After Sales Account Manager

LG Sonic; Zoetermeer; On-site; EUR 45,000 - 60,000; Full time

Job summary

LG Sonic is seeking a dedicated After Sales / Customer Success professional to manage international accounts from our Zoetermeer office. You will coordinate post-sale services, onboarding, and ongoing support while working closely with cross-functional teams to ensure client satisfaction and renewal potential.

The role emphasizes strong English communication, project coordination, and light technical troubleshooting.

Qualifications

• 1–3 years in customer success, after-sales, or B2B account roles.
• Reside in the Netherlands and available full-time at the Zoetermeer office.
• Strong written and spoken English; able to communicate with international clients.
• Ability to troubleshoot and coordinate with technical teams.

Responsibilities

• Manage day-to-day communications for international accounts and align expectations and timelines across client and internal teams.
• Oversee remote operation of LG Sonic projects; coordinate timelines, resources, and deliverables; monitor status and flag risks.
• Facilitate client onboarding and provide clear instructions or training for on-site teams.
• Conduct first-line troubleshooting; log observations, tests, results, and next steps to identify root causes.
• Capture client feedback and work with internal teams to improve processes and tools.
• Identify renewal and upsell opportunities and contribute ideas to scale After Sales practices.
• Translate water-quality insights into plain-language takeaways and recommended actions.

Skills

English proficiency

Customer-facing experience

Project coordination

Structured problem-solving

Education

Bachelor’s degree (preferred)

Tools

CRM software

Job description

About LG Sonic: LG Sonic

LG Sonic is a global leader in sustainable water quality management, dedicated to developing cutting-edge technologies that help protect water ecosystems. With operations in over 50 countries, we specialize in advanced solutions for algae control, water quality monitoring, and environmental protection. Our award-winning ultrasonic technology, combined with real-time data monitoring, empowers industries, municipalities, and governments to maintain clean and healthy water bodies while reducing chemical use. At LG Sonic, we foster a dynamic and innovative work environment, driven by a passion for sustainability and technological excellence. Join our team and be part of a mission to create cleaner water for future generations.

Position Summary:

Serve as a primary point of contact for B2B customers within our After Sales / Customer Success team, ensuring smooth post-sale operations, clear communications, and dependable service delivery. Acting as both a Customer Success and After Sales Account Manager, the role blends account and stakeholder management with project management coordination and light technical support. You will help clients realize the value of LG Sonic solutions, support long-term partnerships, and contribute to our mission of sustainable water quality management.

Position duties and responsibilities:

• Own day-to-day customer communications for assigned international accounts; align expectations, services, and timelines, and keep both client and internal teams informed.
• Oversee the execution and remote operation of LG Sonic projects. Coordinate timelines, resources, and deliverables; monitor project status; and proactively flag risks or deviations.
• Facilitate smooth client onboarding and deliver clear instructions or training for on-site teams.
• Run first-line, hypothesis-driven troubleshooting; log observations, tests, results, and next steps to reach true causes efficiently.
• Capture client feedback and collaborate internally to improve processes, playbooks, and service tools.
• Spot opportunities for renewals and upselling, and actively contribute ideas to help scale After Sales practices.
• When relevant, translate water-quality insights into plain-language takeaways and recommended actions.

Qualifications and requirements:

• Strong professional English, with the ability to create clarity and drive action in writing and on live calls.
• 1–3 years of experience in customer success, after-sales, project coordination, or similar B2B client-facing roles.
• Evidence of structured problem-solving and comfort with technical systems; you know when to elevate for support and how to frame it.
• Applicants must already reside in the Netherlands (preferably within the Randstad area) and be available full-time at the Zoetermeer office.

Nice to have:

• Spanish language skills, since part of our customer base is Spanish-speaking.
• Familiarity with water technology/water science or adjacent technical domains.

Why Join LG Sonic?

At LG Sonic, we offer an exciting and collaborative work environment where your contributions directly impact our mission of environmental sustainability and innovation. By joining our team, you will have the opportunity to grow professionally while being a part of a global leader in water treatment technology. We believe in investing in our people and fostering an inclusive culture where every team member’s ideas are valued.

LG Sonic Values

Unity, Trust, Positivity, Over deliver and Passion.

Applicants must already reside in the Netherlands, preferably within the Randstad area.