Introduction to Internship Letters for High School Students in Indonesia 2026
As Indonesia continues to grow economically, high school students have increasing opportunities to gain practical experience through internships. An internship letter is a crucial document that helps students secure these valuable positions. This guide provides 16 professional internship letter examples tailored for high school students in Indonesia seeking opportunities in 2026.
These letters are designed to be adaptable to various industries and company types, ensuring students can present themselves confidently and professionally. Whether applying to multinational corporations or local businesses, these examples cover a wide range of scenarios.
1. Internship Application Letter for Marketing Position
Gading Bukit Indah
Jl. Raya Gading Serpong
Tangerang, Banten 15810
October 15, 2025
Dear Hiring Manager,
I am writing to express my interest in the marketing internship position at PT. Digital Nusantara. As a high school student with a passion for digital marketing, I am eager to contribute to your team while gaining valuable experience.
I have developed strong analytical skills through school projects, and I am confident in my ability to assist with social media campaigns and market research. I look forward to the opportunity to discuss how I can contribute to your team.
Thank you for considering my application.
Sincerely,
Adelia Putri
2. Letter Requesting Internship in Engineering Field
Jl. Cendrawasih No. 12
Bandung, Jawa Barat 40112
November 2, 2025
Dear Mr. Sutanto,
I am reaching out to express my interest in an engineering internship at PT. Cipta Teknologi Indonesia. As a high school student with a strong interest in mechanical engineering, I am eager to learn from your experienced team.
I have completed several school projects involving mechanical designs, and I am confident that this internship will provide me with the practical experience needed to further my education and career.
Thank you for considering my application. I look forward to the opportunity to contribute to your team.
Best regards,
Rizki Dwi Nugroho
3. Internship Application for Environmental Conservation
Perumahan Green Valley
Jl. Hutan Lindung No. 45
Bogor, Jawa Barat 16710
November 10, 2025
Dear Ms. Widyastuti,
I am writing to apply for the environmental conservation internship at Yayasan Hijau Indonesia. As a high school student passionate about sustainability, I am eager to contribute to your conservation efforts while gaining hands-on experience.
I have led several school initiatives focused on reducing waste, and I am confident that my enthusiasm and dedication will make me a valuable addition to your team.
Thank you for considering my application. I look forward to the opportunity to work with your organization.
Sincerely,
Clara Ayu Puspita
4. Letter Applying for Internship in Healthcare
Jl. Kesehatan No. 78
Surabaya, Jawa Timur 60275
November 20, 2025
Dear Dr. Hartono,
I am writing to express my interest in the healthcare internship program at Rumah Sakit Umum Bhakti. As a high school student aspiring to pursue a career in medicine, I am eager to gain experience in a clinical setting.
I have volunteered at a local clinic, where I assisted with patient intake and basic administrative tasks. I am confident that this internship will provide me with the opportunity to further develop my skills and understanding of the healthcare field.
Thank you for considering my application. I look forward to the possibility of contributing to your team.
Best regards,
Muhammad Alvaro
5. Internship Application for IT and Technology
Jl. Teknologi No. 99
Jakarta, DKI Jakarta 10220
December 1, 2025
Dear Mr. Wijaya,
I am writing to apply for the IT internship position at PT. Teknologi Nusantara. As a high school student with a strong interest in computer science, I am eager to contribute to your team while gaining valuable experience.
I have developed proficiency in Python and Java, and I am confident that my technical skills will allow me to assist with software development and system maintenance tasks.
Thank you for considering my application. I look forward to the opportunity to work with your team.
Sincerely,
Ananda Putra Wibowo
6. Letter Requesting Internship in Hospitality Industry
Jl. Parahyangan No. 56
Bandung, Jawa Barat 40111
December 5, 2025
Dear Ms. Sari,
I am writing to express my interest in the hospitality internship program at Hotel Grand Majestic. As a high school student with a passion for customer service, I am eager to gain experience in the hospitality industry.
I have experience working in a family-owned restaurant, where I honed my communication and problem-solving skills. I am confident that this internship will provide me with the opportunity to further develop these skills in a professional setting.
Thank you for considering my application. I look forward to the possibility of contributing to your team.
Best regards,
Putri Anggun Kusuma
7. Internship Application for Finance and Accounting
Jl. Keuangan No. 34
Jakarta, DKI Jakarta 10710
December 10, 2025
Dear Mr. Aditya,
I am writing to apply for the finance and accounting internship at PT. Keuangan Nusantara. As a high school student with a strong interest in finance, I am eager to gain practical experience in this field.
I have completed coursework in financial management, and I am confident that my analytical skills will allow me to assist with budgeting and financial reporting tasks.
Thank you for considering my application. I look forward to the opportunity to contribute to your team.
Sincerely,
Dwi Anggara Putra
8. Letter Applying for Internship in Education
Jl. Pendidikan No. 67
Yogyakarta, DI Yogyakarta 55211
December 15, 2025
Dear Ms. Dewi,
I am writing to express my interest in the education internship program at Sekolah Dasar Harapan. As a high school student passionate about education, I am eager to gain experience in a classroom setting.
I have experience tutoring younger students, and I am confident that this internship will provide me with the opportunity to further develop my teaching skills and understanding of educational principles.
Thank you for considering my application. I look forward to the possibility of contributing to your school community.
Best regards,
Ayu Lestari
9. Internship Application for Non-Profit Organization
Jl. Kemanusiaan No. 23
Jakarta, DKI Jakarta 10320
December 20, 2025
Dear Mr. Wirawan,
I am writing to apply for the internship program at Yayasan Kemanusiaan Indonesia. As a high school student with a strong commitment to social causes, I am eager to contribute to your organization’s mission while gaining valuable experience.
I have volunteered for several community service projects, and I am confident that my dedication and enthusiasm will make me a valuable addition to your team.
Thank you for considering my application. I look forward to the opportunity to work with your organization.
Sincerely,
Fajar Budiawan
10. Letter Requesting Internship in Graphic Design
Jl. Kreatif No. 89
Surabaya, Jawa Timur 60175
December 25, 2025
Dear Ms. Rina,
I am writing to express my interest in the graphic design internship at PT. Kreatif Nusantara. As a high school student with a passion for visual arts, I am eager to gain experience in graphic design while contributing to your team.
I have developed proficiency in Adobe Photoshop and Illustrator, and I am confident that my creative skills will allow me to assist with design projects and branding initiatives.
Thank you for considering my application. I look forward to the opportunity to contribute to your team.
Best regards,
Vina Kartika Putri
11. Internship Application for Human Resources
Jl. Sumber Daya Manusia No. 12
Jakarta, DKI Jakarta 10560
December 30, 2025
Dear Mr. Hidayat,
I am writing to apply for the human resources internship at PT. SDM Nusantara. As a high school student with a strong interest in human resources, I am eager to gain practical experience in this field.
I have completed coursework in organizational behavior, and I am confident that my communication skills will allow me to assist with recruitment and employee development tasks.
Thank you for considering my application. I look forward to the opportunity to contribute to your team.
Sincerely,
Dwi Hidayat
12. Letter Applying for Internship in Journalism
Jl. Pers No. 45
Jakarta, DKI Jakarta 10730
January 5, 2026
Dear Ms. Wulandari,
I am writing to express my interest in the journalism internship at Harian Nusantara. As a high school student with a passion for writing and storytelling, I am eager to gain experience in journalism while contributing to your team.
I have written for my school newsletter, and I am confident that my writing skills and attention to detail will allow me to assist with news reporting and editorial tasks.
Thank you for considering my application. I look forward to the opportunity to contribute to your publication.
Best regards,
Nadia Ayu Wulandari
13. Internship Application for Logistics and Supply Chain
Jl. Logistik No. 67
Jakarta, DKI Jakarta 10670
January 10, 2026
Dear Mr. Prasetya,
I am writing to apply for the logistics and supply chain internship at PT. Logistik Nusantara. As a high school student with a strong interest in operations management, I am eager to gain practical experience in this field.
I have completed coursework in supply chain management, and I am confident that my analytical skills will allow me to assist with inventory management and distribution tasks.
Thank you for considering my application. I look forward to the opportunity to contribute to your team.
Sincerely,
Budi Prasetya
14. Letter Requesting Internship in Architecture
Jl. Arsitektur No. 33
Bandung, Jawa Barat 40112
January 15, 2026
Dear Mr. Siswanto,
I am writing to express my interest in the architecture internship at PT. Arsitektur Nusantara. As a high school student with a passion for design and architecture, I am eager to gain experience in this field while contributing to your team.
I have completed several design projects using AutoCAD, and I am confident that my creative and technical skills will allow me to assist with architectural design and planning tasks.
Thank you for considering my application. I look forward to the opportunity to contribute to your team.
Best regards,
Ardi Siswanto
15. Internship Application for Renewable Energy
Jl. Energi Terbarukan No. 78
Denpasar, Bali 80225
January 20, 2026
Dear Ms. Suryani,
I am writing to apply for the renewable energy internship at PT. Energi Terbarukan Indonesia. As a high school student with a strong interest in sustainability, I am eager to gain experience in the renewable energy sector while contributing to your team.
I have led a school project focused on solar energy, and I am confident that my enthusiasm and technical knowledge will make me a valuable addition to your team.
Thank you for considering my application. I look forward to the opportunity to work with your organization.
Sincerely,
I Made Surya Negara
16. Letter Applying for Internship in Event Management
Jl. Event No. 90
Jakarta, DKI Jakarta 10450
January 25, 2026
Dear Ms. Kusumawardhani,
I am writing to express my interest in the event management internship at PT. Event Nusantara. As a high school student with a passion for organizing events, I am eager to gain practical experience in this field while contributing to your team.
I have organized several school events, and I am confident that my organizational and communication skills will allow me to assist with event planning and coordination tasks.
Thank you for considering my application. I look forward to the opportunity to contribute to your team.
Best regards,
Gita Kusumawardhani
Conclusion
These 16 internship letter examples provide high school students in Indonesia with professional templates to apply for various internships in 2026. Each letter is tailored to a specific industry or field, demonstrating the importance of customization when applying for internships. By using these examples as a guide, students can create compelling internship applications that highlight their skills, experiences, and enthusiasm for their chosen field.