Customer Success Manager H/F

collectivite

Important information

Contract type:

Permanent contract

Salary:

€45-55K total compensation (including a 10% performance-based bonus tied to renewals and upsells)

Location:

Paris, France

Starting date:

8 weeks or more

Work mode:

Hybrid

Published on:

15 April 2026

What they need

Who we are?

HarfangLab is a leading European cybersecurity scaleup focused on securing endpoints against modern cyber threats. Since our founding in 2018, we have become a recognized innovator in endpoint protection, with our flagship EDR (Endpoint Detection and Response) solution continuously enhanced with cuttingedge detection, investigation, and response capabilities.

Building on this strong foundation, our portfolio has expanded significantly. We introduced HarfangLab Guard, a unified security offering that combines EDR and EPP (Endpoint Protection Platform) to provide comprehensive protection, automatic threat blocking, and optimized analyst workflows. More recently, we launched Scout, an integrated Attack Surface Management (ASM) solution that enables organizations to proactively identify vulnerabilities, shadow IT, and configuration gaps - all within the same agent and platform used for endpoint security.

HarfangLab's technology has earned widespread recognition and achieved the distinction of being the first ANSSI (National Cybersecurity Agency of France) certified EDR in 2020, followed by becoming the first to receive ANSSI qualification in 2025. We are also proud to have joined the French Tech 2030 program alongside 80 other French innovative companies at a time when cyber resilience has become a strategic priority for Europe.

Today, we protect hundreds of organizations across the world - from large enterprises and government institutions to midsized businesses - and continue to grow through strategic partnerships, innovation, and a commitment to European cybersecurity sovereignty.

What will you do with us?

As a Customer Success Manager, you will support your clients in adopting our cybersecurity solutions by building trusting and long-lasting relationships. You will be the project owner at your client accounts, ensuring the right stakeholders are engaged at the right time.

You will work closely with the Solution Architects team and manage around 30 accounts, including both public and private clients, across cloud and on-premise environments, with a wide variety of account types.

Your key responsibilities will include:

• Understanding client context and needs, maintaining regular communication to follow up on their projects.

• Guiding clients throughout the customer lifecycle, with a focus on solution adoption and operations.

• Presenting new product features to clients in collaboration with the Sales team.

• Representing the client voice internally, contributing to product development by translating client needs into actionable features.

What you can expect from your future team

You will join the Customer Experience team, currently composed of 4 CSMs. The team is dynamic, collaborative, and tightly knit. While you will be autonomous in managing your accounts, your colleagues will always be there to support you and share their expertise.

Compensation and Benefits

• Salary: €45-55K total compensation (including a 10% performance-based bonus tied to renewals and upsells)

• Health & well-being: Alan insurance + Alan Mind mental wellness app.

• Meal vouchers: Swile card + access to company perks platform.

• Paid time off: 25 days annual leave + 8-11 RTT days.

• Comprehensive onboarding: mentorship and full immersion into the company and its products.

• Professional growth: opportunity to manage more accounts and take on increased responsibilities.

Recruitment Process

1: Introductory call - A first conversation to get to know you, understand your career goals, and answer your initial questions.

2:Interview with the CSM Lead - A video meeting to dive deeper into your background, skills, and how they match the role.

3: Case study - A short business exercise to complete at home and present during the onsite interview.

4: Onsite interview - Meet your future colleagues and present your case study.

5: Final HR video meeting to assess your soft skills and motivations.

Profile wanted

About you

Hard Skills

• Minimum 2 years of experience as a CSM in the tech industry, ideally in cybersecurity.

• Good command of English for international clients.

Soft skills

• Strong ability to work in a team and collaborate in a partnership.

• Autonomous, curious, and detail-oriented.

• Excellent interpersonal skills: comfortable interacting with various stakeholders (CISO, IT Directors, analysts, business experts...).

• Strong analytical and synthesis skills: able to translate client needs into actionable insights and product features.