Lead Client Integration Engineer (German Speaking)

Company: Publicis Media
Apply on Partner’s Website
Location: London
Job Description:

Overview

As a Client Integration Engineer at Epsilon, you guide retailers through technical onboarding and post-launch support, ensuring smooth integrations with our RMN platform. You will own client tech relationships, coordinate with Product and R&D, and drive scalable integration solutions. This role blends hands-on engineering with cross-functional collaboration to improve onboarding, resolve issues, and advocate for retailers’ needs. You’ll work in a fast-paced, global environment where collaboration and technical excellence matter.

Pay / Benefits

  • competitive compensation
  • great benefits package
  • career advancement opportunities

Responsibilities

  • Lead new client integrations from a technical perspective
  • Own post-launch technical relationship for clients, aligned with their tier
  • Serve as primary liaison during integrations and secondary contact for debugging
  • Support Client Management in up-sell opportunities
  • Champion feature requests from retailers
  • Coordinate with Product and R&D on short-term workarounds and long-term solutions
  • Implement a global integration strategy and build a roadmap
  • Allocate resources to support integration initiatives and ensure efficiency
  • Collaborate with Sales, Product, Customer Integrations, Platform, Engineering to ensure seamless integrations
  • Foster communication and alignment among partners
  • Lead operational handoffs to Platform Operations
  • Standardize prioritization and documentation for smooth handoffs
  • Collaborate with Engineering, Product, Delivery, Security for system reliability
  • Stay informed on RMN product features and industry trends
  • Maintain knowledge of Epsilon components: Reporting, Ad Serving, API Integration, Product Catalog, Ad Placements
  • Develop team cohesion and multi-functional relationships
  • Identify and simplify processes with senior leadership
  • Create the Implementation and Integration Playbook for global retailer integration

Key requirements

  • Experience in technical B2B roles with large customer segments
  • Strong understanding of integration technologies, APIs, data exchange, and cloud systems
  • Proficiency in web technologies and scripting: JavaScript, Shell, Python, HTML, SQL
  • Experience integrating software systems via APIs
  • Global business awareness and cultural sensitivity
  • Experience managing commercial technology contracts and SLAs; ITIL or similar service delivery methodologies
  • Strong planning and problem-solving
  • Effective communication across technical and non-technical audiences
  • Collaborative mindset and ability to drive change
  • Google Cloud technologies: BigQuery, Google Cloud Storage, Pub/Sub, Kubernetes
  • API integration
  • JavaScript, Shell, Python, HTML, SQL

Posted: September 14th, 2026