Senior Investment Manager

Publicis Groupe UK; City Of London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A global media company in London is seeking a Senior Investment Manager to manage accountability programmes for key global clients. You will lead operational delivery and strategic insights, ensuring media cost and ROI commitments are met. The ideal candidate has experience in media buying and auditing, excellent analytical skills, and leadership experience. Competitive benefits include hybrid working and unique wellness programs.

Benefits

Pension

Private Medical

Income Protection Plan

Flexible working

Birthday day off

Great local discounts

Qualifications

• Strong experience in media agency buying/investment, media auditing, or media owner sales.
• Strong knowledge of media trading metrics, KPIs, and audit methodologies.
• Excellent analytical, numerical, and problem-solving skills.
• Experience managing junior team members.
• Confident communicator working with senior stakeholders.
• Proactive and highly organized.
• Ability to process large datasets and distill them into actionable insights.

Responsibilities

• Lead day-to-day management of accountability programmes.
• Prepare and present reports translating complex media data into insights.
• Build relationships with clients and local teams.
• Line-manage a Manager and (Senior) Executive.
• Support new business activities including proposals and benchmarking.
• Contribute to negotiation of global trading agreements.
• Optimize reporting templates for efficiency.
• Share insights across markets.

Skills

Media agency buying/investment

Media auditing

Analytical skills

Numerical skills

Problem-solving

Communication

Team management

Data analysis

Job description

BRAND: Publicis Media
Job Function: Media Trading
Location: London, United Kingdom
Experience Level: Intermediate
Workplace Type: Hybrid

Company description

Overview

Publicis Groupe is one of the world's largest communications holding companies, present in over 110 countries and employing about 100,000 professionals. The Groupe is positioned at every step of the value chain, from consulting to execution, combining marketing transformation and digital business transformation.

Helping our clients unlock growth in the platform world

Our clients compete in the platform world, a horizontal marketplace between creators and consumers, between speakers and listeners, between buyers and sellers. To thrive in the platform world, companies must continue to innovate their products and business models. Four imperatives (1. Real Identity, 2. Dynamic, Diverse and Disruptive Creativity 3., Smart Media and 4. Direct Relationships) via our suite of world‑class agencies, are necessary for modern brands to win in the platform world. At Publicis Groupe, we've invested in capabilities across these four imperatives our clients need to unlock growth. As the only one who can architect, build and orchestrate end to end solutions, not only do we have a proven record of building bespoke models for clients and leading expertise across all major industry categories, we are able to offer our talents more opportunities to grow and benefit from a richer learning experience. We call this Power of One. Powered by a 100,000‑strong network via Marcel, our AI‑based platform, we are also able to provide our clients and talents instant access to resource, knowledge for any need, any time, in any market.

The spirit of Viva La Difference

Viva La Difference is deeply rooted in everything we do. It has always been in our DNA. From the birth of Publicis, 94 years ago, when Marcel Bleustein‑Blanchet, our founder, invented French advertising. Viva La Difference expresses how we value and respect each individual and recognize what makes us distinctive. This is the charge that inspires our teams to celebrate the differences in identity, background, culture, and experience of all of us. It is how we behave with each other and our clients, and it is deeply rooted throughout our work, to elevate and bring to life our differences throughout the platform world.

About the Team

The Global Investment & Accountability (I&A) team ensures Publicis delivers measurable value to its global clients. We manage media productivity commitments across all media types - TV, Radio, Print, Out-of-Home, Digital Display & Video, Social, and Cinema.

Working globally, the I&A team collaborates with Publicis offices worldwide, client procurement teams, and third‑party media auditors (e.g., Ebiquity, MediaSense, ECI, Cortex, IDComms) to ensure campaigns meet contractual cost, quality, and ROI commitments. This high‑visibility team combines media investment, auditing, reporting, and strategy to deliver commercial impact.

Responsibilities

As a Senior Investment Manager, you will take ownership of accountability programmes for key global clients while supporting new business initiatives. This role blends operational delivery, strategic insight, and leadership:

• Lead day-to-day management of accountability programmes, ensuring media cost, quality, and ROI commitments are met.
• Prepare and present reports and bespoke analyses that translate complex media data into clear insights and recommendations.
• Build strong relationships with clients, local PMX teams, global account teams, and auditors, providing guidance and support on best practices.
• Line-manage a Manager and (Senior) Executive, fostering development, performance, and collaboration.
• Support new business activities, including pricing exercises, proposals, RFIs/RFPs, and benchmarking.
• Contribute to the negotiation and management of global trading agreements.
• Optimize reporting templates, tools, and processes, driving efficiency and continuous improvement.
• Share insights, learning, and best practices across markets, contributing to a strong, collaborative global trading community.
• Take ownership of projects and workstreams, leading initiatives that improve processes, tools, and delivery standards.

Qualifications

• Strong experience in media agency buying/investment, media auditing, or media owner sales.
• Strong knowledge of media trading metrics, KPIs, and audit methodologies.
• Excellent analytical, numerical, and problem‑solving skills.
• Experience managing 1-2 junior team members.
• Confident communicator who can work effectively with senior stakeholders and cross-functional teams.
• Proactive, solutions-focused, and highly organized.
• Ability to process large datasets and distill them into actionable insights.

Additional information

Benefits

In the UK, alongside the core benefits such as Pension, Life Assurance, Private Medical, and Income Protection Plan, we also offer:

• WORK YOUR WORLD opportunity to work anywhere in the world, where there is a Publicis office, for up to 6 weeks a year.
• REFLECTION DAYS - Two leave to step away from your usual day-to-day work and create time to focus on your well‑being and self‑care.
• HELP@HAND BENEFITS 24/7 helpline to support you on a personal and professional level. Access to remote GPs, mental health support and CBT. Wellbeing content and lifestyle coaching.
• FAMILY FRIENDLY POLICIES We provide 26 weeks of full pay for the following family milestones: Maternity. Adoption, Surrogacy and Shared Parental Leave.
• FLEXIBLE WORKING, BANK HOLIDAY SWAP & BIRTHDAY DAY OFF You are entitled to an additional day off for your birthday, from your first day of employment.
• GREAT LOCAL DISCOUNTS This includes membership discounts with Soho Friends, local restaurants and retailers in Westfield White City and Television Centre.

Publicis Groupe operates a hybrid working pattern with full time employees being office-based three days during the working week.

We are supportive of all candidates and are committed to providing a fair assessment process. If you have any circumstances (such as neurodiversity, physical or mental impairments or a medical condition) that may affect your assessment, please inform your Talent Acquisition Partner. We will discuss possible adjustments to ensure fairness. Rest assured, disclosing this information will not impact your treatment in our process.

Please make sure you check out the Publicis Career Page which showcases our Inclusive Benefits and our EAG's (Employee Action Groups).