Hire the best TCP/IP specialists
Check out TCP/IP specialists with the skills you need for your next job.
- $65 hourly
- 5.0/5
- (185 jobs)
FULL-TIME UPWORK FREELANCER. THIS IS MY DAILY JOB. I HELP RESOLVE YOUR BUSINESS'S WEB-RELATED BOTTLENECKS I work with Marketing Agencies and Small to Medium Sized businesses to provide a wide range of Wordpress related web services as well as technical consulting. What I do: I collaborate, consult, and provide support to marketing Agencies who run small to medium sized businesses that want to establish, change or refine their online identities. Wordpress Experience * Website Design from start to finish • Design and layouts using Elementor, Divi, Visual Composer, Etc • PHP Development / Debugging • Custom Plugins / Plugin modification • Theme Customization with CSS • Site optimization • Multipart Conditional Logic Forms • Site Transfers WooCommerce • Customize WooCommerce Product , Cart and Checkout Experience • Modify / Customize WooCommerce Plugins • Build custom invoicing and workflow solutions Web Hosting • Domain setups and transfers • TCP/IP / DNS / VPNs • Email spam correction Elementor and Divi Expert, Wordpress WooCommerce Web Design, PHP, HTML, and CSS with extensive experience building, supporting, troubleshooting and optimizing within the Wordpress framework. I've worked independently as a Wordpress web designer for 15 years specializing in Wordpress websites that are minimal, fast, and responsive. I can modify plugins and customize PHP to make your Wordpress site do most anything. In other roles I've provided support for TCP/IP/DNS/SMTP, web hosting services, domain transfers, email server spam correction and similar. Hire Me For: Designing, optimizing, streamlining, organizing, and otherwise making sense of websites, code, content and the like. I've thrived in website revamps where I'm given creative control or a clear concise style to follow. My sites are clean, fast, and visually appealing. Where else I do well: Before I began consulting I worked as a corporate IT Pro doing everything from desktop support to managing a service desk with staff located throughout the United States. My background as a network admin makes me well adept at working with Google Cloud Solutions and troubleshooting TCP/IP or DNS issues with email or domains Industries I've worked with: Fin-Tech Insure-Tech Real Estate Defense Contractors Online Education Architects Interior Designers References and recommendations available on requestTCP/IP
WordPress PluginmacOSphpMyAdminWordPress DevelopmentGoogle Apps ScriptcPanelWebsite OptimizationWeb ServiceDNSWordPressDiviPHPElementorWooCommerce - $60 hourly
- 5.0/5
- (349 jobs)
With over two decades of industry expertise as an Infrastructure and Cloud Solutions Architect, with Microsoft Certified Azure Solutions Architect Expert, I contribute extensive knowledge to each project I engage in. My primary goal is to provide clients with top-notch technical solutions and support, prioritizing the establishment of enduring relationships and the continuous delivery of value. I am a full-time independent consultant, and I am passionate about leveraging my skills to help businesses succeed in today's rapidly evolving digital landscape. I am open to both short-term and long-term projects and ad-hoc support. I pride myself on my ability to work closely with clients to identify their specific needs and deliver tailored solutions that meet their unique requirements. My extensive experience includes technical support, Infrastructure Management, Cloud Computing, and Network/System Engineering. I am proficient in a wide range of products and technologies, including ✅ Microsoft Azure Solutions Architect, ✅ Azure Virtual Desktop ✅ Microsoft 365 (Office 365) Tenant to Tenant migration (Email, Teams, Onedrive, and SharePoint ✅ Microsoft Exchange Server [All Versions] and Exchange Online ✅ Microsoft 365 (Office 365) ✅ Migrate Microsoft 365 workloads such as Exchange Online, Sharepoint Online, teams, and OneDrive using Bittitan MigrationWiz, ✅ Remote Desktop Services (RDS) ✅ Microsoft Windows Server [All Versions], DNS, IIS ✅ Windows Server Remote Access VPN (SSTP, PPTP) and DirectAccess ✅ Hyper-V [All Versions] ✅ Microsoft Windows Active Directory [All Versions] ✅ SharePoint [All Versions] ✅ Microsoft SQL [All Versions] ✅ Dynamics CRM, Dynamics GP ✅ Lotus Domino/Notes ✅ Symantec Enterprise Vault ✅ Windows 7/8.1/10/11 ✅ Zimbra Mail Server ✅ Bittitan MigrationWiz Office 365 Migration . I hold several industry certificates, including Microsoft Microsoft Certified for the following titles. ⚡️Microsoft® Certified: Azure Virtual Desktop Specialty ⚡️Microsoft® Certified: Azure Solutions Architect Expert ⚡️Microsoft® Certified Azure Administrator Associate ⚡️Microsoft® Certified Solutions Expert: Productivity ⚡️Microsoft® Certified Solutions Associate: Windows Server 2016 ⚡️Microsoft® Certified Solutions Expert: Exchange Server ⚡️Microsoft® 365 Certified: Teams Administrator Associate ⚡️Microsoft® Certified Solutions Associate: Office 365 ⚡️Microsoft® Certified Solutions Expert: SharePoint 2013 ⚡️Microsoft® Certified Solutions Associate, Windows Server 2012 ⚡️Microsoft® Certified IT Professional (MCITP) Enterprise Administrator: Windows Server 2008 IBM ⚡️IBM Certified Associate System Administrator Lotus Notes and Domino 7 If you're looking for a reliable and experienced Infrastructure and Cloud Solutions Architect who can deliver results and help your business thrive, please don't hesitate to get in touch. I look forward to the opportunity to work with you and help you achieve your goals.TCP/IP
Microsoft Hyper-V ServerMicrosoft SharePoint AdministrationAzure App ServiceHCL DominoMicrosoft Exchange OnlineMicrosoft IISMicrosoft Active DirectoryDNSWindows ServerMicrosoft AzureMicrosoft Exchange Server - $30 hourly
- 5.0/5
- (84 jobs)
Unlock the full potential of Microsoft SharePoint and the Office 365 Suite (SharePoint, Teams, OneDrive, Planner, Power Platform, and more) to supercharge your business productivity. Let's collaborate to automate your operations and pave the way for sustainable growth. I'm eager to partner with you on this exciting journey! How I Can Empower Your Business: ✅ Craft, develop, and implement tailor-made applications and workflow automation solutions using the formidable Microsoft Power Platform, custom-fit for your industry-specific needs. ✅ Elevate your SharePoint environment with SPFx, breathing new life into your document management system, content management system, and specialized repositories through innovative web parts, extensions, and a deep understanding of SPOM, CSOM, JSOM, and Rest API. ✅ Seamlessly transition and modernize legacy SharePoint versions, including 2007, 2010, 2013, and 2016, leveraging OOTB WebParts, OData Rest APIs, PnP JS, Graph APIs, and ensure a consistent corporate brand. ✅ Expand your enterprise's horizons by enhancing collaboration within Microsoft Teams through Tabs, Bots, Web Hooks, and advanced customization. ✅ Harness my extensive experience in full-stack development to create robust web and mobile applications that meet your unique requirements. ✅ Effortlessly integrate legacy applications and custom data sources with your Microsoft business applications, eliminating the need to juggle multiple disparate solutions. ✅ Tap into the hidden potential of the Microsoft Office 365 Ecosystem. ✅ Seamlessly migrate your workloads to Microsoft Azure, transition your CRM to Microsoft 365, or make a smooth switch to Office 365 – I've got you covered. Why Collaborate with Me? 🚀 Solutions-focused consultancy that goes beyond task execution. 🚀 Over a decade of hands-on experience in web applications. 🚀 Microsoft Certified Professional, with a deep understanding of software and web development architecture. 🚀 Punctual project delivery, often ahead of schedule. 🚀 Meticulous project documentation to ensure clarity and transparency. 🚀 Employing cutting-edge tools for real-time project visibility and progress tracking.TCP/IP
Microsoft WindowsMicrosoft TeamsMicrosoft Bot FrameworkService-Oriented ArchitectureVonageWebRTCMicrosoft AzureMicrosoft SharePoint DesignerMicrosoft Active DirectoryMicrosoft Office SharePoint ServeriTextSharpAzure DevOpsASP.NET MVC - $80 hourly
- 5.0/5
- (135 jobs)
A result-driven IT professional with extensive experiences in multi platforms (Network, Systems & Firewall as well as Email Deliverability Platforms) engineering, administration and support with total working experiences in Singapore (6 years 8 months) and in Bangladesh (5 years 10 months). In-depth expertise in the implementation, analysis, optimization, troubleshooting and documentation of global network, firewall and systems as well as monitoring network platform that capitalizes on expertise in CISCO Routers/Switches, ASA, Checkpoint, Juniper SRX (Firewalls and Routers), Fortigate, Sonicwall, Monowall, IPTABLES firewalls, Linux/Unix (RedHat, Debian, SUSE, BSD, CENTOS, FC, Ubuntu), Windows 2000/2003/2012R2 platform, F5 LTM/GTM devices, Nokia checkpoint (Provider1 and Smart Manager). Dedicated to pursue further challenges in the field of Network & Security as well as System Administration/Engineering wherein my skills and knowledge will be highly developed and utilized. Maintain focus on achieving end-results while demonstrating strategic problem solving skills and ability to follow through multi-tasking job. Scope of Intervention • Installation (Routers, Switches, Servers, Patching, Applications, Firewalls etc) • Troubleshooting (Network, Firewalls, Systems, Apps etc) • Test & Commissioning (Network & Security projects for Routers, switches and firewalls & COLO servers) • Troubleshooting of Email Marketing platforms (Sendgrid, Mailchimp, JangoMail, AWS SES etc. as well as company hosted SMTP servers with Postfix, PowerMta, Exim and any other MTA issues for official Email Platforms or Bulk sending platforms. • Monitoring (Nagios, Opsview, Solarwinds, Cacti, HPNA, ENM, APPSVIEW, • BMC Proactive, Intermapper, HP Netcool, Splunk, eHealth, Sitescope etc.) • Ticketing – (Jira, Maximo, Salesforce etc.) • Documentation and Diagrams – (Sharepoint, Visionael and MS Visio etc) • Global Meetings (For projects and troubleshooting) Industries & Specialties • Telecommunication (VoIP and SMS) • Solutions Provider (Network & Security) • Managed Services Provider (Network, Security, Servers & applications) • Bank Network Infra (Network, Security & Systems)TCP/IP
Cisco ASACustomer Relationship ManagementRed Hat Enterprise LinuxFirewallEmail DeliverabilityVPNCisco Certified Network AssociateGoogle WorkspaceNetwork EngineeringNetwork MonitoringSystems EngineeringSMTPUbuntuWindows Server - $50 hourly
- 5.0/5
- (9 jobs)
5 years software developemtn expirience. Trading strategies, screeners, other trader helper tools for Binance, NinjaTrader, Interactive Brokers. Develop desktop and web-based software with C#, NetCore, WPF, Telerik, SciChart and other frameworksTCP/IP
API IntegrationAutomationNinjaTraderVue.js.NET Core.NET FrameworkJavaScriptC#MySQL - $40 hourly
- 4.9/5
- (4 jobs)
I specialize on interconnected systems using Raspberry Pis and low cost, network enabled devices like ESP8266 or ESP32s My main programming language is Python, I've developed websites, apps and REST endpoints using Flash as a micro-framework. I also have experience using Django and Celery as a distributed task queue. Before working on Python I worked as a PHP developer so I have skills on it and SQL databases. Web-wise I can handle HTML, Javascript and CSS. Boostrap and Jquery are the usual frameworks I use.TCP/IP
RESTful ArchitectureReactRaspberry PiHTMLDigitalOceanInternet of ThingsOpenShiftJavaScriptPython - $30 hourly
- 5.0/5
- (23 jobs)
As a Japanese standard software engineer with a wealth of experience in the analysis, design, development, and testing of high-performance systems, I am actively seeking challenging opportunities in the field of embedded systems. Here's why you should consider hiring me: 1. I have a proven track record of working with discerning Japanese clients who demand top-tier quality and adherence to strict schedules. 2. In Japan, I am accustomed to taking full ownership of projects, overseeing every aspect from initial design to implementation, testing, and comprehensive documentation. 3. Ensuring that clients are not only updated but also fully satisfied is my paramount objective. I am eager to collaborate with you and contribute to your team's success! お願い致します。TCP/IP
C#Visual BasicFreeRTOSModbusMultithreaded ProgrammingESP32ArduinoFirmwareEmbedded CPythonCC++ - $57 hourly
- 4.9/5
- (15 jobs)
Good working day! I'm here to provide systems work, live, update, and development. I want all the products I develop see the light of day, sell successfully, and become better for users and owners. If you ask me what is the meaning of life, I'll answer – in programming. So, my job is programming, my hobby too. By the way, if you need a first-class programmer – I'm here. I’ve been providing excellent firmware development services for over 10 years. It confirms my status 100 % TOP rated + on Upwork. Perfectly functioning devices and satisfied customers will speak better for me. Do you want to save your time on pointless meetings where engineers ask you what to do instead of doing it? Do you want to increase your income through our productive cooperation? Do you want a perfect, functioning, advanced product that you and your customers will like? I'll help you find a solution for your problems as soon as possible to implement them at a high level. The main goal is to help you achieve great success and make results. The most important thing is the product. It will be innovative, progressive, fresh, and efficient. I'll develop firmware, support it, and add new features, thus improving the product and the owner's profit. I'm always open to communication and find it useful. The more feedback I receive from you, the more I'll give you in return. Then I would like to tell you exactly how the cooperation goes. And now you can look at reviews of my work left by my clients on Upwork. I want you to understand the most important benefits that I can provide you are time and freedom. I can independently make decisions without disturbing the customer. You can go about your business while your project is running. At the same time, I work on technical tasks and take responsibility for my actions. So, I offer long-term cooperation which means the full cycle of device development and support. Please note that the latest versions are released as soon as new features are added. Every next release brings us closer to the final version of the device. Eventually, I would like to give you a guarantee. Guarantee of 100% satisfaction with the result. Unfortunately, my resources are limited, so I don't take on many projects. If you have a clear understanding and vision of your project and want to start right now, just write to me. Let's talk, discuss, make a plan and grow your business. If you still have doubts about something, then I have a consultation service – where we’ll analyze all the issues together that will help you see the future of your project, understand the next steps, and possibly start our cooperation.TCP/IP
AWS IoT CoreFirmware ProgrammingFirmwareCReal-Time Operating SystemEmbedded SystemnRF52ArduinoEmbedded CMicrocontroller ProgrammingSTM32ESP32AVR Microcontroller - $75 hourly
- 5.0/5
- (19 jobs)
Need a Cloud Engineer to turn your vision into a scalable, cost-efficient, and secure solution? With expertise in designing and implementing AWS cloud-based solutions, I focus on boosting your business's efficiency, scalability, and security. Whether it's cloud architecture design or full-scale implementation, I create high-performance, cost-effective solutions tailored to your business goals. Having led successful cloud projects across industries—such as security systems, data-driven applications, and eCommerce—I have a proven track record of transforming complex technical needs into tailored solutions that enhance operational performance. What do my clients say? [Curated from a recent Review by Kat Gordienko and George Nicola, Co-Founders at the Builty Startup] "Harut exhibits incredible talent in developing elegant solutions for codebase organization, cloud infrastructure, database design, and data pipelines. He is an exemplary architect and skillful engineer with expansive knowledge across many domains and thoroughly understands the requirements of a customer-focused enterprise. He introduces novel solutions with a deep level of intuition and takes a scholarly approach by performing comprehensive research. He has impeccable ethics and collaborates with other team members as a resourceful mentor." 🚀 Standout Achievements During 2020-2023, I served as the lead specialist on several key projects for "Glasswall Solutions," a UK-based computer security startup. At that time, the company was seeking to establish its presence in the computer security industry. My dedicated efforts, helped them to successfully scale the company into a significant player in the field. Today, Glasswall Solutions partners with prominent organizations such as NATO, Microsoft, and national security centers across the US and UK. 🔑 AWS Cloud Engineer Expertise • Cloud Infrastructure: AWS CloudFormation, AWS CDK, Terraform • Containerization & Orchestration: Docker, Docker Compose, Kubernetes, AWS EKS, AWS ECS, AWS Fargate • Data Warehousing: AWS S3, RDS, DynamoDB, MongoDB, PostgreSQL, MS SQL • Data Management & Monitoring: ElasticSearch/OpenSearch, Grafana, AWS CloudWatch • Security: Public Key Infrastructure (PKI), Encryption, Key Management, Identity and Access Management (IAM), AWS Cognito • DevOps: CI/CD Pipelines, GitHub Actions 🌟 Why Choose Me? • Over 20 years in commercial IT projects • AWS Cloud Engineering expertise since 2010 • Proven history of building scalable and maintainable systems • High-impact results with Upwork Expert Vetted status ⚡ Ready to Bring Your AWS Cloud Engineering Project to Life? • Invite me with your project details • Let’s set up a consultation to understand your goals • I’ll tailor a proposal for your project • Once aligned, together we craft a secure, performant, future-ready solution Let’s collaborate to drive your project to success!TCP/IP
DevOps EngineeringServerless ComputingPythonMicroserviceDockerKubernetesSaaSIaaSCloud EngineeringCloud ArchitectureCloud ComputingSoftware DevelopmentSoftware Architecture & DesignMicrosoft AzureAmazon Web Services - $30 hourly
- 4.9/5
- (30 jobs)
I have over fifteen years of experience as an IT specialist. I'm a Microsoft Certified IT Professional. I have also worked on Cisco/Juniper routers and switches. I am CCNA/CCNP, CCNA (wireless), Aruba Wireless (ACMA), JNCIA (Juniper), and ITIL certified. Technical Skills: Building a website using WordPress. Network Automation using Python and Ansible Support Virtual servers and Workstations Strong knowledge of Windows OS, MAC OS, Android, and iOS. Solid experience in Backup systems, Networking, virtual machines, and firewall setups. O365 and Google Workspace administrator Computer software and hardware troubleshooting. Deployment of VPN tunnels and site-to-site connectivity Configuring routers and switches for internet and office connectivity Configuring firewalls to secure home/office network Writing scripts to automate network administrator tasks Creating presentations and technical documentation Customer Service: I have diverse experience, working in renowned IT companies such as HP and Accenture. I have worked as level 2 and level 3 IT support, receiving calls from customers and providing assistance via phone, email, and chat. Teaching Skills: I have conducted several training internally within my team related to Cisco, Aruba, Juniper, and Network Automation with Python. I can teach (1 on 1) CCNA, CCNP, JUNOS, Aruba Wireless, and Network Automation with Python/Ansible/Nornir/NapalmTCP/IP
Cisco Certified Network AssociateJuniperAnsibleArubaCisco IOSNetwork EngineeringJNCIA-JunosITILCisco RouterIPv6Virtual LANPythonVPN - $40 hourly
- 4.8/5
- (93 jobs)
➤ Expert in Fortigate, Sonicwall, Sophos, pfSense, OPNSense, Cisco, Meraki, Unifi, VPN etc. 🥇 100% JSS & Positive Feedback ☑️ 12+ Years Experience ☑️ 90+ Projects Delivered ⭐️Top Rated Plus ☑️ 75% Long-Term Client ➤ Full Time Freelance Consultant and Engineer. Worked as Sr Information Specialist for many organizations and in multiple MSP environment. ➤ Expertise is Office Infrastructure (Network- Router, Switch, Access Point, Server, NAS, Printer & Security - Firewall, CCTV, Biometric) Design , Implementation, Management, RCA Troubleshoot and Security Implementation & its enhancement. ➤ I have successfully done multiple Network and Firewall Migration with proper planning and documentation. ➤ Well versed in configuring and managing Firewall security appliances. Which includes firewall rules, VPN, IDS/IPS, Web Filter etc. Ensuring optimal security and performance. ➤ Prepare and maintain detailed documentation of network configurations, security policies, and standard operating procedures. SKILLS AND EXPERIENCES ::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Firewall & VPN Fortigate all Range; FortiManager, FortiAnalyser, FortiAP, FortiSwitch Checkpoint Firewall & MDS. Cisco Meraki MX & Cisco ASA. PfSense; Opnsense; Zenarmor; Unifi Firewall, Gateway & EdgeMax. Sophos Firewall - Desktop and Enterprise Models. SonicWall TZ, NSa Series Firewall. Firewall VPN - IPSec site to site; Remote access VPN- SSL/L2TP/PPTP; OpenVPN deployment. Cloud Technologies AWS Virtual Network & VPN. Azure Virtual Network & VPN. Cloud Firewall: Fortigate; Pfsense ; OpenVPN. Cloudflare Domain & DNS Management, Access. Cisco Umbrella Perimeter 81 Routing Routers Handled: Cisco Router SMB & ISR series Advance Routing Protocol Design- OSPF, EIGRP, and BGP. Redistribution. NAT, Policy-based Routing, QoS, Traffic shaping. ISP load balance and performance routing. Switching Switch Handled : Cisco Switch- CBS Models; Catalyst Models ; Cisco Meraki MS and Fortigate switches. Aruba Switch and Unifi Switches. STP, VLAN, Trunk. Link Aggregation (PAGP, LACP). First Hop Redundancy Protocol (HSRP, VRRP) Switch security & Switch Stacking. Server and Services Windows Domain Controller, DNS , DHCP, IIS, RDP & File server. Storage Server: Synology NAS & TrueNAS; RAID Technology. Network & Protocol Stack: Wireshark Packet Analysis. Troubleshoot LAN/WAN/Application level issue. Perform RCA with report. Capturing and deep Analyzing of Network packets using Tcpdump etc. Handle tools in Kali Linux for scanning port, analyze web traffic, VAPT. ----------------------------------------------------------------------------------------------------------------------- #Network #Security #Fortigate #VPN #SDWAN #Cisco #Pfsense #Sonicwall #Unifi #Meraki #AWS #Fortinet #Firewall #Cloud #VPC #Network Architecture #IPS #Malware Protection #NGFW #ZTNA #SASE #CASB #Cloudflare #Zero Trust #Perimeter 81 #Active Directory #Security Consultant #Sophos #Wifi #Switch #Storage Server #Synology NAS #TrueNAS #RAID -----------------------------------------------------------------------------------------------------------------------TCP/IP
SonicWallCisco MerakiFortinetUbiquitiFortiGate FirewallMicrosoft VisioNetwork AdministrationPfSenseNetwork DesignAmazon Virtual Private CloudCheck PointNetwork SecurityCisco ASAFirewallVPN - $40 hourly
- 5.0/5
- (38 jobs)
hardware development (Diptrace, Kicad, Upverter), firmware development in C, C ++, testing tools in Python, SPI communication, I2C, Serial, TCP / IP, HMI, real time systems (FreeRTOS, ThreadX), and much more...TCP/IP
EagleCircuit DesignHardware PrototypingAnalog ElectronicsFirmware ProgrammingPCB DesignEmbedded SystemPythonC++ArduinoMicrocontroller ProgrammingC - $32 hourly
- 4.9/5
- (18 jobs)
I am a research engineer in the area of computer networking. I am experienced in writing socket-level networking code, as well as developing and evaluating innovative technical solutions. Much of my previous work is documented in the form of published scientific articles, as well as a few patents. I am now eagerly looking forward to pivoting away from academic work, towards software development or tutoring in computer science.TCP/IP
Computer NetworkLinuxMatplotlibSocket ProgrammingResearch & DevelopmentSoftware DevelopmentPythonC++C - $15 hourly
- 4.8/5
- (23 jobs)
I am Priya Gupta and having solid experience in Web designing and development. Why choose me — Top Rated Designer with 96% recommendation, long-term commitment, and 100% Job Success → Quality: stand out from the crowd and boost conversions → Efficiency: Cost-effectively work rather than $30-50/hr designers → Strong work ethic: Reputation more than the $30k+ earning I am proficient in tools such as: ❤️ Figma ❤️ Adobe XD ❤️ Sketch ❤️ InVision ❤️ Framer ❤️ Blender ❤️ Adobe Photoshop ❤️ Adobe Illustrator 🛠 My Skillset: ✅ UX UI Design ✅ Website Designs ✅ Landing Page Designs ✅ Blockchain Landing Page ✅ Cryptocurrency dashboard or dApp ✅ Prototypes ✅ Wireframes ✅ Logo Design ✅ Animation ✅ Illustration ✅ Shopify themes, WordPress landing page, Wix, and many more ✅ Web development: React, Redux, Vue.js, Vuex, jQuery, Node.js, TypeScript, Bootstrap, MongoDB, and moreTCP/IP
AWS Cloud9MongoDBNext.jsTypeScriptLaravelPHPFirebaseAngularNode.jsReduxReact - $95 hourly
- 5.0/5
- (7 jobs)
I am a Software Developer and Network Engineer by education and trade (my resume can be found below). Beyond keeping my technical knowledge current and relevant It is most important for me to really understand my clients needs and keep my work focused on producing the best results for my clients and the project at hand. - Go Programming Language and Micro-services - Cloud Automation with Terraform and Ansible - Cloud Automation Providers (AWS, Google and Digital Ocean) - Responsive and Reactive Frontends with Vue and React - Databases include MySQL and MongoDB, etc. - REST API, GraphQL, MQTT and others - Embedded Development with C++ and esp32 - All things IoT I am a full time freelance software developer, I am not "moonlighting" when we work together you 100% of my attention. When we work together you will get not only the depth of my technical knowledge, but you'll also get these "soft" skills: * Competence: smart, current on industry practices, manage complex tasks * Communication is Clear, Concise and Timely * Responsive: I will not disappear, you will hear from me by days end * Empathy: I understand how complex and mysterious software can be * Dedicated to YOUR project and needs, I work for YOU (I do not overbook) * Transparency: our processes are public, we do not hide anything * Schedule: incredibly good at completing projects on time I am very comfortable working on new greenfield projects as a self starting developer, as well as building and leading a team of engineers to finally deliver projects that have failed, are incomplete or have simply become out dated. I see software projects from the big picture, *always* with the business case in mind. Please take a look at my portfolio and reviews to get a better sense of how I deliver services to my clients. My experience has been in engineering and leadership roles as well as all aspects of the software development life cycle (architecture, design, development, testing, debugging). Do you have any questions for me? I will gladly chat for 10 - 15 minutes to answer your questions or discuss your project with no commitment.TCP/IP
GolangMySQLGitComputer NetworkLinuxGoogle Cloud PlatformJavaScriptC++PythonRaspberry PiCESP32Arduino - $50 hourly
- 4.6/5
- (4 jobs)
I am Bohdan from Ukraine. I am here to look for long term project. Thank you. - Desktop, low level driver, Andriod app - Windows Presentation Foundation (aka WPF). - VPN, Proxy, Networking (from raw TCP(UDP)/IP to HTTP web-services, Wifi ), PRTG, CISCO. - Video / Audio streaming over the network using LIBVLC, FFMPEG, GSTREAMER.TCP/IP
GolangRustAPINetwork AnalysisNetwork SoftwareKotlinPythonJava.NET FrameworkQt FrameworkDelphiC#C++ - $105 hourly
- 4.9/5
- (261 jobs)
I am expert in DDoS attack protection and mitigation. Also I am: Enterprise-level Linux system administrator, system engineer, cloud designer, DevOps and AWS expert with 15+ years of expertise. I specialize in AWS architecture and cost optimization, Cloudflare DDoS mitigation, Magento, Wordpress or custom CMS hosting speedup. ** LAMP/LEMP(Nginx) administration and server security hardening (Ubuntu, Debian, Centos,RHEL,HAProxy, Ruby deployment, DevOps, Python/Django deployment DevOps,Nagios, fail2ban, CloudFlare, Elasticsearch, Kibana, ELK stack..) ** Codeship deployments ** Docker, Docker-compose, Docker swarm, Let's encrypt ** Varnish cacheing (Magento, WordPress, Skadate...) w/ SSL ** Amazon web services - AWS expert/architect/design (EC2, ECS, VPC, RDS, S3, Route53, Cloudfront, Elastic Load Balancer, AutoScaling, etc..) ** DDoS mitigation and prevention ** Nginx rewrites ** Google pagespeed ** Linux troubleshooting ** VPS providers: Linode, Rackspace, Amazon(AWS), MediaTemple, HostGator, Cloudflare, MaxCDN, CloudFront, NameCheap, GoDaddy, DigitalOcean, EC2, Bluehost ** Parallels Plesk ** D2C.io docker stack ** Odoo/OpenERP installation ** VPS administration ** AWS EC2 administration ** VMware vSphere ** elastic container service ** NewRelic ** fail2ban ** openswan ** HAProxy ** keepalived, vrrp ** elasticsearch ** Nagios monitoring ** Elastic Load Balancer ** LINUX deployment and migration ** Rackspace Cloud Services ** Ruby on Rails app deployment ** Python - Djengo app deployment ** CPANEL, PLESK, WEBMIN, SHELL/SSH administration ** proftpd, pure-ftpd, pure ftp ** DNS, BIND, PowerDNS ** SSL certificates ** Site migration ** Network troubleshooting ** CSF firewall ** VPN ** Cisco, Mikrotik, Juniper Networks, Extreme Networks.. ** Linux PENTAHO deployment ** Squid, AiCache, AiScaler EXPERIENCE: Expertize in Linux networking and service management, such as APACHE server, Nginx, LAMP, LEMP, LNMP, MYSQL, POSTGRESQL, tcpdump, haproxy, WIRESHARK, tshark, URL rewrite. I possess 15+ years of extensive experience in network and Linux administration, support, and Core Network design in a Telecom environment. My profound expertise includes routing, BGP, VPN, Layer 3 networking (Routing), Layer 2 networking (LAN switching), VLAN, OSPF, RIP, as well as network and packet troubleshooting. I have extensive experience with a wide range of network equipment, including but not limited to, Cisco, Juniper, Extreme, HP networking, MikroTik RouterOS, Ericsson OSS, and Redback Networks. Experience with various providers such as: -AMAZON WEB SERVICES (AWS, EC2..) -RACKSPACE -HOSTGATOR -GoDaddy -MediaTemple -Cloudflare -NameCheap -LINODE -QuickWeb -HAProxy - reverse proxy, layer 7 routing -etc.. -WHMCS RESELLER setup and migration on project or permanent basis. Including DNS, EMAIL, WORDPRESS migration -CPANEL, PLESK, WEBMIN, H-sphere, SHELL administration -SSL certificates, let's encrypt, lets encryptTCP/IP
CloudflareWeb HostingSSLPleskcPanelAmazon EC2Linux System AdministrationNetwork AdministrationLAMP AdministrationRed Hat Enterprise LinuxNGINXSystem AdministrationAmazon Web ServicesCentOS - $95 hourly
- 5.0/5
- (91 jobs)
I am a software architect & developer with over 18 years of experience. I specialize in designing, developing and connecting various systems and technologies together, starting from embedded systems, through web, mobile and desktop applications, ending on backend (server-side) software. I'm also system administrator and a Linux-geek. Feel free to contact me if you have any work to do! Especially C++/C/Python/C#/Linux related. You can find much more information on my website. I also encourage you to check my GitHub profile.TCP/IP
System AutomationLinux System AdministrationSQLHTML5C++JavaPythonC#C - $65 hourly
- 5.0/5
- (57 jobs)
I have been working as a Linux server administrator for more than 20 years. In addition to that, I have extensive experience as a senior network engineer for both enterprise and small office/home office (SOHO) clients. My background also includes a strong expertise in VOIP engineering for Internet service providers (ISPs), with certifications in HDwifi and wifi design/administration. I have worked as a WISP engineer, handling routers and switches from Mikrotik, Cisco, and Juniper. Moreover, I possess the skills to create custom shell scripts using bash, python, and expect. Currently, I hold certifications as a Ubiquiti UBWA, UEWA, and UBRSA certified admin. Over the past 10 years, I have gained valuable experience in Vmware, specifically with Veeam backup, Nakivo, and AS backup integration, configuration, and administration. I have worked with Cisco UCS and Nimble infrastructure, ensuring smooth operations. Additionally, I am well-versed in Zerotrust network VPN, Zerotier, Zscaler, and hold an AWS Certified Associate certification.TCP/IP
VMware AdministrationSession Initiation ProtocolStorage Area NetworkCisco ASALinux System AdministrationCisco IOSDatabase AdministrationCloud Computing - $40 hourly
- 5.0/5
- (41 jobs)
Back-end engineer with a lifelong passion for software, databases, and scalable distributed solutions. Over the 𝟭𝟯+ 𝘆𝗲𝗮𝗿𝘀, I have developed or contributed to nearly 𝟱𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 in a variety of work like developing from stretch and scaled up to 1M+ user base, scaled from 1000 request/day to 𝟭𝗠+ 𝗿𝗲𝗾𝘂𝗲𝘀𝘁/𝗱𝗮𝘆, and other technical works. I have worked with clients in various domains like healthcare, fintech, ed-tech, real estate, government agencies, and the non-profit sector, and have 𝘄𝗼𝗿𝗸𝗲𝗱 𝗳𝗼𝗿 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀 𝘀𝘂𝗰𝗵 𝗮𝘀 𝗨𝗽𝘄𝗼𝗿𝗸 (yes I worked for Upwork itself, a listed company on the NASDAQ exchange), 𝗟𝗲𝘁𝘀𝗵𝗲𝗚𝗼 (a listed company in Botswana Stock Exchange), 𝗢𝗖𝗢 𝗚𝗹𝗼𝗯𝗮𝗹, and many more startup companies in the world. Do you like Upwork's Reports & Time tracking feature? I am one of those developers who built that :) ✅ How can I help you ✓ I can handle your all end-to-end requirements analysis, UX, development, testing & delivery so you can focus on your sales & operations ✓ I can extend/develop your MPV product to production-ready ✓ I can develop products from scratch until the final delivery and support with maintained code quality and proper code coverage ✓ I can maintain your currently live products in the most optimum way by keeping quality and customer experience at first place in mind and with the minimum team and can save your cost ✓ I can choose the right technology stack and tools for your solution based on real needs and can save costs ✓ I can manage the team, do code reviews, handle CI/CD and releases, support live systems ✓ I can understand and implement the most difficult parts of software systems at very large-scale platforms like Upwork, (I am one of the Upwork platform devs) ✅ Expert areas - Java based back-end frameworks like Spring Modules (Spring MVC, Spring Security, Spring AOP, Spring Rest, Spring Data/JPA) & ZK (Zkoss) - ECMS implementation with Alfresco Content Services 4.x, 5.x, 6.x and Alfresco Process Services (Activiti) - RDBMS (MySQL, PostgreSQL, Oracle) - Graph/Document Databases MongoDB and DynamoDB - Web Crawlers with all features - Microservices based architecture implementation with Spring boot, Spring Integration and Apache Camel - AWS experience with RDS, SQS, SNS, SES, S3, and EC2 Instances - AWS API implementation experience - Queue based implementations with ActiveMQ/SQS - Test driven development implementation with unit and integration test cases with Junit/TestNG + Mockito + Spring - Database integration frameworks like JDBC/Hibernate/Sprint Data (ORM) and Spring Mongo - REST based Web Service/API implementation with Spring REST - CI/CD implementation with (Bamboo + Jenkins + Maven + Nexus + GIT(Bitbucket/Gitlab/Github)) - Payment Gateways implementations like Paypal and Stripe with debit/credit card integration - Solr/Lucene/ElasticSearch search engine integration - Jasper Reports (with DynamicJasper as well) - Agile Methodology understanding all terminology - Experience with implementing very complex queries with MySQL db - Java based Servers Tomcat/JBoss - Repositories like Git, SVN, P4V(Perforce) ✅ What my clients says ⭐⭐⭐⭐⭐ "Vishal is best developer I have worked with till date. He is prompt responsive, an incredible problem solver, very professional, highly skilled and great team leader. He handles our portal continuous development including all project phases starting from requirement gathering(calls), task creation with all details, estimation, development, deployment on all environments, testing, creating wiki pages, choose right technology stack and AWS resources and manage tickets! He is handling dev team and also do development himself and supports everyone. Will certainly work with him again when we restart the project development! Highly recommended developer." 👤 Hugo Galicia ( CEO @ chicagodealvault.com ) ⭐⭐⭐⭐⭐ "It was a highly positive experience working with Vishal. He was conscientious, always doing his due diligence to clarify any uncertainties before starting work. He gives accurate estimates of effort/time required for work, and either delivers on time or early. Overall a very reliable and dependable worker. We hope to work together with him soon. Highly recommended!" 👤 Dominik Bieringer ( CEO @ Kandu ) ⭐⭐⭐⭐⭐ "Very experienced and diligent contractor" 👤 Abhijit Dhar ( VP - Technical Services @ Whitehat Virtual Technologies ) ⭐⭐⭐⭐⭐ "Vishal is an excellent java engineer, with great business logic, self-motivated, with deep technical knowledge. He jumped right in and understood the current project architecture with minimum KT and limited documentation. He is always eager to solve new issues. I highly recommend him and will definitely work with him again, if opportunity permits. A pleasure to work with" 👤 Chris Adams ( CEO @ eDataSource )TCP/IP
Project ManagementProject PlanningWeb ApplicationSaaSIntegration TestingJ2EESpring BootMicroserviceHibernateSpring FrameworkPostgreSQLJUnitAmazon DynamoDBJavaMySQL - $50 hourly
- 5.0/5
- (30 jobs)
👋 Hi, I'm Mark, CEO and CTO at Pinely. I lead our development projects, ensuring they align perfectly with your business objectives. We provide: Web & Mobile Apps: We develop on iOS, Android, and web platforms. Desktop Applications: Tailored software for Windows, MacOS, and Linux. AI & ERP Solutions: We integrate advanced AI and efficient ERP systems into your operations. Client Benefits: Start right away with rapid delivery. Straightforward, clear updates without jargon. Consistent results across various industries. What Clients Say: "Pinely delivers on promises." "The Pinely project manager really cares about our project." "Working with Pinely, we've achieved big things." Check our Clutch profile for more reviews. Let's talk and solve your challenge together. Regards, Mark 🌲TCP/IP
SQLReduxNode.jsAgile Project ManagementReactAuth0MongoDBElasticsearchTelegram APIJavaScript - $98 hourly
- 4.5/5
- (158 jobs)
Looking for challenging new projects which can effectively use my talents and creativity, to generate cost effective software solutions. I'm a world class C programmer (primarily on Unix/Linux) and I'm used to making "impossible" tasks "possible". I have a great deal of expertise in: * real time embedded systems * cross compilation/software construction * source control * network programming * system administration * kernel level programming/device drivers * image processing * performance and metricsTCP/IP
Image ProcessingCApache SubversionAgile Software DevelopmentEmbedded LinuxLinux System AdministrationDriver DevelopmentFreeBSDGitAssembly LanguageVersion ControlObject-Oriented DesignUnix System AdministrationDHCP - $15 hourly
- 4.6/5
- (62 jobs)
#AWS, #Azure, #VMware #ManagedCloudServices (#MSP) #ServerAndEmailMigration #SLA 24/7/365 #Office365 Administration, #Exchange Administration #AWSDevOps, #AzureDevOps #ServerAdmin #BackupSolutions, ,#ConnectWise #SolarWinds #ManageEngine #NinjaRMM #Kaseya #Atera #Automate PROFESSIONAL SYNOPSIS: A competent professional with over 9+ years of extensive experience in IT Infrastructure Planning & Management, Windows Servers, Networking, System Administration, server support, Data Center Support, Enterprise Antivirus management, Backup Management (Windows Backup, Symantec Backup Exec, Acronis Backup and Other Tools). Windows Server, Production server, Active Directory, Print server, Exchange Server2010, DNS Server, DHCP Server, Web Server, Linux (Cent-OS, RHEL). SKILLS & EXPERIENCE: - Microsoft Server 2016. 2012, 2012 R2, 2008, 2008R2 with Active Directory Services and DNS server Management. - Microsoft files Server and print server management. - Micosoft Group policy management. - Virtualization using Microsoft HyperV Platform and VMWARE platform. - Backup Management (Symantec Backup and Acronis). - Microsoft Exchange server management. - Webhosting and webserver management. - Managing Linux Mail Server (Postfix with Mail filtering solutions). - Remote Access Server & site to site VPN management.TCP/IP
Microsoft Active DirectoryMicrosoft AzureCitrix Virtual Apps & DesktopsWindows ServerAmazon Web ServicesOffice 365DNSMicrosoft Exchange ServerLinux System AdministrationMicrosoft Hyper-V ServerWindows AdministrationMac OS X AdministrationVMware ESX ServerCentOSCisco Meraki - $56 hourly
- 5.0/5
- (88 jobs)
ITIL Certified IT Professional | Azure & M365 Specialist | Cloud & Security Solutions Expert With over 14 years of experience in IT operations, cloud infrastructure, and security, I specialize in delivering end-to-end solutions on Azure and Microsoft 365 platforms. My expertise spans across designing, building, and optimizing IT environments with a strong emphasis on cloud security, virtualization, disaster recovery, and business continuity. Core Competencies & Technical Expertise: Azure Cloud Infrastructure: Extensive experience in designing and managing scalable Azure IaaS, PaaS, and SaaS solutions, including Azure Virtual Machines, Azure Active Directory (AAD), Azure Networking, and Azure Storage. I’ve successfully executed Azure migrations and cloud optimizations, ensuring cost-effective, secure, and high-performance environments for enterprises. Microsoft 365 Administration: Advanced proficiency in the Microsoft 365 ecosystem, including Exchange Online, SharePoint Online, Teams, OneDrive for Business, and Intune. I manage seamless tenant migrations, integrations, and ongoing administration, ensuring optimal functionality and performance across Microsoft 365 services. Microsoft 365 Security & Compliance: Expertise in securing Microsoft 365 environments using tools like Defender for Office 365, Microsoft Defender for Endpoint, and Advanced Threat Protection (ATP). I design and implement robust security measures, including Data Loss Prevention (DLP), Multi-Factor Authentication (MFA), Conditional Access, and Endpoint Security to safeguard against cyber threats. Microsoft Defender XDR (Extended Detection and Response): In-depth knowledge of Defender XDR for comprehensive threat detection and response across Microsoft 365 and Azure environments. I specialize in configuring Defender for Identity, Defender for Office 365, and Defender for Endpoint to deliver enterprise-grade protection against advanced threats and breaches. My approach ensures proactive threat hunting and incident response, reducing potential vulnerabilities. Hybrid Cloud Solutions: Extensive experience in integrating on-premises environments with Azure cloud services, leveraging Azure AD Connect and Active Directory Federation Services (ADFS) for secure hybrid identity management. This ensures seamless access to both cloud and on-premise resources, enhancing flexibility and security. Azure Security & Compliance: Proficient in configuring Azure Security Center, Azure Sentinel, and Azure Policy to ensure secure and compliant cloud environments. I implement best practices for securing cloud infrastructures, managing Identity & Access Management (IAM), and mitigating risks associated with cloud computing. Disaster Recovery & Business Continuity: Expertise in implementing Azure Site Recovery and Azure Backup to build reliable disaster recovery and business continuity strategies, ensuring data protection, minimal downtime, and rapid recovery in case of system failures. Cloud Optimization & Cost Management: Skilled in Azure cost management and optimization techniques, ensuring that clients maximize the value of their cloud investments while maintaining security and compliance. My approach includes monitoring usage, right-sizing resources, and utilizing Azure Reserved Instances to reduce cloud expenditure. Why Work With Me? Azure & Microsoft 365 Expertise: I bring a deep understanding of Azure cloud solutions and Microsoft 365 administration, focusing on both operational efficiency and security, ensuring that your cloud environments are not only optimized but protected from evolving threats. Security-Focused Approach: With a strong focus on cloud and endpoint security, including Microsoft Defender XDR capabilities, I offer comprehensive protection across your Azure and Microsoft 365 environments, reducing risks and ensuring compliance with industry standards. End-to-End Solutions: From cloud infrastructure design to disaster recovery and security, I offer complete solutions tailored to your organization’s needs, ensuring a robust and secure digital transformation journey. If you're looking for a highly skilled professional to enhance your Azure infrastructure, secure your Microsoft 365 environment, or implement advanced security measures like Defender XDR, I can help you achieve your goals and ensure the smooth operation of your IT systems.TCP/IP
PaaSIaaSSaaSCloud MigrationCloud SecurityMicrosoft Azure AdministrationEmail CommunicationMobile Device ManagementEmail SecurityMicrosoft Endpoint ManagerAutopilotGoogle Workspace AdministrationCloud EngineeringServer VirtualizationVPN - $45 hourly
- 5.0/5
- (154 jobs)
I am developer and infrastructure admin with financial education and more than 10 years experience in banking. ................................................................. .................................................. .......................................... .............................TCP/IP
Web ProxyLinuxLinux System AdministrationNGINXVue.jsGitNode.jsWeb DevelopmentC++C#GolangPHPPythonJavaScript - $40 hourly
- 5.0/5
- (41 jobs)
I am a software engineer specialized in C Linux development with more than 10 years of experience. Although I have the most experience in C, I have several years of C++ (C++ 11) development experience as well. Area of interest - Linux system programming - Command line tool development - daemon development - secure coding - clean code Skills summary: - C Linux programming - Bash scripts - Network programming (sockets, packet capturing) - C++ (C++11) - PHP extensions Frameworks / Libraries / Technologies / Tools: - CMake / autotools - gdb, valgrind - libcurl, rapidjson, ipoque PACE2 (DPI), libarchive, glib-2.0, Qt, boost, ip2location, openssl, zlib, pfring, nanomsg, ... - REST API, JSON-RPC - ssh - command line tools - MySQL, SQLite - Arduino development - Raspberry PiTCP/IP
Embedded CAVR MicrocontrollerRaspberry PiEmbedded SystemArduinoC++CAtmel AVRSocket ProgrammingSSHLinuxVimlibcurlValgrindBash - $60 hourly
- 5.0/5
- (37 jobs)
I am C and C++ expert in development for Linux, My main domain is computer networks: fast path, protocols. I am able to complete full cycle of development on server-side with high quality: from basic requirements to delivery with minimum supervision, including: requirement detailisation, planning, coding, debugging, deployment. I am strongest at: C,C++, Network Protocols, Python, Bash, Perl, TCL, Debugging, QT(PyQT), GNU tools, Golang Areas: Network protocols parsing and implementation Linux distributives customiztions Apache Modules Linux kernel modules Cloud computings Storage SystemsTCP/IP
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