska St., 6a)