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Client Services · London · Hybrid

Technical Account Manager

Self Service Technical Account Manager - Client Services (UK & INTL)

We are seeking a technically strong and client-focused Technical Account Manager to support advertisers and agencies using our platform directly across the UK and International markets. In this role, you’ll be the go-to expert for day-to-day campaign operations and platform support, working closely with the Self-Serve Lead to drive adoption, troubleshoot issues, and deliver outstanding client outcomes through our DSP.

You’ll own a portfolio of self-serve clients and work hands-on within the platform daily, providing technical guidance, optimisation support, and consultative partnership. As you develop in the role, there is opportunity to informally support and mentor newer team members.

Key responsibilities

  • Serve as the primary day-to-day point of contact for a portfolio of self-serve clients across the UK and international markets.

  • Provide technical support and consultative guidance to clients on DSP campaign setup, pacing, targeting, troubleshooting, and reporting.

  • Onboard new self-serve clients onto the Blis DSP, delivering enablement sessions and training to ensure platform confidence from day one.

  • Monitor campaign performance directly within Blis DSP and proactively surface insights, flag issues, and recommend optimisations.

  • Contribute to post-campaign analyses (PCAs) and Quarterly Business Reviews (QBRs) with clients, in partnership with the Self-Serve Lead.

  • Partner with Sales, Product, Ops, and Insights teams to ensure smooth campaign activation, delivery, and measurement.

  • Act as the voice of the client internally — identifying platform friction points and feeding back to Product.

  • Identify opportunities within your portfolio for deeper platform adoption, new feature usage, or channel expansion (CTV, Audio, DOOH).

  • Support pixel implementation, tagging, and basic ad tech troubleshooting across client setups.

  • Over time, informally support the onboarding and development of more junior team members.

  • Maintain a strong understanding of programmatic trends including cookieless solutions, identity, and channel innovation.

Skills and requirements

  • 2–4 years’ experience in programmatic advertising, preferably in a client-facing or campaign management role (e.g. The Trade Desk, DV360, StackAdapt, Xandr, or similar DSP).

  • Solid working knowledge of DSP campaign setup, pacing, targeting, reporting, and troubleshooting.

  • Technically adept — comfortable with pixel implementation, tagging, and diagnosing issues across ad tech stacks.

  • Highly analytical, with the ability to interpret performance data and translate it into clear, actionable recommendations for clients.

  • Excellent communication skills, with the ability to simplify the complex and support clients at varying levels of technical sophistication.

  • Detail-oriented, solutions-driven, and comfortable managing multiple accounts in a fast-moving environment.

  • Demonstrated ability to build trusted client relationships and act as a reliable partner.

Preferred:

  • Familiarity with self-serve or direct-access programmatic models.

  • Knowledge of SSP dynamics, identity solutions, and programmatic measurement best practices.

  • Exposure to omnichannel formats including CTV, Audio, and DOOH.

  • Experience with or curiosity about cookieless and privacy-first advertising approaches.

  • Passion for client education and platform enablement.

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.

Department
Client Services
Role
Technical Account Manager
Locations
London
Remote status
Hybrid
Client Services · London · Hybrid

Technical Account Manager

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