Freelance Senior Front End Developer

Hogarth is the Global Content Production Company. Part of WPP, Hogarth partners with one in every two of the world's top 100 brands including Coca-Cola, Ford, Rolex, Nestlé, Mondelez and Dyson. With a breadth of experience across an extensive range of sectors, Hogarth offers the unrivaled ability to deliver relevant, engaging, and measurable content across all channels and media - both established and emerging. The number of channels at our fingertips; the need for speed; and the drive for mass personalisation, all mean that brands need different solutions. Our global team of over 7,500 craft and technology experts brings together creative, production and innovation to help clients navigate this exciting and ever-changing world of today's content experience.

WPP is the creative transformation company. We use the power of creativity to build better futures for our people, planet, clients and communities.
Working at WPP means being part of a global network of more than 100,000 talented people dedicated to doing extraordinary work for our clients. We operate in over 100 countries, with corporate headquarters in New York, London and Singapore.
WPP is a world leader in marketing services, with deep AI, data and technology capabilities, global presence and unrivalled creative talent. Our clients include many of the biggest companies and advertisers in the world, including approximately 300 of the Fortune Global 500. Our people are the key to our success. We're committed to fostering a culture of creativity, belonging and continuous learning, attracting and developing the brightest talent, and providing exciting career opportunities that help our people grow.
Role Requirements

• In-depth knowledge of HTML, CSS/SCSS/SASS, JavaScript and other web development/production tools
• Expert in JavaScript with working experience on a team building components in React with Typescript
• Ability to independently develop JavaScript prototypes which includes research and proof of concept development
• Familiarity with
• AI-assisted developer tooling (i.e. Claude Code, Roo Code)
• Proficient working with internal or 3rd party API's
• Experience using testing frameworks i.e. Vitest, Mocha, Playwright
• Experience with package managers, i.e. NPM or Yarn
• Experience using module bundlers such as Vite
• Previous experience with HTML E-mail development
• Advanced knowledge of responsive web design
• Experience with translating comps and wireframes into flexible and usable code
• Experience implementing pixel perfect designs across a broad range of browsers and devices
• Experience using version control software(git) in multi-developer team
• Experience with developing large customer-facing websites
• Experience building tools to automate and streamline processes

QUALITIES AND CHARACTERISTICS

• 5+ years' experience working as a front-end developer
• Excellent verbal and written communication skills, ability to articulate technical concepts to clients and non-technical colleagues
• Experience with web application development
• Thrives when facing new challenges in improving client deliverables
• Relentless attention to detail
• A passion for quality, receptive to feedback, and a desire to write code that produces a bug-free user experience
• Seeks to work in a process rich, quality-focused organization

Our Hogarth Values:
Hands on
No egos here. Just a shared drive to roll up our sleeves and make great things happen. Every project--big or small, gets our full energy because we believe in doing things right. Every single time. It's how we deliver real results without cutting corners.

Honesty
We are real and authentic – with each other and in our work. Honest, direct communication builds the trust we need to collaborate, grow, and make meaningful things together. It's not always easy but it's always worth it.

Heart & Soul
We bring heart to everything we make. Passion, pride and relentless drive push us beyond "good enough" ––because we care deeply about our craft, and we're always chasing better. We love what we do, and it shows.

Happy Family
Creating a space where everyone feels valued--even when opinions differ, makes this a supportive and inclusive environment for our people. We embrace our differences, celebrate our wins together, and never lose our sense of humor.

Hungry
Curiosity keeps us hungry. We question, experiment, and always seek out what's next. We never settle, and we never stop learning.

Inclusion and Impact
WPP is an equal opportunity employer and considers applicants for all positions without discrimination or regard to particular characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.
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