Senior Implementation Specialist

The Opportunity

We are seeking a proactive and dilligent Senior Implementation Specialist to join our team. This role is crucial to the seamless onboarding of retailers onto our platform. We are seeking a proactive and diligent Senior Implementation Specialist to become part of our team. This role is crucial to the seamless onboarding of retailers onto our platform. You will work closely with internal groups and external clients, acting as the main point of contact during the onboarding and testing phases of project delivery.

As a Senior Implementation Specialist, you will lead all aspects of Business Acceptance Testing (BAT) and User Acceptance Testing (UAT). You will guarantee that our platform integrations are ready and maintain high quality. Additionally, you will assist clients throughout testing and launch, solving any challenges and encouraging successful results.

Responsibilities

• Own and manage end-to-end implementation of Tier 1 retailers during the onboarding phase.

• Lead and complete Business Acceptance Testing (BAT) for retailers connecting with our platform.

• Conduct User Acceptance Testing (UAT) for projects that are currently being rolled out.

• Serve as the primary point of contact for client-facing onboarding and testing activities.

• Guide and assist retailers through our testing and launch processes, guaranteeing a seamless onboarding experience.

• Mentor and upskill Implementation Specialist peers within the Technical Services team.

• Function as the senior client-facing lead for onboarding, coordinating the retailer’s collaborators and expectations.

• Troubleshoot issues during testing phases and bring them up as needed to internal teams.

• Support dark production testing and launch ceremonies to guarantee a seamless transition to hypercare support and CSM teams.

• Collaborate cross-functionally with Product, Engineering, and Support teams to ensure client requirements are met.

• Document test results, feedback, and issues clearly and professionally for both internal and external audiences.

Requirements

• Proven experience in a QA or Testing role, ideally within an ecommerce or SaaS environment.

• Significant experience in software implementation, onboarding, or technical delivery within a technology environment.

• Strong client-facing experience—you’re comfortable leading external conversations and managing expectations.

• Excellent in the Use of Microsoft Excel, PowerBI, and Project management tools like Monday.com etc.

• Excellent communication skills—both written and verbal. Able to explain technical issues clearly to non-technical collaborators.

• Confident troubleshooting issues and navigating ambiguity to identify root causes.

• Quick learner, autonomous, attention to detail, excellent communication & presentation skills.

• Experience using tools for test case tracking, bug reporting, and collaboration (e.g., Jira, Confluence, TestRail, Slack, etc.) is a plus.If you are looking to join a world-class team and make a tangible impact, this is the perfect opportunity for you!

About ESW

Our purpose is simple: to create moments that matter between people and the brands they cherish. We enable brands to expand their global reach, facilitating simple and seamless ecommerce experiences for consumers worldwide. Through our integration solutions, we deliver a complete international checkout experience, including local duties, taxes, fulfilment, delivery management, and global returns and payment processing capabilities.

Guided by our values—Own It, Champion Simplicity, Win as One, and Debate then Commit—we strive to foster innovation, accountability, and teamwork, creating solutions that inspire trust and drive impactful results.

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