Java Developers for hire in Colombia
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Sponsored Freelancers
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I am a fullstack programmer with extensive experience in Java, Swing, JavaFX Spring boot along with Angular for the frontend, SQL and NoSql database management, special knowledge in Excel, macros (VBA). Soy programador fullstack con amplia experiencia en Java, Swing, JavaFX Spring boot junto Angular para el frontend,...I am a fullstack programmer with extensive experience in Java, Swing, JavaFX Spring boot along with Angular for the frontend, SQL and NoSql database management, special knowledge in Excel, macros (VBA). Soy programador fullstack con amplia experiencia en Java, Swing, JavaFX Spring boot junto Angular para el frontend, manejo de bases de datos SQL y NoSql conocimientos especiales en Excel, macros (VBA). less
Hire jimmtor
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My offer is specialized knowledge and high quality work, fulfilling the agreement. I am an expert in: - Oracle software development. - Analysis and tuning of SQL statements, PL/SQL code, and Forms/Reports. - ETL. - Web services. SOAP and REST (xml/json). - Migration of Oracle Reports to Jasper Reports. - Migration of...My offer is specialized knowledge and high quality work, fulfilling the agreement. I am an expert in: - Oracle software development. - Analysis and tuning of SQL statements, PL/SQL code, and Forms/Reports. - ETL. - Web services. SOAP and REST (xml/json). - Migration of Oracle Reports to Jasper Reports. - Migration of Oracle Forms applications. Between versions and operating systems. - Weblogic application server configuration for Forms applications. I have extensive experience in requirements specification, design, software construction, testing, migration between Oracle versions (B.D. and Developer/Application Server), and application deployment on Oracle Application Servers. The tools/environments in which I have worked are: - Oracle Database 9i to 23c. - SQL. Including: structure/object/types creation, external tables, advanced queries, tuning, security/permissions. - PL/SQL. I have worked, among others, in dynamic code, triggers, file handling, sending mail, data encryption, processing with PL/SQL tables, jobs, Java code in the DB, XML DB, LOB processing, ACL, consumption of Web Services, and tuning. - Developer (Forms and Reports) 6i, 10g, 10gR2, 11g, and 12c. Including migration between versions. - Oracle Application Server 9ias1, 10g, 10gR2 And, Weblogic 11g and 12c. On Windows, Unix, and Linux. Installation and deployment of Forms applications (With Reports) - Unix/Linux shell. - Java. - Jasper Reports. - Creation of Rest services with ORDS. - PostgreSQL database. Knowledge related to Oracle migration complex project. My current area of study is modernization of Oracle applications (Forms/Reports) to technologies such as: Oracle APEX, Node.js and Jasper Reports less
Hire LuisMendozaPardo
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Ingeniero de datos y analista de datos con experiencia en procesos ETLs en herramientas Azure data factory, pentaho data integration, talend open studio, Jupyter; bases de datos con PosgreSQL, MySQL, Oracle, SAP Hana, Azure Synapse Analytics, SQL Server, MongoDB; análisis de datos con Microsoft Power BI, Tableau, R.Ingeniero de datos y analista de datos con experiencia en procesos ETLs en herramientas Azure data factory, pentaho data integration, talend open studio, Jupyter; bases de datos con PosgreSQL, MySQL, Oracle, SAP Hana, Azure Synapse Analytics, SQL Server, MongoDB; análisis de datos con Microsoft Power BI, Tableau, R. less
Hire jhonatandzrtg
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Professional with over 20 years of experience in IT infrastructure, web development, and cybersecurity, delivering innovative and scalable solutions for businesses worldwide. Certified in leading technologies and specialized in cloud environments, system administration, and software development. - Core Skills and...Professional with over 20 years of experience in IT infrastructure, web development, and cybersecurity, delivering innovative and scalable solutions for businesses worldwide. Certified in leading technologies and specialized in cloud environments, system administration, and software development. - Core Skills and Expertise: • Web Development: Proficient in PHP, JavaScript, jQuery, HTML5, CSS3, and Bootstrap Framework. Expert in developing modules, addons, hooks, and scripts for seamless system integration. • System Administration: Extensive experience with GNU/Linux (CentOS, Ubuntu, Debian, Red Hat, Fedora) and Windows (all versions). Skilled in server optimization, configuration, and high availability solutions. • Database Management: Advanced skills in MySQL, SQL Server, and MariaDB, ensuring efficient and secure database performance. - Specialized Knowledge: • Control Panels: Proficient in cPanel/WHM, Plesk, Webmin, and others, with expertise in integrating and managing addons like CloudLinux, WHMSonic, and ShoutCast. • Virtualization and Cloud Infrastructure: Hands-on expertise in VMware, Proxmox, SolusVM, and Virtuozzo. Proficient in managing public/private clouds and hybrid architectures. • CMS and eCommerce Platforms: Custom development for WordPress, Joomla, Magento, PrestaShop, WHMCS, OpenCart, and WooCommerce. • Help Desk and Forums: Skilled in Kayako, osTicket, VBulletin, XenForum, and phpBB for community and support solutions. - Cybersecurity and DevOps: • Certified Ethical Hacker (CEH): Specializing in penetration testing, security audits, and ISO 27001 compliance. • DevOps Expertise: Kubernetes cluster management, CI/CD pipeline creation (Jenkins, Bitbucket), and automation scripting with Python and Bash. • Network Security: Firewall configurations, SSL certificates, and DNS management. - Design and Digital Marketing: • Creative Design: Crafting logos, banners, and branding for impactful user experiences. • Digital Marketing: Email campaigns, social media strategies, and SEO for market visibility. With a client-centric approach and a proven record in infrastructure management, web solutions, and security enhancements, I provide comprehensive IT services to elevate businesses to the next level. Let’s build something extraordinary together. less
Hire jesussuarz
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✅ Website Development ✔️Responsive Web Development - HTML5/PHP/CSS/Bootstrap/JS ✔️JavaScript Frameworks: (jQuery,react.js, vue.js, angular.js, node.js, express.js,Next.js,Nuxt.js) ✔️CMS customization/development (WordPress, Shopify, Joomla, open cart, Wix, Squarespace) ✔️PHP Frameworks :Laravel, CodeIgniter,...✅ Website Development ✔️Responsive Web Development - HTML5/PHP/CSS/Bootstrap/JS ✔️JavaScript Frameworks: (jQuery,react.js, vue.js, angular.js, node.js, express.js,Next.js,Nuxt.js) ✔️CMS customization/development (WordPress, Shopify, Joomla, open cart, Wix, Squarespace) ✔️PHP Frameworks :Laravel, CodeIgniter, YII ✔️Database Management: (MySQL, PostgreSQL, MongoDB, Firebase, AWS) ✔️ Website SEO (on-page, off-page, and speed optimization) ✅ Mobile Development ✔️Native Android/ iOS : Java, Kotlin, Swift, Objective-C ✔️Hybrid Mobile Apps : React Native , Flutter, Apache Cordova ✅ AI Development ✔️ TensorFlow, PyTorch, scikit-learn ✔️ Data Manipulation and Analysis: pandas, NumPy ✔️ NLP: NLTK (Natural Language Toolkit), spaCy ✔️ Cloud Services: AWS, Azure, Google Cloud ✔️ Big Data and Distributed Computing: Apache Hadoop, Apache Spark ✔️ OpenAI Gym, Stable Baselines, OpenCV Dynamic and results-oriented computer science professional with a passion for leveraging technology to solve complex problems. Equipped with a solid foundation in computer science principles, algorithms, and data structures. Experienced in software development, system architecture design, and project management. Adept at collaborating with interdisciplinary teams to deliver innovative solutions. less
Hire jesus0305
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I am a seasoned Full Stack Developer with over 9 years of experience in crafting robust and secure software solutions. I started with traditional languages like C# and Java and have since expanded into various languages like JavaScript, Ruby, and Python. Throughout my career, my primary focus has been on building...I am a seasoned Full Stack Developer with over 9 years of experience in crafting robust and secure software solutions. I started with traditional languages like C# and Java and have since expanded into various languages like JavaScript, Ruby, and Python. Throughout my career, my primary focus has been on building highly secure platforms and maintaining codebases that are easily testable through unit testing. My extensive knowledge extends to both SQL and NoSQL databases, including Oracle, PostgreSQL, MySQL, MongoDB, and AWS DynamoDB. I have a deep understanding of database design and optimization, which enables me to create efficient and scalable data solutions. In recent years, I've immersed myself in blockchain technology and DeFi, staying at the forefront of this rapidly evolving field. I'm also a proficient user of AWS cloud services for deployment and continuous integration/continuous deployment (CI/CD) pipelines. I've worked with a wide array of AWS services, including but not limited to ECS, EKS, EC2, API Gateway, and Lambda, enabling seamless deployment and scaling of applications. My technology stack is versatile: Frontend: React.js(Next.js and Gatsby.js), Vue.js, Svelte, Angular and Blazor Backend: Java Spring Boot, TypeScript Node.js (Nest.js), PHP Laravel, Ruby on Rails, Go Architecture: Microservices, messaging with Kafka Database: Oracle, PostgreSQL, MongoDB, AWS DynamoDB, Redis DevOps: Docker, Kubernetes, AWS services I'm always eager to learn new technologies and deliver top-notch results. Let's work together to achieve your goals in software development! less
Hire enervell
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I am an experienced Full Stack/AI/ML Engineer with a strong background in developing cutting-edge solutions for complex data problems. I have 7+ years of experience in Web/Mobile app development and also passionate about leveraging the power of machine learning and natural language processing to drive innovation and...I am an experienced Full Stack/AI/ML Engineer with a strong background in developing cutting-edge solutions for complex data problems. I have 7+ years of experience in Web/Mobile app development and also passionate about leveraging the power of machine learning and natural language processing to drive innovation and deliver measurable impact. Skilled in building scalable and robust systems that extract valuable insights from unstructured data. Adept at collaborating cross-functionally to translate business requirements into technical solutions. less
Hire brayanandresf4
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Translation, Spanish Translator, English (US) Translator, Castilian Spanish Translator, English (UK) TranslatorSkilled translator and writer. More than 13 years of experience as translator and 10 years of experience here on Freelancer. I can offer you my experience in: - Translations in 5 languages (Spanish, Portuguese, French, German, & English) - Spanish Proofreading - Spanish Transcriptions - Portuguese, Dutch, Italian...Skilled translator and writer. More than 13 years of experience as translator and 10 years of experience here on Freelancer. I can offer you my experience in: - Translations in 5 languages (Spanish, Portuguese, French, German, & English) - Spanish Proofreading - Spanish Transcriptions - Portuguese, Dutch, Italian and French to Spanish translations I can help you translate technical-business documents, medical documents, academic documents, legal documents, websites, articles, books and more. Also I'm an expert in Spanish transcriptions and proofreading (Both European and Latin American Spanish). Ready to translate up to 4000 words per day. Fair prices and always the best quality. --------------------------------------------- Other skills: -Basic Office -Advisor in the social sciences topics I guarantee seriousness, responsibility, quality and punctuality in my jobs. less
Hire DanielP05
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Hello, I have been involved in passionate programming ventures for 10+ years now, and my enjoyment in helping others haven't diminished a bit, on the contrary, the more technologies I work with, the more excited I get on conquering new challenges and goals. I specialize in web development, systems integrations,...Hello, I have been involved in passionate programming ventures for 10+ years now, and my enjoyment in helping others haven't diminished a bit, on the contrary, the more technologies I work with, the more excited I get on conquering new challenges and goals. I specialize in web development, systems integrations, database systems, workflow automations and process optimizations, and also have a very good understanding of business analysis as well as solution architecture and design. I have worked on SaaS products, Marketplaces, Healthcare, Insurance, Travel Portal, Stock Markets ERP solution, Education, and etc. Technologies I can help with: - Tech Stack: React+Express, Angular+Express, Angular+Spring Boot, React+Spring MVC, React+Symfony - React: Redux, Mobx, React-Hooks, Gatsby, Next, Redux-form, Formik, React Query - Angular: RxJS, Angular CLI, Angular Material, NgRx, Karma, Protractor - Backend: Node.js, Express.js, Spring Boot, Symfony - Database: MySQL, MongoDB, Postgres - Cache: Redis - UI Frameworks: Material UI, Semantic UI, Tailwind CSS, React Admin & SPA Templates - API Integration: Google, Twilio, Vonage, Sabre, GPT3.5 or 4.0, Stripe, Social networks - Cloud Services: AWS: EC2, S3, Lambda, Elastic Beanstalk, DynamoDB, Cognito cPanel: PHP configuration, SSL/TLS, MySQL, Ftp/Sftp, Domain/Subdomain, Mail Server, Cron job Vercel: Node and PHP projects, Portfolio VPS: Node, Spring Boot, PHP, Django projects - Design Tool: UML - Tools: Webpack, Babel, Maven, Gradle - Agile Tools: Git, Jira, Trello - VE: Docker, Kubernetes - CI/CD: Jenkins Make no mistake, I have been developing for a LONG time and you can trust I'll get the job done right. Cheers and looking forward to hearing from you, Fabio de Jesus Lozano Villa. less
Hire fabiolv
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Hi there! I'm Hugo, passionate Mobile Developer who jumped to UI/UX Designer as a challenge. I have more than 4 years of professional experience. Currently I'm fully dedicated to Android development focused on user interface and user experience. The last 3 years I have focused on learning everything related to it and...Hi there! I'm Hugo, passionate Mobile Developer who jumped to UI/UX Designer as a challenge. I have more than 4 years of professional experience. Currently I'm fully dedicated to Android development focused on user interface and user experience. The last 3 years I have focused on learning everything related to it and perfecting my skills. Do not hesitate to contact us. less
Hire HugoJavierP
