I love writing content for brands.



I am Krystel

I enjoy telling stories that reflect a brand’s essence and love helping clients achieve their communication goals. I have a Máster in Public Relations and Agencies Management and a certification from Columbia Business School on Digital Strategies for Business. As a music business enthusiast, I also have a Specialist Certificate in Music Marketing.

For over 9 years, I have worked as a marketer and communicator for businesses in sectors such as pharma, healthcare insurance, mechanical and reliability engineering, sports, education, PR and media. I have worked with diverse markets, including the United States, Puerto Rico, the Dominican Republic, México, Spain, and Germany.

I keep a blog called Chase the Feeling, where I write articles about travel, education, career and wellness.

Universitat Autònoma de Barcelona

Master in Management of Public Relations and Communication Agencies

Columbia Business School

Digital Strategies for Business Certification

University of the Sacred Heart

Bachelor of Arts in Communications

Community Manager

Merck US

Marketing Specialist

Merck US

Marketing Traffic Specialist

MCS Puerto Rico

Bundesliga Social Media Editor

DFL Sports

Marketing Coordinator


Press Office Intern

Solsona Comunicación

My Skills
Communications and Public Relations
Social Media
Graphic Design


Web Content

A webpage is an everlasting presentation of your brand. I make sure it communicates the real you. I can write for you sections such as: About, Philosophy, Services, Products, Contact

Social Media

I can help you transform your profiles into a powerful business tool through profile optimization, content strategy design, style guide, content curation/creation, content calendar, community management and reporting.


I can write blog articles that provide valuable content for your clients, enhancing the essence of your business.

PR, Comm and Marketing

Crafting the right message is as important as choosing the right communications tool. I help you choose the right format and write your content for you in the form of press kits, press releases, media pitches, letters, promotional materials copy, sales proposals templates, and newsletters.

Translation and editing

I can proofread your content and make sure it is well-written and error-free. In addition, I can make you accurate, non-automated translations from and to the following languages: English and Spanish.

Graphic Design

I can provide you with graphic design pieces for your brand's visual communication. From social media headers to promotional flyers, your brand will have a look that impresses.


PR & Marketing tools

- Newsletter conceptualization and email marketing

- Invitation for press conference

Graphic Design

I can create simple graphics for digital and social media.

- Web banners
- Promotional flyers
- Postcards
- Logos
- Posts, Stories, Reels and Video for Social Media

For bigger projects, my creative partner Jalimar Febo from JFD Creations will provide you with great design pieces. You can review her work here.

Social media

Content curation, creation and scheduling:

Chase the Feeling | Instagram
Personal account | Instagram

Post samples | LinkedIn

Post samples | Instagram

Post sample | Facebook


I have written several articles for personal and corporate blogs about a diversity of topics. Here are some of them:

Engineering Industry

VIBRA donates infrared camera to the Puerto Rico Manatee Conservation Center | Published on Vibra's corporate blog
- VIBRA Has Achieved ISO 9001:2008 Certification | Published on Vibra's corporate blog

Sample of my technical writing skills can be seen in the introductory paragraph on these newsletters:

Reduce Maintenance Cost with Reliability Strategies
Should you implement RCM?

Travel industry

- How to travel on a budget: 12 ways to save | Published on Chase The Feeling
- Fall in love with Florence and Pisa in 2 days | Published on Chase the Feeling

Social Media

Más allá del estadio: las redes como herramienta de ‘engagement’ en el fútbol | Published on the PR blog of the Autonomous University of Barcelona

Digital Campaigns

Campañas digitales de cumpleaños: estrategia de las ONGs como respuesta a las donaciones estacionales | Published on the PR blog of the Autonomous University of Barcelona


- De influencers a embajadores de marca  | Published on the PR blog of the Autonomous University of Barcelona


-  Benefits of learning a new language | Published on Chase the Feeling

Work With Me

Contact Me
Krystel Sierra
(787) 556-3079
San Juan, PR