HIGHLIGHTS OF QUALIFICATIONS Experienced software engineering professional with a proven record of success in software design, development, and integration. Consistently recognized by management and peers for designing, coding, testing and installing high-quality software applications. Successfully apply new technologies and techniques to improve existing systems and processes. Strong project leadership, planning, and communication skills. Strong Quality Assurance background. Languages: C++, C#, Visual Basic, Python, QT, Perl, HTML, COBOL Databases: Microsoft SQL Server, Microsoft Access Tools: SQL Server Management Studio, Git, Gerrit, JIRA, Microsoft Visual SourceSafe, Borland StarTeam Methodologies: Agile, Scrum Hardware/Platforms: Raspberry Pi, ESP32, FreeRTOS, Android, IoT, MQTT, Arduino

I'm a creative technology professional with over 20 years of experience in writing, media production, and software engineering. My multi-faceted career includes extensive experience as a technology writer, software engineer, technical writer, and content manager. I also have over 25 years experience as a record company owner as well as a musician that maintains a worldwide reputation and sales. Featured Accomplishments * Publisher, editor, and lead writer for TabMuse, an online resource for music technology. * Former editor, lead writer, and social media manager for Bandwidth Place, covering the Internet and telecommunications industry. * Significant technology article and copywriting experience for a wide range of clients including IBM, Verizon, VMware, Betica Technology Group, Cincinnati Bell, and more. Primarily focused on the areas of software development, the Cloud, Agile/DevOps, data, AI, and mobile. A strong specialization in technology staffing, startups/entrepreneurial, and music technology. * Former topic editor in mobile technology and video gaming for a high-traffic website. * Producer, recording engineer, composer, performer, and business manager for nearly 30 releases by Quarkspace and other groups.

I build practical business software that replaces spreadsheets, disconnected tools, manual processes, and operational chaos. I help businesses develop complete systems for sales, inventory, customers, bookings, deliveries, administration, and real-time management. My services include: • Custom business management systems • POS, sales, inventory, purchasing, and expense tracking • CRM and customer follow-up platforms • Admin dashboards and real-time analytics • Booking and appointment systems • Ecommerce and delivery applications • Workflow automation using APIs, AI, and WhatsApp • Legacy application modernization and integrations I can manage the complete product process: understanding your business, planning the solution, designing the user experience, developing the platform, deploying it, and providing continued improvements. Main technology stack: Next.js, React, TypeScript, JavaScript, Supabase, PostgreSQL, Node.js, PHP, CakePHP, REST APIs, Vercel, Docker, Git, Python, and SQL. Why work with me? • 100% Job Success on Upwork • $2K+ earned with verified client experience • Enterprise software experience in banking environments • Experience creating real systems for local businesses • Native Spanish and verified fluent English • Clear communication and business-focused development I am also the founder of Potenciapp, a software studio focused on helping businesses digitize their operations through custom systems, web applications, ecommerce, automation, and artificial intelligence. I do not just build attractive websites. I create software that helps businesses organize their operations, reduce mistakes, improve customer service, and understand their real numbers. Tell me which process is currently slowing down your business, and I will help you turn it into a clear and scalable software solution.

• 𝗠𝘆 𝘀𝘁𝗿𝗲𝗻𝗴𝘁𝗵𝘀 𝘄𝗵𝗶𝗰𝗵 𝗴𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲 𝗬𝗼𝘂𝗿 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 • 𝖶𝗂𝗑, 𝖶𝗈𝗋𝖽𝗉𝗋𝖾𝗌𝗌, 𝖬𝖺𝗀𝖾𝗇𝗍𝗈2, 𝖲𝗁𝗈𝗉𝗂𝖿𝗒, 𝖮𝗉𝖾𝗇𝖢𝖺𝗋𝗍, 𝖯𝗋𝖾𝗌𝗍𝖺𝖲𝗁𝗈𝗉 • 𝗘𝘅𝗽𝗲𝗿𝘁 𝗂𝗇 𝖯𝖧𝖯, 𝖠𝖩𝖠𝖷, 𝖧𝖳𝖬𝖫, 𝖬𝗒𝖲𝖰𝖫 • 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝘁 𝖤𝗇𝗀𝗅𝗂𝗌𝗁; 𝗐𝗋𝗂𝗍𝗍𝖾𝗇 & 𝗌𝗉𝗈𝗄𝖾𝗇 • 𝖶𝗂𝗅𝗅𝗂𝗇𝗀 𝗍𝗈 𝗍𝖺𝗄𝖾 𝗈𝗇 𝗰𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲𝘀 𝖺𝗇𝖽 • 𝖳𝗁𝗂𝗇𝗄 𝗈𝗎𝗍-𝗈𝖿-𝗍𝗁𝖾-𝖻𝗈𝗑 𝗍𝗈 • 𝖬𝖾𝖾𝗍 𝘆𝗼𝘂𝗿 𝖻𝗎𝗌𝗂𝗇𝖾𝗌𝗌 𝗈𝖻𝗃𝖾𝖼𝗍𝗂𝗏𝖾𝗌 • 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 • 100% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 • 𝖮𝗏𝖾𝗋 350 𝗉𝗋𝗈𝗃𝖾𝖼𝗍𝗌 𝗈𝗇 𝖴𝗉𝗐𝗈𝗋𝗄 •

Struggling to get found online and drive high-quality traffic, consistent rankings, and sales from your website or YouTube channel? I help businesses optimise their websites and YouTube channels with clear, data-driven SEO and CRO strategies that get results. I’m Tanya, a freelance SEO, CRO, and data consultant with an MSc in Data Science and 15+ years experience helping businesses improve search visibility, increase conversions, and drive growth. I focus on what works - actionable improvements backed by data analysis. Here’s how I can help: 1) SEO and YouTube SEO Services: - Technical SEO audits and implementation plans - Keyword research and optimisation - Content audits and strategy - SEO copywriting and guidelines - Internal link audits and backlink strategies - Full SEO strategies tailored to your business - YouTube audits, optimisation and keyword targeting Conversion Rate Optimisation and Marketing Services: - CRO audits and testing - Website and social media audits - CRM and email marketing automation - Campaign tracking, data analysis and insights - Marketing strategy and test and learn implementation - Editing or proofreading (UK or US English) Let’s talk if: - You’re tired of “template” SEO that doesn’t move the needle - You want expert help getting found online and turning traffic into customers - You need clear reporting, real insight, and someone who knows what they’re doing Message me now and let’s discuss how I can support your business goals.

I have over seven years of experience in software testing and project management, working with various platforms, technologies, and languages. My core competencies include functional testing, manual testing, exploratory testing, regression testing, user acceptance testing, cross-browser/platform testing, and mobile testing for iOS, Android, and Huawei devices. I also have experience in working in a diverse work environment when I'm the sole QA. My mission is to deliver reliable and user-friendly products that meet the needs and expectations of the customers and the company.

Process mapping expert (Visio, Lucidchart, Google Draw, draw.io and yEd Graph Editor) with over 20 years of business experience in a broad array of roles: process management, user requirements gathering, systems and database design, and insurance claims analysis, among others.

At 19, I left a small town in the Brazilian Amazon to code for companies in Greece. No fluent English. No connections. Just the conviction that good work speaks for itself. By 20, I had already shipped production code in 5 countries (Brazil, Greece, USA, Peru, Philippines) — building everything from eBay management dashboards to tax systems processing millions of telecom transactions per month. Today, at 21, I work as a Full Stack Developer Analyst at Global Hitss/Grupo Easy, developing mission-critical billing and tax document systems for Claro and Embratel. My work spans the entire development lifecycle: business analysis and requirements gathering, backend development in Natural One/Mainframe, and frontend development in JSP with CICS as middleware. I manage approximately 8 simultaneous projects involving telecom billing, regulatory compliance (Anatel), and tax document processing — systems that impact millions of users. What I bring to the table: → Mastery of the Vue.js ecosystem (Vue 3, Nuxt.js, Pinia, Vuetify) → Large-scale enterprise systems (Java/JSP, COBOL, Natural One, IBM Mainframe) → TypeScript, JavaScript, REST APIs, Spring Boot → Business analysis, requirements gathering, and full project ownership → Multicultural remote collaboration across 4 different time zones → Certified Agile/Scrum methodology Harvard CS50 certified. Scrum certified. Always learning. Previously: Frontend Developer at KNN Idiomas (one of the largest language school networks in Latin America) and at Hellenic Technologies (Athens, Greece — eBay product management dashboard). Open to international opportunities, collaborations, and conversations about Vue.js, enterprise systems, or full-stack development.

Please note: I am currently focusing on selected projects and long-term local collaborations. Most recent 4 year project focused on Laravel, Livewire, Filament and Tailwind CSS. I am a software developer with a Bachelor of Science majoring in Mathematics (with distinction), Applied Mathematics and Physics from the University of Cape Town. I also hold a Postgraduate Certificate in Education (Cum Laude) from the University of South Africa. I have 25 years’ experience in a wide range of technologies ranging from main frame computing, desktop applications, multimedia to web applications. Since 2016 I have worked remotely with great success. Having had several years experience analysing and managing requirements and documentation as part of my responsibilities in a mid-sized German corporation as well as several years’ experience as a teacher, I pride myself on my abilities to comprehend and communicate complex abstract problems. I am at my best in situations where there is a greater focus on the analysis and problem solving itself than on the technologies to be employed: I can master new technologies relatively easily as they are required to solve a task. For the past 15+ years I have worked as a web developer. After several years focusing on working with the Silverstripe framework I am now shifting back to working ideally with Laravel - Next.js - TailwindCss. I prefer to focus on implementing the functionality (whether backend or frontend) to the frontend UI design aspects. My experience has included: - 6+ years developing and maintaining a complex CRM built upon the Silverstripe CMS / framework: other technologies implemented included building forms using TypeForms, generating PDF reports using wkhtmltopdf and PhantomJS, embedding interactive charts using Fusion Charts and using the Straker API to manage translations - Several years working with another large Silverstripe site adding Vue.js and multiple Stripe subscription functionalities in particular - A complex Vue SPA designed for employee competency assessments - Work on two projects with Vue.js and AWS Amplify. Also used in these: TailwindCss, GraphQl and Gridsome - I have been getting to know Next.js - React and would like to deepen my experience in this area I am well-versed in standard technologies such as Html, MySql, CSS, jQuery, ES6. I enjoy working independently and fulfilling the client’s expectations without requiring micro-management, getting on with the job and communicating with the client only when absolutely necessary. With tech trends changing every 6 months, developers will usually have to fill in some gaps in knowledge and experience when embarking on a new project: I treat the distinction between my own study time and paid work time strictly, though some clients allow some research to be included as paid when dealing with technologies that are new to the team. I expect to spend an additional 20% of my time in unpaid study. I look forward to working with your team in the near future!

25+ years, as a professional developer/analyst, building business applications for the Greek and foreign market for the most popular platforms (Dos, Windows, Internet/Intranets, IBM AS/400). * Understanding of business application * Analysis and Problem Solving * Desktop Applications Design and Implementation * Multi-tier and Client/Server Solutions * Database and Domain Driven Application Design * RDBMS design SQL Server, ADO.NET, Entity Framework, Azure, Interbase/Firebird * Delphi 7-DX10, Component/Framework Design, 3rd party (Spring4D, DevExpress, etc) * Results Oriented