Here are six different sample cover letters for subpositions related to "tool proficiency," along with the requested fields:

### Sample 1
**Position number:** 1
**Position title:** Graphic Designer
**Position slug:** graphic-designer
**Name:** Sarah
**Surname:** Thompson
**Birthdate:** January 15, 1990
**List of 5 companies:** Apple, Dell, Google, Adobe, Microsoft
**Key competencies:** Proficient in Adobe Creative Suite, CorelDRAW, HTML/CSS, strong creative vision, excellent time management

**Cover Letter:**

Dear Hiring Manager,

I am writing to express my interest in the Graphic Designer position. With over five years of experience in creating visually compelling designs, I have honed my proficiency in various design tools, including the Adobe Creative Suite and CorelDRAW. At my previous position with an ad agency, I successfully managed multiple projects from conception to completion, consistently meeting tight deadlines.

I am particularly excited about the opportunity to work with companies like Apple and Google, known for their innovative approaches. I am confident that my keen eye for design and my commitment to quality work will contribute positively to your team.

Thank you for considering my application. I look forward to the possibility of contributing to your projects.

Sincerely,
Sarah Thompson

---

### Sample 2
**Position number:** 2
**Position title:** Video Editor
**Position slug:** video-editor
**Name:** James
**Surname:** Williams
**Birthdate:** March 22, 1985
**List of 5 companies:** Apple, Dell, Google, Netflix, Adobe
**Key competencies:** Avid Media Composer, Adobe Premiere Pro, Final Cut Pro, attention to detail, storytelling

**Cover Letter:**

Dear Hiring Manager,

I am writing to apply for the Video Editor position at your esteemed company. With extensive experience using industry-standard software such as Avid Media Composer and Adobe Premiere Pro, I believe I can deliver high-quality video content that engages your audience.

Working with platforms like Apple and Netflix has fueled my passion for storytelling through the art of video editing. I thrive in fast-paced environments and can work efficiently while maintaining a keen attention to detail, ensuring that deadlines are met without compromising quality.

I am eager to bring my skills and experience to your team. Thank you for considering my application.

Sincerely,
James Williams

---

### Sample 3
**Position number:** 3
**Position title:** Web Developer
**Position slug:** web-developer
**Name:** Elena
**Surname:** Garcia
**Birthdate:** July 30, 1992
**List of 5 companies:** Apple, Dell, Google, Amazon, Microsoft
**Key competencies:** HTML, CSS, JavaScript, React.js, problem-solving

**Cover Letter:**

Dear Hiring Manager,

I am excited to apply for the Web Developer position. With a strong foundation in HTML, CSS, and JavaScript, complemented by my experience with React.js, I am well-prepared to contribute to your team.

Having worked with various tech giants, including Google and Amazon, I gained invaluable experience tackling complex coding challenges. My problem-solving abilities enable me to find effective solutions swiftly while adhering to project guidelines and deadlines.

I look forward to discussing how I can help your team create exceptional web applications. Thank you for considering my application.

Warm regards,
Elena Garcia

---

### Sample 4
**Position number:** 4
**Position title:** UX/UI Designer
**Position slug:** ux-ui-designer
**Name:** Mark
**Surname:** Johnson
**Birthdate:** February 16, 1988
**List of 5 companies:** Apple, Dell, Google, Adobe, Airbnb
**Key competencies:** User-centered design, Sketch, Figma, usability testing, wireframing

**Cover Letter:**

Dear Hiring Manager,

I am applying for the UX/UI Designer position, fueled by a passion for creating user-friendly digital experiences. My expertise in tools like Sketch and Figma allows me to design intuitive interfaces that improve user satisfaction.

Having successfully collaborated with leading companies such as Airbnb and Adobe, I have a strong grasp of user-centered design principles and a proven record of enhancing product usability through thorough testing and feedback integration.

I am eager to bring my experience in design to your team. Thank you for your time and consideration.

Best,
Mark Johnson

---

### Sample 5
**Position number:** 5
**Position title:** Data Analyst
**Position slug:** data-analyst
**Name:** Laura
**Surname:** Miller
**Birthdate:** November 5, 1990
**List of 5 companies:** Apple, Dell, Google, IBM, Salesforce
**Key competencies:** Excel, SQL, Tableau, data visualization, analytical thinking

**Cover Letter:**

Dear Hiring Manager,

I am writing to apply for the Data Analyst position at your company. With a solid background in statistical analysis and data visualization using tools like Excel and Tableau, I have successfully derived actionable insights that drove strategic decision-making.

I have had the opportunity to work with prominent companies, including IBM and Google, where I honed my analytical skills and contributed to data-driven projects. My commitment to excellence and attention to detail ensures that I deliver accurate and impactful reports.

I look forward to discussing my qualifications further. Thank you for considering my application.

Sincerely,
Laura Miller

---

### Sample 6
**Position number:** 6
**Position title:** Social Media Manager
**Position slug:** social-media-manager
**Name:** David
**Surname:** Brown
**Birthdate:** April 10, 1991
**List of 5 companies:** Apple, Dell, Google, Facebook, LinkedIn
**Key competencies:** Content creation, Hootsuite, Canva, analytics, strategic planning

**Cover Letter:**

Dear Hiring Manager,

I am excited to apply for the Social Media Manager position. My experience with content creation and social media tools such as Hootsuite and Canva equips me to effectively manage and enhance your online presence.

During my tenure with companies like Facebook and Google, I have successfully developed and executed social media strategies that increased engagement and brand awareness. My analytical skills help me derive insights from social media metrics, allowing for continuous improvement.

Thank you for considering my application. I look forward to the opportunity to contribute to your team's success.

Best regards,
David Brown