Who is Sertis?

Sertis is a leading Data and AI company based in the heart of Bangkok. We provide customized solutions for our clients ranging from data infrastructure, BI development, and data-driven business insights to forecasting, optimization, and computer vision. Our expert team of data and AI consultants work closely with clients, across different industries such as retail, manufacturing, banking, energy, airlines, agriculture, and healthcare, to understand their business needs and deliver bespoke solutions using cutting-edge technologies that are just right for them.

Our aim is to be one of the leading Data and AI companies globally, where a diverse mix of talent want to come, stay, and do their best work. We pride ourselves on bringing not only the best, but also nice, talent from around the world. We recognise that our company runs on our people's hard work and dedication while maintaining a culture that encourages learning, growth opportunity, innovative contribution, and a sense of ownership.

For more information, please visit: https://www.sertiscorp.com/

Overview of the job

As an Purchasing and AP officer, you will support the day-to-day operations of both our procurement and accounting teams. The role will focus primarily on purchasing activities (approximately 80%), while also handling accounts payable tasks (approximately 20%). You will be responsible for managing purchase processes, coordinating with vendors, ensuring timely deliveries, and maintaining accurate procurement documentation—while also supporting invoice processing and payment tracking. This is a cross-functional role where attention to detail and strong coordination skills are key.

In this role, you will get to:

Purchasing responsibilities (80%)

• Handle end-to-end procurement processes, from reviewing purchase requests to issuing purchase orders and coordinating deliveries
• Source and negotiate with suppliers for competitive pricing and favorable terms
• Work closely with internal teams to identify purchasing needs and timelines
• Maintain accurate purchasing records and supplier databases
• Follow up on deliveries and resolve any order or shipment issues
• Evaluate vendor performance and contribute to procurement process improvements

Accounts Payable responsibilities (20%)

• Process vendor invoices and ensure timely and accurate payments
• Assist with monthly AP reconciliations and support the month-end closing process
• Maintain up-to-date financial records related to procurement and payments
• Coordinate with the finance team to support internal and external audits

You’ll be successful if you have:

• At least 1 year of experience in procurement, administration, or a related field
• Strong attention to detail and organizational skills
• Good communication and coordination abilities in both Thai and English
• Basic knowledge of accounts payable or financial processes is a plus
• Experience with tools like Excel, and familiarity with data analytics platforms (e.g. Power BI, Tableau, Looker) is a strong advantage
• A proactive mindset with the ability to work independently and handle multiple tasks

What are some of the benefits of working at Sertis? 

• Hybrid working environment
• Up early or slow starter in the morning? We have flexible office hours
• Mentorship programs for every level; from executive-level coaching to fresh grad
• Learning support- to help you build your skillset and grow your career
• Get to work and learn from the best in the industry, and share your ideas with like-minded individuals
• ​We cultivate intelligence and learning so that our experts can become community leaders in their respected fields in the tech industry
• Amazing colleagues to enjoy company social outings, parties, and events
• Result-oriented workplace; We provide direction, not orders and give you the autonomy to deliver your best work
• We work at the frontier of innovation in the AI industry
• Work on meaningful solutions that solve and improve real-life problems and challenges
• We run like a startup, and embrace the adventure; we focus on getting things done, while still having a down-to-earth and informal culture

​This is your chance to build your career in a growing data-driven industry. 

Sertis may collect, use, or disclose your personal data or personal data of other persons provided by you in order to carry out your recruitment process. For more information, please refer to our Recruitment Privacy Notice