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Salary
≈ $56k – $110k per year (Estimated)
Location
Hybrid (London, United Kingdom)
Seniority
Senior · 1+ year exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Sep 10, 2026. Havas scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Havas is a global advertising and communications group headquartered in Puteaux, near Paris, France, that offers creative, media, health communications, public relations, customer experience and business consulting services to brands. Founded in 1835 by Charles-Louis Havas as a news agency, it was spun off from Vivendi and listed on Euronext Amsterdam in 2024, and employs about 23,000 people through agencies such as Havas Media Network, BETC and Arnold. It hires media planners and consultants, account and project managers, data analysts, finance controllers, talent sourcers and product owners, plus software engineers at Ekino.

Agency :

Havas Market

Job Description :

About Us:

We are Havas Market, part of the Havas Media Group. Our mission is to create meaningful connections between people and brands to drive business success with one vision, one voice and one P&L. Havas is the only truly integrated marketing and communications company in the UK.

Havas Market is Havas Media Group’s specialist ecommerce and performance marketing agency. Our 150-strong team brings together data, performance marketing, connected commerceand retail expertiseto help brands drive measurable commercial growth.

Our Limitless Performance proposition connects brand, performance, commerceand loyalty to create more joined-up customer experiences and move people closer to purchase. We work across a range of channels, including:

  • Direct-to-consumer (D2C)media

  • Marketplaces

  • Retail media

  • Social commerce

  • Loyalty & Partnerships

Our offer spans managed services, consultancy, technologyand tools, supporting clients across multiple markets and categories.

As part of Havas Group, we also benefit from access to a broad range of complementary capabilities, including media, data and technology, digital, social, CRM, UX, creative, research, public relations, design and more - all under one roof at our London Kings' Cross office.

The Role

This role sits within the Havas Market Ecommerce Client Team.

As a Senior Ecommerce Executive, you will support the Ecommerce Manager in delivering high-quality client service across a portfolio of connected commerce clients. You will contribute to campaign coordination, performance analysis, reporting, project managementand client communications, helping to ensure smooth day-to-day delivery across your accounts.

Our clients operateacross a range of channels, including:

  • Brand: OOH, BVOD and programmatic

  • Performance: PPC and paid social

  • Commerce: Amazon retail, Amazon Ads, retail mediaand TikTok Shop

This is an excellent opportunity for an ambitious ecommerce or performance marketing executive who wants to develop broader experience across the connected commerce environment. You are not expected to have in-depth knowledge of every channel. However, you should have a strong appetite to learn and an interest in understanding how different channels work together to deliver against brand and commercial objectivesfor clients.

The role would suit someone with one to two years’ agency experience in ecommerce and/or performance marketing who is ready to take the next step in a client-facing role.This role is hybrid, with 3-days a week (Usually Tues, Weds & Thurs) at our central Kings Cross office, and 2 days remote.

Key Responsibilities

Client and campaign delivery

  • Support the Ecommerce Manager and Director in developing ecommerce strategies for clients.

  • Contribute to campaign planning, annual planningand the development of ad hoc briefs.

  • Build an understanding of clients’ businesses, customersand commercial objectives.

  • Help ensure recommendations are practical, insight-led and aligned with clients’ short- and long-term goals.

  • Support the coordination of multi-channel campaigns, working closely with internal activation teams.

  • Schedule and coordinate internal stand-ups, track actionsand help ensure campaigns remain on schedule and on budget.

  • Monitor campaign pacing and performance, escalating issues and performance challenges to the Ecommerce Manager where appropriate.

  • Support the development of post-campaign analyses (PCAs), ensuring they containclear, actionable insights.

  • Support the implementation of client innovation and testing roadmaps.

Planning and performance

  • Work with the Ecommerce Manager and activation teams to develop media plans, forecastsand performance benchmarks.

  • Contribute to performance analysis across ecommerce, retail mediaand wider paid media channels.

  • Identifyopportunities to improve campaign performance and client outcomes.

  • Help anticipatepotential delivery issues and recommend ways to mitigate them.

Client management

  • Own agreed client workstreams and support the day-to-day management of client accounts.

  • Lead weekly client meetings with confidence; crafting clear agenda and performance inisghts

  • Act as a reliable point of contact for campaign updates, actionsand operational queries.

  • Build strongworking relationships with clients and internal stakeholders.

  • Communicate clearly, proactivelyand professionally across all projects.

Reporting and tools

  • Own the preparation of weekly and monthly performance reports.

  • Translate data into clear, actionable insights and challenge assumptions where appropriate.

  • Support the post-campaign analysis process by briefing internal teams, collating findingsand preparing presentation materials.

  • Become proficient in relevant ecommerce, retail mediaand performance marketing tools, including proprietary Havas Market technology.

Digital shelf optimisation

  • Optimise product content and ecommerce operations across relevant commerce platforms.

  • Help improve clients’ retail presence, discoverabilityand commercial performance.

  • Monitor issues relating to content, availability, retailer complianceand platform execution, escalating where required.

Skills and Experience

  • Ideally one to two years’ experience in an agency, brand, retaileror consultancy environment, ideally within ecommerce, retail mediaor performance marketing.

  • An analytical mindset and strong Excel/spreadsheet skills.

  • Experience with campaign coordination, reportingor performance analysis.

  • Working knowledge of Amazon Ads and Amazon retail platforms, including Vendor Central and/or Seller Central.

  • Understanding of retail media and marketplace activity.

  • Experience or exposure to PPC and paid social activation.

  • Strong organisational and project management skills.

  • Excellent attention to detail and the ability to manage multiple priorities.

  • The ability to work effectively in a fast-paced, entrepreneurial agency environment.

  • A collaborative, proactive and positive approach.

  • A genuine interest in learning and developing across connected commerce.

Desirable Experience

  • Experience with both Amazon Vendor Central and Seller Central.

  • Experience with TikTok Shop or social commerce.

  • Familiarity with digital shelf metrics and optimisation.

  • Experience with retail media networks or marketplace platforms beyond Amazon.

  • Knowledge of ecommerce reporting or activation tools.

  • Experience supporting new business, pitchor planning activity.

Contract Type :

Permanent

Here at Havas across the group we pride ourselves on being committed to offering equal opportunities to all potential employees and have zero tolerance for discrimination. We are an equal opportunity employer and welcome applicants irrespective of age, sex, race, ethnicity, disability and other factors that have no bearing on an individual’s ability to perform their job.

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