Sure, AI can put words together. But when your reputation—or your immigration case—is on the line, you need more than correct grammar. You need clarity, tone, and purpose. I’m an English to Portuguese translator with over 20 years of experience turning ideas into fluent, confident communication that works. I currently offer professional services in: 
- Translation,
- Revision,
- Proofreading (light revision),
- Copywriting, and
- Interpretation (on a limited basis).
Machine Translation vs. Human Translation
These days, people are talking a lot about machine translation (MT)—and for good reason. It’s quick, easy to use, and can help you understand a foreign language in seconds. Whether you’re reading a website or chatting with someone from another country, tools like Google Translate can be super handy. But while they’re great for simple tasks, they can still make mistakes, especially with slang, tone, or more formal documents. So, while machine translation is exciting, it’s not perfect—sometimes you still need a human touch. Wanna see it for yourself? Copy and paste this sentence and translate it into any language using the automatic translator below: “I wanted to see if I like the new font, so I typed: The quick brown fox jumps over the lazy dog.”
Once you’re done tanslating, click here to unveil the translation blunder.
Experience You Can Trust
That’s where I come in. As advanced as machine translation has become, when it comes to accuracy, nuance, and trust, nothing beats a human translator. I specialize in Portuguese to English and English to Portuguese translation, delivering high-quality work across a variety of fields:
- Immigration & Citizenship – Certified translation of birth certificates, marriage certificates, property deeds etc. for USCIS.
- Business & Legal Translation – Contracts, patents, and corporate communications.
- Medical & Technical Translation – Precise, industry-specific terminology.
- Website & Marketing Localization – Culturally adapted content for global audiences.
- Literary & Academic Translation Services – Books, research papers, and more.
Translation by Document Type:
- Academic Transcript Translation
- Birth Certificate Translation
- Diploma Translation
- Document Translation Services
- Legal Contract Translation
- Marriage Certificate Translation
Professional Credentials
✅ Master of Arts degree in English
✅ Bachelor of Arts in Translation and Interpreting
✅ Author of an English-Portuguese dictionary of idioms
✅ Published translator of six books, two of them poetry
✅ Native speaker of Brazilian Portuguese, fully bilingual
✅ Proven track record of delivering accurate, culturally adapted translations for businesses, organizations, and people in the U.S. and Brazil
>> Check out some samples of my work.
Quality Assurance
As a certified Portuguese translator, I take pride in delivering work that meets professional standards and exceeds client expectations—with a 100% satisfaction guarantee! I promise to deliver all work on time and keep your information private. If you have any questions, feel free to email me or book an appointment to discuss your project.
Explore my website and learn more about my language services.
Thank you for visiting MasterPortugueseTranslator.com, your premier provider of Portuguese translation services.
- Contact me
- Get a free quote
- Place an order
- Learn about my dictionary project
- Follow me on LinkedIn
- Follow me on Instagram
- Follow me in Author Central (Amazon)
- Check out my YouTube channel
Testimonials about Master Portuguese Translator
“Oliver worked with us on a large project for a major client, and demonstrated outstanding professional quality, and a willingness to be flexible where the job necessitated it.” – Verboo, UK
“… excellent and consummately professional.” – Joseph Duarte, Attorney-at-Law
★★★ More testimonials from other satisfied clients
English to Portuguese translator available coast to coast
English to Portuguese Translator in California
Certified Portuguese to English translation services available throughout California State, including Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, and Anaheim.
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Portuguese Language Translator in Connecticut
Certified Portuguese to English translation services available throughout Connecticut State, including Bridgeport, Stamford, New Haven, Hartford, and Waterbury.
Pictured (right): Q Bridge in New Haven Illuminated Red, White, and Blue, by Dannel Malloy, CC BY 2.0
Certified Portuguese Translator in Florida
Certified Portuguese to English translation services available throughout Florida State, including Miami, Orlando, Tampa, Jacksonville, and St. Petersburg.
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English to Portuguese Translator in Hawaii
Certified Portuguese to English translation services available throughout Hawaii State, including Honolulu, East Honolulu, Hilo, Pearl City, and Waipahu.
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Portuguese Language Translator in Massachusetts
Certified Portuguese to English translation services available throughout Messachusetts State, including Boston, Worcester, Springfield, Cambridge, and Lowell.
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Certified Portuguese Translator in New Jersey
Certified Portuguese to English translation services available throughout New Jersey State, including Newark, Jersey City, Paterson, Elizabeth, and Trenton.
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English to Portuguese Translator in New York
Certified Portuguese to English translation services available throughout New York State, including New York City, Buffalo, Rochester, Yonkers, Syracuse, Albany, New Rochelle, Mount Vernon, Schenectady, Utica, and White Plains.
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Portuguese Language Translator in Pennsylvania
Certified Portuguese to English translation services available throughout Pennsylvania State, including Philadelphia, Pittsburgh, Allentown, Reading, and Erie.
Pictured (right): City Hall Philadelphia, by Dave Z – Flickr, CC BY 2.0
Certified Portuguese Translator in Rhode Island
Certified Portuguese to English translation services available throughout Rhode Island State, including Providence, Cranston, Warwick, Pawtucket, and East Providence.
Pictured (right): Rhode Island State House, courtesy of Kumar Appaiah – Flickr, CC BY-SA 2.0
English to Portuguese Translator in Texas
Certified Portuguese to English translation services available throughout Texas State, including Houston, San Antonio, Dallas, Austin, Fort Worth, and El Paso.
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Portuguese Language Translator in Washington
Certified Portuguese to English translation services available throughout Washington State, including Seattle, Spokane, Tacoma, Vancouver, and Bellevue.
Pictured (right): City of Seattle (USA), courtesy of Freepik