Hire the Best Web Application Developers
in Venezuela

I specialize in bridging the gap between raw industrial data and actionable business intelligence. With over 15 years of experience in the energy sector—handling mission-critical geophysical applications and large-scale data governance—I provide technical solutions that CMS-focused developers simply cannot offer. What I bring to your project: Data Integrity & Quality: I don't just move data; I ensure it adheres to professional standards (DAMA-DMBOOK). I specialize in auditing, normalizing, and cleaning complex datasets that fuel your decision-making. Industrial Automation: I build custom logic, scripts, and workflows (PHP, SQL, C#, Java) to automate manual bottlenecks, reducing operational errors and increasing team efficiency. Legacy Integration: I excel at integrating legacy systems with modern data stacks, ensuring your infrastructure is future-proof without replacing everything you own. I am an engineer, not just a coder. I focus on long-term data stability, maintainability, and building systems that perform under pressure. If you are looking for an expert who understands the complexities of industrial data infrastructure and can turn fragmented data into a scalable asset, let’s talk.

✅ 10 Years on Upwork ✅ 100% Client Recommendation ✅ +4500 Hours ✅ Full Stack .NET Software Engineer Sql Server AZURE 📌📌 South America Location (LATAM) ET ,CT ,MT ,PT TIME USA ,+ - 2 hours Time 📌📌 My Technical Skills include : - Legacy Migrations - AZURE SQL SERVER - ASP WebForms ASP MVC ASP - NET CORE Web API - C# - SQL SERVER SSIS SSRS, - HTML5, CSS3, JavaScript, jQuery, Angular, React, Vue -T-SQL, SSRS, and SSIS in a Microsoft SQL Server environment. -Azure Data Factory (ADF). Focused primarily on backend and API development over the past couple of years

Full Stack System Engineer with 28 years of experience developing custom solutions for Telecom, ECommerce, Tourism, Booking, Marketing & Petroleum companies in multi-user, high-availability, and web environments. Extensive knowledge in PHP, Javascript, WordPress/WooCommerce, API integrations, also Industrial Automation, IoT, and hardware control including Industrial protocols like ModBus and MQTT Expert in payment gateways integrations: NMI, CCBill, PayFac, BulletProof Checkout, Paypal, Authorize .NET, and many others ##CERTIFICATIONS * Microsoft Certified Professional. * CMM certified in Software Requirements Management, Testing, Software Configuration Management & Software Quality Assurance by the Software Engineering Institute (SEI) and Carnegie Mellon University. * SAP BusinessWarehouse certified. * Microsoft 5 Stars developer #LANGUAGES * Spanish (native) & English as a second language (level B2) . I am learning Italian (level A1) #SECURITY * All work is strictly confidential, and code is delivered, tested & documented. Available to work on a remote desktop. * Software developed using the latest security practices/patches. * Available to sign any NDA agreement * Used to work in high-security environments where data security and privacy are the most valuable assets. * Wide experience in data encryption integrated into software solutions. ## EXPERIENCE Full stack Web developer: PHP, .NET & Jquery/Javascript/Vue (latest 15 years) Developed solutions for Fintech including antifraud solutions , integrations with eCommerce tools like WooCommerce, WordPress, Shopify and OpenCart. Backoffice development: Data Architect, System Integrator and developer: PHP, Vb.NET, C#, API integrations, JSON/XML/AJAX (since 1996) Microcontrollers C++: Arduino / PLC / ESP32 / ESP8266 and any Expressif hardware like TTGO, Heltec (since 2016) Industrial automation: sensors data logging, HMI & software control, RS485 / RS232 / Modbus Software testings (Certified CMM level 2 on testings) , large PHP Selenium experience .Net developer (Vb.Net, C# including .NET framework/.NET Core, WPF, and XAML) (since 1996 - Microsoft Certified 5 stars developer) Database developer: SQL Server, MariaDB & MySQL (also worked with Firebird, SQLite and recently Cassandra), deployment, development (queries, indexing, triggers, store procedures, integrated functions), sql optimizations, massive loads, mirroring and integrations for hybrid environments. #CUSTOMERS * Top-rated developer for 120 customers in 6 countries (USA, UK, Spain, South Corea, Chile, and Venezuela), from simple single-user up to millions-user solutions, covering start-ups to large corporations. * Developed solutions for high availability / high traffic (up to 120 million records daily for the Telecom industry ) and already worked in load-balanced environments (including Clusters, Cloudflare, hardware load-balancers, mirrored databases, and many others) * Developed software for Telecom companies like BellSouth, Telefonica, Motorola, Ericsson, Telcel, and another four minor telecom companies. (Datawarehousing, cellular switches live data capture, PBX data extractions, data logging, and data bridges). * Developed solutions for Booking and Tourism, including ferry ticketing, bus ticketing, and Hotel/Vacation Rentals reservations. * Worked as a single developer and also on large international teams. * Open source supporter: coding on open source projects for Blockchain, mesh networks, wireless, and IoT

Hello! I'm Daniel Matheus, a passionate web software developer with 5 years of experience and a higher technician degree from Instituto Universitario Jesus Obrero. While my formal education provided a strong foundation, much of my expertise as a developer comes from being self-taught and continuously learning throughout my career. My primary focus is on web development, and I'm proficient in PHP and JavaScript. I've honed my skills in crafting dynamic and user-friendly web applications using frameworks like Laravel, Vue.js, React, NestJS, and Express, and technologies such as Nuxt, Next and Quasar has allowed me to develop SSR solutions, as well as desktop apps with the Electron package. Additionally, I've utilized databases like Redis, MongoDB, MySQL, and PostgreSQL to ensure efficient data management. CSS frameworks like Tailwind CSS and Bootstrap allow me to create minimalistic and responsive user interfaces. I'm a curious individual and software development empowers me to turn ideas into reality, and the thrill of creating solutions that positively impact people's lives drives my passion. The ability to solve problems and constantly innovate is what makes this field so fascinating to me, if you need a problem in your business to be taken care of, I'm the right choice.

Software Engineer with strong knowledge in backend development. I have worked with multiple frameworks like Ruby on Rails, NestJs, React, etc. to build robust, scalable, secure, and highly available applications.