Seftia Novita Sari Majelis, Thea
Training Manager, Learning & DevelopmentTDCX Thailand, Nov 2025 – Sep 2026. Bangkok.
Runs new-hire training at scale for BPO operations, and shows the results.
- 100% graduation
- Under 1% training attrition
- Above 90% quality after training
What has she achieved?
7 to 21 trainers. The size of the team she led.
Assistant Training Manager, Feb – Nov 2025
About 24 per cohort. The size of each class she trained.
Senior Operations Trainer, Mar 2021 – Jan 2025
Top 5%. Her rank on satisfaction KPIs, company-wide.
Community Operations Specialist, Mar 2019 – Apr 2020
How does she run a program?
Four programs from two roles, newest role first.
Assistant Training ManagerTDCX Thailand, Feb – Nov 2025
Redesigning a program for a client
- Constraint
- The client's needs did not fit the existing training length and structure.
- What she changed
- Redesigned the duration and the delivery structure.
- Outcome
- 100% graduation. Zero attrition during training.
- Not chosen
- Keeping the existing length and structure.It did not fit what the client needed.
- From her CV
- Redesigned training duration and delivery structure to accommodate client requirements, achieving 100% graduation and zero training-period attrition.
Leading a team of trainers
- Constraint
- 2 to 4 classes ran at the same time.
- What she changed
- Led 7 to 21 trainers of several nationalities. Coached them on facilitation.
- Outcome
- Consistent delivery across 2 to 4 classes at once.
- From her CV
- Led a team of 7–21 multi-nationality trainers across 2–4 concurrent training classes…
Senior Operations TrainerTDCX Thailand, Mar 2021 – Jan 2025
Keeping new hires through training
- Constraint
- New hires joined in cohorts of about 24.
- What she changed
- Structured onboarding, coaching, and early help when a trainee slipped.
- Outcome
- Under 1% attrition, year over year. 100% pass rate.
- From her CV
- Maintained training-period attrition under 1% year over year through structured onboarding, coaching, and early performance intervention.
Measuring quality after training
- Constraint
- Training counts only if quality holds on the job.
- What she changed
- Tracked trainee performance data. Gave targeted feedback.
- Outcome
- Above 90% quality after training. Better knowledge retention.
- From her CV
- …achieving a 100% pass rate and post-training quality production above 90%.
Where has she worked?
Six roles since 2017, five of them at TDCX Thailand.
Training Manager
TDCX Thailand, Nov 2025 – Sep 2026
Owned training strategy and delivery.
Assistant Training Manager
TDCX Thailand, Feb – Nov 2025
Led the trainer team. Ran SuccessFactors and Workday.
Senior Operations Trainer, Operations Trainer
TDCX Thailand, Mar 2021 – Jan 2025
Trained cohorts. Q3 Top Trainer 2022.
Subject Matter Expert
TDCX Thailand, Apr 2020 – Mar 2021
The team's product expert.
Community Operations Specialist
TDCX Thailand, Mar 2019 – Apr 2020
Top 5% company-wide.
Education Consultant
BRITON International English School, May 2017 – Mar 2019
Built learning plans.
What can she do?
Design, delivery, operations and leadership.
Design
- Program design
- Needs analysis
- Curriculum
Delivery
- Onboarding
- Facilitation
- Change management
Operations
- SuccessFactors and Workday
- Performance and QA
- PDPA compliance
Leadership
- Coaching trainers
- Working with Operations, Quality and HR
What is her background?
A political science degree, English at C2, and two awards.
Education
Bachelor of Political Science, 2011 – 2015. Cum laude, GPA 3.68.
Languages
English C2 (EF). Bahasa Indonesia, native.
Awards
Q3 Top Trainer, TDCX Thailand, 2022. Top Performer award, 2019 – 2020.