Client Onboarding Manager (Amazon or comparable e-commerce Marketplace)

Luminize; San Diego (CA); On-site; USD 100,000 - 135,000; Full time

Benefits offered by this job

Panoramic city view from the office

Free building gym access

Exclusive discounts at tower eateries

Secure bike storage

Job summary

Luminize is hiring an Onboarding Manager (Amazon Marketplace) to own end-to-end onboarding and activation for each brand signed. Based onsite in San Diego, you will serve as the primary contact, drive timelines, and coordinate with Catalog, Supply Chain and Brand Management teams to deliver a seamless transition.

You will leverage deep knowledge of Amazon Seller Central and Vendor Central, lead negotiations, and build strong client relationships to ensure successful launches and ongoing

Qualifications

• 5+ years across eCommerce, brand or account management and project management.
• Proven experience with Amazon Seller Central and Vendor Central.
• Ability to navigate complex onboarding processes and negotiations.
• Strong communication and stakeholder management.
• Proactive ownership mindset.

Responsibilities

• Own end-to-end onboarding and activation for each brand.
• Be primary contact for onboarded brands and build trust.
• Navigate onboarding processes and contract terms.
• Create and manage onboarding plans across Content, Advertising, Supply Chain, Catalog and Data.
• Reconcile sales commitments with onboarding capabilities and renegotiate as needed.
• Own escalations and negotiate scope/timelines without leadership.
• Handoff to Brand Management with documented account.
• Set catalog and SKU launch plans with Catalog team.
• Manage inventory and launch timelines with Supply Chain onboarding.
• Coordinate Seller Central and Vendor Central access via Amazon SPP.

Skills

Amazon Seller Central

Vendor Central

Onboarding management

Communication

Project management

Negotiation

Tools

Asana

Google Workspace

Microsoft Office

Job description

Own the First 90 Days for Every Brand We Sign

Role: Onboarding Manager (Amazon Marketplace)

Location: San Diego, CA 92101 (Onsite at Symphony Towers)

Compensation Range: $100,000 - $135,000

At Luminize, we help brands win, and as one of the top 5 Amazon sellers in the US, we are looking for top performers to grow with us.

Every brand we sign arrives with a set of expectations formed during the sales process. Onboarding is where those expectations meet reality, and that collision is where partnerships are either won or quietly lost. Scope has to get reconciled. Timelines have to get renegotiated. A client who expected one thing has to be walked to a different, better answer without losing confidence in the decision they made.

Right now nobody owns that conversation. We are hiring one person to own it end to end.

You might currently be a

Client Onboarding Manager, Client Partner, Engagement Manager, Customer Success Manager, Implementation Manager, Launch or Activation Manager, Amazon Account Manager, Marketplace Manager, eCommerce Brand Manager, or Client Services Manager. If you've moved brands onto Amazon and lived through the catalog, inventory, and Subscribe & Save side of that transition, you will excel in this role.

If you like ownership, hate loose ends, and want your work to be the reason a client stays for years, apply.

What You'll Be Doing

• Own the end-to-end onboarding and activation of every newly signed brand, from late-stage sales handoff through full transition to the Brand Management team
• Carry the brands you onboard as their primary point of contact, running day-to-day execution and building trust fast with new partners
• Operate within ambiguous and complex onboarding processes, navigating custom contract terms and Amazon requirements
• Build and run detailed onboarding project plans in Asana across Content, Advertising, Supply Chain, Creative, Catalog, and Data
• Reconcile what sales committed with what onboarding can deliver, and lead the conversation with the client when those differ
• Own client escalations and conflicts during onboarding, including renegotiating scope, sequencing, and timelines without escalating to leadership by default
• Serve as the single accountable owner of the client relationship from signature through Brand Management handoff, including holding the line on commitments the client believes were made
• Set and defend the catalog and SKU launch plan with our Catalog team, owning the client-facing timeline and every scope change against it
• Own the client-facing inventory and launch timeline, working through our Supply Chain Onboarding team, and make the call when a forecast or PO commitment has to change
• Assist with Subscribe & Save transfers with Seller Central and direct Amazon rep communication
• Coordinate Seller Central and Vendor Central access via Amazon SPP, plus internal systems permissions
• Guide clients through initial POs, forecasts, and launch planning alongside internal teams
• Join late-stage sales conversations so deal context, scope, and commitments translate cleanly into onboarding deliverables
• Lead structured handoff meetings so the Brand Manager inherits a stable, fully documented account
• Design, document, and continuously improve Luminize's onboarding playbook, standards, and templates
• Juggle multiple concurrent onboardings across different brands and stages

What You Bring

• 5+ years combined across eCommerce, brand or account management, and project management (agency or client services experience preferred)
• Strong hands-on knowledge of Amazon Seller Central and Vendor Central, including working directly with Amazon reps to resolve account-level requests
• A track record guiding clients through complex onboarding or implementation processes
• Demonstrated experience navigating client conflict and negotiating scope or timeline changes with senior stakeholders, ideally in a services or agency setting where the commercial relationship was at stake.
• Serious project management and organizational chops, with the ability to run several timelines at once without dropping detail
• Comfort operating strategically and hands-on in the same day
• Excellent written and verbal communication, with the ability to explain a process clearly to a nervous new client
• A proactive, ownership-oriented mindset and the instinct to build the system, not just work the task
• Proficiency in Asana (or similar), Google Workspace, and Microsoft Office

Work From Symphony Towers

Your office comes with a view, literally.

• Panoramic city and coastline views from your workspace
• Free building gym access, no separate membership needed
• Exclusive discounts at tower restaurants and cafes
• Secure bike storage
• 24/7 paid parking downtown, blocks from the office
• Steps from 100+ top-rated bars, restaurants, coffee shops, and Petco Park

An Office You'll Actually Want to Be In

Built for how great teams actually work.

• Ergonomic standing desks and premium workstations
• Fully stocked kitchen, snacks, espresso
• Monthly all-company lunches to celebrate wins and stay connected
• A team lounge with pool table and games for when you need a break
• Bright, modern, collaborative space designed for focus and connection

Benefits & Perks

You do great work here and we want to take care of you outside of it, too.

• Comprehensive medical coverage, choose from multiple plans through Anthem Blue Cross
• Dental & vision, including orthodontia and annual exams
• Pet benefits, savings on vet care, products, and services
• Paid Vacation, accrue 120 hours a year, with rollover
• Paid holidays and sick time
• 401(k) with company match, we invest in your future, too

Compensation Transparency

We have listed a broad salary range of $100,000 - $135,000/year to account for varying levels of experience, skill sets, and Amazon depth. Where you land in the range will depend on how your background aligns with this role.

We are committed to compensating based on value and impact, not just years on paper, and we are happy to have open conversations throughout the process.

Growth & Career Opportunities at Luminize

At Luminize, growth isn't just something we drive for our clients; it's our mindset and a big priority for our people.

We offer clear career paths and leveling guidelines so you always know where you stand, what's next, and what skills and experience you need to get there. From day one, you'll have visibility into advancement opportunities and what it takes to grow into leadership, specialization, or other cross-functional roles.

We're proud of our strong track record of promoting from within. Many of our team leads and managers started in individual contributor roles and grew by consistently showing initiative, curiosity, and impact. We only hire externally when needed, because we believe the best future leaders are often already here.

You’ll also benefit from:

• Mentorship from experienced managers during 1:1s and annual performance reviews
• Cross-functional exposure to departments including content, brand management, software, supply chain, operations, and catalog
• Learning resources, including Udemy course access, and additional training programs and courses
• A culture that encourages asking questions, trying new things, and leveling up together

If you are excited to take ownership and grow, both in your craft and your career, you will be in good company here.

About Luminize

Luminize is a full-service Amazon growth partner helping brands achieve next-level success in a competitive digital marketplace. From creative strategy to advertising and analytics, we combine expertise and hustle to fuel results for brands in CPG, health, wellness, beauty, and beyond.

We're not your typical agency, and we like it that way. We operate with transparency, celebrate wins often, and treat every brand like it's our own.

If you're ready to work with great people, do work that matters, and keep growing, we'd love to meet you!

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