Senior Front-End Developer

This is a full-time role based out of our office in Barcelona. We can only consider applicants who are able to work 3 days per week from the office.

Role

FX Digital is a specialist front-end Connected TV agency, providing a wide range of services, including Product Strategy, Design, Engineering, and Testing. We partner with global streaming brands such as Discovery+, BritBox, ATP Media, ITV, and Dyn. As a Senior Front-End Developer at FX Digital, you take a leading role in shaping the technical direction of our Connected TV projects. With your deep experience in JavaScript and web technologies, you will architect technical solutions, mentor team members, and provide strategic advice on complex projects. Collaborating with the Heads of Engineering and Technology, you will also play a key role in client interactions, proposing solutions to meet business needs.

Key Responsibilities

• Work closely with the Heads of Engineering and Technology to propose and implement technical solutions for CTV applications.

• Provide technical guidance and inspiration to the development team, ensuring high coding standards.

• Lead code reviews, offering feedback to improve code quality and ensuring adherence to best practices.

• Act as a technical advisor in client meetings, presenting solutions and advising on architectural decisions.

• Collaborate with sales and marketing teams to present technical solutions to prospective clients.

• Stay current with industry developments by attending relevant events and training to maintain cutting-edge skills.

• Contribute to internal processes by recommending tools and technologies that improve development efficiency and quality.

Requirements

• 5+ years of professional experience in front-end development, particularly with complex web applications.

• Expert-level JavaScript skills, including familiarity with TypeScript.

• Deep understanding of Git version control and workflows.

• Extensive experience with RESTful APIs, unit testing frameworks (e.g., Jest), and debugging tools.

• Solid grasp of web architecture, including APIs, transfer protocols, and browser internals.

• Proficiency with CLI tools (e.g., yarn, npm) and some familiarity with CI/CD pipelines.

• Strong leadership, time-management, and communication skills.

Desirable Skills

• Bachelor’s degree in Computer Science, Mathematics, or a related field (or equivalent experience).

• Experience with video/audio player implementations (e.g., hls.js) and familiarity with DRM and subtitles.

• Experience with WebGL, RxJS, and stream-based programming.

Why work at FX?

• Take part in regular company-wide and team-specific socials (both in-person and remote).

• We appreciate that the world has changed and so we offer flexible working, working from home and a flexi start time between 9am and 10am.

• To ensure that our remote workers don’t miss out on the office experience, we have invested in technology that allows us to run company events in a hybrid way.

• Every month you have the option of a one-on-one Sanctus mental health coaching session, a great opportunity to get quality mental health support at work.

• To recognise everyone’s incredible contribution to the success of the business, we offer an annual profit share equally distributed across all roles and departments.

• We take great pride in our culture of acceptance, diversity and inclusion.

• Complete regular surveys to provide anonymous feedback on the business, leadership team and your role to ensure that we are doing everything we can to keep improving and making FX a great place to work.

• Join us at our monthly Show and Tell, where team members update us on what they’ve been working on.

• Get nominated for the monthly FX Factor by your peers and get recognised for your contribution to the business.

• Get a chance to earn a £10 voucher for high project NPS scores.

• We are invested in your growth and so we run regular, quarterly appraisals, to ensure you are receiving constant feedback and working towards goals for growth.

• We support our team to get involved in conferences, events and trade shows at home and abroad.

• Personal development is hugely important and so we offer weekly training time to upskill and continue your learning.

• Work with epic and prestigious global brands in the media, sport and entertainment space, from Discovery to BBC and ATP Media.

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“If you’re passionate about this role and believe you can add value, we encourage you to apply, even if your background doesn’t match the job description exactly.”