Home Job Customer Success & Sales Intern at a FinTech startup

Customer Success & Sales Intern at a FinTech startup

Customer Success & Sales Intern – Client Success and Business Development Specialist

Key Responsibilities
• Manage relationships with existing clients, ensuring satisfaction and identifying upselling and cross-selling opportunities
• Proactively follow up on qualified leads and convert prospects into customers through calls, emails, and product demonstrations
• Analyze customer success metrics (churn rate, NPS, customer lifetime value) and prepare weekly reports for the management team
• Develop and execute customer retention strategies, including onboarding programs and regular check-ins
• Collaborate on creating sales content (proposals, success stories, presentation materials) and optimize the sales process
• Support market research and competitive analysis to identify new business opportunities and target segments

Ideal Start Date and Length
• Ideal start date: September 2025
• Duration: 6 months with possibility of extension to 12 months
• Work mode: Hybrid (3 days in-office, 2 days remote)

Ideal Profile
• Final year student or recent graduate in Business Administration, Marketing, Communications, or related fields
• Excellent verbal and written communication skills in Spanish and English (B2 minimum)
• Basic knowledge of CRM tools (HubSpot) and analytics platforms (Excel, Google Analytics)
• Proactive profile, results-oriented with ability to work under pressure
• Passion for technology and startup ecosystem, with growth mindset and continuous learning approach

Salary
• Monthly compensation: €500/month

Please note: We recommend you apply to theInterna programme by creating a candidate profile first. You can then apply to as many roles you see fit as well

Explore Other Opportunities

Customer Success & Sales Intern at a FinTech startup

Barcelona

🎧 Customer Success

💰 Paid

30/05/2025

This internship role involves supporting both customer success and business development by managing client relationships, analyzing key success metrics, and contributing to sales content and strategy. The ideal candidate is a proactive, bilingual (Spanish and English) final-year student or recent graduate with CRM knowledge, ready to join a dynamic team in September 2025 for a 6-month hybrid internship.

Public Relations & Social Media intern in a private clinic

Barcelona

📢 Digital Marketing

💰 Paid

27/05/2025

Join a cutting-edge longevity clinic in Barcelona as a PR & Social Media Intern, where you’ll craft creative campaigns and drive media buzz to make the brand a household name. Ideal for an energetic, Spanish-speaking intern passionate about wellness, storytelling, and digital marketing.

UK Business Development intern for Healthcare Startup in Barcelona

Barcelona

📈 Sales and Business Development

💰 Paid

27/05/2025

Join a purpose-driven healthcare organisation improving dental access for people with mobility challenges across the UK and Spain. As a Business & Sales Intern in Barcelona, you’ll support operations, outreach, and cross-market growth while gaining hands-on experience in international healthcare delivery.

Outbound sales intern for a safe-storage startup

Barcelona

📈 Sales and Business Development

💰 Paid

27/05/2025

Join a fast-growing international company in Barcelona as an Outbound Sales Intern, where you’ll help drive lead generation and sales across the EU and UK. Perfect for a proactive, English-speaking candidate eager to gain hands-on experience in a dynamic, international sales environment.

Business Development & Marketing Intern (US & UK Markets) for a LinkedIn AI agent startup

Barcelona

💰 Paid

27/05/2025

Join a fast-growing AI startup in Barcelona that’s redefining LinkedIn outreach for global markets. As a Business Development & Marketing Intern, you’ll support sales, content, and customer success while working directly with the founding team to drive growth in the US and UK.

Business Development Intern – Sales Support & Lead Generation for a platform connecting startups and

Palma

📈 Sales and Business Development

💰 Paid

27/05/2025

Join a fast-growing AI startup in Palma (or remote) that's transforming how investors discover early-stage startups across Europe. As a Business Development Intern, you’ll dive into lead generation, outreach, and sales strategy—gaining hands-on experience at the intersection of AI, startups, and venture capital.

SDR Intern at a cloud and cybersecurity startup in Barcelona (must be Catalan/Spanish speaker)

Barcelona

📈 Sales and Business Development

💰 Paid

13/05/2025

Kickstart your career in B2B tech sales with a 6-month internship at a fast-growing IT company in Barcelona, specializing in infrastructure, cybersecurity, and managed services. As a Sales Development Intern, you'll gain hands-on experience in lead generation, outreach, and CRM tools while working with a dynamic commercial team—ideal for proactive, Catalan/Spanish-speaking students eager to break into tech.

Software engineering intern in an e-commerce startup

Lisbon

💰 Paid

12/05/2025

Join a fast-growing Portuguese e-commerce startup as a Software Engineering Intern, where you'll help build web and mobile features using React, React Native, and Next.js. This is a hands-on role with real impact, offering mentorship, ownership, and the chance to contribute to the launch of a social commerce platform.

Digital Marketing intern at a remote-first e-commerce startup

Lisbon

📢 Digital Marketing

💰 Paid

11/05/2025

Join a fast-growing social shopping startup as a Marketing Intern, where you’ll gain hands-on experience across social media, email marketing, content creation, and user engagement. This is a unique opportunity to contribute to a product launch, work closely with an experienced marketing team, and shape how the brand connects with its community.

Sales intern at a remote-first e-commerce startup

Lisbon

📈 Sales and Business Development

💰 Paid

11/05/2025

Join a fast-growing Portuguese ecommerce startup on a mission to redefine social shopping. As a Business Development & Account Management Intern, you’ll help onboard sellers, analyze performance, and contribute directly to marketplace growth in a remote, high-impact environment.

Implementation Intern at a supplier management software startups

Lincoln

⚙️ Operations

💰 Paid

03/05/2025

The Implementation Intern supports the successful setup of customer sites on the Canopy platform by translating business requirements into clear, actionable documentation for both technical and non-technical teams. This role is ideal for someone detail-oriented and proactive, with strong spreadsheet skills and a desire to grow their technical knowledge in a SaaS environment.

Marketing & Customer Experience Intern at a Jewellery business

Milton Keynes

📢 Digital Marketing

💰 Paid

03/05/2025

Join a growing UK jewellery retailer as it launches its e-commerce presence and builds a digital brand from the ground up. This hands-on internship in Milton Keynes offers experience across marketing, content creation, and customer engagement in a fast-moving retail environment.

US B2B Sales Development Representative Intern

Paris

📈 Sales and Business Development

💰 Paid

02/05/2025

A remote B2B Outbound Sales Internship with a fast-growing AdCreative company, focused on generating leads and driving new business through cold outreach and strategic sales efforts. Ideal for a motivated, US-based individual interested in sales and working independently in a dynamic, creative environment.

Founder’s Associate Intern at an insurance-focussed Fintech

Madrid

💡 Founders Associate

💰 Paid

27/04/2025

We’re looking for a highly analytical and ambitious Founder’s Associate Intern to work directly with the CEO of a leading fintech company in Madrid, supporting strategic projects, research, and day-to-day operations. If you're organized, eager to learn, and excited to gain firsthand experience inside a fast-growing startup, we’d love to hear from you.

AI / Machine Learning intern

Faro District

💻 Web Development and UI/UX

💰 Paid

27/04/2025

We’re looking for a driven Technology Intern with a background in machine learning, TensorFlow, and biometric systems to help advance real-world AI solutions at a cutting-edge secure communications startup. If you have the courage to push new ideas forward, a sharp technical mind, and a passion for innovation, we want to hear from you.

Design intern at an AI startup

Faro District

✏️ Product and Design

💰 Paid

27/04/2025

We’re seeking a talented and disciplined Design Intern to help shape our brand, UI, and marketing assets at a fast-moving tech startup focused on secure communications. If you have sharp design skills, experience with Figma, Canva, and AI imagery, and the drive to lead creative projects within a strategic framework, we want to hear from you.

Sales Development Representative Intern at an AI startup

Faro District

📈 Sales and Business Development

💰 Paid

27/04/2025

We’re looking for a tenacious, detail-driven Sales Intern to help build and execute an AI-powered sales strategy at a fast-growing tech startup redefining secure communications. If you’re a natural leader with a passion for business, courage under pressure, and a drive to deliver results, we want to hear from you.

Sales & Business Development Intern at a Communication Coaching Platform

London

📈 Sales and Business Development

💰 Paid

14/04/2025

Are you ready to make an impact in the sales world? This internship provides an exciting opportunity to gain hands-on experience in B2B sales, lead generation, and business development. Work directly with experienced founders and sales professionals while contributing to the growth of a dynamic communication coaching platform.

Talent Acquisition & Recruitment Internship in an International Energy-Focused HR Consultancy

Madrid

🎧 Customer Success

💰 Paid

11/04/2025

Join a Madrid-based recruitment consultancy specialized in the global energy sector, supporting the France division with end-to-end recruitment tasks. From sourcing to first interviews, you’ll gain hands-on experience in international talent acquisition while sharpening your French, Spanish, and English communication skills. Ideal for someone who thrives in a multicultural environment and wants to grow their career in HR within a dynamic, fast-paced startup.

Marketing & Sales Assistant in an EdTech Company Focused on Chinese Language Learning

Paris

📈 Sales and Business Development

💰 Paid

27/05/2025

Join an international EdTech platform helping children around the world learn new languages through immersive and tech-enabled methods. As a Marketing & Sales Assistant, you’ll support operations across sales, marketing, administration, and communications. This is a hands-on opportunity for someone interested in education, digital tools, and global impact to gain broad experience across teams.

Consultative sales Intern for a Marketing agency in London

London

📈 Sales and Business Development

💰 Paid

08/04/2025

This internship offers a unique opportunity for candidates to gain hands-on experience in sales and account management. The intern will work directly with a growing sales team, contributing to lead generation, account management, and podcast-driven growth strategies. This is a chance to shape the future of the sales process, learn from industry experts, and play an active role in a variety of sales and marketing activities.

English & AI Support Intern in a Company Enhancing Language Services with Technology

Madrid

⚙️ Operations

💰 Paid

07/04/2025

This internship offers a unique opportunity to develop your skills in both teaching and technology, providing you with a well-rounded experience. By working directly with ESL students and engaging with AI-driven improvements, you'll gain valuable hands-on experience that can open doors in both the education and tech industries. If you’re passionate about making a real impact in both education and technology, this is the perfect role to kickstart your career and learn in an exciting, dynamic environment.

English Teaching Intern in a Madrid-based language centre

Madrid

👨‍💻👩‍💻 Curricular Internship

💰 Paid

07/04/2025

A Madrid-based English learning centre is looking for an enthusiastic intern to support its interactive and engaging teaching programs. The centre focuses on making language learning fun and immersive for children through creative teaching methods.

Founders Associate Intern in a Fast-Growing Sports Management Platform – Madrid or Remote

Madrid

💡 Founders Associate

💰 Paid

27/05/2025

An innovative sports management platform is looking for a Founders Associate Intern to join their team and play a key role in scaling the business. This position provides a unique opportunity to work closely with the Founder and CTO and be involved in every aspect of the business, from operations to strategy. The role can be hybrid in Madrid or fully remote, offering a great chance to grow alongside a fast-developing startup.

Digital Marketing intern at theInterna

London

📢 Digital Marketing

💰 Paid

31/03/2025

Join a fast-growing startup connecting top UK & Irish students with startups across Europe as a Digital Marketing Intern, where you’ll take the lead on content, campaigns, and performance analysis. This is a hands-on opportunity to build your skills across the digital marketing stack while making a real impact in an early-stage business.

Customer Success & Sales Intern at a FinTech startup

Explore Other Opportunities

The go-to platform for startups to hire interns for placement opportunities in the UK, Ireland, and abroad.

Quick Links for Students

Quick Links for Startups

Types of Internships

Internship Job Sectors:

Internship by Country

Internship by Roles