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Sales Manager / Assistant Sales Manager

Brenntag · Bangkok

📅 11/08/2026
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Job Requirement: The person is passionate about B2B sales , building strategic customer relationships, and driving growth in the Industrial & Specialty Chemicals industry? The level of appointment ( Sales Manager / Assistant Sales Manager) will be based on your experience and expertise. Drive sales by managing existing and new Business Development Customer accounts, including work closely with key/regional accounts, to maximize sales, GP, and customer retention. Lead BES cross-selling opportunities across Water Treatment, Electronics, PCB, Semicon., Data Center industrial utilities, F&B, and chemical trading accounts. Identify customer needs and convert them into product opportunities, including water treatment chemicals, RO membranes, ion exchange resin, activated carbon, process chemicals, utility chemicals, and related specialty products. Develop and execute business plans to grow A/B customers, improve account penetration, and drive project pipeline conversion. Coordinate with Product Management, suppliers, GSO/regional sourcing, RA, Logistics, and Operations to support quotations, RFQs, import feasibility, regulatory checks, stock planning, and delivery execution. Prepare and follow up customer visits, quotations, samples, trials, technical-commercial discussions, and project pipelines. Support growth initiatives in F&B, beverage, sugar/bioethanol, electronics, PCB, semiconductor/data center, industrial water, and wastewater applications. Maintain CRM, sales pipeline, forecast, customer records, and relevant reporting with timely and accurate updates. Monitor market movement, competitor activities, customer demand, and sourcing opportunities to support GP growth and business continuity. Ensure compliance with Brenntag policies, safety requirements, commercial guidelines, and applicable regulatory requirements. Qualifications: Bachelor’s degree in Chemical Engineering, Chemistry, Environmental Engineering, Industrial Engineering, or related field Master’s degree preferred in Business Administration (MBA), Marketing, Chemical Engineering, or related field Over 5 years of experience in Sales, Business Development, and Key Account Management in Water Treatment, Electronics Chemicals, or related industrial markets Proven track record in managing electronics customers and developing business in semiconductor, electronics manufacturing, industrial chemicals, or related industries Candidate should have strong knowledge of electronics manufacturing processes/business and hands-on experience in chemical sales Candidate is preferably currently serving electronics customers in Thailand Proven track record in driving business growth, managing strategic accounts, developing project pipelines, and leading cross-functional collaboration with commercial, technical, and supply chain teams Certification in Water Treatment, Sales & Marketing, Project Management, or related certifications is an advantage
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For people searching Sales

74,689 Sales Jobs Open Right Now — Where to Look

Most are in India and the US. Here's how to pick the right one for you.

74.689Jobs
17.483IN
79%EN

WorkMundi's database shows 74,689 open sales positions globally. India leads with 17,483 jobs, followed by the US with 13,876. If you're open to geography, you have real options — but the sheer number means you need a filter. Don't apply to everything. Pick a country, a company size, and a sales model that matches what you actually want to do.

Almost 8 in 10 of these ads have their text written in English. That's useful for reading the job description and understanding what you're signing up for. But it tells you nothing about whether the role requires you to speak English with customers, partners, or your team. Ask the hiring manager directly during your first conversation.

The employers posting the most are boxlunch, SIMPLE RECRUIT, FlexBoard, and tmobile. If you see their name on a listing, you know they're actively hiring. That can work in your favor — high-volume recruiters often move faster. But volume also means competition. Your application needs to stand out.

Sales interviews almost always include a version of this: 'Tell me about a time you lost a deal. What did you learn?' Prepare a real story where you take ownership of what went wrong and what you'd do differently. Hiring managers want to see you learn, not just win.

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