Security Engineers para contratar
Mostrando 59 resultados
Freelancers patrocinados
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Contratar dinhthi
I help startups and businesses build scalable web and mobile products from idea to launch. With 10+ years of experience, I specialize in Laravel, Next.js, Flutter, API integrations, SaaS platforms, marketplaces, healthcare systems, delivery platforms, payment flows, and AI-powered applications. What I can help you...I help startups and businesses build scalable web and mobile products from idea to launch. With 10+ years of experience, I specialize in Laravel, Next.js, Flutter, API integrations, SaaS platforms, marketplaces, healthcare systems, delivery platforms, payment flows, and AI-powered applications. What I can help you with: - Custom Web Applications - SaaS Platforms - Mobile Apps (iOS / Android) - Admin Dashboards & Back Office Systems - API Development & Third-party Integrations - Payment Gateway Integration - Real-time Features (tracking, chat, notifications) - MVP Development & Product Scaling I focus on clean architecture, performance, maintainability, and business-oriented solutions — not just coding features. If you need a reliable developer who can understand your product and deliver with clear communication, I’d be happy to help. menos -
Contratar kerolosgerges
Preferred Freelancer | 8+ Years Experience ⭐ Top 1% I Fix broken websites, Recover hacked systems, And lock them down to prevent it from happening again ▶ Core Expertise ➡️ Website migration (Shared Hosting ⇄ VPS ⇄ Dedicated, zero downtime) ➡️ Emergency WordPress fixes (crashes, errors, white screen) ➡️ Hacked...Preferred Freelancer | 8+ Years Experience ⭐ Top 1% I Fix broken websites, Recover hacked systems, And lock them down to prevent it from happening again ▶ Core Expertise ➡️ Website migration (Shared Hosting ⇄ VPS ⇄ Dedicated, zero downtime) ➡️ Emergency WordPress fixes (crashes, errors, white screen) ➡️ Hacked website recovery (full cleanup + restore access) ➡️ Malware removal + deep security hardening ➡️ Speed optimization (real performance gains, not plugins only) ➡️ Server-level fixes (NGINX, Apache, Cloudflare, DNS issues) ➡️ Full-stack (React / Next.js / Node / PHP) ▶ How I Work Fix root causes, not symptoms Permanent solutions, no quick patches Safe handling of live systems Clear and efficient communication ▶ Why Clients Hire Me 50+ projects | 5.0★ rating Solve issues others can’t Fast on critical tasks Clear, direct communication Best for: hacked websites, downtime, critical errors, performance issues, and server migrations. menos -
Contratar ksd711
Senior Full-Stack Mobile Architect | AI & API Integration Specialist You have a vision; I have the technical expertise to build it into a scalable, market-ready product. With a deep background in mobile architecture and AI development, I specialize in creating high-performance applications that users love. Whether...Senior Full-Stack Mobile Architect | AI & API Integration Specialist You have a vision; I have the technical expertise to build it into a scalable, market-ready product. With a deep background in mobile architecture and AI development, I specialize in creating high-performance applications that users love. Whether it’s a Tinder-style dating app, a complex Uber-like logistics platform, or an AI-driven chatbot, I ensure your software is secure, fast, and intuitive. The 4D Strategy for Your Success: 1. Discover: We define your goals and user needs. 2. Develop: Agile coding using Flutter, React Native, or Native (iOS/Android). 3. Demo: Regular milestones so you see progress in real-time. 4. Deploy: Seamless launch and cross-platform optimization. Core Expertise: **Mobile: Flutter, React Native, Kotlin, Xamarin Expert. **AI: Custom Chatbots & AI Integration. **Web: MERN Stack (MongoDB, Express, React, Node), Next.js. **Enterprise: MuleSoft & Complex Data Integration. My work ethic is unparalleled, and my goal is simple: to build software that grows your business. Let’s jump on a call to discuss your project! menos -
Contratar touhidecevw
touhidecevw touhidecevw
$60 USD / hora
Network & System Specialist|CCNP|Fortinet|RHCE|CEHBangladesh✅As a highly skilled and experienced network and system administrator with over 11 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete...✅As a highly skilled and experienced network and system administrator with over 11 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project. My few hands-on experiences is : ✅Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG ✅Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution ✅Cisco routers, switches, FTD, FMC, and ASA firewalls. ✅WatchGuard, Palo Alto, CheckPoint Firewall, SonicWall, Fortigate, pfSense, OPNsense, Huawei firewalls. ✅Unifi Enterprise Fortress Gateway, Ubiquiti UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices ✅ Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations. ✅Cisco, Tp-Link, Aruba, Fortinet, Ubiquiti, Planet, Huwei switch configurations. ✅MikroTik Routers and switch configuration ✅ SNMP monitoring configuration: Observium, Librenms, Cacti, Nagios core ✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH Cloud and Digital Ocean, Contabo ✅Hyper-V, VMware ESXi, VMware Workstation, VirtualBox, KVM, and Proxmox. ✅Ubuntu, Red Hat, CentOS, Debian, openSUSE, and Kali Linux distributions. ✅Windows server administration , Active Directory management, Exchange Server administration, DNS configuration ✅Servers: HP Proliant Servers, Dell/EMC Servers, IBM ✅VLSM/subnetting of small to large enterprises ✅VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP) ✅DHCP, NAT/PAT configuration and IP helper address ✅static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration ✅Layer-3 Redudent/backup links Using HSRP, VRRP ✅Port security, ACL( access list) configuration ✅Network troubleshooting and optimization ✅VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OpenVPN & DMVPN) ✅Network automation script for any Cisco and FortiGate devices using python ✅Overlay Networks VPN Expertise: Proficient in configuring and managing various overlay network VPNs, including ZeroTier, Tailscale, WireGuard, SoftEther VPN, Netbird , Netmaker, OpenVPN Cloud, I, Twingate and PeerVPN for secure, scalable, and decentralized networking, enabling seamless remote access, team collaboration, and encrypted communications across distributed systems. ✅Cisco Duo: MFA, 2FA, SSO, Identity Security Integration, Windows Logon, RDP, Microsoft AD, VPN Authentication. menos -
Contratar SEOGlobalLLC
You don’t just need code. You need a team that understands the business outcome behind it. SEO Global is a full-stack development group working with founders, agencies, and growing companies that want senior-level execution without the overhead of hiring or micromanaging freelancers. We design, build, and maintain...You don’t just need code. You need a team that understands the business outcome behind it. SEO Global is a full-stack development group working with founders, agencies, and growing companies that want senior-level execution without the overhead of hiring or micromanaging freelancers. We design, build, and maintain scalable digital products—from polished frontend experiences to robust backend systems. What sets us apart isn’t just technical ability. It’s product thinking. We don’t blindly build feature lists. We help you focus on what actually drives results, then design and develop solutions that are clean, fast, and built to scale. Our Expertise * Custom web applications and platforms * Android & iOS mobile app development * E-commerce systems and payment flows * Trading systems, automation, and market data tools * AI-powered features and workflow automation * Web scraping, data extraction, and crawling systems * Bot development (Telegram, Discord, automation bots) * API development and third-party integrations * Performance optimization and technical SEO * Ongoing product iteration, maintenance, and support If you’re looking for a reliable development team that thinks in terms of outcomes—not just tasks—let’s talk. menos -
Contratar azfatima512
I'm a freelancer with a strong background in web research, web scrapping, data entry, and eCommerce. With over 5 years of experience, I have the knowledge and expertise to help you with your projects. My attention to detail and accuracy make me a reliable source for any task that requires researching, collecting, and...I'm a freelancer with a strong background in web research, web scrapping, data entry, and eCommerce. With over 5 years of experience, I have the knowledge and expertise to help you with your projects. My attention to detail and accuracy make me a reliable source for any task that requires researching, collecting, and entering data. My services are available to you 24/7 to get the job done quickly and accurately. I have the skills and experience to ensure that your projects are completed on time and within the budget. Services and Skills List ✔ Product Searching ✔ Product Listing ✔ Web Development - Shopify, Bigcommerce, WordPress, Woocommerce, E-Commerce, eBay, Opencart, Etc. ✔ PDF into Fillable Forms ✔ PDF, Word, Excel, PowerPoint ✔ Data entry ✔ Typing ✔ Internet research ✔ Data mining ✔ Web research ✔ Web scraping ✔ Lead generation ✔ Bookkeeping ✔ Social Media Management menos -
Contratar ajittkumark
Experienced Full-Stack Senior .NET Developer specializing in SaaS application development, enterprise software architecture, backend engineering, and scalable cloud solutions. With years of practical experience, I build secure, high-performance web platforms using .NET, ASP.NET Core, Azure, SQL Server, and JavaScript...Experienced Full-Stack Senior .NET Developer specializing in SaaS application development, enterprise software architecture, backend engineering, and scalable cloud solutions. With years of practical experience, I build secure, high-performance web platforms using .NET, ASP.NET Core, Azure, SQL Server, and JavaScript frameworks, helping businesses launch reliable digital products faster. 🚀 Core Expertise ✅ Senior .NET Development with .NET Core, ASP.NET Core, C#, and Enterprise Backend Architecture ✅ Scalable REST API Development, Microservices, Distributed Systems, and Backend Integration ✅ Secure Authentication & Authorization using JWT, OAuth, Role-Based Access Control, and Identity Management ✅ Database Architecture, SQL Server Performance Tuning, Azure SQL, Query Optimization, and Data Modeling ✅ Responsive Frontend Development, Modern Web UI Engineering, and Full-Stack Application Design ✅ Reusable Component-Based Architecture for Maintainable and Scalable Web Applications ✅ Microsoft Azure Cloud Infrastructure, Docker, DevOps, CI/CD Pipelines, and Release Automation 🌐 Domain Expertise ✅ Healthcare Application Development ✅ SEO Platforms and Marketing Tools ✅ Cybersecurity Software Solutions ✅ E-Commerce Platforms ✅ SaaS Products ✅ Enterprise Applications ☁️ Cloud, SaaS & Performance Engineering ✅ Microsoft Azure Services including App Services, Azure SQL, Storage Accounts, Functions, and Cloud Deployment ✅ CI/CD Pipeline Design, Deployment Automation, and DevOps Best Practices ✅ Application Performance Optimization, Monitoring, Logging, and Reliability Engineering ✅ SaaS Product Development for Startups, Growing Businesses, and Enterprise Platforms ✅ Multi-Tenant SaaS Architecture with Subscription Management and Payment Gateway Integration ✅ Scalable Software Architecture designed for long-term growth and high availability 💼 Services I Provide ✅ Custom SaaS Product Development from MVP to Production Release ✅ Enterprise Web Application Development with Secure and Scalable Architecture ✅ REST API Development, Third-Party Integrations, and Backend Modernization ✅ Modern Frontend Interfaces with Clean UX and Responsive Design ✅ Cloud Hosting, Infrastructure Optimization, and Deployment Automation ✅ Ongoing Product Maintenance, Feature Expansion, and Technical Support 🌟 Why Clients Choose Me ✅ Years of Real-World Software Development Experience ✅ Strong Technical Depth with Business-Focused Solution Design ✅ Clean, Maintainable, and Future-Proof Code Architecture ✅ Clear Communication, Fast Response, and Reliable Collaboration ✅ Consistent On-Time Delivery with High Quality Standards ✅ Long-Term Technical Partnership for Product Growth and Stability From solution design and development to cloud deployment and long-term maintenance, I can take full responsibility for delivering scalable, production-ready software solutions. menos -
Contratar rehmanshawon2017
rehmanshawon2017 rehmanshawon2017
$25 USD / hora
MERN C# Unity Python ML Flutter Java DevOpsBangladeshA seasoned Tech Lead and Senior Full Stack Engineer with over 14 years of hands-on experience in software development, project architecture, and team leadership. Adept at utilizing modern JavaScript frameworks (MERN) and cloud-based technologies to deliver scalable, high-performance solutions. Proven expertise in both...A seasoned Tech Lead and Senior Full Stack Engineer with over 14 years of hands-on experience in software development, project architecture, and team leadership. Adept at utilizing modern JavaScript frameworks (MERN) and cloud-based technologies to deliver scalable, high-performance solutions. Proven expertise in both front-end and back-end development across a diverse range of projects. Seeking to apply a deep technical background and leadership acumen in a senior role that fosters innovation, mentorship, and strategic growth. Dynamic and results-oriented Senior Full Stack Engineer with extensive experience in MERN stack development, GraphQL, Flutter, and DevOps practices. Adept at designing and delivering cutting-edge solutions in monolithic, microservices, SaaS, and cloud architectures using AWS and Azure platforms. Proficient in leading cross-functional teams, driving project management, and aligning technical execution with business goals. Skilled at architecting complex systems to ensure reliability, security, and scalability, while maintaining high standards of code quality and best practices. Focused on continuous improvement and mentoring teams to achieve high performance and innovation. TECHNICAL SKILLS: Full-Stack Development: Expert in JavaScript frameworks (MERN: MongoDB, Express.js, React, Node.js), HTML5, CSS3, JavaScript (ES6+), Redux, RESTful and GraphQL APIs. Backend Development: Expertise in building microservices and monolithic architectures, Node.js, Express.js, Apollo Server, database management (MongoDB, MySQL, PostgreSQL), serverless architectures, and containerization (Docker, Kubernetes). Mobile App Development: Cross-platform mobile application development using Flutter/Dart. Knowledgeable in app lifecycle management, state management (BLoC, Provider), and deployment (Android/iOS). DevOps & Cloud Services: Hands-on experience with AWS, Azure, Heroku, CI/CD pipelines, GitHub Actions, Jenkins, and containerization with Docker. Knowledgeable in infrastructure as code (Terraform) and cloud-native patterns. Game Development: Proficient in Unity/C# game development, game mechanics design, and 2D/3D environments. Delivered client-based gaming solutions, handling development lifecycle from concept to deployment. Leadership & Mentorship: Extensive experience in leading agile teams, conducting code reviews, setting coding standards, and fostering a culture of learning and collaboration. Additional Skills: Python, C++, Git, WebSockets, JWT authentication, Firebase, WebPack, micro-frontends, and TypeScript. menos -
Contratar martini002
Where technical precision meets real-world impact Hi, I’m Martin, a Senior Software Engineer with over 13 years of experience building robust backend systems and smart automation solutions. My core expertise lies in Python development, with a strong focus on Django, process automation, and hardware-software...Where technical precision meets real-world impact Hi, I’m Martin, a Senior Software Engineer with over 13 years of experience building robust backend systems and smart automation solutions. My core expertise lies in Python development, with a strong focus on Django, process automation, and hardware-software integration using tools like Raspberry Pi and Arduino. ✴️ Core Technical Skills - Python Development – Efficient and scalable backend systems - Django & Django REST Framework – Clean, secure, and well-documented APIs - Process Automation – From workflow optimization to RPA and web scraping - Hardware Integration – Raspberry Pi, Arduino, sensors, and custom electronics - Linux Server Administration – Secure deployments, performance tuning, and uptime reliability - Database Management – MySQL, PostgreSQL, SQLite - Basic Frontend Development – Clean and functional interfaces using HTML, CSS, and JavaScript ✴️ What I Build - Custom RESTful APIs for mobile or web apps - End-to-end IoT solutions and embedded systems - Automation tools that reduce manual work - Monitoring dashboards with real-time hardware data - Backend platforms with hardware communication layers ✴️ Why Work With Me? - Specialized Expertise – I solve technical problems with depth, not with shortcuts - End-to-End Ownership – From architecture to deployment and post-launch support - Clear Communication – Technical concepts translated into actionable plans - Long-Term Support – I don’t disappear after delivery; I ensure everything works and improves Let’s Work Together If you’re looking for a backend engineer who understands both software and hardware, and who can deliver efficient, future-ready solutions, I’d love to hear about your project. ✴️ Reach out to discuss how we can bring your ideas to life. menos -
Contratar KarthikTechCon
We@ResoniteTech have expertise and experience on web, mobile and desktop application development across Java, PHP & Python based frameworks and platform. We have experience on both RDMS and no-sql databases from data modelling to deployments. we do services on testing using JMeter, Selenium based tools and...We@ResoniteTech have expertise and experience on web, mobile and desktop application development across Java, PHP & Python based frameworks and platform. We have experience on both RDMS and no-sql databases from data modelling to deployments. we do services on testing using JMeter, Selenium based tools and platform. We have developed desktop application (windows based) on JavaFx , Android apps, and Web-application based on CodeIgniter, Laravel, Zend, Spring Boot, Quarkus, Django, Fast API and so on. We continue to take more challenging and rewarding projects to scale up further to meet customer's demand. We have developed desktop based windows application called "TradeSense" for managing inventory, billing and accounting of a retail business for small / medium scale industries. Please check out this product on below link https://digitradesense.com/ We have launched mobile app called "UpToDate" to help user take timely action for insurance, utilities, Passport/Visa and family events on Google Play store as below https://play.google.com/store/apps/details?id=com.my.uptodate We have developed desktop based simulation and modelling software product called "Caliper" to optimize distribution network for CPG and Retail customers We have developed mobile app called "Scan & Do" to help the user scan any QR code / Bar Code and do relevant meaningful action according to the scanned code as below https://play.google.com/store/apps/details?id=com.scantosearch Skilled in : PHP, MySQL, Python, Django, Zend, Code Igniter, Laravel, Docker, JMeter, Selenium, Android, Java, SQLite, VC++,OpenGL menos
