Sr. Sales Assistant

Do you enjoy ensuring sales operations run smoothly? Are you proactive, well-organized, and confident in working with senior stakeholders? Do you thrive in a fast-paced environment where priorities can shift quickly?

We are looking for a Senior Sales Assistant to support our Inside Sales team. In this role, you play a key part in driving sales success by preparing accurate documentation, maintaining high data quality, coordinating with internal teams and customers, and ensuring timely follow-up on critical actions. You will also actively follow up with customers and support key administrative processes that keep the sales engine running.

We are seeking someone with a solid retail background who thrives under pressure and feels comfortable engaging with senior stakeholders. You are proactive, adaptable, and detail-oriented, with the confidence to ask the right questions, challenge assumptions when needed, and ensure priorities and KPIs remain aligned.

In this role, you will be responsible for:

• Acting as the key contact for customers, handling inquiries regarding pricing, product information, and order status, and resolving issues via phone and email.

• Providing administrative and sales support, including preparing quotations, order confirmations, and invoices, and maintaining accurate customer and product data.

• Supporting senior sales account managers with customer follow-ups, key account coordination, and escalation handling.

• Monitoring order progress, KPIs, and sales performance, ensuring timely delivery in close coordination with Logistics and other departments.

• Contributing to process improvements, data quality, and efficient sales administration while ensuring compliance with internal policies.

What do we ask of you?

• Proven ability to perform effectively in a fast-paced environment and handle pressure with confidence.

• Strong communication skills with a customer-focused mindset.

• Agile, flexible, and solution-oriented approach.

• Confidence to challenge assumptions and engage constructively with senior stakeholders when needed.

• Proactive in asking questions to clarify expectations, priorities, and KPIs (essential).

• Strong sense of ownership, accountability, and follow-through.

• A collaborative team player with the ability to work effectively across departments.

Who we are?

Karsten International develops a wide range of products for daily use, from the latest gadgets to sustainable beauty products. You name it, we make it. In addition to working hard and delivering quality, enjoyment and collegiality are our top priorities. The team consists of driven product developers, sales experts, logistics talents, online marketing specialists and graphic designers. Thanks to a broad international network and more than ten years of experience, we are winning the hearts of consumers all over the world with our products. You will be given every opportunity to contribute to this.  

What we offer

• Plenty of space for personal growth, ownership and continuous improvement 

• Excellent pension scheme 

• Travel allowance or OV card, 13th month & 8% holiday pay 

• 25 holidays per year

• Daily fresh lunch, fruit, and great coffee 

• Bootcamp, yoga, football team 

• Option to lease a bike 

• OpenUp for mental well-being + massage at the office 

• Discounts on great products & fun company outings 

• Easily accessible office in Amsterdam 

• Support with HSM visa and 30% ruling (if applicable) 

What you can expect from us

At Karsten International you will join a supportive, ambitious team where we work hard, stay sharp, and enjoy what we do. We are growing fast, so there’s plenty of room to share ideas, take ownership, and really make an impact. We communicate openly, help each other out, and keep things direct but respectful. 

Our core values (woven into how we work together) 

• Efficient & cost-conscious: We manage time and resources smartly, think critically and value what’s already in place. 

• Ambitious with long-term focus: We take ownership, build lasting relationships and stay humble in our success. 

• Striving for the best: We measure, learn, improve—and challenge each other to exceed expectations. 

• Direct & respectful: We communicate openly and treat everyone with respect, regardless of background. 

• We like to have fun: We enjoy what we do and create a positive, energetic work environment. 

Questions? Ask our Recruiter Fanisha: 

Mobile: +31 6 27 46 47 74 | Landline: +31 20 261 4883  
Acquisition responses are not welcome