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Omnicom Group

Global marketing, media, and PR network

Principal AI Solution Architect - Technology Consulting

Full-TimeUpdated on 10/23/2026
£95k - £113k
Senior, Expert
London, UK
HybridHybrid; Omnicom requires at least three office days per week, with possible additional in-office days.
ConsultingTechnology & Systems Consulting

About the job

Requirements
  • Proven experience of 8 or more years in AI, machine learning or data solution design, including significant hands-on experience delivering modern generative AI solutions.
  • Deep, applied experience leading generative AI and agentic proof of concepts and industrialising them into production, including tool use, orchestration, autonomous workflows and multi-agent workflows.
  • Demonstrable experience designing end-to-end AI architectures incorporating modern AI or agentic capability at enterprise scale.
  • Overall responsibility and accountability for programme delivery, managing cost, quality and business outcomes with minimal oversight, and effectively leading large teams across multiple workstreams.
  • Experience leading solution implementations and AI programmes for medium to large teams.
  • Experience providing architectural assurance, reviewing the work of other architects and acting as a Design Authority across complex programmes.
  • Strong understanding of core data management concepts over the full data lifecycle and of grounding AI solutions in trustworthy enterprise data.
  • Strong understanding of cloud-centric approaches to solution design and architecture.
  • Strong understanding of CI/CD, LLMOps and modern approaches to IT and infrastructure delivery.
  • In-depth knowledge of AI security, responsible AI and compliance standards.
  • Deep, hands-on experience delivering enterprise AI solutions on Azure or AWS, with relevant named capabilities such as Azure OpenAI Service, Azure AI Foundry, Azure AI Search, Azure Machine Learning, Azure AI Agent Service, Semantic Kernel, Prompt Flow, Content Safety, Amazon Bedrock, Amazon SageMaker, Amazon Q, Amazon OpenSearch and Guardrails for Amazon Bedrock.
  • Expertise in agentic frameworks and orchestration patterns such as Semantic Kernel, AutoGen, LangGraph, LangChain and CrewAI or equivalents, and emerging standards such as the Model Context Protocol.
  • Expertise in retrieval-augmented generation and retrieval patterns using vector stores and embedding models, and in evaluation and guardrail frameworks for large language model and agentic systems.
  • Certified architect in a cloud-based platform (AWS or Azure).
  • Familiarity with modern data and lakehouse ecosystems such as Microsoft Fabric, Databricks, Snowflake, Synapse and Redshift.
  • Strong leadership and programme management skills, with the confidence and direction to challenge the status quo and align delivery to expected outcomes.
  • Ability to partner with and influence C-suite stakeholders.
  • Ability to translate business objectives into pragmatic, scalable technical solutions and communicate the value and limitations of AI with credibility.
  • Ability to provide constructive technical challenge and assurance, influencing architectural decisions while maintaining strong relationships with delivery teams and stakeholders.
Responsibilities
  • Lead the design and development of robust, end-to-end AI solution architectures incorporating modern generative and agentic capabilities and supporting clients’ strategic goals.
  • Define and implement AI solution architectures for cloud-native PaaS and SaaS environments, integrating AI with enterprise data, APIs and microservices.
  • Oversee integration of machine learning, generative AI and agentic systems into enterprise environments, ensuring seamless functionality, performance and responsible operation.
  • Provide technical assurance across programmes, reviewing and challenging solution designs to ensure they meet architectural, security, scalability and delivery standards.
  • Act as a Design Authority where appropriate, providing architectural oversight and accountability across complex programmes and ensuring consistency and quality across multiple workstreams.
  • Lead high-profile generative AI and agentic proofs of concept at client sites, personally shaping and steering delivery to demonstrate the value and potential of AI-driven solutions.
  • Drive implementation and industrialisation of large language model-based and agentic solutions to enhance business processes, decision-making and customer experience, applying retrieval-augmented generation, orchestration, multi-agent workflows and tool/function calling.
  • Establish best practices for LLMOps, MLOps and AIOps, including evaluation, observability, model routing, cost and latency optimisation, and secure deployment.
  • Lead development of reusable AI accelerators, patterns and reference architectures, and champion market-leading practice across the capability.
  • Establish evaluation, guardrail and responsible AI practices to manage risks such as hallucination, bias, data leakage and prompt injection at enterprise scale.
  • Ensure AI solutions meet relevant standards and regulations for security, privacy and responsible AI, particularly in public sector and regulated environments.
  • Advise clients on AI adoption, modernisation and operating-model strategies for the sustainable, responsible scaling of AI and agentic capability.
  • Collaborate with cross-functional teams to align AI strategy with business objectives, and partner with senior client stakeholders and the C-suite to define AI roadmaps.
  • Work closely with business, engineering and policy teams to align solutions with organisational goals.
  • Drive thought leadership and innovation in Credera’s AI capability, sharing expertise with clients and audiences beyond immediate project delivery.
  • Mentor and guide teams of engineers, data scientists and architects across multiple workstreams, fostering a culture of innovation and excellence.
  • Act as a Design Authority across programme delivery where required, providing assurance and constructive challenge on designs produced by other architects and delivery teams.
Desired Qualifications
  • Experience in the architecture of advanced analytics platforms or modern data solutions, such as cloud-native data and lakehouse platforms, as a foundation for grounding enterprise AI solutions in trustworthy data.
  • Public sector experience, including government, healthcare or regulated industries.
  • AI or machine learning specialism for a cloud-based architect certification.

About the company

Omnicom Group is a global marketing and corporate communications holding company that organizes a network of agencies to offer advertising, strategic media planning and buying, digital marketing, and public relations. Its products and services are delivered through this portfolio of agency networks and specialty firms, generating revenue from project-based fees, commissions, and performance-based incentives. The company uses the Omni platform to base marketing and sales solutions on data, helping turn insights into creative campaigns and media plans. Unlike many competitors, Omnicom combines a wide international footprint with a diversified set of agencies and a centralized data-driven approach, and it expands through strategic acquisitions. Its goal is to help clients grow brands and businesses by delivering coordinated, data-informed marketing and communications across markets worldwide.

Company Size

5,001-10,000

Company Stage

IPO

Headquarters

New York City, New York

Founded

1944

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Simplify's Take

What believers are saying

  • Omnicom won Novo Nordisk's $520 million U.S. media account in August 2026.
  • Q2 2026 integrated media expanded across Adidas, IBM, Subway, American Express, Uber.
  • Management raised 2026 organic growth guidance to 4.5%-5.0% and targets $5 billion buybacks.

What critics are saying

  • Omnicom transferred 468 Omni engineers to Endava in August 2026, weakening product control.
  • Gross long-term debt hit $10.2 billion in Q2 2026, pressuring earnings through 2027.
  • PepsiCo already left; another major account loss would expose merger-driven integration fragility.

What makes Omnicom Group unique

  • Omnicom's Omni platform unifies creativity, media, commerce, and measurement across 2026 clients.
  • The IPG merger created unmatched media scale, now driving double-digit growth and cross-selling.
  • Hearts United launched in 40 markets, extending Omnicom's challenger media footprint globally.

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Benefits

  • Health Insurance
  • Mental Health Support
  • Vision Insurance
  • Dental Insurance
  • Life Insurance
  • Disability Insurance
  • Health Savings Account/Flexible Spending Account
  • Unlimited Paid Time Off
  • Paid Vacation
  • Paid Holidays
  • Parental Leave
  • Fertility Treatment Support

Growth & Insights and Company News

6 month growth

-56%

1 year growth

-56%

2 year growth

-56%
Yahoo Finance
Oct 23rd, 2026
Omnicom Q3 organic growth hits 7.2% as adjusted EPS jumps 22% to $2.73

Omnicom Group reported third-quarter 2026 core revenue of just over $6 billion, up $407 million or 7.3%. Organic growth was 7.2%, led by integrated media, which grew more than 10%. Adjusted EBITDA rose $191 million, or 21.1%, with the margin up 200 basis points to 18.2%. Adjusted diluted earnings per share climbed 22% to $2.73 from $2.24. The company is on track to deliver $900 million in cost savings from its Interpublic acquisition in 2026. Net interest expense rose to $104 million from $43 million, mainly due to debt assumed from Interpublic. Omnicom has completed $3.2 billion of its $5 billion share buyback, and expects full-year organic growth of about 5%.

RBR+TVBR
Oct 15th, 2026
FOX Advertising brings agentic linear buys for live campaigns.

FOX Advertising brings agentic linear buys for live campaigns. October 15, 2026 LONG ISLAND CITY, N.Y. - The next phase of FOX Advertising's agentic advertising platform, powered by FOX AdStudio, has ramped up, with five agency and technology partners signed on for live campaigns and commercial linear media transactions. It builds on the June announcement that the industry's "first end-to-end agentic advertising platform" had arrived, with the technology and infrastructure designed to embed agents across audience planning, media transactions and activation. Today's announcement sees FOX Advertising advancing that foundation with the partnership of WPP, Omnicom, Horizon Media, Stagwell and Simulmedia. Each are "executing agentic linear transactions for live campaigns through an evolved agentic infrastructure designed to support broader real-world execution," the Fox Corporation unit said on October 15. Specifically, it added, "The enhanced infrastructure creates a centralized and secure connection point for partners to interact with FOX AdStudio. A FOX agent routes each partner to its own dedicated, permissioned account, providing direct agent-to-agent connectivity." The platform now also incorporates an integrated governance engine that monitors agent activity throughout the workflow for compliance and adherence to established protocols. Built-in controls further advance FOX AdStudio's security-first approach. As Fox Advertising sees it, the new capabilities also enable "a more intelligent linear transaction. When requested inventory is unavailable, the FOX agent can recommend alternative inventory based on the advertiser's target audience rather than simply removing unavailable inventory from the order. This lays the foundation for more guided agentic transactions over time, with strong guardrails and human oversight remaining essential throughout the process." FOX Advertising and agency teams maintain control over key decisions. "From the beginning, our vision for agentic advertising has been to connect the campaign lifecycle and create a more seamless and effective experience for advertisers," said Jeff Collins, President of FOX Advertising, Marketing and Brand Partnerships. "In June, we demonstrated that we had built the technology and infrastructure to make end-to-end agentic advertising possible. Now, together with our partners, we're putting those capabilities to work on live campaigns - moving agentic advertising from capability to real-world execution while maintaining the governance and human oversight essential to doing it responsibly."

Yahoo Finance
Oct 14th, 2026
AppLovin vs Omnicom: 53% revenue growth and 77% margin against a raised forecast

Omnicom and AppLovin take different routes to advertising spend. Omnicom sells its agencies' work across media, advertising, and public relations, while AppLovin runs an ad platform built on its own models, mostly for games. Over the past year, AppLovin stock fell 52%, while Omnicom returned 6.9%, even though AppLovin grew revenue faster. AppLovin's second-quarter revenue rose 53%, but its main profit measure came in just below its forecast range. Omnicom raised its 2026 organic growth forecast, with second-quarter organic growth at 6.1%. AppLovin trades at 20.7 times trailing earnings, against 56.3 times for Omnicom. Its operating margin is 77%, versus 5.3%. Omnicom's debt equals 52% of its market value, against 3.8% for AppLovin. AppLovin reports on November 4, 2026.

Media Play News
Oct 7th, 2026
Vizio Ups WatchFree+ original content led by 'Jingle Bells Wedding Bells'

Vizio Ups WatchFree+ original content led by 'Jingle Bells Wedding Bells' October 7, 2026 Walmart-owned consumer electronics brand Vizio Oct. 7 unveiled a new slate of entertainment offerings, including a major expansion of premium programming partnerships, creator-led channels and original series, plus original feature-length holiday movie, Jingle Bells Wedding Bells, starring Rachel Bilson and Scott Foley, and produced by ITV America Nashville and Happy Accidents. In the first half of 2026, Vizio OS became the top-selling smart TV operating system in the U.S., now reaching 32 million yearly active devices, up 20% year-over-year, according to the Irvine, CA-based company. Engagement with Vizio's free ad-supported, live and on-demand streaming service, WatchFree+, is also accelerating, with viewing hours up 58% year-over-year. The platform now offers more than 45,000 movies and shows, and more than 400 live and local channels. With expanded relationships with MGM, NBCUniversal, Disney, A&E and A24, Vizio will expand programming this fall to include titles such as "The Good Doctor," "Chicago Fire," "Law & Order," "Property Brothers," and "Little House on the Prairie," among others. At today's Vizio 7th Advertising Week Breakfast Showcase, representatives from Omnicom, Walmart Connect and Vizio will share how the content and commerce partnership behind the film is coming to life across screens and in-store. "Where people spend their time watching entertainment matters, and we want GEICO to be part of those moments," said Arianna Orpello, GEICO's chief marketing officer. "As viewing habits continue to evolve, partnerships like this give us new ways to connect with audiences through experiences they genuinely enjoy. That's why we're proud to be the presenting sponsor of Jingle Bells Wedding Bells and to be part of a holiday viewing experience that brings people together." WatchFree+ is also expandong to feature 40 creator-led channels. Spanning comedy, food, gaming, family, lifestyle, sports and travel, the free ad-supported lineup includes MrBeast, Celine Dept, Hot Ones, The Royalty Family, Ben Azelart, Ryan Trahan, Nick DiGiovanni, Preston Playz, Rebecca Zamolo, Sam and Colby, and Uncle Roger, among others. New creator-led series, "Holiday Chocolate Workshop," features viral chocolatier Amaury Guichon and his team of expert chocolatiers as they craft ambitious, larger-than-life holiday masterpieces for a season-ending reveal. The series blends creator-led storytelling with brand opportunities across streaming and social experiences. * Vizio Unveils WatchFree+ Spring Content Showcase Vizio's ad-supported streaming service WatchFree+ has unveiled a spring content showcase that includes "Drag Race Down Under," "Project Runway, "Family Feud" and "Kevin Hart's Cold as Balls," among others. Documentaries include Samuel L Jackson: Did I Stutter? and Prince Harry: Being... * Vizio Ups Fall WatchFree+ Streaming Content Slate Vizio Oct. 12 announced it has added more than 70 new titles to its ad-supported WatchFree+ streaming platform. New documentaries include Ben & Jen: Never Say Never; Tim McGraw & Faith Hill: Country Lovin; and just released this year, Weird Al:... * Vizio WatchFree+ Streaming Channel Debuts Access to Select Peacock Content Previews VIzio June 14 unveiled a "Peacock Preview" channel offering episodes of select titles from NBCUniversal's Peacock streaming service on Vizio's ad-supported streaming app, WatchFree+. For a three-week period, Vizio television owners viewers can preview more than 16 Peacock dramas and... * Vizio Unveils 'WatchFree+' Fall AVOD/FAST Streaming Content Lineup Consumer electronics manufacturer Vizio Oct. 18 disclosed the "Fall Fest" programming lineup for its ad supported WatchFree+ streaming platform. Fall Fest is a curated collection of TV shows, movies and originals that is accessible from the Vizio Home Screen and...

Clockwise Film
Oct 2nd, 2026
UEFA Champions League Final.

UEFA Champions League Final. This marked the fourth consecutive year of Clockwise and Omnicom's partnership as Pepsi's media tea at the UEFA Champions League Final, delivering photo and video content to support international agencies across the event. Lean sports event content production. This year's production presented a unique challenge. With the final taking place so close to the FIFA World Cup in the United States, the crew was intentionally streamlined. Its task was to maintain the same premium quality and meet an extensive list of deliverables with a smaller team on the ground. City-wide brand activations. A key priority was documenting Pepsi's activation at the Champions Festival, capturing how the brand stood out and engaged fans within a highly competitive event environment. Clockwise also covered the Champions Night guest programme, which brought together some of European football's biggest names, alongside the Pepsi Summit. Finally, its team captured the atmosphere surrounding the biggest club football match in the world, from fan experiences and city-wide energy to out-of-home branding across Budapest. It's a project that perfectly reflects the Clockwise approach: creating branded content that meets the demands of a commercial brief, adapting to the fast-moving nature of major live events, and embracing the opportunity to work in remarkable locations. Budapest provided the perfect backdrop - a vibrant city rich in character, culture, and energy. Clockwise is already looking ahead to seeing what Pepsi has planned for the 2027 final. Madrid, Clockwise is ready.