Contract - Head Of Biddable - Inside IR35

We're working on behalf of a brilliant agency to help find their next Head of Biddable - a key leadership hire to guide and inspire their platform and performance team during a pivotal period of change.

Head of Biddable - 3 Month Contract / Temp-to-Perm
Location: Hybrid (London-based office)
Start: Mid to Late August
IR35: Inside IR35 if contracting

Introduction
Our client is a creatively-led, digitally progressive agency with an impressive track record of delivering standout brand work across paid media channels. With an upcoming team shift, they're seeking senior biddable talent to bridge the gap and shape the future of their platform and walled garden strategy. This role is essential to maintaining delivery while laying the foundation for longer-term capability growth.

The Role
This is more than just a biddable lead - it's a hybrid strategic-creative role for someone who sees platforms like TikTok, YouTube, Meta, Amazon and Google not just as media spaces, but as environments for culture-making. You'll lead a multidisciplinary team, push creative and performance innovation, and help redefine how this agency builds brands through paid social, search, display, and emerging channels like generative AI.

Responsibilities include:

• Leading the Platform & Walled Gardens team across paid search, social, display and commerce

• Managing two Biddable Directors and contributing to agency leadership

• Driving both creative excellence and performance outcomes in paid environments

• Partnering closely with strategy, creative and client teams to shape integrated campaigns

• Championing innovation and experimentation within emerging platform capabilities

• Presenting to senior clients and guiding campaign strategy at the highest level

You - Skills & Experience:

• Strong leadership experience in biddable media, ideally within an agency setting

• Hands-on knowledge of paid social, search, display, and commerce platforms

• Proven track record in both performance marketing and creative execution

• Passion for platform-specific storytelling and audience-first thinking

• Able to balance technical know-how with creative collaboration

• Confident client communicator and cross-functional team leader

Contract Details:

• 3-month initial contract, with option to go perm if a great fit

• Open to day rate (inside IR35) or pro rata salary - happy to advise on options

• 2-stage interview process:

  • Stage 1: Video interview with Digital Director

  • Stage 2: Task presentation to senior leadership

If you're a platform-native leader ready to build bold, brand-led work in digital spaces - or know someone who is - we'd love to hear from you.

Sphere Digital Recruitment is acting as an Employment Business in relation to this vacancy.