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Madrid
1.5151GLOBAL
Madrid, ES
Customer Success Manager - B2B2C eSIM
1GLOBAL · Madrid, ES
. API
1GLOBAL is a technology-driven global mobile communications provider dedicated to empowering enterprises worldwide to unlock the full growth potential of mobile connectivity. With a best-in-class telecom technology platform, a comprehensive suite of globally viable regulatory licenses, and privileged access to the telecom wholesale market, 1GLOBAL is uniquely positioned to deliver seamless compliance and connectivity solutions. Serving the world's leading banks, corporations, and digital-first businesses—including neo-banks, travel companies, and payment service providers—1GLOBAL connects over 43 million devices globally.
With 2024 full-year revenue exceeding US$100 million and in line to exceed US$200 million in FY25, 1GLOBAL is a profitable business generating significant cash flows to fund its ongoing investments in infrastructure, transformation, and growth. 2024 saw major client wins and marked 1GLOBAL's evolution from a multi-market telecommunication provider to a global technology-driven mobile connectivity powerhouse.
Established in 2022 by experienced tech founders and entrepreneurs Hakan Koç and Pyrros Koussios, 1GLOBAL is a European technology leader driving digital transformation in the global telecommunications market. It operates as a fully regulated Mobile Virtual Network Operator ("MVNO") in ten countries and as a regulated telecommunications operator in an additional 31 countries. Headquartered in the Netherlands, with world-class R&D hubs in Lisbon, Berlin, and São Paulo, 1GLOBAL employs over 450 experts across 15 countries.
Position Overview
We are looking for a highly motivated and customer-focused Customer Success Manager (CSM) to manage and grow relationships with 1GLOBAL's B2B2C eSIM partners. In this critical role, you'll be responsible for delivering an exceptional end-to-end customer experience across 1GLOBAL telecom services, from onboarding through to ongoing service delivery and support.
As a CSM, you will work closely with cross-functional teams including Sales, Technical Support, and Product to ensure customers derive maximum value from our solutions. You will also drive service performance reviews, lead service improvement initiatives, and act as a trusted advisor to your accounts.
Key Responsibilities
- Own the overall customer relationship and experience across 1GLOBAL services for assigned eSIM B2B2C accounts
- Lead smooth and professional onboarding processes, ensuring customers are set up for long-term success
- Manage ongoing service delivery, acting as the key point of contact for service-related queries and escalations
- Coordinate with internal teams (Support, Network Operations, Sales, Product) to resolve issues and improve customer outcomes
- Conduct regular Service Reviews and performance reporting, identifying and executing Service Improvement Plans as needed
- Build strong, long-term relationships that drive retention, growth, and advocacy
- Monitor usage trends and customer health metrics to identify risks and opportunities for expansion
- Champion the voice of the customer internally to influence product and process improvements
- Experience in a customer-facing role within the telecommunications industry (Mobile services, eSIM solutions, API integrations, business process, partnership management)
- Strong knowledge of telecom services, connectivity platforms, and channel/partner expectations and management
- Exceptional interpersonal and relationship management skills
- Excellent written and verbal communication; capable of delivering clear, impactful updates to both technical and non-technical stakeholders
- Highly organized, detail-oriented, and capable of managing multiple priorities in a fast-paced environment
- Comfortable leading cross-functional initiatives and influencing without direct authority
- A proactive problem-solver who thrives in a customer-first culture
Why 1GLOBAL?
- Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 100% year-on-year under the leadership of successful tech entrepreneurs
- Major Transaction Exposure: Be in the driver's seat for transactions that will have an impact on the future telco industry
- Work with a Talented Team: From the Board and the Founders to the Senior Management Team, you will collaborate daily with the most capable and renowned external advisors, and constantly being exposed to talented and driven individuals
- Dynamic Work Environment: Thrive in a collaborative, fast-paced workplace where innovation is encouraged, and every contribution counts
- Professional Development: Work alongside industry experts to enhance your skills and knowledge in a cutting-edge field
- International Experience: Gain opportunities to work in different 1GLOBAL offices around the world as you grow within the company
- Open Communication Culture: Join a team where your ideas are heard, and open dialogue is encouraged, fostering a supportive and transparent work environment
- Get Things Done Attitude: Be part of a results-driven team that values efficiency, creativity, and the drive to make a tangible impact in the industry
1GLOBAL is an equal opportunity employer, we value your character as much as your talent. Diversity drives our innovation, and we offer a collaborative, dynamic, and international work environment. We are excited for you to join our mission to revolutionise connectivity globally.
Insider.
Madrid, ES
Customer Success Manager (Madrid, Spain)
Insider. · Madrid, ES
. Agile SaaS Word
Before jumping into all the information about the role and what you can bring to the table, let us introduce ourselves real quick.
About Us
We are Insider, the fastest-growing global MarTech scale-up and the #1 AI-native Customer Experience and Marketing platform trusted by enterprise brands worldwide. Our story began with six desks and a vision to create a single platform to make industry-first CX technologies and emerging channels accessible to marketers worldwide. Today, with 1500+ teammates across 50+ nationalities, we continue to push the boundaries of what’s possible in CX. Our architecture brings together unified customer data, advanced journey orchestration, and comprehensive AI capabilities by seamlessly blending predictive, generative, and agentic AI into a single customer engagement platform that empowers teams to activate customer engagement across 12+ channels.
We recently raised one of the largest funding rounds in the industry, a $500M Series E led by General Atlantic. We are backed by top-notch investors, including Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst, and trusted by 1200+ brands from high-growth startups to the most prestigious Fortune 500 companies such as Samsung, Nike, L’Oreal, Singapore Airlines, Nestlé, Nissan, Lenovo, Puma, IKEA, Allianz, Domino's, and the list goes on.
Insider was congratulated for becoming one of the only woman-founded, women-led B2B SaaS unicorns in the world, achieving $200M in CARR (Committed Annual Recurring Revenue). According to Gartner, we are the dominant leader in Multichannel Marketing. Don’t just take our word for it — see for yourself. We consistently outperform and continue our leadership, and the results speak for themselves.
From day one, Insider’s mission has not been only to build a world-class product company, but also to create one of the most socially progressive technology communities in the world. Through our corporate social responsibility initiatives like 100Projects, SheCodes, SheLeads, and SheMarkables, our community has committed to scaling its impact on our communities across 27+ countries, driving initiatives in health, education, farming, animal rights, and increasing women’s representation in STEM.
Behind all these achievements is an exceptionally talented, visionary team of overachievers across 27+ countries that moves fast and agile, creating cutting-edge products, and focuses on making an impact. If you want to be a part of this journey, just keep reading.
What we’re looking for
We're looking for a relationship-driven, strategically-minded, and deeply proactive Customer Success Manager to join our team - owning client partnerships across Spain, Italy, and Portugal, while supporting broader EMEA operations.
If your sweet spot sits at the intersection of:
- Building trusted, long-term relationships with clients,
- Proactively driving product adoption and measurable value,
- Translating customer needs into actionable solutions, and
- Being the person who anticipates challenges, steps in early, and ensures clients feel supported at every turn
This role requires strong autonomy and initiative. You'll proactively engage with busy stakeholders, uncover their goals, and deliver tailored guidance that helps them maximize impact from our platform. You'll provide expert consultation on best practices, deliver training, surface relevant use cases, and ensure usage stays high and value stays clear.
Language requirements: Fluency in Spanish is essential. Italian and Portuguese are highly desirable.
Responsibilities:
- You’ll be the face of Insider to our clients! You’ll be the bridge between their needs and our technology
- Help our clients understand their needs and which of our features and products best match their goals and expectations
- Make sure our clients are utilizing our technology at their best so that we can fully provide them our world-class service. You’ll monitor and facilitate the customer's adoption of our technology
- Work with our data-geeks (aka engineers and developers) and product specialists whenever it’s required to make sure the client has full tech support, if necessary
- Develop and maintain key account plans that identify opportunities to boost the value we’re looking to add to our clients’ organization
- Proactively provide constant feedback to your team on market trends, unmet needs, and opportunities to create a bigger impact on our partnership with our client
- Establish a trusted adviser relationship that ensures our customer's overall satisfaction with our services and technology
- Plan strategies to help the customers meet their objectives, prioritizing and driving resolution on escalated customer issues
- Bring new product ideas to the table! As an account strategist, you will be helping our product and design gurus shape our product roadmap
- Previous work experience in customer-facing roles: customer success, account management, or strategic consulting.
- Digital marketing-related experience in a customer-oriented position
- Show us that “you’ve got what it takes” to collaborate and build strong relationships with customers, especially at the executive level
- Solid oral and written communication abilities, with positive and energetic phone skills and exquisite listening skills. Alas, we’ve got clients all over the world!
- Be a self-motivated and savvy tech bug, always in search of savvy solutions and ideas to improve our relationship with our clients
- Cherish one of our core ethos: care. You’ll need to care for our clients and make sure they feel at home with our products and our assistance
- Superior project and time management skills. A keen eye for detail is a plus!
- Passion for testing, measuring and improving outreach and follow up effectiveness
- The ability and flexibility to work in a fast-paced startup environment
- A university degree in Business, Marketing, Engineering, or related fields
- Strong communication skills in English and Spanish (additional Italian or/and Portuguese would be an advantage)
- A chance to work in an international, diverse, and inclusive environment
- Access and opportunity to gain a limitless network all over the globe
- A chance to become a Shareowner with the "Shareowner System" that we offer to all Insiders who meet certain criteria
- To be part of an industry that’s shaping the future of customer experience
- Access to many hard and soft skills pieces of training to help you improve and challenge yourself
- Access to 16,000+ online courses taught by real-world professionals on the LinkedIn Learning platform to satisfy your hunger for knowledge
- Space to share your skills through training sessions and workshops if you wish. Sharing is caring!
- The infamous team activities that are bursting with fun
- No Dress Code!
Please follow Insider on LinkedIn, Instagram, Youtube, and Medium!
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.