25+ Sample Internship Letter High School Students Indonesia 2026

Muhammad Rizky
Jl. Pemuda No. 45
Jakarta 10220
Indonesia

15 February 2026

Teknologi Muda Indonesia
Jl. Sudirman No. 100
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the IT Support internship position at Teknologi Muda Indonesia. As a high school student with a passion for technology, I am eager to contribute to your team while gaining hands-on experience.

I have completed basic certifications in computer hardware and networking, and I am confident in my ability to assist with technical support tasks. I am available to start immediately and am willing to commit up to 20 hours per week.

Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Muhammad Rizky

Aisyah Putri
Jl. Kebon Jeruk No. 78
Jakarta 11520
Indonesia

16 February 2026

PT. Creative Indonesia
Jl. HR. Rasuna Said No. 3
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am excited to apply for the Marketing Assistant internship position at PT. Creative Indonesia. With a keen interest in digital marketing and creative campaigns, I believe this opportunity aligns perfectly with my skills and aspirations.

I have experience managing social media accounts and creating engaging content for my school’s extracurricular clubs. I am confident in my ability to support your marketing team and contribute to innovative campaigns.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Aisyah Putri

Aditya Widyatama
Jl. Bumi No. 123
Bogor 16111
Indonesia

17 February 2026

Green Indonesia Foundation
Jl. Kebun Raya No. 45
Bogor 16111
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Environmental Conservation internship position at Green Indonesia Foundation. As a high school student passionate about sustainability, I am eager to contribute to your efforts in preserving Indonesia’s natural resources.

I have participated in several environmental campaigns and have experience in data collection for conservation projects. I am confident in my ability to assist your team in promoting environmental awareness and implementing conservation strategies.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Aditya Widyatama

Ninda Sari
Jl. Gajah Mada No. 90
Jakarta 11110
Indonesia

18 February 2026

Bank Central Asia
Jl. Jenderal Sudirman No. 50
Jakarta 10000
Indonesia

Dear Hiring Manager,

I am excited to apply for the Financial Assistant internship position at Bank Central Asia. With a strong interest in finance and accounting, I believe this opportunity will provide me with valuable experience in the banking sector.

I have completed advanced courses in financial mathematics and have experience managing budgets for my school’s student council. I am confident in my ability to assist your team with financial data entry, budget analysis, and other tasks.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Ninda Sari

Rizki Ramadhan
Jl. Senen No. 67
Jakarta 10410
Indonesia

19 February 2026

Desain Kreatif Indonesia
Jl. Thamrin No. 99
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Graphic Design Assistant internship position at Desain Kreatif Indonesia. With a passion for visual arts and design, I am eager to contribute to your team while honing my skills in graphic design.

I have proficiency in Adobe Photoshop and Illustrator, and have created designs for my school’s publications and events. I am confident in my ability to assist your team in creating innovative and visually appealing designs.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Rizki Ramadhan

Putri Wulandari
Jl. Kuningan No. 56
Jakarta 10250
Indonesia

20 February 2026

PT. HR Solutions Indonesia
Jl. Rasuna Said No. 12
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am excited to apply for the Human Resources Assistant internship position at PT. HR Solutions Indonesia. With a strong interest in human resources and organizational development, I believe this opportunity will provide me with valuable experience in the HR field.

I have experience in event planning and have assisted with recruitment drives for my school’s alumni network. I am confident in my ability to support your team with tasks such as employee onboarding, data entry, and event coordination.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Putri Wulandari

Budi Hartono
Jl. Pangeran Jayakarta No. 34
Jakarta 10710
Indonesia

21 February 2026

Tech Innovators Indonesia
Jl. Letjen S. Parman No. 78
Jakarta 11440
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Software Development Assistant internship position at Tech Innovators Indonesia. With a passion for coding and software development, I am eager to contribute to your team while gaining hands-on experience in the tech industry.

I have proficiency in Python and Java, and have developed several small-scale applications for my school’s projects. I am confident in my ability to assist your team with coding tasks, debugging, and software testing.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Budi Hartono

Dwi Amalia
Jl. Sudirman No. 123
Jakarta 10220
Indonesia

22 February 2026

PT. Customer Care Indonesia
Jl. HR. Rasuna Said No. 45
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am excited to apply for the Customer Service Assistant internship position at PT. Customer Care Indonesia. With a strong interest in customer relations and client support, I believe this opportunity will provide me with valuable experience in the customer service industry.

I have experience in handling customer inquiries and have assisted with client feedback collection for my school’s events. I am confident in my ability to support your team with tasks such as responding to customer queries, resolving issues, and improving client satisfaction.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Dwi Amalia

Andika Pratama
Jl. Gajah Mada No. 45
Jakarta 11130
Indonesia

23 February 2026

PT. Sales Indonesia
Jl. Jenderal Sudirman No. 67
Jakarta 10000
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Sales Assistant internship position at PT. Sales Indonesia. With a passion for sales and marketing, I am eager to contribute to your team while gaining hands-on experience in the sales industry.

I have experience in sales and have assisted with marketing campaigns for my school’s entrepreneurial projects. I am confident in my ability to support your team with tasks such as lead generation, sales reporting, and client communication.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Andika Pratama

Lestari Wijayanti
Jl. Kebon Jeruk No. 89
Jakarta 11520
Indonesia

24 February 2026

PT. Public Relations Indonesia
Jl. HR. Rasuna Said No. 34
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am excited to apply for the Public Relations Assistant internship position at PT. Public Relations Indonesia. With a strong interest in media relations and corporate communications, I believe this opportunity will provide me with valuable experience in the PR industry.

I have experience in drafting press releases and have managed social media campaigns for my school’s events. I am confident in my ability to support your team with tasks such as media outreach, event coordination, and reputation management.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Lestari Wijayanti

Rini Setiawan
Jl. Pangeran Jayakarta No. 56
Jakarta 10710
Indonesia

25 February 2026

PT. Logistik Indonesia
Jl. Letjen S. Parman No. 90
Jakarta 11440
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Supply Chain Assistant internship position at PT. Logistik Indonesia. With a passion for logistics and supply chain management, I am eager to contribute to your team while gaining hands-on experience in the field.

I have experience in inventory management and have assisted with supply chain optimization projects for my school’s business club. I am confident in my ability to support your team with tasks such as order processing, inventory tracking, and supply chain analysis.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Rini Setiawan

Adi Nugroho
Jl. Sudirman No. 67
Jakarta 10220
Indonesia

26 February 2026

PT. Data Indonesia
Jl. Jenderal Sudirman No. 45
Jakarta 10000
Indonesia

Dear Hiring Manager,

I am excited to apply for the Data Analyst Assistant internship position at PT. Data Indonesia. With a strong interest in data analysis and interpretation, I believe this opportunity will provide me with valuable experience in the data analytics field.

I have proficiency in Excel and have experience with data visualization tools like Tableau. I am confident in my ability to support your team with tasks such as data entry, data analysis, and report generation.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Adi Nugroho

Dwi Ratna
Jl. Kebon Jeruk No. 34
Jakarta 11520
Indonesia

27 February 2026

PT. Event Indonesia
Jl. HR. Rasuna Said No. 56
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Event Management Assistant internship position at PT. Event Indonesia. With a passion for event planning and coordination, I am eager to contribute to your team while gaining hands-on experience in the event management industry.

I have experience in organizing school events and have assisted with logistics and coordination for my school’s annual festival. I am confident in my ability to support your team with tasks such as event planning, vendor coordination, and on-site management.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Dwi Ratna

Rina Andriani
Jl. Pangeran Jayakarta No. 78
Jakarta 10710
Indonesia

28 February 2026

PT. Digital Marketing Indonesia
Jl. Letjen S. Parman No. 90
Jakarta 11440
Indonesia

Dear Hiring Manager,

I am excited to apply for the Digital Marketing Assistant internship position at PT. Digital Marketing Indonesia. With a strong interest in online marketing and social media management, I believe this opportunity will provide me with valuable experience in the digital marketing field.

I have experience in managing social media accounts and have assisted with SEO optimization for my school’s website. I am confident in my ability to support your team with tasks such as social media management, content creation, and digital advertising.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Rina Andriani

Andi Setiawan
Jl. Gajah Mada No. 45
Jakarta 11130
Indonesia

1 March 2026

PT. Legal Indonesia
Jl. Jenderal Sudirman No. 67
Jakarta 10000
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Legal Assistant internship position at PT. Legal Indonesia. With a strong interest in law and legal proceedings, I am eager to contribute to your team while gaining hands-on experience in the legal field.

I have completed courses in legal studies and have assisted with document preparation for my school’s mock trial club. I am confident in my ability to support your team with tasks such as legal research, document drafting, and case file management.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Andi Setiawan

Lina Widyastuti
Jl. Kuningan No. 56
Jakarta 10250
Indonesia

2 March 2026

PT. Hospitality Indonesia
Jl. HR. Rasuna Said No. 34
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am excited to apply for the Hospitality Assistant internship position at PT. Hospitality Indonesia. With a passion for customer service and hospitality management, I believe this opportunity will provide me with valuable experience in the hospitality industry.

I have experience in front-desk operations and have assisted with event management for my school’s guest lectures. I am confident in my ability to support your team with tasks such as guest services, reservation management, and event coordination.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Lina Widyastuti

Bambang Sutrisno
Jl. Pangeran Jayakarta No. 90
Jakarta 10710
Indonesia

3 March 2026

PT. Engineering Indonesia
Jl. Letjen S. Parman No. 123
Jakarta 11440
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Engineering Assistant internship position at PT. Engineering Indonesia. With a strong interest in mechanical engineering and design, I am eager to contribute to your team while gaining hands-on experience in the engineering field.

I have experience in CAD design and have assisted with engineering projects for my school’s science fair. I am confident in my ability to support your team with tasks such as design drafting, prototype development, and quality control.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Bambang Sutrisno

Dewi Kusumawardani
Jl. Sudirman No. 78
Jakarta 10220
Indonesia

4 March 2026

PT. Healthcare Indonesia
Jl. Jenderal Sudirman No. 45
Jakarta 10000
Indonesia

Dear Hiring Manager,

I am excited to apply for the Healthcare Assistant internship position at PT. Healthcare Indonesia. With a passion for healthcare and patient care, I believe this opportunity will provide me with valuable experience in the healthcare industry.

I have completed first aid training and have volunteered at a local clinic, assisting with patient intake and administrative tasks. I am confident in my ability to support your team with tasks such as patient care, medical record management, and administrative support.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Dewi Kusumawardani

Rani Purwanti
Jl. Kebon Jeruk No. 34
Jakarta 11520
Indonesia

5 March 2026

PT. Education Indonesia
Jl. HR. Rasuna Said No. 56
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Education Assistant internship position at PT. Education Indonesia. With a passion for education and teaching, I am eager to contribute to your team while gaining hands-on experience in the education sector.

I have experience in tutoring students and have assisted with curriculum development for my school’s extracurricular programs. I am confident in my ability to support your team with tasks such as lesson planning, educational material development, and student assessment.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Rani Purwanti

Ardiyanto
Jl. Pangeran Jayakarta No. 45
Jakarta 10710
Indonesia

6 March 2026

Yayasan Peduli Indonesia
Jl. Letjen S. Parman No. 67
Jakarta 11440
Indonesia

Dear Hiring Manager,

I am excited to apply for the Non-Profit Assistant internship position at Yayasan Peduli Indonesia. With a passion for community service and non-profit work, I believe this opportunity will provide me with valuable experience in the non-profit sector.

I have volunteered for several community service projects and have assisted with fundraising campaigns for my school’s charity initiatives. I am confident in my ability to support your team with tasks such as event planning, donor relations, and community outreach.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Ardiyanto

Tuti Kurniawati
Jl. Sudirman No. 56
Jakarta 10220
Indonesia

7 March 2026

PT. Fashion Indonesia
Jl. Jenderal Sudirman No. 78
Jakarta 10000
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Fashion Assistant internship position at PT. Fashion Indonesia. With a passion for fashion and design, I am eager to contribute to your team while gaining hands-on experience in the fashion industry.

I have experience in fashion design and have created garments for my school’s fashion shows. I am confident in my ability to support your team with tasks such as design assistance, sample coordination, and collection management.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Tuti Kurniawati

Dwi Haryanto
Jl. Kebon Jeruk No. 67
Jakarta 11520
Indonesia

8 March 2026

PT. Architecture Indonesia
Jl. HR. Rasuna Said No. 34
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am excited to apply for the Architecture Assistant internship position at PT. Architecture Indonesia. With a strong interest in architectural design and planning, I believe this opportunity will provide me with valuable experience in the architecture field.

I have experience in architectural drafting and have assisted with design projects for my school’s architecture club. I am confident in my ability to support your team with tasks such as design drafting, site analysis, and project documentation.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Dwi Haryanto

Rudi Hartono
Jl. Pangeran Jayakarta No. 78
Jakarta 10710
Indonesia

9 March 2026

PT. Telekom Indonesia
Jl. Letjen S. Parman No. 90
Jakarta 11440
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Telecommunications Assistant internship position at PT. Telekom Indonesia. With a passion for telecommunications and network engineering, I am eager to contribute to your team while gaining hands-on experience in the telecom industry.

I have experience in network configuration and have assisted with telecommunications projects for my school’s IT club. I am confident in my ability to support your team with tasks such as network maintenance, signal optimization, and customer support.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Rudi Hartono

Wulan Sari
Jl. Sudirman No. 34
Jakarta 10220
Indonesia

10 March 2026

PT. Energi Terbarukan Indonesia
Jl. Jenderal Sudirman No. 56
Jakarta 10000
Indonesia

Dear Hiring Manager,

I am excited to apply for the Renewable Energy Assistant internship position at PT. Energi Terbarukan Indonesia. With a strong interest in sustainable energy and environmental conservation, I believe this opportunity will provide me with valuable experience in the renewable energy sector.

I have experience in solar panel installation and have assisted with renewable energy projects for my school’s environmental club. I am confident in my ability to support your team with tasks such as project research, data analysis, and sustainability reporting.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Wulan Sari

Eko Wahyudi
Jl. Kebon Jeruk No. 45
Jakarta 11520
Indonesia

11 March 2026

PT. Wisata Indonesia
Jl. HR. Rasuna Said No. 67
Jakarta 10220
Indonesia

Dear Hiring Manager,

I am writing to express my interest in the Tourism Assistant internship position at PT. Wisata Indonesia. With a passion for travel and tourism management, I am eager to contribute to your team while gaining hands-on experience in the tourism industry.

I have experience in travel planning and have assisted with tour coordination for my school’s cultural exchange programs. I am confident in my ability to support your team with tasks such as itinerary planning, destination research, and client communication.

I am available to start immediately and am willing to commit up to 20 hours per week. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.

Sincerely,
Eko Wahyudi