Implementation Specialist in London

RithumTM is the world's most trusted commerce network, accelerating how brands, suppliers, and retailers work together to deliver seamless e‐commerce experiences. We provide an unmatched platform for brands and retailers, enabling them to accelerate growth, optimise operations across channels, scale product offerings and enhance margins. Today, more than 40,000 companies trust Rithum to grow their business across hundreds of channels, representing over $50 billion in annual GMV. Using our commerce, marketing, and delivery solutions, our customers create optimised consumer shopping journeys from beginning to end.

As an Implementation Specialist, you play a pivotal role in designing scalable technical solutions and ensuring smooth transitions from sales to delivery for our strategic clients. You engage during the late stages of the sales process to support technical discovery, develop implementation plans, and serve as a trusted advisor during complex onboarding and expansion efforts. Your technical expertise and collaboration across teams help ensure clients achieve long‐term success with our SaaS e‐commerce platform.

Responsibilities

• Participate in technical discovery and solution design during late‐stage sales cycles
• Create implementation plans and technical documentation to guide delivery
• Lead the technical configuration of the platform for new clients, ensuring a seamless transition from sales to implementation
• Support API integrations, product feed setup, and troubleshooting during onboarding and expansion
• Provide expert technical recommendations to optimize platform usage and align with client goals
• Act as the primary technical point of contact for strategic clients during onboarding and post‐launch
• Collaborate with Sales, Product Management, Engineering, and Client Success Managers to support client needs and platform evolution
• Deliver tailored training and technical enablement sessions to client stakeholders
• Maintain clear, proactive communication with both technical and non‐technical client contacts
• Contribute to internal knowledge sharing through documentation, cross‐training, and resource development (e.g., videos, webinars)

Qualifications

Minimum Qualifications

• 2+ years of experience in a client‐facing technical role within SaaS, ideally in onboarding or solution engineering
• Fluent in both written and spoken English
• Familiarity with product data feed formats (XML, TXT, CSV, JSON) and FTP protocols
• Strong working knowledge of Excel and HTML
• Experience managing multiple complex client projects simultaneously
• Strong problem‐solving skills with a client‐focused mindset
• Excellent communication and presentation skills for both technical and non‐technical audiences
• Strong documentation and process development abilities
• Ability to thrive in a fast‐paced, dynamic environment with shifting priorities

Preferred Qualifications

• Bachelor's degree in computer science, Information Technology, or a related field.
• 3+ years of experience in a client‐facing technical role within SaaS, ideally in onboarding or solution engineering
• Additional language proficiency is a plus
• Expertise in API integrations (REST and SOAP) and troubleshooting complex technical issues
• Experience working with enterprise clients and/or in the e‐commerce industry
• Familiarity with remote‐based training tools

Travel Required

Up to 10%

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

What it's like to work at Rithum

When you join Rithum, you can expect to work with smart risk‐takers, courageous collaborators, and curious minds. As part of the Rithum team, you are valued, supported, and included. Guided by a transparent culture and accessible, approachable leadership, we offer career opportunities aligned to your ambitions and talents. To ensure work and life balance works for you, we also offer an array of resources to support you and your families, including comprehensive benefits and wellness plans.

At Rithum you will:

• Partner with the leading brands and retailers.
• Connect with passionate professionals who will help support your goals.
• Participate in an inclusive, welcoming work atmosphere.
• Achieve work‐life balance through remote‐first working conditions, generous time off, and wellness days.
• Receive industry‐competitive compensation and total rewards benefits.
• Enhanced Private Medical Insurance and a Health Cash Back Plan
• Life insurance & disability benefits
• Pension plan with 4% Company match
• Competitive time off package with 25 Days of PTO, 8 Company‐paid Holidays, 2 paid floating holidays (new in 2026!), 10 paid sick days, 2 Wellness days and 1 Paid Volunteer Day
• £45/month Remote work stipend for internet
• Access to tools to support your wellbeing such as the Calm App and an Employee Assistance Program
• Professional development stipend and learning and development offerings to help you build the skills and connections you need to move forward in your career
• Charitable contribution match per team member

Equal Opportunity Employer Statement

Rithum is an equal opportunity employer. We are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants and teammates without regard to race, religion, color, sex, gender identity, sexual orientation, age, non‐disqualifying physical or mental disability, national origin, veteran status or any other protected characteristic. All employment is decided on the basis of qualifications, merit, and business need.

We're committed to providing reasonable accommodations in accordance with the law for qualified applicants. If you require assistance during the interview process due to a medical condition or need support accessing our website or completing the application process, please reach out to us by completing the Accommodations Request Form. Your comfort and accessibility are important to us, and we're here to ensure a seamless experience as you explore opportunities with our team.

Rithum is committed to promoting equal treatment and opportunities for all genders. To this end, we monitor the gender distribution among our job applicants. Our goal is to use any actionable insights to help inform our hiring strategies.