Position: Senior Front-End Engineer (React+Typescript+DDD)
Company: SimplBit
Category: JavaScript
Experience required: 3y
English level: intermediate

**As a Senior Front-End Engineer you'll:**
* Develop user-facing features for web application;
* Ensure the technical feasibility of UI/UX designs;
* Optimize application for maximum speed and scalability;
* Collaborate with other team members and stakeholders;
* Implement code according to best practices;
* Build reusable code and libraries for future use.

**Some things we consider critical to succeeding in this role:**
* Understanding of React+Typescript+DDD (Domain-driven design) is a MUST;
* 4+ years of experience as a Front-End Engineer;
* Experience with React.js 2+ years;
* Experience with modern JS frameworks;
* Proficiency with modern JS features as Async Functions & Promises;
* Experience in using Websockets, Local Storage
* Experience with XML HTTP requests and front-end — backend communication through JSON APIs;
* Understanding of web application architecture and basic design patterns;
* Experience of carrying out web apps to production;
* Hands-on experience in building Responsive Web Apps;
* Understanding of app/browser performance and techniques and cross-browser/platform issues;
* Understanding of the Shadow DOM and experience with CSS preprocessors like Sass;
* Knowledge and hands-on experience with VCS (GIT);
* Basic knowledge of the Web App Security: XSS, CSRF, etc.

**Will be a great plus:**
* SOLID Principles;
* Basic knowledge of Sketch, Photoshop;
* Understanding of the Backend architecture;
* Experience with Web Crypto API, Service Worker API, Progressive Web Apps;
* Ability to plan app architecture and development stages.

**Why SimplBit:**
* Challenging tasks and creativity in finding resolutions.
* Ability to implement and test your own hypotheses.
* Flexible working hours and top equipment.
* Health insurance.
* Education and professional events compensations.
* The pace and atmosphere of the start up.
* Comfortable office in the heart of Kyiv (Zoloti Vorota/ Teatralna).