Reselling Account Manager

Making Science Group S.A.; Madrid; Hybrid; EUR 40,000 - 60,000; Full time

Benefits offered by this job

Indefinite contract

Fixed salary + performance bonus

Restaurant and transportation tickets

Day care ticket

Medical insurance

Referral bonus

Ambassadors Program

Flexible hours + one day work from a​n

Training and language classes

23 vacation days + holidays off

Job summary

Making Science is seeking a Reselling Account Manager to oversee the tech reselling portfolio across major platforms (Google Marketing Platform, Amazon DSP, Others). You will manage relationships with reselling clients without contracted delivery services and drive account growth with cross-selling and upselling.

You will coordinate onboarding/offboarding and act as the key bridge between clients, tech partners, and internal teams to ensure smooth operations and alignment with Finance, Sales

Qualifications

• 3 to 5+ years of experience in digital advertising, tech reselling, or account management within AdTech/MarTech/GPM environments.
• Proven track record in managing commercial client relationships and identifying growth opportunities.
• Hands-on experience in at least one major platform: Google Marketing Platform or Amazon DSP.

Responsibilities

• Oversee reselling portfolio across major platforms and manage client relationships.
• Drive account growth through cross-selling and upselling initiatives.
• Coordinate onboarding/offboarding and ensure strong governance with Sales Ops, Finance, and Delivery.
• Act as the bridge between clients, tech partners, and internal teams to align efforts.

Skills

Digital advertising

Tech reselling

Account management

GMP knowledge

DV360 familiarity

Tools

Salesforce

SAP

Jira

Job description

Career Opportunities: Reselling Account Manager (1805)

Requisition ID1805-Posted10/22/2026-Spain

Making Science is a global digital acceleration company powered by Artificial Intelligence, with over 800 employees and a presence and technological development in 18 markets: the USA, Spain, Mexico, Colombia, Argentina, Brazil, France, Italy, the United Kingdom, Ireland, Portugal, Sweden, Denmark, Norway, Finland, Germany, the Netherlands, and Georgia.

As a consulting partner of Local Planet, the world's largest network of independent media agencies, Making Science develops technological solutions and offers digital marketing, Cloud for Marketing, Adtech, and Martech services through offices, delivery hubs, and centers of excellence that drive job creation and the availability of highly qualified technology talent globally.

The purpose of Making Science is to drive the digital acceleration and sustainable growth of its clients so that they are competitive in the new Artificial Intelligence paradigm. Acting as a comprehensive strategic partner that closes the gap between business strategy and AI-driven technological execution, the company is based on a Hybrid Intelligence model that augments human capabilities.

Its model is based on four proprietary business and innovation lines that stand out for their AI-native technological nature, with more than 400 engineers and data scientists:

The Global Digital Agency with Technology, with 360 digital advertising services that integrate strategic planning, creativity, data, and technology.

RAISING, the Technology Division, which combines business expertise with data science to offer solutions based on AI applied to marketing, such as ad-machina, the Agentic AI platform for integrated marketing.

AWAKE, an AI Venture Studio, was created to lead the Artificial Intelligence revolution that industrializes the creation of AI-native startups and innovative projects that respond to the new needs of the digital economy.

The Investment area, with Ventis and TMQ, is a business diversification line and implementation of the capabilities of all areas of Making Science.

The company participates in various ESG initiatives through the Making Science Foundation, with a firm commitment to obtaining a positive impact on society and the planet.

As a Reselling Account Manager, you will be responsible for overseeing our tech resellingportfolio across major platforms (Google Marketing Platform, Amazon DSP, Others, etc.)Your primary mission will be to manage relationships with reselling clients who do not havecontracted delivery services, drive account growth (cross-selling and upselling), evaluate clientdigital maturity, and ensure smooth operational processes (onboarding and offboarding). Youwill act as the key bridge between the client, tech partners, internal Sales Operations, Finance,and Delivery squads for key clients where reselling and services coverage intersect.
(Note: This role focuses specifically on Reselling Account Management. If a client hires ongoingAlways-On services, day-to-day management of those services will be led by a dedicatedAccount Manager).

What we’d like you to do

Account Growth & Strategic Partner Enablement (Core Focus)

• Client Digital Maturity: Evaluate the client’s tech setup to identify expansion opportunities, promoting the adoption of platform tools, new features, and partner betas.


• Upsell & Cross-Sell: Identify business opportunities within existing reselling accounts,introducing new tech platforms, products, or Making Science services.


• Knowledge Hub & Partner Enablement: Connect clients with partner updates,webinars, newsletters, and specialized sessions to ensure they maximize the value oftheir licenses.

Onboarding, Offboarding & Commercial Governance

• Onboarding Management: Lead the onboarding lifecycle for new tech resellingcontracts, coordinating with Sales Ops, Finance, and AAOS to configure internalcorporate tools (Salesforce, SAP, Jira) and access permissions.


• Commercial Kick-off: Host initial welcome and kick-off meetings with reselling clients toestablish communication channels, platform access, and billing structures.


• Investment & Contract Health: Monitor investment commitments against contractedrates, detect inactive accounts, manage contract renewals, rate updates, oroffboarding/transfer processes when necessary.

Support Orchestration & Stakeholder Management

• Support Routing: Act as the primary commercial contact, ensuring client reactivetickets or ad-hoc support requests are properly routed and resolved by technicaloperations teams within established SLAs.


• Ecosystem Alignment: Build strong relationships with technology partners and directclient contact.

What we’d like you to bring

3 to 5+ years of experience in digital advertising, tech reselling, or accountmanagement within AdTech/MarTech/GPM environments.

Proven track record in managing commercial client relationships and identifying growthopportunities.

Hands-on experience in at least one major platform: Google Marketing Platform (DV360, CM360, SA360, GA4) or Amazon DSP.

Solid general knowledge of GMP: Broad understanding of the Google MarketingPlatform stack and general familiarity with other activation platforms.

Technical & Measurement Fundamentals: Basic understanding of measurement andfirst-party data (1PD) activation from a strategic and commercial perspective.

Perks of joining us

We give you complete stability with an indefinite job contract.

We offer a fixed salary according to your worth and experience, plus a performance based bonus.

Get the most out of your salary with our Flexible Payment Plan (Restaurant Ticket, Transportation Ticket, Day Care Ticket, and Medical Insurance).

Do you know someone that fits in Making Science? Refer him or her, and you can get a bonus if they’re hired!

Feedback is part of our day to day lives. We recognize a job well done through a continuous feedback model.

The opportunity to meet our international team with our Ambassadors Program.

We care about a healthy work-life balance. You can count on having flexible working hours and one day a week where you can work from home.

You will never stop learning with us: subsidized training, free language classes, learning capsules, an e-learning platform, and many more.

Pack your bags! You’ll have 23 vacation days, plus 24th, 31st of December and San Publicito are off, and we have afternoons off on the eve of national holidays.

Work comfortably and follow your own style, because we don’t have a dress code.

We know how to have a good time!

Never go hungry with our free daily fruit and our vending machine card!

Take a break on our terrace, play foosball, darts, or PlayStation

Be a part of a young, adventurous, and professional team, with people you’ll grow fond of!

Challenge the future with us - Join our Making Science team!