Senior Frontend Developer - Freelance

Senior Frontend Developer (Contractor/Freelance) - Hungary

• Duration: 3 months plus
• Rate: 120,000 - 160,000 per day HUF
• Start Date: ASAP
• Location: Must be based in Hungary, Remote Working

About the Role:

As a Senior Frontend Developer (Contractor/Freelancer) at Beyond Sports , you will play a key role in delivering high-quality, performant, and engaging frontend solutions to sports fans and partners worldwide. Working alongside a cross-functional team, you’ll be responsible for building and maintaining responsive web applications using modern frontend technologies and best practices.

This role is delivery-focused, suited for a self-driven contractor who thrives on writing clean, scalable code, solving complex problems, and delivering against clearly defined requirements. You’ll work closely with designers, backend developers, and project managers to ensure that deliverables meet expectations and deadlines.

Key Responsibilities

Translate project requirements and designs into functional, maintainable frontend code

Scope, estimate, and manage your own tasks to meet agreed timelines

Integrate with backend APIs and third-party services

Produce high-quality, reusable code with attention to maintainability and performance

Ensure cross-browser and cross-device compatibility through rigorous testing and debugging

Implement responsive UI/UX using HTML, CSS/SASS, and JavaScript (vanilla)

Use Gulp workflows and Git version control effectively within a collaborative codebase

Collaborate with the wider delivery team to ensure alignment on goals and timelines

Proactively identify and resolve frontend issues or technical blockers

Document frontend solutions to support ongoing maintenance and handovers

Required Skills & Experience

Expert-level knowledge of:

HTML, CSS, and responsive design principles

JavaScript (vanilla)

React

SASS development

JSON and RESTful APIs

Gulp workflows

Git and version control best practices

Cross-browser/device testing and debugging

Working with design files and translating them into code (e.g. Figma, Sketch)

Frontend performance tuning and optimization

Writing clean, readable documentation for frontend solutions

Comfortable with:

ES6/ES7 features

Integrating third-party tools and SDKs (e.g. video providers)

NPM and Bower for dependency management

Web accessibility (a11y) best practices

SEO best practices for frontend builds

JIRA or similar tools for task tracking

Nice to Have

Familiarity with CI/CD processes for frontend deployment

Understanding of frontend architecture patterns and modular development

Please apply and a member of our TA team will be in touch