Principal Solutions Consultant (Martech) in London

Join our high-performing Customer Solutions team at Epsilon as a MarTech Solutions Consultant, Principal. At Epsilon, we empower brands to make smarter decisions through data-driven marketing and cutting-edge technology. We are a leader in digital marketing, identity solutions, and customer experience — driving impactful results for clients across various industries. Our team is passionate about delivering tailored solutions that exceed customer expectations, and we are looking for a dynamic, experienced individual to join us.

This is an individual contributor, client-facing role within the Customer Solutions team, supporting scalable solutions across our Technology and Loyalty products. Your mission is to enable growth by identifying opportunities to help our clients grow through cutting-edge solutions across our technology and loyalty solutions. Your expertise within the vertical will help lead our teams through the pre-sales and solutioning journey to improve client wins, deliver forward-thinking solutions and identify areas to improve efficiency within the business.

Ideal Candidate: The ideal candidate is a proactive technical consultant who has experience in designing bespoke solutions for platforms or technology providers in the MarTech landscape. You will have owned the solution architecture for complex deals, delivered compelling platform demos, and curated best-in-class data strategy that resulted in successful client adoption and activations.

What You’ll Achieve:

• Solution Architecture & Design: Lead the design and technical overview for Epsilon's comprehensive MarTech solutions, focusing on our Loyalty and Technology products to meet specific client requirements.
• Consultative Problem-Solving: Engage clients in deep-dive discussions to uncover technical complexities and identify growth opportunities. Curate bespoke solutions that bring Epsilon's products together and solve our clients' needs.
• Platform Demos: Develop and deliver customised platform demonstrations, focusing on the functional and technical workflow to prove capability and value to both marketing and IT stakeholders.
• Pre-Sales Technical Ownership: Engage with the wider teams to ensure submitted RFI/RFP responses are best in class showcasing the technical capabilities of the Epsilon platform and illustrate the appropriate data flows to support the client grow and achieve their goals.
• Sales Enablement: Become a thought leader in the business on the MarTech landscape providing insights on the Loyalty/Technology space and how Epsilon fits. Elevate and empower the wider team through your knowledge and expertise.
• Cross-Functional Alignment: Work closely with various Epsilon teams to ensure that the solutions pitched are deliverable and that client feedback informs future product roadmaps.

Key Responsibilities:

• Client Strategy & Solution Architecture: Design and present compelling end-to-end Loyalty and CRM solution architectures tailored to a client's specific business needs and existing MarTech infrastructure.
• Integration Overviews: Map out and present comprehensive technical integration overviews detailing data flows, required integrations (specifically those relevant to Loyalty solutions like APIs and cloud infrastructure, and necessary client-side development for successful onboarding).
• Client Discovery & Assessment: Lead and support deep-introspection client discovery calls to assess their current marketing technology stack, business objectives, loyalty program maturity, and data challenges. Leverage this understanding to define a precise, high-impact solution fit.
• Client Engagement: Build and maintain strong technical relationships with key stakeholders across our clients, ensuring a deep understanding of their MarTech stack and strategic initiatives to drive adoption of our platform.
• Platform Demo Development: Be the architect and owner of platform demonstrations. This includes building and maintaining functional demo environments, encompassing the full solution stack: back-end configuration (e.g., data models, loyalty rules, segmentation logic) and the client-facing interface (e.g., personalised customer experiences, campaign orchestration).
• Project Execution & Business Efficiency: Serve as the internal and external subject matter expert on Epsilon's Loyalty and CRM platforms, clearly articulating their technical capabilities, competitive advantages, and roadmap to both technical and non-technical audiences.
• Drive Business Efficiency: Continuously analyse and optimise the solution design cycle, identifying process refinements to deliver integrated solutions, increase client retention.

Who You Are:

What you’ll bring with you (required skills):

• 8+ years in a technical client-facing role, such as Solutions Consulting, Pre-Sales Engineering, or MarTech Architecture.
• Background in database marketing, identity management, CRM, loyalty, and/or digital media is strongly preferred.
• Deep functional and technical knowledge across tech stacks, specifically with platforms focused on CRM or loyalty.
• A solid understanding of system integration techniques such as API architecture (REST, Postman), ETL/ELT principles, web services and cloud connectors.
• Strong knowledge of cloud platforms like GCP, AWS and Azure.
• Demonstrated ability to document and present complex data models and system architectures in a clear, concise manner.
• Comfortable operating within large, complex sales cycles and presenting to various organisational levels, from technical teams to CMOs/CIOs.
• Strong understanding of data privacy regulations and frameworks within the EMEA and US markets, covering but not limited to GDPR, CCPA.

Why you might stand out from other talent (nice-to-have/bonus points!):

• Ability to communicate complex concepts to a technical and non-technical audience.
• Experience leading the design and implementation of Loyalty Platforms for medium and large enterprises.
• Comfortable working with languages like Python or SQL to develop proof-of-concept integrations, data transformations, or custom utilities within a MarTech stack.
• Experience leading technical discovery workshops with engineering teams to define integrations, API specifications, and requirements for complex enterprise systems.
• Expertise in Information Security principles relevant to PII/PHI data handling in enterprise systems, including tokenization, encryption-at-rest/in-transit standards, and compliance auditing methodologies.

When You Join Us, We’ll Create Something EPIC Together. Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. For decades, we’ve provided marketers from the world’s leading brands the data, technology and services they need to engage consumers with 1 View, 1 Vision and 1 Voice. Epsilon’s comprehensive portfolio of capabilities across our suite of digital media, messaging and loyalty solutions bridge the divide between marketing and advertising technology. We process 400+ billion consumer actions each day using advanced AI and hold many patents of proprietary technology, including real-time modeling languages and consumer privacy advancements. Thanks to the work of every employee, Epsilon has been consistently recognized as industry-leading by Forrester, Adweek and the MRC. Epsilon is a global company with more than 9,000 employees around the world.

Epsilon has a core set of 5 values that define our culture and guide us to create value for our clients, our people and consumers. We are seeking candidates that align with our company values, demonstrate them and make them meaningful in their day-to-day work:

• Act with integrity. We are transparent and have the courage to do the right thing.
• Work together to win together. We believe collaboration is the catalyst that unlocks our full potential.
• Innovate with purpose. We shape the market with big ideas that drive big outcomes.
• Respect all voices. We embrace differences and foster a culture of connection and belonging.
• Empower with accountability. We trust each other to own and deliver on common goals.

Because You Matter. We know that we have some of the brightest and most talented employees in the world, and we believe in rewarding them accordingly. If you work here, expect competitive compensation, a great benefits package and endless opportunities to advance your career. We offer hybrid working opportunities, with our office space located in the Iconic Television Centre, White City.

As part of our dedication to enhance our inclusive and diverse workforce Epsilon is committed to equal access to opportunity for people without regard to race, age, sex, disability, neurodiversity, sexual orientation, gender identity, pregnancy and maternity, marriage and civil partnership or religion or belief. We are committed to providing reasonable adjustments for candidates in our application process.