Business Development Internship

HyLight; Brétigny-sur-Orge; Sur place; EUR 13 000 - 20 000; Plein temps

Avantages offerts par ce poste

Real responsibility

CBO mentorship

Founders mindset

Navigo reimbursement

Bike provided

Free lunch

Offsite retreats

International team

Résumé du poste

HyLight, a climate-tech startup in Île-de-France, seeks a Business Development Intern to drive commercial growth under the CBO. You’ll identify opportunities with infrastructure operators and help shape our market strategy.

You’ll gain deep exposure to customers, HyLight’s technology, and the startup world while owning meaningful projects in a fast-paced, multidisciplinary team.

Fluent French and English required; Master’s degree; 6-month internship starting in September.

Qualifications

• Master’s degree (or equivalent) in Business, Entrepreneurship, Engineering, or related field.
• 6-month internship starting in September.
• Fluent in French and English.

Responsabilités

• Identify and research high-potential customers across target industries.
• Build prospect lists through market research and commercial intelligence.
• Contact prospects via email, LinkedIn, phone, and other channels.
• Support early-stage customer relationships and pre-sales activities.
• Help shape HyLight’s commercial strategy and identify new markets.

Connaissances

Analytical skills

Research skills

Excel/Sheets

CRM experience (HubSpot/Salesforce)

Formation

Master’s degree in Business/Engineering or related field

Outils

HubSpot

Salesforce

Description du poste

HyLight’s mission is to help society become more resilient to climate change by improving the observation and inspection of infrastructure. HyLight designs and operates next-generation airships for aerial inspections. Our aircraft collect LiDAR, imagery, and methane data to help utilities and infrastructure operators inspect their networks more efficiently and sustainably.

Our activities include:

• Detecting methane leaks from gas infrastructures (4% of global GHG emissions)
• Inspecting power lines to prevent outages and wildfires

By 2030, we aim to become the global leader in aerial monitoring.

In just 3 years, we have pushed the realm of possibilities, as we have:

• Developed 8 iterations of the HyLighter
• Logged over 200 flight hours
• Secured our first inspection contracts with Europe’s largest infrastructure operators
• Joined the world's top startup accelerator, Y Combinator
• Raised €6 million

We're well-funded and backed by top investors, providing the resources you wish you had when building your own business. We don't care about traditional roles or titles—just that you’re smart, proactive, and bring the same founder-level ownership and drive to help us build something massive.

Job Summary

As a Business Development Intern, you will play a key role in accelerating HyLight’s commercial growth. Working directly with our CBO, you’ll identify new business opportunities, engage with key infrastructure operators, and help shape our commercial strategy.

This internship offers far more than traditional prospecting. You’ll gain a deep understanding of our customers, our technology, and our market while enjoying significant autonomy and ownership over your projects. If you’re entrepreneurial, curious, and excited about building a fast-growing climate tech company, this role is for you.

The Mission

Under the guidance of the CBO, you will:

• Identify and research high-potential customers across our target industries.
• Build and qualify prospect lists through market research and commercial intelligence.
• Contact prospects through email, LinkedIn, phone, and other outreach channels.
• Manage early-stage customer relationships and support the pre-sales process.
• Help improve our commercial strategy by identifying new markets and opportunities.
• Analyze customer needs, market trends, and competitors.
• Work closely with technical teams to better understand customer challenges and communicate HyLight’s value proposition.
• Contribute to building scalable business development processes as the company grows.

Profile Sought

Education

• Master’s degree (or equivalent) in Business, Entrepreneurship, Engineering, or a related field.
• Looking for a 6-month internship starting in September.

Technical Skills

• Strong analytical and research skills.
• Comfortable using Excel/Google Sheets and presentation tools.
• Interest in B2B sales, business development, and technology.
• CRM experience (HubSpot, Salesforce, etc.) is a plus.

Soft Skills

• Entrepreneurial mindset with strong ownership.
• Autonomous and hands-on in project execution.
• Proactive, resourceful, and comfortable taking initiative.
• Comfortable taking calculated risks.
• Rigorous and organized in delivering high-quality work.
• Curious, eager to learn, and passionate about building and experimenting.
• Comfortable working in a fast-paced, multidisciplinary team.

Languages: French and English required

Bonus Qualities

• Previous startup, consulting, entrepreneurial, or sales experience.
• Experience with outbound prospecting or customer-facing roles.

What We Offer

• Real responsibility and direct impact on HyLight’s commercial growth.
• Mentorship from the CBO and exposure to executive decision-making.
• Opportunity to help build the commercial foundations of a rapidly growing startup.
• 100% reimbursement of public transport pass (Navigo)
• Bike provided for commuting.
• Free lunch.
• Bi-annual offsite trips with the whole team.
• Excellent work environment: international team, team events, beautiful offices on a former airbase.

Why You Should Join

Founder Mentality: We value extreme ownership and want people who think like founders—fast decision-makers, natural problem solvers, and builders.

Ground Floor Opportunity: You’ll help shape the commercial strategy of a company reinventing infrastructure inspection with world-first technology.

Impact & Speed: Your work will directly influence HyLight’s growth by helping us win customers and expand into new markets.

Interview Process

• Introductory phone call (20–30 min)
• Business case study followed by a debrief with a team member
• On-site meeting with the team (3–4h)

Location

You’ll work side-by-side with the commercial, product, and engineering teams in a highly collaborative environment, giving you a unique opportunity to understand every aspect of building a fast-growing climate tech company.