Senior Frontend Developer

Quick Facts

• Role: Senior Frontend Developer (B2B contract)

Description

You’ll develop clean, high-quality frontend code in line with best practices, create and maintain technical documentation, and write unit tests to ensure application stability and quality. You’ll collaborate with Business Analysts, IT Architects, and the business client, and provide technical mentoring to less experienced developers.

Responsibilities

• Create readable, high-quality frontend code aligned with good programming practices

• Prepare and maintain technical documentation supporting solution development

• Write and run unit tests to maintain stability and quality

• Collaborate with Business Analysts, IT Architects, and the business client at each stage

• Provide technical and substantive support via mentoring and knowledge sharing

Requirements

• Experience building frontend applications using Angular or React

• Strong JavaScript (ES6) skills and working with JSON

• Proficiency in HTML5 and CSS3; experience with LESS or SASS

• Experience with Responsive Web Design (RWD) and Mobile First

• Ability to optimize web applications for mobile devices and browsers (Chrome, Safari, Firefox, IE11+)

• Experience integrating with backend via RESTful API

• Strong focus on UX/UI, usability, and accessibility

• Knowledge of Rich Internet Applications (RIA) concepts

• Use of good programming practices and Clean Code

• Analytical and creative problem-solving skills

• Ability to work independently with good organization and engagement

• Comfortable in teamwork and clear, transparent communication

• Experience with JIRA and Confluence

• Solid frontend technology knowledge enabling independent application development

• Knowledge of RxJS, Node.js, and TypeScript is a plus

Benefits

• B2B contract

• Access to GIGLIKE benefits platform

• Work model: Hybrid (1–3 days/week in Warsaw) or remote

Additional benefits via GIGLIKE

• Income loss insurance

• Hospital insurance

• Private medical care

• Sports packages

• Accounting services