Self Service Lead - Client Services (UK & International)

We are seeking a dynamic Client Services Lead to spearhead our Self‑Serve business unit, supporting advertisers and agencies using our platform directly across the UK and International markets. This individual will play a pivotal role in driving adoption, optimisation, and growth of programmatic revenue through our DSP, serving as both a strategic partner and technical consultant. As a team lead, you’ll manage a small, high‑performing group of client‑service specialists while also owning relationships with high‑value self‑serve clients. You’ll ensure platform adoption, campaign success, and client satisfaction through best‑in‑class support, insights, and training.

Key Responsibilities

• Lead the Client Services function for Self‑Service, acting as the go‑to expert on our DSP for internal teams and clients.
• Manage and coach a team of two direct reports, ensuring excellence in client support, campaign troubleshooting, and account growth.
• Plan strategic initiatives to achieve Self‑Serve business goals, complementing the wider UK strategy.
• Own relationships with high‑priority self‑serve clients, including enterprise agencies and direct clients.
• Provide consultative onboarding, enablement, and advanced training to empower clients to succeed on our platform.
• Monitor campaign performance directly within Blis DSP and offer proactive insights and optimisation guidance.
• Partner with Sales, Product, Ops and Insights teams to ensure smooth activation, measurement and delivery.
• Champion the voice of the client within the organisation, identifying friction points and collaborating with Product to resolve them.
• Lead Quarterly Business Reviews (QBRs), post‑campaign analysis (PCAs) and strategic planning sessions with clients.
• Identify account expansion opportunities through deeper platform adoption, new feature usage or cross‑channel strategy support.
• Maintain a strong understanding of evolving programmatic trends including cookieless solutions, identity and channel innovation (CTV, Audio, DOOH).
• Commitment to Blis' inclusion initiatives and 5‑step sustainability plan.

Skills and Requirements

• 5+ years of experience in programme‑matic advertising, preferably in a client‑facing DSP environment (e.g., The Trade Desk, StackAdapt, Xandr).
• Proven track record of supporting or managing self‑serve clients and growing programme‑matic revenue.
• Strong working knowledge of DSP campaign setup, pacing, targeting, reporting and troubleshooting.
• Demonstrated leadership ability – either in team management or project ownership.
• Highly analytical with the ability to interpret performance data and recommend strategic actions.
• Excellent communication skills with the ability to simplify the complex and educate clients at all levels.
• Detail‑oriented, solutions‑driven and thrives in a fast‑moving environment.
• Comfortable engaging with both hands‑on practitioners and senior‑level stakeholders.

Preferred

• Experience managing a pod or small team.
• Familiarity with pixel implementation, tagging and basic troubleshooting across ad‑tech stacks.
• Knowledge of SSP dynamics, identity solutions and programme‑matic measurement best practices.
• Prior experience working at or with independent DSPs or omnichannel platforms.
• Passion for client education and platform evangelism.

About Us

Blis is the only omnichannel DSP that unites telco data, real‑world movement patterns and transactions to deliver a complete view of the consumer. Powered by T‑Mobile and built for precision at scale, Blis' omnichannel platform helps marketers map the full purchase journey – from impression to transaction – and expand their audience reach, driving incremental results across every screen. Founded in the UK in 2004, Blis employs over 300 global employees across 14 offices in 11 countries.

Our Values – B.L.I.S.

• Brave – We’re leaders, not followers. An innovation and growth mindset helps us solve everyday challenges and achieve breakthroughs.
• Love our clients – We’re client‑obsessed. We do what we say and build trusted relationships with our partners for the long term.
• Inclusive – We’re one team. We’re empathetic, embrace diversity, give every voice a chance and support each other with humility and good humour.
• Solutions‑driven – We’re action‑oriented. Speed matters in business, so we are solution‑driven and action‑oriented.

If this looks like the perfect fit for you or if you just want to have a conversation, please apply and we will get back to you as quickly as possible!