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Rating is 4.7 out of 5.
4.7/5
based on 456 client reviews
  • $50 hourly
    Asterisk | Kamailio | FreePBX | Big data | AWS |Azure |GCP | Linux | Unix | Ubuntu | Debian | Puppy | VoIP Expert | IBM Watson | Google API | A2Billing | WebRTC | PHP | JSP | MYSQL | Oracle|Ansible|Docker Thanks for looking at my profile! I'm an IT Engineer offering more than 15 years of professional-level experience. I have deployed many Enterprise and Mid-Size Cloud, Network, and VoIP solutions worldwide. I am a professional Freelancer under a single roof with excellent communication skills, a fast learner, computer literate, can handle multitasking work and a very reliable contractor. Particularly interested in client/server and relational network design & develop using C/C++,Java,Php and C#. Always been interested in migration projects, as well as close interaction with the VoIP platform. I am always eager to provide quality work to my honorable clients. Hourly or fixed-price contract rates are negotiable depending on the work. I’m always working in a friendly environment so that we can make long-term business relationships, and feel honored to have a continuously growing list of happy clients with positive feedback on my work. I will do my best to satisfy my clients to the fullest. Do not hesitate to ask any questions you may have or discuss any ideas I may help you with. I am very easy to talk with.
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    VoIP Software
    Natural Language Processing
    MySQL
    Linux System Administration
    Telecommunications Engineering
    IBM Watson
    VoIP Administration
    FreePBX
    Session Initiation Protocol
    Red Hat Enterprise Linux
    VICIDIAL
    Google APIs
    Amazon Web Services
  • $40 hourly
    I have been developing Asterisk based telephony systems for more then 10 years and have very extensive, more than 20 years, Linux development experience. I have designed, developed and supported Asterisk based applications on the AWS EC2 and Google Compute Engine instances, which comprise both back and front-end components and include complex dial-plan and AGI/ARI/AMI programs, in the following areas: - Hosted multi-tenant telephony - Audio/Video Conference - Intelligent telephony load and stress test - WebRTC video, audio conferencing, dialing and screen sharing - Phone provisioning - SIP trunking - Load balancing - Database RealTime configuration I have experience in developing Asterisk custom modules that could be integrated into dial plan applications and communicate with client back end servers using sockets. I have very extensive customer support experience and good at writing user guides and developer documentations.
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    Cloud Migration
    VoIP Software
    C
    PHP
    WebRTC
    Android App Development
    JavaScript
    Kamailio
    Linux System Administration
  • $16 hourly
    I am working as a full-stack developer since 2012 year. I am a responsible, punctual and mindful professional. I am looking for a interesting projects (short term/long term) to apply my knowledge and skills while building up and growing your business. I am developing stable, maintainable and scalable server-side applications because I using best practices only. In addition I am evaluating existed application code and suggest possible optimizations and adopting best practices. I am in top 10% in PHP Test, Laravel Upwork Test and in top 20% in MySQL Test. To improve my skills I'm always interested in difficult and interesting work. I'm hard working, communicative, self-motivated and responsible person. My technical skills: - PHP (I'm using OOP, Design Pattern) - Database: MySQL - Frameworks: Laravel, CodeIgniter, CakePHP - I have experience with BigCommerce API, Shopify API, AWS services and many other - CMS and CRM: Wordpress, hubspot,infusion,zoho - Frontend: JavaScript (jQuery, jQuery UI, Bootsrap, VueJs). HTML5, XHTML, CSS3 + Bootstrap. - Version control: git
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    API Development
    Twilio API
    WordPress
    Moodle
    PHP
  • $25 hourly
    I am a Network Engineer with experience of more than 8 years. I have good skills in both system administration/integration and software engineering. I have had a good experience with Linux system administration, VoIP and SS7/SIGTRAN solutions and some cloud computing using docker. I have a very good experience with C/C++, JAVA, C#, node.js, socket.io, php programming languages.
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    SMS Gateway
    SMS
    API
    Linux System Administration
    VoIP Administration
    HTML
    Kannel
    PHP
    SMPP
    JavaScript
    Linux
    Docker
    C++
    C
  • $30 hourly
    BE in Electronics and Telecommunication with 20 years of experience in Firewall, Networks. VOIP, Wireless. Datacenter, Servers etc Security: Cisco ISE, Cisco Firepower, Cisco ASA 5500, Cisco Meraki, PaloAlto, Checkpoint, Sophos, Fortigate, Dell Sonicwall, Juniper, PFSense, Rapid7, Watchguard, Barracuda SEIM: Solarwinds, Wazuh, Splunk Network: - Cisco, HP, Brocade, Juniper, Zylex, Microtik, GPON/EPON, Ubiquiti VoIP: Cisco, Avaya, Asterisk, FreePBX, 3CX, Microsoft Teams, Grandstream Wireless: Cisco, Ubiquiti, Mojo (AirTight), Aruba, Video: Cisco Telepresence MX200/300/SX20, Telepresence Server, Telepresence Conductor Server, Avaya Scopia XT Data Center: VMware vSphere 7.x, Cisco UCS, Microsoft Hyper V, Citrix Xenserver, Oracle Virtual Box Applications: Microsoft SCCM, MS SQL Server, WSUS, Radius Server, Squid Proxy Server, Keypass, Wordpress Cloud: Amazon Web Services (AWS), Google Cloud platform, Microsoft Azure Cloud Storage: NetApp, Western Digital Routing Protocol: OSPF, EIRGP, BGP, RIP. Network Tools: Wireshark, Solarwinds, Netflow, PRTG, Cacti, Scrutinizer, Logzilla, Wazuh Operating System: Windows 2012/2016/2019, CentOS, Ubuntu
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    VoIP Administration
    Cisco CallManager
    Cisco ASA
    Cisco UCS
    Microsoft Active Directory
    Cisco Router
    Sophos Sophos UTM
    Fortinet
    Juniper
    Cisco WLC
    VPN
  • $13 hourly
    Hi There - I have a total of 6 Years of experience in Web Application, Website, and API Development. In the Back End : - working on, Node JS, PHP - Laravel, CII In The Front End : - Working on Vue Js, React JS, Angular Js, and JavaScript framework. Also, I have worked on CMS (WordPress), I do Custom WordPress Development, theme customization, and many more. Working on, API Development, Web Application Development, Website Development, 3rd party API implementation. Custom eCommerce website and application development. Believes in the Quality delivery of projects in the field of web and mobile application development. P.S: Have a look at my portfolio and feel free to contact me.
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    Search Engine Optimization
    Software Development
    Product Development
    Web Development
    Shopify
    React
    WordPress
    API
    Laravel
    WooCommerce
    AngularJS
    PHP
    Website Optimization
    HTML
    Vue.js
  • $35 hourly
    1) Free PBX Expert (Installation, Development, Configuration, Technical Support). 2) Fusion PBX Expert (Installation, Development, Configuration, Technical Support) 3) Asterisk Expert (Installation, Development, Configuration, Technical Support). 4) Vicidial Expert (Installation, Development, Configuration, Technical Support). 5) Go Auto Dial Expert (Installation, Development, Configuration, Technical Support). 6) Fop2 Expert (Installation, Development, Configuration, Technical Support). 7) VOIP Expert. 8) IVRS (Design, Development, Configuration, Technical Support). 9) Linux, Mysql Database Expert. 10) Lua Expert. 11) PHP, Mysql, Perl expertise. 12) Rabbit MQ, Redis, Ha proxy Expertise. 13) Freeswitch (Development, Support, Installation) 14) AI / Voice Bot Expert using unimrcp. Projects Handel: 1) IPPBX. 2) Contact Center Solution. 3) SoftSwitch. 4) Autodialer/ Voice Broad Casting System/ Call Back System/Calling Card System. 5) IVRS/Voice Mail /Conference Solution. 6) Voice & SMS Broadcasting System. 7) VOIP Billing Solution. 8) PRI / ISDN/ GSM gateway Integration expert. 10) Solution Design Expert. 11) Architecture Expert. 12) Cloud / On-premises PBX/ contact center / Soft switch Deployment expert.
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    Linux System Administration
    MySQL
    VICIDIAL
    PHP
    OpenSIPS
    Session Initiation Protocol
    FreePBX
    VoIP Administration
    FreeSWITCH
  • $70 hourly
    Are you tired of tech troubles that just won't quit? Look no further! With 17 years of industry mastery, I'm not just your run-of-the-mill IT freelancer. I'm your go-to problem solver and tech virtuoso. As a certified Expert-Vetted White-hat Server/Cloud Infrastructure Expert, I've tamed the wildest Windows Servers, secured servers like a pro, and danced through the intricate web of ADS, IIS Web Servers, Apache, Nginx, and SQL Administration. My mission? To transform your IT challenges into seamless solutions that elevate your business. I bring clarity and expertise to a world where technology can feel like a maze. I specialize in Cloud Architecture, focusing on significant platforms like Azure, GCP, and AWS. Whether you want to migrate to the cloud, optimize your existing infrastructure, or enhance your security protocols, I've got you covered. My approach is not just about getting the job done; it's about understanding your unique needs and crafting tailored solutions that drive results. Are you curious about my process? It all starts with a deep dive into your requirements. Every project deserves a personalized touch, so I take the time to listen and understand your goals. From there, I design a strategic plan that outlines each step, ensuring transparency and collaboration throughout the journey. I pride myself on my meticulous attention to detail, which means you can expect nothing less than excellence in every aspect of my work. But wait, there's more! I don't just stop at implementation. I believe in empowering my clients with knowledge. After completing a project, I provide comprehensive documentation and training so you feel confident managing your new systems. Plus, I offer ongoing support to address any questions or concerns that may arise down the line. With me, you're not just hiring a freelancer; you're gaining a partner invested in your success. What sets me apart? It's my unwavering commitment to security. In today's digital landscape, safeguarding your data is paramount. I implement robust security measures, including SSL configurations and best practices, to fortify your systems against threats. You can rest easy knowing that your infrastructure is in safe hands. Now, let’s talk about results. After working with me, my clients have seen significant improvements in performance, efficiency, and security. Imagine a world where your IT systems run smoothly, allowing you to focus on what you do best—growing your business. That's the reality I strive to create for each of my clients. So, are you ready to take your IT infrastructure to the next level? Let’s connect and explore how I can help you achieve your goals. I’m just a message away, and I can’t wait to hear about your project! P.S. I genuinely love what I do and am excited to bring that passion to your project. Let’s make tech work for you! Vetted Skills: Cloud Architect, Windows Server, Azure, GCP, AWS, Security, SSL, Server Administration, Cloud Migration, Infrastructure Optimization, SQL Administration, Apache, Nginx, IIS Web Servers, Active Directory Services, Virtualization, Network Security, Backup Solutions, Disaster Recovery, Performance Tuning, IT Consulting.
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    Google Cloud Platform Administration
    AWS Server Migration
    Virtualization
    Deployment Automation
    Database Administration
    Solution Architecture
    Cloud Architecture
    Network Security
    Information Security
    Cloud Computing
    DevOps Engineering
    Cloud Security
    System Administration
    Amazon Web Services
    Microsoft Azure
  • $95 hourly
    Technology leader whose qualifications include a certification in Helpdesk Management and Operations Management; and detailed knowledge of networking technologies and best practices. Over 24 years of experience in the creation and deployment of solutions protecting networks, systems and information assets for the Education sector as well as for diverse companies and organizations. Proficient in the following Systems/Technologies: Linux Based Systems (Ubuntu, Debian and CentOS); Windows Desktop (all), Asterisk VOIP Systems, Windows Server Operating Systems (2000-2022), Active Directory Administrator, VMWare Esxi 5.5-7, HyperV. Proxmox, Google Workspace Admin and Office 365 Admin, Sharepoint Admin. Experience with Blockchain technologies. In the Managed IT Services sector I have experience with Nable, NinjaOne and Connectwise. LANs, WANs, VPNs, Routers, Firewalls, TCP/IP, Aruba WiFi and Switches, Ubiquiti Unify, Sophos In my current role I work as a Sr. Systems Engineer, Incident Manager and IT Consultant. I look forward to discussing your specific technology project with you.
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    Blockchain
    Telecommunications Engineering
    FreePBX
    Microsoft SharePoint Administration
    Data Center Operations
    Mobile QA
    VMware ESX Server
    VMware Administration
    Network Administration
    Linux System Administration
    Windows Administration
    TCP/IP
    Windows Server
    Microsoft Exchange Server
  • $50 hourly
    With over 20 years of experience in planning, installing, configuring, and debugging VoIP systems, I am confident that I can contribute significantly to your project. I have a proven track record in setting up and maintaining VoIP systems, including Kamailio, Asterisk, FreeSWITCH, FreePBX, VOS3000, A2Billing, ASTPP, 3CX, and Kazoo. Additionally, I have extensive experience working with SMS systems like PlaySMS, Jasmin, and Kannel. I am also 3CX certified, which further assures my capability to meet your VoIP needs with efficiency and precision. Whether it's troubleshooting, configuring systems, or managing complex installations, I bring a meticulous approach to ensure the project is delivered successfully and on time. If you choose to work with me, I guarantee 100% satisfaction and a solution tailored to your specific requirements.
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    VoIP
    VoIP Administration
    Twilio API
    MySQL Programming
    Session Initiation Protocol
    SMS Gateway
    Database Optimization
    Network Engineering
    FreePBX
    3CX
    Linux System Administration
    FreeSWITCH
  • $30 hourly
    I'm a Unified Communications (UC) engineer with experience in deploying, operating and maintaining Unified Communications services such as Skype for Business, Microsoft Teams, Zoom and telephony.
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    PDF Conversion
    Session Initiation Protocol
    VoIP Administration
    English
    Vietnamese
    Cisco Router
    Outbound Sales
    Skype For Business
    TCP/IP
    Cisco
    Microsoft Teams
    Routing
    Communications
    Telecommunications
    Office 365
  • $60 hourly
    Hello, my name is Mark Philippe Mirasol. I started working in upwork in 2017 but I've been working on api integrations / business process automations / backend development projects since 2010. I specialize in understanding my clients' business needs and proposing actions / building custom solutions to match these needs, either from scratch or on top of platforms that my clients prefer to use. See examples of my work below. api help with klaviyo (Jul 18, 2024 - Sep 5, 2024) "Marks work was perfect. His communication was great as well fluent in English and prompt with replies. We will be using him again in the future." Online Quiz Integration with Google Sheets (Jun 20, 2022 - Dec 21, 2022) "Sometimes, it can be hard to find an excellent hire on Upwork that actually can do what they say. Mark delivered over and above. Seriously. He is a pro that has a wide range of expertise. And if he was unfamiliar with a related component, he picked it up in a snap and got it done. Excellent range of ability. Great skill. You cannot go wrong hiring him. Great communication. Reliable. Everything you have been hoping for." Whatsapp Chatbot for Aftersales Marketing (Jul 24, 2021 - Dec 15, 2022) "great work! very competent!" Looking for Shopify Expert for App (Jun 8, 2022 - Nov 9, 2022) "Mark is very communicative and professional. He is very good at communicating and explaining highly technical concepts to non-technical listeners. Was able to successfully complete his proposed milestones." Twilio Development (Aug 10, 2022 - Oct 1, 2022) "We will definitely get with Mark again if we have additional requirements. Thank you for all your help!" NEWS SITE / Submission - Shopify & Wordpress (Sep 3, 2022 - Sep 27, 2022) "Very knowledgeable and resourceful. Would highly recommend for API & integrations" Shopify App Development - Checkout customization, Paypal Integration, one click upsell (Sep 3, 2019 - Feb 16, 2021) "Mark has been amazing to work with! A true expert in his field. Highly recommended for anyone considering working with him." For the last 2 years, I've worked mostly with a lot of long-term clients who prefer to keep their contracts open and ask for support as needed. Airtable record creation from template (Dec 28, 2022 - Jan 13, 2023) "Mark is an excellent developer - intellegent, quick, professional, and timely." Shopify Plus Developer | Ongoing Projects (Jul 20, 2020 - Jun 19, 2023) I also specialize in troubleshooting issues/errors and fixing them. Audit Twilio Text Messaging and Look into 30007 Error code (Nov 26, 2019 - Feb 16, 2021) "Mark is a true professional in his craft. I highly recommend him to anyone looking to get a job done. If you posted a job, and have a bajillion applicants, and mark is one of them, do yourself a favor and hire that man! He's not one to claim he can do something and then utterly fail at it. If he says he can do it, he'll do it, and he'll do it correctly. I'll definitely be hiring him again for my future projects! Till next time Mark!" Review and fix/create ACH plugin & fix credit card selection issue in checkout (May 18, 2021 - Jun 17, 2021) "We had hired a developer to help build ACH functionality for our WooCommerce store. The person did not deliver a fully functioning, working product. Mark came in and saved the day quickly, efficiently and effectively. I can't say enough about how elated I was with the outcome. Will use for future projects!" I've worked mostly with (but not only limited to) ecommerce platforms like Shopify and Woocommerce, database/crm platforms with Airtable and Zoho, voip and email platforms like Twilio, Ontraport and Klaviyo. Other platforms I've worked with are as follows: Software and Apis: Shopify, Stripe, Paypal, Twilio API, Vicidial, Plivo, Boberdoo, Paypal, Ontraport, GetResponse, ConstantContact, Amazon MWS, Podio, Limesurvey, Dialogflow, Twilio Flex, Twilio Autopilot, Twilio Studio, Whatsapp, Facebook Messenger, Telegram, Slack, Airtable Frameworks: Codeigniter, Yii, Cakephp, Laravel, Drupal, Next.js, Nuxt.js, Django Languages: PHP, MySQL, Jquery, Python - I generally work in US time. - I work on my own. - I am readily available over skype. - I speak fluent english. - I prefer to work on long term projects.
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    WooCommerce
    Shopify
    CodeIgniter
    Drupal
    VICIDIAL
    Plivo
    MySQL Programming
    API Development
    LimeSurvey
    Dialogflow API
    Twilio API
    Airtable
    Automation
    PHP
    Zapier
  • $40 hourly
    If your WordPress website has been hacked, don't panic! I can help you get it back up and running quickly and securely. With 𝟭𝟬 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, I excel in vulnerability identification, malware resolution, and proactive security. A 𝟏𝟎𝟎% 𝐣𝐨𝐛 𝐬𝐮𝐜𝐜𝐞𝐬𝐬 𝐬𝐜𝐨𝐫𝐞, speaks to my success in swiftly recovering hacked websites, resolving malware issues, and fortifying security. I will get your website back up and running in just 𝘁𝘄𝗼 𝐡𝐨𝐮𝐫𝐬. My services go beyond simply updating and installing security plugins. I conduct security audits, providing detailed reports and actions to secure your site, ensuring future protection. 𝙒𝙝𝙖𝙩 𝙄 𝙊𝙛𝙛𝙚𝙧: 🛡️ Restoring your website's integrity by removing malware 🛡️ Restoration of your website to its original state 🛡️ Identification and resolution of intrusion sources and vulnerabilities 🛡️ Advanced security hardening backed by a 𝟏-𝐲𝐞𝐚𝐫 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐲 𝐟𝐨𝐫 𝐩𝐞𝐚𝐜𝐞 𝐨𝐟 𝐦𝐢𝐧𝐝. 🛡️ Backdoor script removal 🛡️ Malicious redirect removal 🛡️ Japanese keywords hack removal 🛡️ WordPress advanced security measures, firewall integration 🛡️ Linux server administration, security hardening 🛡️ DDoS mitigation, firewall (Cloudflare, CSF) 🛡️ Google search clean up, Google Ads approval 🛡️ Website blacklist removal 🛠️ Server setup and optimization. 🛠️ Old WordPress update/upgrade, migration, and bug fixing. 🛠️ Restore broken WordPress and bug fixing. 🛠️ Audit & identify the bugs causing website or server crashes. 🛠️ WordPress websites and server migration. Let's schedule a free consultation to evaluate your website or server's health and determine if we would make a great team. And the best part? If we move forward with a paid project and I fail to meet your expectations, you will not owe me a single penny. 𝙺𝚒𝚗𝚍 𝚁𝚎𝚐𝚊𝚛𝚍𝚜, 𝐓𝐮𝐡𝐢𝐧 𝐀. 𝘍𝘰𝘶𝘯𝘥𝘦𝘳 & 𝘉𝘶𝘴𝘪𝘯𝘦𝘴𝘴 𝘔𝘢𝘯𝘢𝘨𝘦𝘳, 𝘚𝘦𝘤𝘶𝘳𝘦𝘸𝘱.𝘯𝘦𝘵
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    WordPress
    Bug Fix
    Web Hosting
    DNS
    Virus Removal
    WordPress Malware Removal
    Email Deliverability
    Website Security
    WordPress Development
    Cloudflare
    Troubleshooting
    System Administration
    Information Security
    Vulnerability Assessment
    Malware Removal
  • $50 hourly
    **Asterisk Developer & AI-Integrated Telephony Specialist** Expertise in Conversational AI with 10+ years of experience telephony and 3+ years of AI. Call center automation using real-time speech-to-text, NLU, and TTS, Have built systems similar to air.ai | Cold calling - quicksmart.ai With extensive experience in Asterisk, SIP, VOIP, WebRTC, Freepbx, Dinstar, GSM, and a pioneering approach to integrating Asterisk with AI, I am at the forefront of telephony innovation. My hands-on experience with VOIP technologies like Sangoma, Freepbx, and Dinstar TDM to IP, GSM to IP ensures that I can handle any challenge in this domain. **Job Responsibilities:** - Collaborated with the Application Development team as a Training Engineer. - Expertise in VOIP technologies: Sangoma, Freepbx, Dinstar TDM to IP, GSM to IP. - Spearheaded AI integration with Asterisk to revolutionize telephony solutions. - Served as an advisor for software utilization and optimizing the work environment. - Proficient in assembling and installing various operating systems. - Configured outlook, LAN, and WAN setups. **Technical Skills:** **Intune** **Sentinel** - **Networking (MS Windows):** Domain and Workgroup Connectivity, DNS Configuration, Internet settings, Mail Account setup, DFS, DHCP, HDD management, RDP, VPN, Shadow copying, and more. - **Hardware:** Assembly of computers, installation of a wide range of Operating Systems including Windows (95, 98, XP, Vista, 7, 8, Server editions) and Linux. **Education:** - Intermediate from CBSE Board, 2007. - DOEACC “O” Level. **Special Achievements:** - Represented India in the USA for Mathematics Research at Intel Program (ISEF 2006). - Recipient of the National Award from Intel for Mathematics Research (2005). - Honored with the Bal Vagyanic Award for deriving the “nth” root formula (2006-07). - State Award from NCSC for Science Research (2004). - Rajypal Award in Bharat Scout and Guide (2005). Ready to harness the power of AI-integrated telephony? Experience our cutting-edge voicebot demo, powered by GPT, to learn more about us and our services. Call test real demos quicksmart.ai Let's connect and shape the future of communication
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    CallTools Call Center Software
    WebRTC
    FreePBX
    VoIP Administration
    Session Initiation Protocol
    Telecommunications Engineering
    VoIP Software
    cPanel
    Customer Relationship Management
    VoIP
    Linux
    Network Administration
  • $25 hourly
    With 14 years of experience in the IT industry, I specialize in delivering full-time, reliable, and cost-effective system and server support, with a focus on DevOps, application development, and VoIP administration. My expertise spans corporate IT services across Linux, Windows, cloud platforms, and process automation. Specializations: Linux and Windows System Administration: Proficient in managing RHEL, CentOS, Debian, Ubuntu, Windows Server (2012/16/19) Cloud Administration: Hands-on experience with AWS (EC2, RDS, S3, VPC, ELB, CloudFront),Azure Linode, and VPS management. REDCap and Clinical Data Platforms: Deployment, customization, and maintenance of REDCap platforms for healthcare and research applications. DevOps Tools: Advanced expertise in Docker, Kubernetes, Ansible, and modern CI/CD pipelines. VoIP Server/Gateway Administration: Expertise in Asterisk, FreePBX, Vicidial/GoAutoDial, OpenVPN, and A2Billing. Application Servers: Proficient in Apache, IIS, LAMP stacks, Nginx, Nagios, and Zabbix. Programming and Scripting: Skilled in Python, PHP, Bash scripting, and web technologies (HTML/CSS). Database Management: Extensive experience with MySQL, MSSQL, Oracle (10g, 11g). Firewalls and Security: Expertise in configuring and managing Iptables, Untangle, PFSense, and Squid. This diverse skill set allows me to deliver tailored IT solutions, optimize infrastructure, and drive innovation across projects, focusing on reliability, scalability, and performance.
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    Terraform
    Containerization
    CI/CD Platform
    Docker
    Kubernetes
    VICIDIAL
    AWS Systems Manager
    DevOps
    Linux System Administration
    Amazon ECS
    AWS Application
    Linux
    Amazon Web Services
    Ubuntu
  • $35 hourly
    Bertrand Ndakena has a M.A. in Telecoms. He is a Udacity certified cloud developer and self-taught cloud administrator. Passionate about cloud developments/operations. Also interested in AI/ML and Data Science. Has extensive experience setting up cloud solutions(both open source and proprietary) and VOIP(including SIP-based) solutions.
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    Session Initiation Protocol
    A2Billing
    VICIDIAL
    WebRTC
    Service Cloud Administration
    VoIP Software
    FreePBX
    VoIP Administration
    FreeSWITCH
    3CX
    Elastix
  • $30 hourly
    I have 8+ years experience on telecom and cloud-based solutions which include VAS service develop, SMS and IVR integration, various API integration, web design, web programming, Live application develop using c++ and java. integrating various telecom products using API's. My Definition: Drive Straight - Deliver Quick - Reliable and passionate. Major Services i can offer: 1. SMS,MMS,IVR, Voice application using Twilio, Nexmo, Plivo,Clickatell,Tropo or any other cloud telephony service Integration. 2. Asterisk 3. Any kinds of Payment Gateway Implementation (Paypal,Stripe,authorize.net,2checkout,Skrill or any other payment provider API). 4. Enterprise level application development. 5. Email Solution including MailChimp,Aweber,Mailgun etc including Transactional or Marketing Mail, Bulk or Single. 6. E-commerce Solution using Woocommerce and Magento. 7. Wordpress. 8. PSD to Pixel perfect Responsive HTML. 9. Any Kinds of API development or API integration.
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    Plivo
    SMS
    Twilio API
    SMS Gateway
    API Development
    JSON
    Python
    PHP
  • $50 hourly
    Utilizing my software engineering knowledge, Voice over IP, the up-to-date communication technologies, and open-source platform know-how, you will receive reliable, innovative and comprehensive IT services. Thanks to my multinational company experience, I am an expert concerning Voice Over IP solutions, WebRTC applications, CRMs, application interfaces integration between Asterisk, PHP/MySQL based interfaces for Online VoIP based applications including Web callback services, call center monitoring applications, online complaint and general management systems, task management systems, database clustering, Linux administration, and AGI scripting for the automatic dynamic IVR systems. Thank you for reading my profile. Let's work together!
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    Web Design
    SQL
    AWS Server Migration
    OpenSIPS
    MySQL
    FreeSWITCH
    PHP
    Google Cloud Platform
    System Administration
    Linux
  • $20 hourly
    Welcome and thanks for coming here. I am a full-time freelance Web Developer with an extensive portfolio. I specialize in Drupal and custom core PHP development. As you will see in my reviews, I focus to deliver quickly and make my clients fully satisfied. I am expert in Drupal and worked in Drupal from the last 4 years. I have developed more than 900+ custom modules and worked with customization(Custom Back-end, front-end, custom module/theme development/contrib modules, hooks/api's/extending classes) as well. I have worked with the Drupal 8 also and migrated the content from Drupal 7 to Drupal 8. Drupal experience: custom modules, theming, multilingual, ecommerce, bootstrap, debugging. Other technologies: GIT, API, Linux, Grunt, Bitbucket, _Slack. Other Skills - Opencart - Codeigniter - Wordpress - Ajax - Jquery(Created custom library) - Javascript - Other custom CRM Feel free to ask me anything, I'm flexible when it comes to work and working time, open to both hourly and fixed contracts. Price is negotiable for long term contracts!!
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    FreePBX
    Android
    Android App Development
    MySQL Programming
    Keap
    Bug Fix
    AJAX
    jQuery
    CodeIgniter
    API
    JSON
    Database Architecture
    PHP
    Drupal
  • $50 hourly
    🔹𝗨𝗽𝘄𝗼𝗿𝗸 𝗧𝗼𝗽-𝗥𝗮𝘁𝗲𝗱, 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 𝗥𝗮𝘁𝗲, 𝟱,𝟱𝟬𝟬+ 𝗛𝗼𝘂𝗿𝘀, 𝐚𝐧𝐝 𝗔𝗰𝗿𝗼𝘀𝘀 𝟭𝟮𝟬+ 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 🔹𝟭𝟴 𝐲𝐞𝐚𝐫𝐬 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐚𝐬 𝐚 𝐓𝐞𝐜𝐡 𝐋𝐞𝐚𝐝, 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭, 𝐚𝐧𝐝 𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐝𝐦𝐢𝐧 🔹𝗙𝘂𝗹𝗹-𝗧𝗶𝗺𝗲 𝗙𝗿𝗲𝗲𝗹𝗮𝗻𝗰𝗲𝗿, 𝗠𝗖𝗣, 𝗠𝗖𝗜𝗧𝗣, 𝗠𝗖𝗧𝗦, 𝗠𝗖𝗦𝗔, 𝗠𝗖𝗦𝗘, 𝗮𝗻𝗱 𝗔𝘇𝘂𝗿𝗲 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 🔹𝗘𝗺𝗽𝗼𝘄𝗲𝗿𝗶𝗻𝗴 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝘄𝗶𝘁𝗵 𝗦𝗲𝗰𝘂𝗿𝗲, 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗲𝗱, 𝗮𝗻𝗱 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗜𝗧 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 🔹𝐒𝐨𝐟𝐭 𝐒𝐤𝐢𝐥𝐥𝐬: 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽, 𝗧𝗶𝗺𝗲 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁, 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻, 𝗮𝗻𝗱 𝗧𝗲𝗮𝗺𝘄𝗼𝗿𝗸 With years of expertise in Microsoft 365 administration, security, and compliance, I help businesses, MSPs, and enterprises streamline IT operations, enhance cybersecurity, and ensure compliance with industry standards. I aim to eliminate inefficiencies, reduce costs, and fortify IT infrastructures with cutting-edge solutions. 🎯 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁 𝗼𝗳 𝘁𝗵𝗲 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀, 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, 𝘀𝗸𝗶𝗹𝗹𝘀, 𝗮𝗻𝗱 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗰𝗼𝗺𝗺𝗼𝗻𝗹𝘆 𝗵𝗲𝗹𝗽 𝗺𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 🎯 🔹 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗘𝗻𝘁𝗿𝗮: Identity and access management, secure authentication, and governance 🔹 𝗠𝗦 𝗘𝘅𝗰𝗵𝗮𝗻𝗴𝗲: Email migration, security, encryption, compliance, and mail flow optimization 🔹 𝗢𝗳𝗳𝗶𝗰𝗲 𝟯𝟲𝟱 𝗖𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻: Deployment, management, and security monitoring 🔹 𝗦𝗵𝗮𝗿𝗲𝗣𝗼𝗶𝗻𝘁 𝗮𝗻𝗱 𝗢𝗻𝗲𝗗𝗿𝗶𝘃𝗲: Site and file migration, sharing, and storage optimization 🔹 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗧𝗲𝗮𝗺𝘀: Messaging, conferencing, and external collaboration 🔹 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗜𝗻𝘁𝘂𝗻𝗲: Device management, security policies, and compliance enforcement 🔹 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗗𝗲𝗳𝗲𝗻𝗱𝗲𝗿 𝗔𝗧𝗣: Threat detection, incident response and proactive security 🔹 𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲 𝗮𝗻𝗱 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆: Microsoft Purview, Microsoft 365 Defender, insider risk management 🔹 𝗠𝗦𝗣 𝗧𝗼𝗼𝗹𝘀: Atera, ConnectWise, Datto, NinjaOne, Pulseway, CyberCNS, SentinelOne, ITGlue 🎯 𝗪𝗵𝗮𝘁 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗦𝗮𝘆 𝗔𝗯𝗼𝘂𝘁 𝗠𝗲 🎯 🗣️"MD is phenomenal. He certainly knows his craft inside and out. Very knowledgeable, approachable, and takes ownership. Our compliance was approaching a deadline, and we were not close to getting it done. MD was able to rescue us and worked diligently. He also was a great teacher and did not mind at all explaining things and how it worked. We were over subscribing to office 365 services which he was able to save us those monthly costs. We will be working with MD on other projects without a doubt." | 𝗔. 𝗔𝗺𝗶𝗻 | 𝗗𝗶𝗿𝗲𝗰𝘁𝗼𝗿 𝗼𝗳 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 | 𝗚𝘂𝗿𝘂𝗦𝗾𝘂𝗮𝗱 | 𝗨𝗦𝗔 🗣️"MD is a great engineer to work with. He has configured our servers and helped to explain what has needed each step of the way. On top of that, we got systematic documentation of the process in case we need to adjust anything. Easy to communicate with and even accommodated our time zone difference to help us during UK working hours. We'd be definitely working to work with MD in the future." | 𝐂𝐡𝐫𝐢𝐬 𝐇𝐚𝐧𝐝𝐳𝐥𝐢𝐤 | 𝐂𝐓𝐎 | 𝐊𝐥𝐚𝐱𝐨𝐧 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 | 𝐔𝐊 🗣️"I highly recommend MD for his exceptional work on our BYOD implementation project. He demonstrated excellent communication, technical expertise, and a proactive approach to ensure seamless integration with our existing infrastructure. His dedication to customer satisfaction and commitment to delivering a high-quality solution greatly improved our organization's efficiency and security. I look forward to future collaborations and recommend him to anyone seeking a reliable IT professional." | 𝐅𝐫𝐚𝐧𝐤𝐥𝐢𝐧 𝐀𝐝𝐚𝐦𝐚 | 𝐂𝐄𝐎 | 𝐂𝐥𝐨𝐮𝐝𝐢𝐥𝐚𝐱 | 𝗨𝗦𝗔 🗣️"MD is a fantastic engineer who is clearly an expert in a number of Infrastructure and Networking Technologies. Very detail-orientated with good communication skills. MD was involved in a number of projects for iT360 and saw these through with a high level of expertise and communication internally and client-facing." | 𝐂𝐚𝐥𝐥𝐮𝐦 𝐆𝐚𝐥𝐥𝐨𝐰𝐚𝐲 | 𝐆𝐞𝐧𝐞𝐫𝐚𝐥 𝐌𝐚𝐧𝐚𝐠𝐞𝐫 | 𝐢𝐓𝟑𝟔𝟎 | 𝐍𝐞𝐰 𝐙𝐞𝐚𝐥𝐚𝐧𝐝 🎯 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗧𝗿𝘂𝘀𝘁 𝗠𝗲 🎯 🔹 𝗖𝗹𝗶𝗲𝗻𝘁-𝗖𝗲𝗻𝘁𝗿𝗶𝗰 𝗔𝗽𝗽𝗿𝗼𝗮𝗰𝗵: I focus on delivering real value and building long-term relationships. 🔹 𝗣𝗿𝗼𝘃𝗲𝗻 𝗥𝗲𝘀𝘂𝗹𝘁𝘀: I consistently exceed expectations, ensuring 100% client satisfaction. 🔹 𝗖𝗹𝗲𝗮𝗿 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻: I keep clients informed at every project stage. 🔹 𝗣𝗿𝗼𝗮𝗰𝘁𝗶𝘃𝗲 𝗣𝗿𝗼𝗯𝗹𝗲𝗺 𝗦𝗼𝗹𝘃𝗲𝗿: I tackle challenges head-on and provide strategic solutions. 🔹 𝗘𝗺𝗽𝗮𝘁𝗵𝘆 𝗮𝗻𝗱 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹𝗶𝘀𝗺: I work with integrity, respect, and a commitment to excellence. 💡 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗲, 𝗮𝗻𝗱 𝗲𝗹𝗲𝘃𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝗜𝗧 𝗶𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲? 𝗟𝗲𝘁’𝘀 𝗰𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗲! 🚀💼
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Managed Services
    IT Support
    Helpdesk
    Microsoft Active Directory
    Microsoft Hyper-V Server
    Microsoft Intune
    Virtual Desktop Infrastructure
    Office 365
    Microsoft Endpoint Manager
    Microsoft Azure
    Technical Support
    Windows Server
    System Hardening
    Network Administration
    System Administration
  • $45 hourly
    I am professional freelancer having more than 10 years of experience in the VoIP industry. I am having wide knowledge of VoIP systems installation,configuration and troubleshooting. I am specialize in asterisk, vicidial, goautodial, freeswitch,elastix,Fusionpbx, Kazoo and freepbx based open sourece telephony platforms. I can configure the most advance solutions ranging from web integration of pbx to the enterprise level of VoIP systems deployment. I can also experienced in Linux based servers including opensuse,Centos and Red hat servers. I can install VPS and troubleshoot the day to day issues in the OpenVZ virtualization environment. My way of doing work is the best indication of customer satisfaction. I have done lot of projects in VoIP based systems.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    OpenSIPS
    Linux System Administration
    Kamailio
    Elastix
    FreeSWITCH
    VICIDIAL
    VoIP Administration
    WebRTC
    FreePBX
    Microsoft Teams
  • $150 hourly
    A Top-Rated, Expert-Vetted VoIP/Software engineer with over 20 years of experience. My experience ranges from Asterisk/FreePBX phone systems, SMS messaging, Linux operating systems, to network administration. I believe you deserve a more professional, reliable, and personalized business experience, and I bring that mindset to every project. Whether I’m developing top-secret code for Lockheed Martin, or AI telephone agents for Nomo, or creating privacy-first communications for Mecca Hosting, Inc, or designing secure, high availability Asterisk systems for TeleConnx Inc., or handling difficult troubleshooting tasks, I always commit myself to the same standard: creative, client-first solutions and efficient, high-quality work, completed in a fraction of the time. I have a passion for transforming mundane phone interactions into exciting customer experiences, and I lean on decades of experience to create solutions that others would find impossible. In short, I can make your telephone system do pretty much anything, including turning on your coffee maker in the morning. I look forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    FreePBX
    MySQL
    Kamailio
    Linux System Administration
    Amazon Web Services
    VoIP Administration
    API Development
    C
    VoIP Software
    LAMP Administration
    Session Initiation Protocol
    Linux
    VoIP
    Business with 10-99 Employees
  • $45 hourly
    I have over 20 years of experience related to data networks and telecommunication systems. I'm providing installation, troubleshooting, integration, and consultancy on Asterisk-based systems (Freepbx, Vicidial, etc.) and 3CX. I can deliver any project (IVR, Dialer, PBX, etc.) related to VoIP and networking using Linux OS. I'm experienced with both programming and Linux administration. I'm also working with AI applications (OpenAI, Google) on telecommunication systems. You can find detailed information about me below. My specialties are VoIP, IP Telephony, IVR, Call Center, Linux systems, and Web programming. I'm experienced in different flavors of Linux systems, Asterisk and Asterisk-based PBX software (Elastix, FreePBX), 3CX, opensips/kamailio, Kazoo, and Vicidial. I've developed applications based on Asterisk and integrated Asterisk with various software like Zoho, Vtiger, MS Dynamics, Salesforce, and in-house CRM applications using REST or SOAP web services. I've also used Google cloud, AWS, Google, Azure , Twilio, and Plivo to embed speech-to-text, text-to-speech, and other features.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Perl
    PHP
    Python
    Google APIs
    Twilio API
    AI Bot
    API Integration
    VoIP Administration
    VoIP Software
    IVR Software
    Call Center Software
    VoIP
    FreePBX
    3CX
  • $55 hourly
    I have 18+ years expereince in VoIP/SMS setups using IVRs, asterisk , Freeswitch, MS Teams and Opensips/Kamailio and VoIP | Freeswitch | Opensips | Contact Centers| Conversational AI| Amazon Connect|MS Teams
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Session Initiation Protocol
    CentOS
    Linux
    FreeSWITCH
    Customer Relationship Management
    A2Billing
    MySQL
    WebRTC
    Android
  • $35 hourly
    Hi, I’m an IT expert with a strong focus on VoIP, specializing in Asterisk and Twilio. I design and implement telecommunications solutions using both commercial and open-source frameworks. I have developed numerous call center IVR systems and other telephony solutions, which have been deployed globally. In addition to my VoIP expertise, I am fluent in PHP, Python, Java, CSS, and HTML, with extensive experience in Linux system administration. With over 22 years in Cybersecurity, I have worked in both defensive and offensive roles, supported by certifications from industry leaders such as Google, Microsoft, IBM, AWS, and Cisco. I also have a solid background in Cloud technologies.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Android
    Twilio
    Linux System Administration
    Session Initiation Protocol
    Flutter
    JavaScript
    PHP
    HTML5
    Node.js
    AJAX
    Twilio API
    jQuery
    MySQL
  • $75 hourly
    Software developer with 20+ years experience. Many of these years in large telecommunication companies. Developed and project managed complex products. I am focused in a few areas. This focus and experience enables quicker turnaround for you. Expert in Twilio. Tier 1 partner of Twilio and recognized by Twilio itself. Expert in complex asterisk PBX setup for multi-extensions, multi-trunks, queues, hunt group, IVR. Complex IVRs, customizations and scripts for asterisk. Large PBX setup using Kamailio as proxy. Expert in developing large distributed systems using Amazon AWS. Expert in Roku. Developed several popular Roku Channels including that of Fortune 100 companies (Details provided on request)
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Twilio
    Zoho CRM
    Stripe
    Roku Development
    Apple TV Application
    Plivo
    Twilio API
    FreePBX
    Amazon Web Services
    Nexmo
    PHP
  • $25 hourly
    I am a highly accomplished Senior Software Engineer with over 6 years of experience building scalable web and mobile applications across industries like SaaS, Finance, E-Commerce, Healthcare, and Education. My expertise spans Full-Stack Development , Backend Engineering , Cloud Architecture , and DevOps Practices , ensuring end-to-end project delivery from concept to deployment. Whether you need a dynamic front-end interface, a robust back-end API, or a fully containerized cloud infrastructure, I bring the technical depth and problem-solving skills to deliver high-quality solutions tailored to your business needs. ✅ Key Skills: ✔️ Front-End Development: React, Next.js, HTML, CSS, Bootstrap, jQuery ✔️ Back-End Development: Node.js, Express.js, NestJS, GraphQL, REST APIs ✔️ Cloud Platforms: AWS (EC2, RDS, S3, ECR), Azure, GCP ✔️ DevOps Practices: Docker, Kubernetes, Terraform, Jenkins, CI/CD Pipelines ✔️ Databases: MySQL, MongoDB, PostgreSQL, Redis, SQL Server ✔️ Testing Tools: Jest, Mocha, Cypress, Vitest ✅ Portfolio Highlights: ✔️ Catena Logistix: Developed a real-time supply chain management platform with predictive analytics for risk assessment and logistics optimization. Integrated third-party services like SAP and Go Motive. ✔️ Lopic App: Built a role-based HRMS system and pharmacy scheduling platform that eliminated agency fees and onboarded thousands of locums. ✔️ Signature Pharmacy: Led the development of an online prescription delivery platform with a 5-star Trustpilot rating. ✔️ Telenor Smart Office: Deployed a hybrid cloud VoIP solution for over 1,000 SME clients, handling 120,000+ daily calls with zero downtime. ✅ Why Hire Me? With a strong background in full-stack development, backend engineering, cloud architecture, and DevOps practices, I can handle complex projects from start to finish. My ability to communicate effectively and collaborate in cross-functional teams ensures smooth project execution and timely delivery. ✅ Keywords: Software Engineer, Full-Stack Developer, Backend Developer, Cloud Architect, DevOps Engineer, JavaScript Developer, TypeScript Developer, React Developer, Node.js Developer, AWS Cloud Engineer, Docker Expert, Kubernetes Specialist, GraphQL API Developer, REST API Developer, Web Application Developer, Mobile App Developer, SaaS Developer, E-Commerce Developer
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    CI/CD
    NGINX
    MongoDB
    DevOps Engineering
    JavaScript
    PHP
    Node.js
    API Integration
    Database Design
    ExpressJS
    Amazon Web Services
    Redis
    React
    Full-Stack Development
    SQL
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