Hire the Best Software Localization Freelancers
in Spain

Hello, my name is Sofía and I will gladly help you shape, create or execute the localization project you have in mind! With a background in project management, localization, and digital operations, I am a full-time, dedicated freelancer expert. Multi-talented and adaptable professional with an MBA + studying towards Project Management Professional (PMP)®. My expertise spans across digital marketing, e-learning, EdTech, finance and crypto, content development & digital media, allowing me to bridge the gap between strategy and execution. My ability to combine strategic thinking with hands-on execution allows me to deliver solutions that are not only efficient but also sustainable in the long run. If your business needs structured localization project execution, operational support, or expert language services, I will be happy to have a chat! Here is a clear view of the different fields I work on and the type of projects I can help you with: 💼 -- Project Management & Coordination -- I help businesses manage their localization and translation projects, structure their processes and optimize workflows to successfully deliver projects. My role is to ensure that all moving parts come together seamlessly so that projects stay on track. Over the years, I have worked with digital agencies and fast-growing startups, ensuring that projects are completed on time, within budget, and according to business goals. 🔹 How? By defining clear processes through Agile methodologies, establishing workflow automations, managing timelines, and aligning teams through ClickUp, Asana, Notion, Trello, etc. I focus on clarity, structure, and measurable results. Studying towards Project Management Professional (PMP)®. 🖥️ -- Executive Assistant -- I assist businesses with everyday business tasks and operational support, reducing manual workload and ensuring smooth day-to-day operations. From setting up ClickUp or Monday.com automations to handling administrative tasks such as inbox management, resourcing, reporting, and scheduling, I help businesses become more efficient. 🔹 What can I do? - Team Coordination - Inbox & Email Management - Calendar & Scheduling - Document Management - Meeting Support - Data Entry & Research - Social Media Assistance - Client & Vendor Communication - Travel & Event Planning - Content Creation, Formatting & Proofreading - Support with Financial Tasks - CRM, ERP, CMS Management - Customer Support 🌍 -- Translation & Localization -- I provide expert English and German to Spanish translation services, ensuring that businesses can reach and engage international audiences. I focus on cultural adaptation, SEO optimization, and brand consistency. High-quality translations for websites, platforms, mobile apps, online shops, SEO product descriptions, marketing campaigns, technical manuals, etc. I can use any platform or plugin that you need for your translations (CAT Tools, WMPL, Weglot, MemoQ, Trados... or directly into your Shopify or CMS platform!). Digital Marketing, Content Marketing, Growth Design and SEO certified by Hubspot. Professional Member of ASETRAD (Spanish Professional Association of Translators, Proofreaders and Interpreters)

Translator (English to native Spanish) and (Italian to native Spanish) + Professional Spanish Proofreader/Copywriter + Localization Specialist, with a solid and multidisciplinary academic background. 👩‍🎓 Bachelor's Degree in Journalism and Communications (Spanish). 👩‍🎓 Master in Marketing and Digital Communication. 👩‍🎓 Master's Degree: International Diploma in Spanish Language and Latin American Literature (with Honorable Mention). 👩‍🎓 Master in Criminology and Forensic Sciences. (gives me broad knowledge in science, law and criminal psychology). 👩‍🎓 International Diploma of Spanish (DIE). Accreditation to evaluate Spanish as a second language. 👩‍🎓 Digital Photography and Video Training Course (I sell and shoot landscape, travel and portrait photography). 👩‍🎓 Excellent command of multiple tools such as MS Word, Excel, Adobe, Lightroom, Canvas, InDesign... Native speaker of Spanish from SPAIN, with a high working knowledge of Latin American Spanish after having lived +4 years in the USA. ENGLISH C1 user. WHAT I CAN OFFER YOU. DISCOVER MY SERVICES👀👇: ▪️ Localization in all types of media (software, ▪️ Marketing materials (landing pages, ads, keywords, SEO, newsletters). ▪️ Translation, editing and proofreading of fiction and non-fiction books (all genres, children's, adult, juvenile). ▪️ Technical documentation (user guides, manuals, brochures, catalogs). ▪️ Audiovisual and social media content (Facebook, Twitter, Youtube, LinkedIn, Instagram). ▪️ E-commerce (Amazon ads, Amazon and eBay product descriptions). ▪️ SEO content creation and optimization (travel, pets, products). ▪️ Education (courses, online training, e-learning, diplomas, tutorials). ▪️ Creation of articles in Spanish (native speaker). ▪️ Automatic translation (MTPE). ▪️ Subtitling and transcription (audio and video) and Proof Listening (Spanish). ▪️ I sell a wide catalog of travel photography (Cuba, Denmark, Spain, Las Vegas, Grand Canyon, Paris, Naples, Rome...). ▪️ Help / Guidance in the creation of content for Spanish-English teaching material. ▪️ Voiceover and Voice Talent in Spanish for YouTube videos, Teaching Spanish to Foreigners Audios, and Ads or Commercials. MY HARD SKILLS: ✔️ More than 8 years of experience in the industry. ✔️ Native speaker of Spanish / Spanish from Spain / Neutral Spanish ✔️ Extensive experience working with publishers, writers and companies. ✔️ Guaranteed response within 24 hours. ✔️ Impeccable command of Spanish grammar, spelling, and syntax. ✔️ User C1 of English and B2 of Italian ✔️ Excellent understanding of cultural nuances and localization in my three working languages. ✔️ Experienced in working with national (Spain) and international (Asia, America, Europe) clients. I have lived almost 9 years in Dublin, Italy and USA, which has given me a wide experience working with many different teams. ✔️ Thorough attention to detail ✔️ Full-time freelancer (I can adapt to work for days, weeks, months, and quarters) ✔️ Knowledge of Content and Digital Marketing Supports (SEO, Facebook, Google and LinkedIn Ads, Social Profiles). ✔️ Good copywriting and transcreation skills. ✔️ Ability to work under tight deadlines and autonomously. ✔️ Accept fixed milestones or manual hourly contracts. ✔️ Open to short, medium and long-term contracts. ✔️Edito MS Word documents with track changes function, in Google Sheets and PDF files with Adobe highlighting/noting function. But I also adapt to other formats! I am a fast learner! MY SOFT SKILLS: ✔️ Communication ✔️ Ability to work under pressure ✔️ Time Management ✔️ Decision Making ✔️ Adaptability ✔️ Teamwork ✔️Creativity ✔️ Hard worker ✔️Precise ARE YOU INTERESTED IN...? If you want quality and manual service at a fair price, please CONTACT ME 📩! I'm looking forward to working on your project!!!

14+ years of delivering linguistic precision for global industry leaders. As a member of the National Association of Graduates in Translation and Interpreting (CONALTI, Venezuela) (member association of the International Federation of Translators (FIT/IFT)), I bridge the communication gap between complex technical sectors and the Spanish-speaking world. My approach combines a deep architectural background with cutting-edge AI-integrated workflows to deliver translations that are not only accurate but culturally and strategically impactful. Why partner with me? I don’t just translate words; I localize experiences and secure compliance. My expertise is built on three high-stakes pillars: EdTech & Gamification: During my tenure at Duolingo and Amino Apps, I localized entire app ecosystems and curricula for millions of users, specializing in Linguistic Quality Assurance (LQA), gender-agreement audits, and cross-dialectal adaptation (Spanish MX, AR, ES, CO, VE). Fintech, Crypto & Web3: At Deriv and through Contentoo, I specialized in high-complexity trading platforms, blockchain terminology, and AML/Compliance content, achieving a consistent 100% quality score. Legal, Healthcare & Public Sector: Long-term collaborator for The Spanish Group and Baystate Interpreters, managing sensitive vital records (USCIS/Embassy standards), IEPs, and social housing documentation with strict confidentiality (HIPAA/FERPA-compliant). Technical Mastery: I leverage a robust CAT Tool stack (MemoQ, Phrase, SmartCat, Crowdin, Transifex) and Generative AI (Prompt Engineering) to optimize turnaround times while maintaining the highest stylistic integrity. Core Specialized Areas: Engineering & AEC: 11-year tenure as the lead translator for the Advanced Building Skins International Conference. iGaming & Marketing: SEO-driven localization and transcreation for B2B and B2C global campaigns. Digital Excellence: Expert-level LQA, functional bug reporting, and subtitle synchronization. Let's connect if you are looking for a proactive, tech-savvy linguist who understands that in localization, precision is the ultimate ROI.

Hello! My name is Carlos, a native Spanish speaker from Spain. I am graduated in Business Administration, with wide experience in the SAP consultancy field. At the end of 2019, I worked as a translator in South Africa for 3 months for an IT consultancy corporation and I decided to become a freelance in the field as I liked it and everything worked perfectly. I still work for them when they need translation services. I lived in Australia for 2 full years, travelling and working full-time. During 2018 and 2019 I've worked as a counsellor for American teenagers in Service-learning trips, achieving a bilingual level in English. I will accurately translate and localize any kind of text from English to Spanish with perfect grammar and spelling, ensuring a high-quality translation. I offer you an excellent translation service, fast delivery, and economical price. All can translate manually, or I can use automated translations services like DeepL, always reviewing and proofreading the texts. This ensures a high quality level at a fair price and very quick turnaround. The document formatting is also included. I have done some writing and copywriting courses, so I can perfectly localize texts to make them sound natural in Spanish. I also have SEO knowledge, so I will rewrite the necessary parts to rank high in Google if necessary. Furthermore, I use WordPress and I have translated websites using Weglot and WPML, so I can help you with your website translation too. I have worked with lokalise and other translation apps. Since the beginning of 2024 I started to proofread texts working as an editor for other translator and AI translations. Please, don't hesitate to contact me If you have any other questions.

You offer a fantastic product or service that you would like to promote globally? You want content that stands out, engages your clients, and gets you results? That’s where I come in. ⭐ Over 10 years of Upwork experience ⭐ CERTIFIED in PPC by Google Ads ⭐ CERTIFIED in Content & Inbound Marketing by HubSpot ⭐ TOP-RATED FREELANCER with over 95% success rate since 2015 ⭐ 🇪🇸 (NATIVE) 🇺🇸 (FLUENT) ⭐ Global perspective (Lived in SPAIN, DENMARK, UK, FINLAND) ⭐ The only Spanish freelance translator / writer on the platform with university-level background in marketing, engineering, and finance ===== WHAT MY CLIENTS SAY ===== “This was my first time working with Sergio, and it was a very positive experience. He translated our sales presentation from English into European Spanish, as requested, and did additional corrections and options, when requested from my colleague, with no break in his stride. He even offered to check the final look of the Spanish translation to make sure it reached the best level of quality. As a Spanish translator, his communication and adherence to deadlines are top notch! I will be using Sergio’s translation services for further work with us.” – Mirjana Ilisinovic of Creatriks d.o.o. “We hired Sergio as an English to Spanish translator. He not only did his job well, but also suggested improvements for the rest of our existing app store description. Very engaged and supportive. Recommended! Will be in touch with him for future projects.” – Ana Timofeeva of Sphere Identity “Excellent communication, and Sergio also helped us pinpoint a bug in the app, so he went beyond the scope of his role as Spanish translator and helped us a lot. Outstanding work! – Mile Rosu of Pressinfra SRL ===== WHAT I CAN DO FOR YOU ===== Taken straight from my Upwork profile, the testimonials above prove that I deliver. I will make your product or business shine—on time and totally stress-free! A Spanish native with over 10 years experience in translation, proofreading, and copywriting in a variety of sectors, including marketing, engineering, and finance, I am perfectly fluent in English (US/UK). Here's how I can help you: ✓ Expert technical translation / content creation and software documentation for developers and users. ⇒ Bridge the gap between technical knowledge and layman's terms ✓ Result-driven translation and localization of your websites, apps, and software, so you get perfectly localized and formatted strings. ⇒ Save time with someone who understands UX constraints and code ✓ Engaging translation and localization of your texts for your target audience, while retaining their original style and meaning. ⇒ Make profit globally ✓ SEO friendly content creation using carefully crafted words to engage, connect with, and convince your audience—visitors to your website, prospects scanning your landing page or reading your sales letter or email ⇒ Better conversion rates Let me put my enthusiasm and expertise to your service! ===== WHAT I OFFER ===== ⇨ CONTENT TRANSLATION, LOCALIZATION, AND OPTIMIZATION o Proofreading / Editing and Optimization o General Translation o Research Paper / White Paper / Technical Translation / Software Documentation o Website, App, and Software translation and localization ⇨ CONTENT CREATION o Software / technical documentation (experience in C, C++, Java, Swift, PHP, JavaScript, SQL, C#) o Tutorials and How-to Guides o Blog and article writing (project management, software development, languages, lifestyle, health, and fitness) o UX writing o Copywriting Don't see what you're looking for? Reach out and ask! I can provide you with content that will make your product or service shine in Spanish or English! With each package, you also get: ✓ Quality content, thoroughly proofread and optimized ✓ Attention to details ✓ Full commitment—I’m here to help you succeed! ✓ Always on time ===== LET'S DO GREAT THINGS TOGETHER ! ===== If you have the same standards of excellence for your business as I have for mine, and you are fully aware of what great quality content can bring to your business, I’m sure we’d make a great team! Click the green “Invite” or “Hire now” button at the top of the page, and let’s discuss your project!

Professional and Certified Native Spanish Technical Translator + Proofreader/Copywriter + Localization Expert for 14+ years, with a strong academic background. 🎓 BA in Translation and Interpreting (English-Spanish) 🎓 MA in Software Translation, Web/App Localization, and Multimedia Products 🎓 Course on Spanish Orthography and Grammar for Translators 🎓 Certificate of Proficiency in English 🎓 MEd in Teacher Training in Secondary Education and Languages (ENGLISH) 🎓 MBA in Foreign Trade 🙋 Spanish native speaker, born and grown up in SPAIN | Bilingual user of ENGLISH SERVICES I OFFER: 📌 Website/App localization, IT and Software localization 📌 Marketing materials (landing pages, banner ads, keywords, SEO, newsletters) 📌 Economic and Financial translation (FinTech, Stock Market, blockchain, cryptocurrencies) 📌 Technical documentation (user guides, manuals, brochures, handbooks, leaflets) 📌 Audiovisual and online content (Facebook, Twitter, Youtube, LinkedIn, Instagram) 📌 E-commerce (Amazon listings, eBay products) 📌 Education (online training, e-learning, diplomas, academic transcripts, tutorials) 📌 SEO content creation and optimization (product pages, blog posts, landings) 📌 Machine translation post-editing (MTPE) 📌 Subtitles, transcriptions, and captions (audio and video) 📌 Artificial Intelligence / AI - Machine Learning (ML) (AI prompt creation and adaptation, AI response validation, AI prompt translations, prompt recording in Spanish, Text-to-speech) MY STRENGTHS INCLUDE: ✅ Full-time freelance translator ✅ 14+ years of experience in the field ✅ European Spanish (Castillian) / Spanish from Spain / Neutral Spanish native speaker ✅ Impeccable command of Spanish grammar, spelling and syntax ✅ Bilingual user of English ✅ Excellent understanding of cultural nuances in both languages ✅ Eagle eye for detail ✅ Good level of SEO and online content optimization ✅ Great transcreation and copywriting skills ✅ Ability to work under tight deadlines and autonomously MY TECH TOOLBOX: ◽ CAT TOOLS & ONLINE ENVIRONMENTS → Trados, Phrase, Memsource, Smartcat, ATMS, MemoQ, POEditor, Poedit, Notepad++, WordPress, Transifex, WebTranslateIt, WPML, Polylang, Loco Translate, LCX, GlobalLink, Smartling, Lokalise, Crowdin, Trello, Shopify Translate & Adapt ◽ Adobe Acrobat PDF Editor ◽ COMMUNICATION → Slack, Google Meet, Skype, WhatsApp My main goal is CLIENT SATISFACTION and that is why I am 100% committed to maintaining my 100% Job Success. I strongly believe that offering high quality at a reasonable price is POSSIBLE. ⚖️ Sounds good? INVITE ME TO YOUR PROJECT! 🚀 ---------------------------------------------------------------------------------------------------------------------- 🇪🇸 Traductora profesional (inglés a español nativo), Copywriter/Revisora y especialista en Localización, con una sólida formación académica 🎓 Licenciatura en Traducción e Interpretación (inglés-español) 🎓 Máster en Traducción y Nuevas Tecnologías: Traducción de Software y Productos Multimedia 🎓 Curso de Ortografía y Gramática del Español para Traductores 🎓 Certificate of Proficiency in English 🎓 Máster Universitario de Enseñanza Secundaria Obligatoria y Bachillerato, FP y Enseñanza de Idiomas (INGLÉS) 🎓 MBA en Comercio Exterior 🙋 Hablante nativa de español de ESPAÑA | Usuaria bilingüe de INGLÉS MIS SERVICIOS: 📌 Localización de software, sitios web y aplicaciones móviles 📌 Materiales de marketing (landing pages, anuncios, palabras clave, SEO, newsletters) 📌 Traducción económica y financiera (fintech, bolsa de valores, blockchain, criptomonedas) 📌 Documentación técnica (guías de usuario, manuales, folletos, catálogos) 📌 Contenido audiovisual y para redes sociales (Facebook, Twitter, Youtube, LinkedIn, Instagram) 📌 Educación (cursos, formación en línea, e-learning, diplomas, expedientes académicos, tutoriales) 📌 E-commerce (anuncios de Amazon, productos de eBay) 📌 Creación y optimización de contenidos para SEO 📌 Posedición de traducción automática (MTPE) 📌 Subtítulos y transcripciones (audio y video) 📌 IA - Aprendizaje automático (ML) (creación de prompts para IA, adaptación de prompts para IA, validación de respuestas de IA, traducción de prompts para IA, grabación de prompts en español, Text-to-speech) MIS FORTALEZAS: ✅ Traductora autónoma a jornada completa ✅ +14 años de experiencia en el sector ✅ Hablante nativa de castellano / español de España / español neutro ✅ Impecable dominio de la gramática, la ortografía y la sintaxis españolas ✅ Usuaria bilingüe de inglés ✅ Excelente comprensión de los matices culturales en mis dos idiomas de trabajo ✅ Atención minuciosa para los detalles ✅ Conocimientos de SEO y optimización de contenido en línea ✅ Buenas habilidades de copywriting y transcreación ✅ Capacidad para trabajar bajo plazos ajustados y de forma autónoma Creo firmemente que es POSIBLE ofrecer muy buena calidad a un precio razonable. ⚖️ Si te ha gustado lo que has leído... ¡INVÍTAME A TU PROYECTO! 🚀