Security Engineers pentru angajare
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Hello. I specialize in building crypto betting and blockchain-based gambling platforms that are secure, scalable, and ready for real-world use. My experience comes from working on live betting systems, not proof-of-concepts, where accuracy, security, and uptime directly impact revenue and user trust. I’ve developed...Hello. I specialize in building crypto betting and blockchain-based gambling platforms that are secure, scalable, and ready for real-world use. My experience comes from working on live betting systems, not proof-of-concepts, where accuracy, security, and uptime directly impact revenue and user trust. I’ve developed end-to-end crypto betting platforms, including sportsbook-style betting, casino-style games, and provably fair systems. My work covers the full stack, from system architecture and backend logic to wallet integration, transaction processing, and high-performance APIs that support real users and real money. On the backend, I design robust, secure architectures with a strong focus on data integrity and performance. I have implemented crypto wallet flows for deposits and withdrawals, blockchain transaction confirmations, odds calculation, bet placement and settlement logic, and balance management. I understand how critical atomic transactions, idempotency, and precise fund handling are in betting systems. I have hands-on experience integrating with blockchains such as Bitcoin and EVM-compatible networks, managing on-chain transactions, confirmations, and security best practices. I also work with third-party services including odds providers, payment gateways, KYC solutions, and fraud prevention tools when required. Security is a top priority in all my projects. I implement secure authentication, role-based access control, wallet protection, rate limiting, anti-abuse measures, and detailed audit logging. I design platforms to handle high traffic, peak betting activity, and real-time updates without sacrificing stability or performance. On the frontend, I build responsive, intuitive interfaces that make betting easy and transparent for users. I focus on real-time odds updates, live betting experiences, and clear transaction histories so users always know where their funds and bets stand. I approach crypto betting projects with a product-focused and compliance-aware mindset. I understand the regulatory sensitivity of this space and build systems that are structured, auditable, and adaptable across different jurisdictions. If you’re looking for a developer who understands both the technical and financial risks of crypto betting platforms, communicates clearly, and delivers production-ready systems built to scale, I’m ready to help. Thanks mai puțin
Angajează pe stanislavy9
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✅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. mai puțin
Angajează pe touhidecevw
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I'm a Full-Stack Game Developer with 6+ years of hands-on experience delivering both casual and casino-style games, from concept to deployment. I specialize building high-performance multiplayer systems, immersive UIs, and scalable backends-whether for mobile, desktop, or online platforms. What I do best -...I'm a Full-Stack Game Developer with 6+ years of hands-on experience delivering both casual and casino-style games, from concept to deployment. I specialize building high-performance multiplayer systems, immersive UIs, and scalable backends-whether for mobile, desktop, or online platforms. What I do best - Casino-Style Games: Poker, card games, and betting systems - AI & Bots: Custom gameplay bots, moderation AI, automation systems - Frontend Expertise: React.js, Vue.js, Next.js (Cocos for online game UIs), published game dashboards & lobbies - Game Engines: Unity, Unreal Engine, Cocos Creator, Roblox Studio, Godot, GameMaker - Real-Money & Crypto Integration: Web3 wallets, token payments, fiat gateways - DevOps & Hosting: Deployed on VPS, AWS, and full CI/CD pipelines - Admin Dashboards: MAnage games, player data, analytics, and in-game assets - Backend Development: Node.js & java (matchmaking, balance systems, auth, leaderboards) Smartfox server, lidGDX, Netty, OpenGS, KryoNet I understand the business side of games-monetization, engagement, and compliance. I specialize in end-to-end delivery: from gameplay logic and networking to hosting and live deployment. I've built games that handle real money transations, so I prioritize security and scalability. Whether you're building a next-gen multiplayer title, a blockchain-powered game, or secure casino platform-I'm here to make it real. Let's build something players will love. Thank you visit my profile. mai puțin
Angajează pe kirills31
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⚡ Preferred Freelancer | ⚡ 13+ Years Experience in Web Security and WordPress Hello! I am Harwinder Kumar, a seasoned professional specializing in comprehensive Web Security and WordPress. I offer services in Malware Removal, Virus Removal, Ethical Hacking, Internet Security, WordPress Speed Optimization, Websites...⚡ Preferred Freelancer | ⚡ 13+ Years Experience in Web Security and WordPress Hello! I am Harwinder Kumar, a seasoned professional specializing in comprehensive Web Security and WordPress. I offer services in Malware Removal, Virus Removal, Ethical Hacking, Internet Security, WordPress Speed Optimization, Websites Transfer, SSL Installation, WordPress Development, Linux Server Administration and Zen Cart / Drupal / MODX / Moodle / Joomla CMS Upgrades. Achievements: ✅ Cleaned 5000+ websites successfully from malware with security enhancement. ✅ Conducted 1,000+ seamless website transfers. ✅ Completed more than 500 SSL installations. ✅ Optimized speed of 200+ WordPress websites. Services Offered: 1. Malware and Virus Removal (Cleaning Hacked Websites and Servers): ✔ Guaranteed 100% cleanup of websites, including databases from malicious code. ✔ Remediation of WP-VCD malware, backdoors, malicious javascript and conditional redirects. ✔ Specialized solutions for japanese keyword hack, SEO spam / pharma hack, credit card stealers and ecommerce malware. ✔ Google blacklist removal (This site may be hacked, The site ahead contains malware), google deceptive warning fix. ✔ McAfee SiteAdvisor, norton blacklist or any VirusTotal based blacklist fix. 2. Website Security Maintenance: Strategic security enhancements and guidance for future-proofing your digital assets. 3. Website Transfer and Migration: Expert transfer of websites to new hosts or domains for any PHP-based CMS or custom-coded websites. 4. SSL Installation and HTTPS Migration: Seamless migration from HTTP to HTTPS with secure padlock implementation. 5. WordPress Development and Troubleshooting: Comprehensive development and issue resolution, including critical and fatal error fixes. 6. HTTP Security Headers Fix: Implementation of essential security headers to protect your web application from common vulnerabilities and threats. 7. Linux Server Administration: Efficient server management promoting optimal performance and security. 8. WordPress Speed Optimization: Proven methods to enhance website performance following Google PageSpeed and GTmetrix standards. 9. Platform Upgrades: Upgrading Zen Cart, Drupal, MODX, Moodle and Joomla to their latest stable versions. 10. Penetration Testing: Thorough security vulnerability assessments to safeguard your web presence. If you're looking for a trusted partner to secure, optimize and enhance your digital operations, I am here to deliver superior solutions tailored to your needs. Let's collaborate to ensure your website is both secure and performing at its peak! mai puțin
Angajează pe arfharwinder
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I am a Senior IT & Cloud Infrastructure Consultant with 16+ years of hands-on experience helping businesses design, secure, optimize, and troubleshoot their IT environments. I hold a Master’s degree in Networks & Security (Scholarship-based) and multiple industry certifications. I specialize in Microsoft Azure,...I am a Senior IT & Cloud Infrastructure Consultant with 16+ years of hands-on experience helping businesses design, secure, optimize, and troubleshoot their IT environments. I hold a Master’s degree in Networks & Security (Scholarship-based) and multiple industry certifications. I specialize in Microsoft Azure, Windows Servers, Networking, Firewalls, Security, VDI, Monitoring, and Backup & Disaster Recovery. I work with both on-premise and cloud environments, providing fast, reliable, and cost-effective solutions with clear communication. What I help clients with: Cloud Services: Microsoft Azure, AWS, Google Cloud – setup, migration, performance tuning & cost optimization Servers & Virtualization: Windows Server, Active Directory, GPO, DNS, DHCP, Hyper-V, VMware ESXi, clustering & high availability Networking & Wireless: Network design, troubleshooting, VLANs, routing, VPNs, MPLS, SD-WAN (Cisco, Aruba, Fortinet, Mikrotik, UniFi) Security & Firewalls: Fortinet, Palo Alto, Sophos, Cisco ASA, pfSense, email security (SPF, DKIM, DMARC), endpoint protection VDI & Remote Access: Azure Virtual Desktop, Citrix VDI, VMware Horizon Monitoring & Cybersecurity: SolarWinds, PRTG, Zabbix, vulnerability scanning & security reporting Backup & DR: Veeam, Acronis, NetBackup – backup design, testing & recovery PBX & Collaboration: 3CX, FreePBX Documentation & Consulting: Technical documentation, policies, diagrams, audits, and reports I am experienced in remote IT support, urgent troubleshooting, migrations, and long-term IT management. My focus is always on security, performance, uptime, and business continuity. ✔ Clear communication ✔ Fast response time ✔ Enterprise-level experience ✔ Short-term fixes or long-term support I am available for one-time tasks, ongoing support, consulting, and complex infrastructure projects. mai puțin
Angajează pe HaroonKareem
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Sistem de management al conținutului (CMS), CSS, Managementul datelor, Vizualizare de date, Dezvoltare frontendHi! 👋 I’m a WordPress expert who helps businesses, entrepreneurs, and startups build professional, fast, and user-friendly websites that actually get results. Whether you need a brand-new website, a redesign, or fixes to an existing WordPress site, I focus on clean design, strong performance, and simple management—so...Hi! 👋 I’m a WordPress expert who helps businesses, entrepreneurs, and startups build professional, fast, and user-friendly websites that actually get results. Whether you need a brand-new website, a redesign, or fixes to an existing WordPress site, I focus on clean design, strong performance, and simple management—so you can update your site easily without technical stress. 🛠️ What I can do for you 🌐 Custom WordPress website development 🎨 Theme customization & custom themes 🔌 Plugin setup & custom plugin development ⚡ Speed optimization & performance tuning 🔐 Security hardening & malware cleanup 📱 Fully responsive (mobile-friendly) design 🛒 WooCommerce stores & payment integration 🔧 Bug fixing, updates & ongoing maintenance ⭐ Why clients love working with me Friendly & clear communication Clean, organized, and scalable work On-time delivery with regular updates Focus on both design and functionality Long-term support after project completion 🎯 My working style I don’t just build websites—I build solutions that grow your business. I listen carefully, suggest improvements, and make sure your WordPress site is secure, fast, and easy to use. If you’re looking for a reliable WordPress developer who cares about quality and results, let’s connect! 📩 Send me a message and let’s get started. mai puțin
Angajează pe jamesw659
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I’m a dedicated Engineer who enjoys turning ideas into reliable, well-built products—both in software and in systems that interact with the physical world. I’ve worked across web, mobile, and backend systems, helping clients move from concept to production with clean, maintainable code, and I’m comfortable...I’m a dedicated Engineer who enjoys turning ideas into reliable, well-built products—both in software and in systems that interact with the physical world. I’ve worked across web, mobile, and backend systems, helping clients move from concept to production with clean, maintainable code, and I’m comfortable collaborating on projects that involve hardware, mechanical constraints, or real-world performance considerations. I take pride in understanding the “why” behind a project, not just the requirements list, because good engineering—whether digital or mechanical—solves real problems. I bring a practical, detail-oriented mindset shaped by experience with mechanical systems, design tolerances, and how things are actually built and used, not just how they look on paper. I’m known for being dependable, detail-oriented, and easy to work with. I communicate clearly, meet deadlines, and take ownership of what I deliver. Whether I’m building new features, improving performance, integrating with hardware, or fixing bugs that “should be simple but somehow aren’t,” I approach each task with care and persistence. I’m comfortable working independently or as part of a team, adapting quickly to different tech stacks, workflows, and engineering disciplines. I value long-term partnerships and aim to build solutions that scale, last, and perform reliably in real-world conditions. I work hard, enjoy what I do, and I won’t disappear halfway through a project—unless it’s to grab coffee and come back with a better solution. mai puțin
Angajează pe Omarko9
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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 mai puțin
Angajează pe KarthikTechCon
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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. mai puțin
Angajează pe martini002
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Helping organizations secure their cloud infrastructure and optimize their multi-cloud strategies. I provide end-to-end cloud security services from comprehensive audits to hands-on implementation across AWS, Microsoft Azure, and Google Cloud Platform.Helping organizations secure their cloud infrastructure and optimize their multi-cloud strategies. I provide end-to-end cloud security services from comprehensive audits to hands-on implementation across AWS, Microsoft Azure, and Google Cloud Platform. mai puțin
Angajează pe ss4net2
