Commercial

Senior Business Development

Commercial|Full-time

About the job

Our Senior Business Development is more than a deal-closer, they are a trusted advisor who leads with depth, precision, and a sharp eye for what clients actually need. You will take ownership of the full solution journey: from shaping the proposal to driving implementation and ensuring long-term solution health. Solutions span a broad range of data domains, including cloud migrations, data lake & warehouse development, business intelligence/insights, and advanced analytics & AI.

In this role, you will get to:

  • Own the end-to-end commercial pipeline from prospect identification and qualification through to proposal, negotiation, deal closure, and contract signing
  • Lead proposal development by shaping solution approach, scope definitions, commercial pricing, and SLA agreements in close coordination with internal technical and delivery teams
  • Build a deep understanding of client pain points, business priorities, and strategic goals to position the right solutions with a clear and compelling commercial case
  • Build and nurture long-term trusted advisor relationships with key decision-makers and stakeholders, from C-suite to working teams
  • Manage the full contract lifecycle including renewals, amendments, upsell opportunities, and commercial negotiations
  • Act as the primary commercial point of contact throughout the client engagement, ensuring expectations are consistently aligned and value is clearly communicated
  • Collaborate closely with internal technical and delivery teams to ensure proposals are commercially sound and set up for successful execution
  • Maintain a healthy and well-documented sales pipeline, providing accurate forecasts and commercial updates to senior leadership
  • Identify and develop new business opportunities within existing accounts as well as net-new clients across target industries
  • Track commercial risks, flag issues early, and find pragmatic win-win solutions that protect client relationships and business margins

You’ll be successful if you have:

  • 4–5 years of experience in business development, technical sales, solution sales or account management in a B2B environment.
  • Natural ability to lead in a client-facing environment equally comfortable engaging C-suite executives and working-team members with the same confidence and credibility
  • Sharp ability to translate complex data solutions into logical business frameworks that speak directly to real decisions and real outcomes
  • Excellent communication, analytical, and organizational skills detail-oriented and precise, with a strong instinct for what matters most
  • Strong data literacy fundamentals and a genuine appetite to keep learning new data/AI concepts
  • Strong presentation design skills with a structured, logical, and compelling storytelling approach
  • Experience with strategy consulting and Cloud certifications are a plus!

APPLY NOW!

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Benefits & Perks
15 Days Annual leave & 5 Days Personal Leave
Health Insurance
Annual Health Check-up
Referral Bonus 30K
Buying Books / Sertis Library
Free Snacks & Soft Drink
Team Building Activity
Birthday Gifts
Provident Fund
Bonus
businessman shaking hand with business woman
Be a part of

Commercial

team
“ Where we find dynamic and endless opportunities ”

5 steps

for interview

Depends on the department

1

Short Screen Video Call with Talent Acquisition

You will be asked a few questions on your experience, skills, availability, career expectations and motivations.

Short Screen Video Call with Talent Acquisition

2

First Interview

You will go through role-related interview and meet the team to speak more in depth about the role.

First Interview

3

Take Home Test

The take home assignment will be given to you based on the requirements of each position so that we understand your skills deeper.

Take Home Test

4

Second Interview

In this interview, you will have a chance to present your assignment or have a talk with cross-functional team members, depending on each position. This round can be either online or offsite interviews.

Second Interview

5

Sertis Offer

Congrats! We want to make you an offer, usually the offer will take place over the phone and we will send the written form later. Take your time! And ask all the questions you need before making a decision. We completely understand and here to help.

Sertis Offer

This is your chance

to build your career

in a growing data driven

industry.|

Because we cultivate intelligence and learning and help people grow beyond their potential.
We seek passion and ambition to turn data into action!
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Address
Sertis Co., Ltd.
597/5 Sukhumvit Road, Khlong Tan Nuea,
Wattana, Bangkok, Thailand 10110
Tel
(66) 2-001-1893
Fax
(66) 2-001-1894
Work with us

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