Senior Implementation Specialist

Overview

As a Senior Client Success Engineer, you lead the design and execution of scalable technical solutions during late-stage sales and complex onboarding initiatives. Acting as a trusted technical advisor, you take ownership of high-impact client projects, mentor team members, and drive process improvements that elevate client success outcomes. In this senior role, you bridge technical discovery with delivery, ensuring long-term value and satisfaction across strategic accounts.

Responsibilities

• Lead technical discovery and solution design during late-stage sales engagements for strategic clients
• Develop complex implementation plans and ensure seamless handoffs to delivery and support teams
• Own the technical implementation and optimization of high-impact client projects, customizing solutions to meet unique business requirements
• Serve as the primary technical contact for advanced issues related to software, product data feeds, API integrations, and FTP
• Provide expert-level platform training and consultation to client stakeholders
• Partner with Sales, Product, Engineering, and Client Success to ensure client needs are met and technical challenges are addressed
• Mentor and coach junior Client Success Engineers, supporting knowledge sharing and technical skill development
• Drive cross-functional initiatives that improve internal processes, workflows, and client engagement practices
• Develop technical enablement resources (e.g., webinars, videos, documentation) to support onboarding and education at scale
• Communicate complex technical concepts clearly to both technical and non-technical stakeholders
• Represent the voice of the client in product feedback loops, collaborating with Product Management on feature evolution
• Take ownership of high-risk client situations, ensuring proactive intervention and resolution

Qualifications

Minimum Qualifications

• 3+ years of experience in a client-facing technical role within SaaS, with a focus on onboarding or solution engineering for enterprise-level clients
• Fluent in both written and spoken English
• Deep experience with product data feed formats (XML, TXT, CSV, JSON) and FTP protocols
• Advanced expertise in REST and SOAP API integrations and troubleshooting
• Strong working knowledge of Excel and HTML
• Demonstrated ability to manage multiple complex client projects simultaneously
• Excellent problem-solving, time management, and prioritization skills
• Strong communication and presentation skills for technical and non-technical audiences
• Proven ability to document processes and create technical enablement materials
• Ability to thrive in a fast-paced, dynamic environment and adapt to evolving priorities

Preferred Qualifications

• Bachelor\’s degree in computer science, Information Technology, or a related field
• 5+ years of experience in a client-facing technical role within SaaS, with a focus on onboarding or solution engineering for enterprise-level clients
• Additional language proficiency is a plus
• Experience working with enterprise clients and/or within the e-commerce industry
• Familiarity with remote-based training tools
• Project Management experience or certification (e.g., PMP, Agile)
• Demonstrated success in developing online technical training content
• A proactive, entrepreneurial mindset with the ability to work independently and lead initiatives

Travel

• 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.

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 Wellness days and 1 Paid Volunteer Day
• Flexibility to choose where you work – at home, in the London office, or both
• 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

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.