Introduction
An internship letter is a critical document for engineering students and professionals seeking to gain practical experience in their field. Whether applying for a position, confirming an offer, or requesting a recommendation, a well-crafted internship letter can make a significant difference in securing valuable opportunities. This guide provides 16 professional examples of internship letters tailored for engineering internships in 2025, covering various scenarios and purposes.
1. Engineering Internship Application Letter
John Doe
123 Engineering Lane
Tech City, TX 75001
February 15, 2025
Dear Hiring Manager,
I am writing to express my interest in the Engineering Internship position at Innovation Tech Solutions. As a third-year mechanical engineering student at Texas Tech University, I am eager to apply my knowledge in a real-world setting.
My academic projects, including the design of a sustainable energy system, have prepared me to contribute to your team. I am particularly interested in your company’s focus on renewable energy solutions.
Thank you for considering my application. I look forward to the opportunity to discuss how my skills align with your needs.
Sincerely,
John Doe
2. Acceptance of Engineering Internship Offer
Jane Smith
456 Innovation Drive
Silicon Valley, CA 94567
March 10, 2025
Dear Dr. Smith,
I am pleased to accept the offer for the Engineering Internship at Tech Innovators Inc. I am excited to join your team and contribute to the development of cutting-edge technologies.
As discussed, I will begin on June 1, 2025, and am committed to dedicating 20 hours per week to the internship. Please let me know if there are any additional documents or preparations required.
Thank you for this opportunity. I look forward to a productive and enriching experience.
Sincerely,
Jane Smith
3. Request for Engineering Internship Opportunity
Michael Johnson
789 Research Boulevard
Science City, NY 10001
January 20, 2025
Dear Dr. Johnson,
I am reaching out to express my interest in exploring potential internship opportunities in the engineering department at Research Tech Labs. As a senior studying electrical engineering at City University, I am eager to gain hands-on experience in a dynamic environment like yours.
I would appreciate the chance to discuss how my academic background and skills might align with your team’s needs. Please let me know if we can schedule a meeting or call to explore this further.
Thank you for considering my request. I look forward to your response.
Sincerely,
Michael Johnson
4. Engineering Internship Recommendation Request
Emily Davis
1010 Campus Drive
College Town, FL 32301
April 5, 2025
Dear Professor Davis,
I hope this letter finds you well. I am writing to ask if you would be willing to write a letter of recommendation for me as I apply for engineering internships. Your endorsement would carry significant weight, and I would be grateful for your support.
I am particularly interested in opportunities that align with my passion for aerospace engineering. If you are able to recommend me, please let me know if you need any additional information or materials from my end.
Thank you in advance for considering my request. Your guidance has been instrumental in my academic journey.
Sincerely,
Emily Davis
5. Engineering Internship Thank You Letter
David Wilson
1212 Industry Road
Corporate City, IL 60001
May 15, 2025
Dear Mr. Wilson,
I wanted to take a moment to express my sincere gratitude for the opportunity to intern at Industrial Engineering Corp. this summer. The experience has been invaluable, and I have learned so much from the team.
From participating in project meetings to contributing to the design of new manufacturing processes, every moment has been educational and rewarding. I appreciate the trust you placed in me and the support provided throughout my time here.
Thank you again for this incredible opportunity. I am confident that the skills I’ve gained will greatly benefit my future career.
Sincerely,
David Wilson
6. Engineering Internship Rejection Letter
Sophia Martinez
1313 Tech Avenue
Digital City, WA 98001
June 1, 2025
Dear Ms. Martinez,
Thank you for your application to the engineering internship program at Digital Innovations Inc. We appreciate the time and effort you took to apply for this position and share your qualifications with us.
After careful consideration, we regret to inform you that we will not be moving forward with your application at this time. Please know that this decision is not a reflection on your abilities or potential, but rather a result of the highly competitive nature of this program.
We encourage you to apply again in the future and wish you the best of luck in your academic and professional pursuits.
Sincerely,
Sophia Martinez
7. Engineering Internship Offer Withdrawal Letter
Olivia Brown
1414 Innovation Street
StartUp City, CO 80201
July 10, 2025
Dear Ms. Brown,
I am writing to inform you that, after careful consideration, I regret to withdraw my acceptance of the engineering internship offer at StartUp Tech Solutions. This was not an easy decision, as I was truly excited about the opportunity to join your team.
Due to unforeseen circumstances, I need to focus on my academic commitments during the summer. I appreciate the opportunity and are grateful for the confidence you placed in me.
I hope to have the chance to work with your team in the future and wish you continued success.
Sincerely,
Olivia Brown
8. Engineering Internship Extension Request
William Green
1515 Research Road
Lab City, MI 48101
August 5, 2025
Dear Dr. Green,
I hope this letter finds you well. I am writing to request the possibility of extending my engineering internship at Research Lab Technologies beyond the initial term. I have thoroughly enjoyed my time here and believe that continuing would greatly benefit both myself and the team.
I am particularly interested in seeing the current project through to completion and contributing to any new initiatives. Please let me know if this is feasible and if there are any additional steps I need to take.
Thank you for considering my request. I look forward to your response.
Sincerely,
William Green
9. Engineering Internship Completion Letter
Emma Taylor
1616 Development Drive
Dev City, OH 43001
September 1, 2025
Dear Ms. Taylor,
As my internship at Development Tech Corp comes to an end, I wanted to take a moment to reflect on the past few months. This experience has been incredibly rewarding, and I am grateful for the opportunity to have worked alongside such a talented team.
I have gained valuable skills in software development and project management, which I am confident will be instrumental in my future career. Thank you for your guidance and support throughout this journey.
I wish the company continued success and hope to stay in touch with the team.
Sincerely,
Emma Taylor
10. Engineering Internship Follow-Up Letter
Liam White
1717 Engineering Way
Engineer City, PA 17001
October 15, 2025
Dear Mr. White,
I hope this letter finds you well. I am following up on my application for the engineering internship at Engineering Solutions Inc. submitted on September 20, 2025.
I understand that hiring processes can take time, but I wanted to express my continued interest in the position. I believe my background in mechanical engineering and my passion for innovative design would make me a strong fit for your team.
Please let me know if there is any additional information I can provide or if you would like to schedule an interview at your convenience.
Thank you for your time and consideration.
Sincerely,
Liam White
11. Engineering Internship Reference Request
Noah Lewis
1818 Tech Boulevard
Reference City, AZ 85001
November 10, 2025
Dear Mr. Lewis,
I hope this letter finds you well. As I prepare to apply for engineering internships, I am writing to ask if you would be willing to serve as a professional reference for me. Your insights and endorsement would be invaluable to my applications.
During my time at Tech Solutions Inc., I had the opportunity to work on several projects under your guidance, including the development of a new product line. Your mentorship was instrumental in my growth as an engineer.
If you are able to serve as a reference, please let me know if you need any additional information from me. I would be grateful for your support.
Thank you for considering my request.
Sincerely,
Noah Lewis
12. Engineering Internship Offer Comparison Letter
Ava Moore
1919 Comparison Lane
Decision City, GA 30001
December 5, 2025
Dear Ms. Moore,
I am writing to inform you that, after careful consideration, I have decided to accept the engineering internship offer at Innovation Tech Solutions. While I was impressed by the opportunities at your company, this position aligns more closely with my long-term career goals.
I appreciate the time and effort you and your team invested in the interview process and in presenting your program. It was a difficult decision, as both opportunities were exceptional.
Thank you again for the offer and for the opportunity to learn more about your team.
Sincerely,
Ava Moore
13. Engineering Internship Program Evaluation
Ethan Hall
2020 Evaluation Road
Review City, NC 27501
January 2, 2025
Dear Mr. Hall,
I am writing to provide feedback on my experience with the engineering internship program at Evaluation Tech Corp. Overall, the program was well-structured and provided valuable hands-on experience.
The mentorship provided by the team was exceptional, and the projects I worked on were both challenging and rewarding. However, I suggest considering additional training sessions on project management tools to further enhance the intern experience.
Thank you for the opportunity to participate in this program. I hope my feedback is helpful in improving future iterations.
Sincerely,
Ethan Hall
14. Engineering Internship Program Recommendation
Mia Bennett
2121 Recommendation Drive
Recommend City, SC 29001
February 20, 2025
Dear Ms. Bennett,
I am delighted to recommend the engineering internship program at Recommendation Tech Solutions. As a participant in the 2025 program, I found the experience to be both educational and professionally rewarding.
The program provided a balanced mix of hands-on projects and mentorship, allowing interns to apply theoretical knowledge in real-world scenarios. The collaborative environment and supportive team made the experience even more enriching.
I highly recommend this program to any engineering student seeking to gain practical experience in a dynamic and innovative setting.
Sincerely,
Mia Bennett
15. Engineering Internship Program Application
Logan Walker
2222 Application Way
Apply City, VA 20101
March 15, 2025
Dear Mr. Walker,
I am writing to submit my application for the engineering internship program at Application Tech Corp. As a junior studying computer engineering at Virginia Tech, I am eager to apply my knowledge and skills in a professional setting.
My academic projects, including the development of a smart home automation system, have prepared me to contribute effectively to your team. I am particularly interested in your company’s work in artificial intelligence and machine learning.
I have attached my resume and a copy of my academic transcript for your review. Thank you for considering my application. I look forward to the opportunity to discuss how I can contribute to your team.
Sincerely,
Logan Walker
16. Engineering Internship Program Completion Certificate Request
Isabella King
2323 Certificate Lane
Certify City, WI 53001
April 10, 2025
Dear Ms. King,
I am writing to request a completion certificate for the engineering internship program at Certification Tech Solutions. Having successfully finished the internship, I would like to have formal documentation of my participation to include in my professional portfolio.
Please let me know if there are any specific procedures or forms that need to be completed to obtain the certificate. I would appreciate your assistance in this matter.
Thank you for your support throughout the program. I am proud to have been a part of such a reputable organization.
Sincerely,
Isabella King
Conclusion
These 16 examples of internship letters for engineering internships in 2025 demonstrate the various ways to approach different scenarios related to internship applications, offers, and completion. By tailoring these templates to your specific needs, you can create professional and effective communications that help you stand out in the competitive engineering field. Remember to always customize the content to reflect your personal experiences and the specific requirements of the opportunity you are pursuing.