Senior Frontend Engineer (React)

We are looking for a Senior Front-End Software Engineer to build and enhance web, mobile and connected TV applications used for live and on-demand streaming experiences for our international partner, just building up their team in Hungary.
The role combines hands-on development, technical leadership, mentoring and contribution to scalable front-end platforms and delivery processes. Weekly 3 days home office is provided.

Responsibilites:

• Design, build, and maintain high-quality front-end experiences across web, mobile, and connected TV platforms (tvOS, Android TV / Fire TV, Samsung Tizen, LG webOS)
• Take the lead on solution and feature design – bringing well-reasoned technical proposals and seeing them through to delivery
• Mentor mid-level and junior developers through code review, pairing, and day-to-day guidance – helping build capability across the team
• Contribute to and evolve our shared component library and design system, with a focus on consistency, accessibility, and long-term maintainability
• Set a high bar for front-end performance – profiling, measuring, and improving rendering, load times, and analytics instrumentation
• Collaborate with back-end engineers, QA, and product to define robust, scalable solutions
• Contribute to CI/CD pipelines and front-end tooling, improving build reliability and developer experience
• Stay current with the front-end ecosystem and bring emerging patterns and practice into the team

• Deep proficiency in React (minimum 6 years), including cross-platform delivery
• Strong English communication skills, both written and spoken
• Solid command of HTML and CSS/SCSS – responsive and adaptive layouts, flexbox, grid
• Proven track record shipping apps across multiple targets: web, mobile (iOS/Android) and/or connected TV
• Experience building and maintaining component libraries or design systems
• Deep understanding of front-end performance – measurement, optimization, and analytics integration
• Experience with RESTful APIs or GraphQL
• Comfortable working within CI/CD pipelines and modern front-end tooling
• Demonstrated testing approach – experience with modern front-end testing frameworks and a test-first mindset
• Clear communicator who can articulate technical decisions to peers and cross-functional stakeholders

• Experience in the streaming or media industry – VOD, live events, player integrations, or DRM
• Hands-on 10-foot development experience across Samsung Tizen, LG webOS, Apple TV, or Android TV / Fire TV
• Familiarity with client-side data event instrumentation
• Knowledge of Node.js, AWS (Lambda, S3, CloudFront), or back-end concepts
• Curiosity about the full stack and how front-end decisions interact with broader system design