Sertis is a leading Data and AI company based in the heart of Bangkok. We provide both off-the-shelf and customised 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/

About the Job

We’re looking for a Lead Accountant to take ownership of our financial operations and drive excellence across accounting, reporting, and compliance. In this leadership role, you’ll oversee end-to-end accounting functions, lead process improvements, manage financial reporting, and play a critical role in shaping our financial strategies as we scale. You will also be a key partner to internal stakeholders, offering insights and guidance that support decision-making and long-term growth.

In this role, you will get to:

• Lead day-to-day accounting operations, ensuring accuracy, compliance, and efficiency across financial transactions and reporting.
• Oversee and manage accounts payable and receivable, payment processing, and monthly closing activities.
• Monitor and manage fixed assets, cash flow, and working capital to ensure optimal financial health and resource allocation.
• Ensure timely and accurate tax submissions (VAT, WHT, CIT), maintaining compliance with all regulatory requirements.
• Prepare and review consolidated financial statements across multiple entities, ensuring consistency and accuracy.
• Supervise the transition and upgrade from TFRS for NPAEs to full PAE standards, ensuring alignment with evolving business needs.
• Partner with cross-functional teams to provide financial insights, support business planning, and optimize financial performance.
• Drive process improvements and implement best practices in accounting systems and controls.
• Mentor and guide junior accounting staff, fostering professional development and high performance within the finance team.
• Stay up-to-date with local and international accounting standards, regulatory changes, and business laws.

Requirements for this role are:

• Thai national with a strong command of English (both written and spoken).
• Bachelor’s degree or higher in Accounting or Finance.
• CPA certification is strongly preferred.
• Minimum 5 years of progressive experience in accounting, with at least 1–2 years in a supervisory or lead role.
• Strong knowledge of tax regulations, BOI privileges, commercial law, and financial compliance in Thailand.
• Experience in both corporate environments and auditing firms is highly valued.
• Demonstrated ability to lead accounting functions, improve processes, and collaborate across teams.
• Proactive, detail-oriented, and analytical, with strong problem-solving skills.

Who excels in this role?

• Someone who loves getting things done!
• Open-minded - eager to ask for comments/suggestions for improvement
• Passionate for anything and everything data
• Able to share and suggest ideas
• Love doing tons of research
• Have a can-do and will-do attitude!
• Ready to tackle any challenges

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.

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