Senior Frontend Software Engineer

Role

About FX Digital

FX Digital is a specialist Connected TV agency, providing a wide range of services, including Product Strategy, Design, Engineering, and Test Automation. We partner with global streaming brands such as Discovery+, BritBox, ATP Media, ITV, and Dyn.

As a Senior Software Engineer at FX Digital, you take a leading role in shaping the technical direction of our Connected TV and living room experiences.

With your extensive experience in application development and web technologies, you will lead technical solutions, mentor team members, and deliver engaging user experiences for large screen devices.

Key Responsibilities

• Engineer and develop responsive, fluid, and data driven user experiences for mobile and large screen devices
• Lead technical solutions for Connected TV, mobile and interactivity across smart devices
• Contribute to product development initiatives that reach hundreds of thousands of users
• Collaborate with product, design, and QA to understand customer needs and structure work for efficient delivery
• Provide technical guidance and inspire the development team to deliver optimised, reliable, and maintainable code
• Mentor team members, supporting them to improve their craft and grow their impact
• Implement tools and processes that support the team’s continuous delivery of value to users
• Provide technical insight in customer 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

Requirements

• 5+ years of professional experience in front-end or full-stack application engineering / development
• Expert knowledge of TypeScript and the Javascript eco-system
• Extensive experience integrating with RESTful APIs, unit testing frameworks, 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

• Passion for efficient code, performance optimisation, and pushing limits of constrained devices
• Experience with video/audio player playback (e.g., hls.js), video delivery protocols, DRM
• Experience with WebGL, RxJS, and stream-based programming
• Experience in one or more native and cross-platform development environments Android/Google TV/Kotlin, or iOS/tvOS, React Native
• Bachelor’s degree in Computer Science, Mathematics, or a related field (or equivalent experience)

Why work at FX?

• To recognise everyone’s incredible contribution to the success of the business, we offer an annual profit share
• Personal development is hugely important, so we invest time for you to up-skill, learn and grow
• Personal pension with salary sacrifice, and medical insurance
• Early finish Fridays in the summer
• Flexible working - with the option to work 2 days a week from home
• We appreciate that the world has changed and so we also offer a flexi start time between 8am 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
• Take part in regular company-wide and team-specific socials (both in-person and remote)
• 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
• 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
• Work with epic and prestigious global brands in the media, sport and entertainment space, from Discovery to BBC and ATP Media

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.

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