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Freelancers Patrocinados
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I am a network administrator with a degree in Information Security, bringing nearly 20 years of experience in computer networks, virtualized environments, and Linux systems. My expertise spans a wide range of technologies, from VPN and security configurations to network virtualization, cloud infrastructure, and IT...I am a network administrator with a degree in Information Security, bringing nearly 20 years of experience in computer networks, virtualized environments, and Linux systems. My expertise spans a wide range of technologies, from VPN and security configurations to network virtualization, cloud infrastructure, and IT service operations. My Specialties: Designing and implementing medium and large-scale enterprise networks to ensure scalability, security, and optimal performance. Expertise in pfSense and OPNsense for firewall, VPN, L2TP, IPSec, DHCP, DNS, NAT, and other network services. Proficient in WireGuard VPN for secure, high-performance connections in diverse environments. In-depth knowledge of XCP-NG and Proxmox VE for virtualization, container management, and cloud infrastructure. Extensive experience with Oracle Linux, ensuring stable and secure enterprise Linux environments. Skilled in FreePBX (VOIP) and IVR (Interactive Voice Response) solutions for scalable voice services. Advanced understanding of switching technologies, including VLANs, TRUNK, LACP, and other essential network protocols. Integration and management of Kimai time tracking system for accurate activity billing and productivity monitoring. Implementation and customization of Zammad helpdesk system for streamlined support and ticketing workflows. Configuration and deployment of Ubiquiti equipment (UniFi, EdgeRouter, airMAX, UISP) for reliable wireless backhauls, point-to-point links, and enterprise-grade Wi-Fi solutions. Skills and Hands-on Experience: Proficient in working with Cisco routers and switches, ensuring high availability and network optimization. Experience with Synology NAS for network storage solutions. Expertise in AWS Lightsail, including cost optimization for EC2, Route53, RDS, VPC, Gateway, Load Balancer, and VPN setup. Oracle Cloud Infrastructure (OCI): Deployment and management of compute instances, VCNs, subnets, Internet Gateways, routing, security lists, and firewall policies, enabling secure, high-performance cloud-based infrastructures. Strong capabilities in network documentation to provide detailed, accurate infrastructure layouts for management and troubleshooting. menos
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AbhishekSingh08 AbhishekSingh08
$60 Dólares / hora
Full-Stack Developer (7+ years) & Statistician 6+IndiaI am a Full-Stack Developer and Biostatistician with 7+ years of professional experience, offering two specialized services under one profile—advanced software development and high-quality statistical analysis. Clients can engage me for either role independently or both together, depending on project needs. 🔹...I am a Full-Stack Developer and Biostatistician with 7+ years of professional experience, offering two specialized services under one profile—advanced software development and high-quality statistical analysis. Clients can engage me for either role independently or both together, depending on project needs. 🔹 Full-Stack Developer (7+ Years) I design and develop scalable, secure, and high-performance web and mobile applications from concept to deployment. I handle the complete development lifecycle, including UI/UX design, backend architecture, database design, API development, testing, and cloud deployment. I focus on clean, maintainable code, performance optimization, and reliable system architecture—especially for data-driven and research-oriented platforms. Key Skills: Frontend: React, Angular, HTML5, CSS3, Bootstrap, Tailwind Backend: Node.js, Django, Flask, REST APIs, .NET Mobile Apps: React Native, Flutter Databases: PostgreSQL, MySQL, MongoDB, SQL Cloud & DevOps: AWS, Docker, CI/CD Testing, security, and performance optimization 🔹 Biostatistician & Statistician (6+ Years) I am an experienced Biostatistician and Statistician specializing in clinical research, biomedical studies, public health, and epidemiology. I support clients by converting raw data into accurate, reproducible, and publication-ready statistical results. My work is aligned with academic, clinical, and regulatory standards, ensuring results are reliable and clearly interpretable for decision-making, manuscripts, and presentations. Key Expertise: Study design, protocol review, and sample size calculation Clinical trial and biomedical data analysis Regression models, survival analysis, longitudinal data analysis Randomization and statistical modeling Tools: R, SAS, SPSS, Python Manuscript-ready tables, figures, and detailed reports Why Work With Me? Two specialized skill sets in one professional Clear separation of development and statistics work Strong communication and documentation High-quality, deadline-driven delivery menos
Contratar AbhishekSingh08
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Hi there! With a career as a web developer for several years now, I have mastered a number of tools that make my work dynamic and efficient. These include JavaScript, HTML, CSS, PHP, MySQL, React, Node.js, and MongoDB. Attaining my degree opened my first web development job as a Front-End Development Intern at a...Hi there! With a career as a web developer for several years now, I have mastered a number of tools that make my work dynamic and efficient. These include JavaScript, HTML, CSS, PHP, MySQL, React, Node.js, and MongoDB. Attaining my degree opened my first web development job as a Front-End Development Intern at a company in Belgrade, which set me on the right track due to the practical experience I was exposed to. Since then, I have worked on multiple personal freelance projects for clients, as well as consulting for various businesses for their web application needs. These include custom form widgets, calculators, and agency freelancer tools. My portfolio is an example of the work I have done using modern technologies like React, Node.js, PHP, and Express, as well as newer styles like Tailwind, Bootstrap, and jQuery. I know how to efficiently use these frameworks and set up multiple development environments that allow for smooth multitasking, which is very satisfying. In addition to freelance development, I also have hands-on entrepreneurial experience in China, where I was part of several startup ventures in the e-commerce space. I worked closely with local and international teams to build and optimize online storefronts, develop backend inventory tools, and implement marketing automation systems. This experience taught me how to build tech not just for function, but for scaling businesses in real markets. Being immersed in one of the fastest-moving e-commerce ecosystems sharpened my ability to think fast, test ideas quickly, and deliver under pressure — skills I now bring to every client project. I have loved coding since I got into it, and being paid to do this feels like a dream. With the different clients I work with, I ensure that I dedicate time and thought to detail to guarantee bespoke, quality solutions. Currently, I work freelance for a few partnering companies as part of a tighter team of developers which helps when building specialized web-based software geared towards the demands of formal organizations. In the event that you think my capabilities align with the requirements of your project, I would gladly wait to hear back from you. I appreciate you for spending time on my profile. Have a brilliant day ahead! menos
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