{"id":2,"date":"2024-12-23T07:05:11","date_gmt":"2024-12-23T07:05:11","guid":{"rendered":"https:\/\/www.ludwigpro.net\/blog\/?page_id=2"},"modified":"2025-10-29T13:38:04","modified_gmt":"2025-10-29T13:38:04","slug":"home-page-en","status":"publish","type":"page","link":"https:\/\/www.ludwigpro.net\/blog\/","title":{"rendered":"Home"},"content":{"rendered":"\n<div class=\"wp-block-group alignfull is-style-section-1 has-global-padding is-layout-constrained wp-container-core-group-is-layout-cdf985e3 wp-block-group-is-layout-constrained is-style-section-1--1\" style=\"min-height:100vh;margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--80);padding-right:var(--wp--preset--spacing--80);padding-bottom:var(--wp--preset--spacing--80);padding-left:var(--wp--preset--spacing--80)\">\n<div class=\"wp-block-columns alignwide are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-643ced6b wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-large is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"1919\" height=\"2560\" src=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2025\/01\/IMG20250103122041-edited-scaled.jpg\" alt=\"\" class=\"wp-image-435\" style=\"border-top-left-radius:150px;border-bottom-right-radius:150px;object-fit:cover;width:300px;height:auto\" srcset=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2025\/01\/IMG20250103122041-edited-scaled.jpg 1919w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2025\/01\/IMG20250103122041-edited-225x300.jpg 225w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2025\/01\/IMG20250103122041-edited-768x1024.jpg 768w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2025\/01\/IMG20250103122041-edited-1152x1536.jpg 1152w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2025\/01\/IMG20250103122041-edited-1535x2048.jpg 1535w\" sizes=\"auto, (max-width: 1919px) 100vw, 1919px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-content-justification-stretch is-layout-flex wp-container-core-group-is-layout-353c4f5a wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading has-text-align-left\">Hi, I am Andrei Ludwig<\/h2>\n\n\n\n<p>Results-driven Computer Programmer with 30 years of experience in developing and implementing software solutions.<\/p>\n\n\n\n<ul class=\"wp-block-social-links has-icon-color is-style-logos-only is-layout-flex wp-block-social-links-is-layout-flex\"><li style=\"color:currentColor;\" class=\"wp-social-link wp-social-link-telegram has-currentColor-color wp-block-social-link\"><a href=\"https:\/\/t.me\/andreyludwig\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 128 128\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M28.9700376,63.3244248 C47.6273373,55.1957357 60.0684594,49.8368063 66.2934036,47.2476366 C84.0668845,39.855031 87.7600616,38.5708563 90.1672227,38.528 C90.6966555,38.5191258 91.8804274,38.6503351 92.6472251,39.2725385 C93.294694,39.7979149 93.4728387,40.5076237 93.5580865,41.0057381 C93.6433345,41.5038525 93.7494885,42.63857 93.6651041,43.5252052 C92.7019529,53.6451182 88.5344133,78.2034783 86.4142057,89.5379542 C85.5170662,94.3339958 83.750571,95.9420841 82.0403991,96.0994568 C78.3237996,96.4414641 75.5015827,93.6432685 71.9018743,91.2836143 C66.2690414,87.5912212 63.0868492,85.2926952 57.6192095,81.6896017 C51.3004058,77.5256038 55.3966232,75.2369981 58.9976911,71.4967761 C59.9401076,70.5179421 76.3155302,55.6232293 76.6324771,54.2720454 C76.6721165,54.1030573 76.7089039,53.4731496 76.3346867,53.1405352 C75.9604695,52.8079208 75.4081573,52.921662 75.0095933,53.0121213 C74.444641,53.1403447 65.4461175,59.0880351 48.0140228,70.8551922 C45.4598218,72.6091037 43.1463059,73.4636682 41.0734751,73.4188859 C38.7883453,73.3695169 34.3926725,72.1268388 31.1249416,71.0646282 C27.1169366,69.7617838 23.931454,69.0729605 24.208838,66.8603276 C24.3533167,65.7078514 25.9403832,64.5292172 28.9700376,63.3244248 Z\" \/><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">Telegram<\/span><\/a><\/li>\n\n\n\n<li style=\"color:currentColor;\" class=\"wp-social-link wp-social-link-mail has-currentColor-color wp-block-social-link\"><a href=\"mailto:&#105;&#110;fo&#064;lu&#100;&#119;igpro&#046;ne&#116;\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M19,5H5c-1.1,0-2,.9-2,2v10c0,1.1.9,2,2,2h14c1.1,0,2-.9,2-2V7c0-1.1-.9-2-2-2zm.5,12c0,.3-.2.5-.5.5H5c-.3,0-.5-.2-.5-.5V9.8l7.5,5.6,7.5-5.6V17zm0-9.1L12,13.6,4.5,7.9V7c0-.3.2-.5.5-.5h14c.3,0,.5.2.5.5v.9z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">Mail<\/span><\/a><\/li>\n\n<li style=\"color:currentColor;\" class=\"wp-social-link wp-social-link-github has-currentColor-color wp-block-social-link\"><a href=\"https:\/\/github.com\/RandDruid\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12,2C6.477,2,2,6.477,2,12c0,4.419,2.865,8.166,6.839,9.489c0.5,0.09,0.682-0.218,0.682-0.484 c0-0.236-0.009-0.866-0.014-1.699c-2.782,0.602-3.369-1.34-3.369-1.34c-0.455-1.157-1.11-1.465-1.11-1.465 c-0.909-0.62,0.069-0.608,0.069-0.608c1.004,0.071,1.532,1.03,1.532,1.03c0.891,1.529,2.341,1.089,2.91,0.833 c0.091-0.647,0.349-1.086,0.635-1.337c-2.22-0.251-4.555-1.111-4.555-4.943c0-1.091,0.39-1.984,1.03-2.682 C6.546,8.54,6.202,7.524,6.746,6.148c0,0,0.84-0.269,2.75,1.025C10.295,6.95,11.15,6.84,12,6.836 c0.85,0.004,1.705,0.114,2.504,0.336c1.909-1.294,2.748-1.025,2.748-1.025c0.546,1.376,0.202,2.394,0.1,2.646 c0.64,0.699,1.026,1.591,1.026,2.682c0,3.841-2.337,4.687-4.565,4.935c0.359,0.307,0.679,0.917,0.679,1.852 c0,1.335-0.012,2.415-0.012,2.741c0,0.269,0.18,0.579,0.688,0.481C19.138,20.161,22,16.416,22,12C22,6.477,17.523,2,12,2z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">GitHub<\/span><\/a><\/li>\n\n<li style=\"color:currentColor;\" class=\"wp-social-link wp-social-link-linkedin has-currentColor-color wp-block-social-link\"><a href=\"https:\/\/www.linkedin.com\/in\/andrei-ludwig-2a51a5299\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M19.7,3H4.3C3.582,3,3,3.582,3,4.3v15.4C3,20.418,3.582,21,4.3,21h15.4c0.718,0,1.3-0.582,1.3-1.3V4.3 C21,3.582,20.418,3,19.7,3z M8.339,18.338H5.667v-8.59h2.672V18.338z M7.004,8.574c-0.857,0-1.549-0.694-1.549-1.548 c0-0.855,0.691-1.548,1.549-1.548c0.854,0,1.547,0.694,1.547,1.548C8.551,7.881,7.858,8.574,7.004,8.574z M18.339,18.338h-2.669 v-4.177c0-0.996-0.017-2.278-1.387-2.278c-1.389,0-1.601,1.086-1.601,2.206v4.249h-2.667v-8.59h2.559v1.174h0.037 c0.356-0.675,1.227-1.387,2.526-1.387c2.703,0,3.203,1.779,3.203,4.092V18.338z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">LinkedIn<\/span><\/a><\/li>\n\n<li style=\"color:currentColor;\" class=\"wp-social-link wp-social-link-facebook has-currentColor-color wp-block-social-link\"><a href=\"https:\/\/www.facebook.com\/rand.druid\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12 2C6.5 2 2 6.5 2 12c0 5 3.7 9.1 8.4 9.9v-7H7.9V12h2.5V9.8c0-2.5 1.5-3.9 3.8-3.9 1.1 0 2.2.2 2.2.2v2.5h-1.3c-1.2 0-1.6.8-1.6 1.6V12h2.8l-.4 2.9h-2.3v7C18.3 21.1 22 17 22 12c0-5.5-4.5-10-10-10z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">Facebook<\/span><\/a><\/li>\n\n<\/ul>\n\n\n\n<p>Skilled in multiple programming languages and technologies, with a strong expertise in C# and networks. Successfully completed numerous software projects as a solo developer or team leader.<\/p>\n\n\n\n<p>Currently working as a self-employed contractor.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-global-padding is-layout-constrained wp-container-core-group-is-layout-ebee8dc1 wp-block-group-is-layout-constrained\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)\">\n<h2 class=\"wp-block-heading alignwide\">Services<\/h2>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\" style=\"margin-bottom:24px\"><img loading=\"lazy\" decoding=\"async\" width=\"1365\" height=\"603\" src=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake1.jpg\" alt=\"\" class=\"wp-image-258\" srcset=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake1.jpg 1365w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake1-300x133.jpg 300w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake1-1024x452.jpg 1024w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake1-768x339.jpg 768w\" sizes=\"auto, (max-width: 1365px) 100vw, 1365px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Front-end<\/h3>\n\n\n\n<ul style=\"margin-left:-25px\" class=\"wp-block-list is-style-checkmark-list has-medium-font-size\">\n<li>WPF applications (Windows)<\/li>\n\n\n\n<li>CLI utilities (Windows &amp; Linux)<\/li>\n\n\n\n<li>ASP.NET sites (multi-platform)<\/li>\n\n\n\n<li>Qt (multi-platform)<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\" style=\"margin-bottom:24px\"><img loading=\"lazy\" decoding=\"async\" width=\"1363\" height=\"603\" src=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake2.jpg\" alt=\"\" class=\"wp-image-259\" srcset=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake2.jpg 1363w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake2-300x133.jpg 300w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake2-1024x453.jpg 1024w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake2-768x340.jpg 768w\" sizes=\"auto, (max-width: 1363px) 100vw, 1363px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Back-end<\/h3>\n\n\n\n<ul style=\"margin-left:-25px\" class=\"wp-block-list is-style-checkmark-list has-medium-font-size\">\n<li>Services and daemons, database design, experience with MySQL\/MariaDB, MS SQL, Oracle<\/li>\n\n\n\n<li>Message driven multi-service systems with Apache Kafka, Rabbit MQ, proprietary protocols<\/li>\n\n\n\n<li>Windows and Linux, C# and C\/C++<\/li>\n\n\n\n<li>From Hi-End servers to Raspberry Pi and Arduino<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\" style=\"margin-bottom:24px\"><img loading=\"lazy\" decoding=\"async\" width=\"1365\" height=\"603\" src=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake3.jpg\" alt=\"\" class=\"wp-image-260\" srcset=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake3.jpg 1365w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake3-300x133.jpg 300w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake3-1024x452.jpg 1024w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/lake3-768x339.jpg 768w\" sizes=\"auto, (max-width: 1365px) 100vw, 1365px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Integration<\/h3>\n\n\n\n<ul style=\"margin-left:-25px\" class=\"wp-block-list is-style-checkmark-list has-medium-font-size\">\n<li>Years of experience in communicating with all types of hardware. From GNSS trackers to video cams, from PTU to satellite modems<\/li>\n\n\n\n<li>Experience with dozens of Serial\/Network\/Analog protocols<\/li>\n\n\n\n<li>Protocol reverse engineering with Wireshark<\/li>\n<\/ul>\n\n\n\n<p class=\"is-style-default has-manrope-font-family has-medium-font-size\"><em><strong>Got a rack full of diverse hardware and want to rule it all from one neat app over the network? <\/strong><\/em><br><em><strong>I can make it happen.<\/strong><\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-group alignwide is-layout-grid wp-container-core-group-is-layout-5fdb10e5 wp-block-group-is-layout-grid\" style=\"padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-group is-vertical is-content-justification-stretch is-nowrap is-layout-flex wp-container-core-group-is-layout-627337ab wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-content-justification-left is-layout-flex wp-container-core-group-is-layout-dd225191 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading is-style-default\">Current activity<\/h2>\n\n\n\n<p class=\"is-style-text-subtitle is-style-text-subtitle--2\">I am working with Software-Defined Radio in the rapidly evolving area of digital communications.<\/p>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default wp-container-content-5fd69529\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"316\" src=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/em200-digital-compact-receiver-side-view-rohde-schwarz-3.png\" alt=\"\" class=\"wp-image-255\" style=\"object-fit:cover\" srcset=\"https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/em200-digital-compact-receiver-side-view-rohde-schwarz-3.png 1280w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/em200-digital-compact-receiver-side-view-rohde-schwarz-3-300x74.png 300w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/em200-digital-compact-receiver-side-view-rohde-schwarz-3-1024x253.png 1024w, https:\/\/www.ludwigpro.net\/blog\/wp-content\/uploads\/2024\/12\/em200-digital-compact-receiver-side-view-rohde-schwarz-3-768x190.png 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-group alignwide is-layout-flow wp-container-core-group-is-layout-d58a0413 wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)\">\n<h2 class=\"wp-block-heading has-x-large-font-size\" id=\"completedProjects\">Completed projects<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-cbe57604 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Active Wi-Fi monitoring<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--3\">2021-2022<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> .NET, MS VS &amp; C#, SQLite, HASP;TCP\/IP, Wi-Fi;<br>Customized Linux kernel drivers for Realtek, Ralink Wi-Fi adapters;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> Simultaneous control of 8+ Wi-Fi adapters in Linux box from Windows WPF App; Efficient quick detection of all APs\/Clients in 2.4GHz and 5GHz bands, logging, alerting, white\/black listing;<br>Special modes (e.g. channel jamming, forced disconnect);<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Windows PC, Linux box, remote Wi-Fi probes built from OpenWrt APs;<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Video security system<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--4\">2019-2021<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> .NET, MS VS &amp; C#, Python;<br>TCP\/IP, serial comm \/ digital IO; Image recognition;<br>Video-over-IP, RTSP, Pelco-P\/D;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> Online video, remote PTU &amp; optics control;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Windows server and Raspbian OS box;<br>Multispectral HD Cameras \/ Lenses;<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Corporate VPN solution<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--5\">2017-2018<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> C++, Qt, Linux kernel driver;<br>FPGA integration, AES, TCP\/IP;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> TCP server for VPN tunnels, encryption on secure FPGA board;<br>Upper level services based on custom XMPP extensions;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Server &#8211; Linux PC+FPGA;<br>Clients &#8211; Windows, Linux, Android, Mac, iOS;<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Advanced network security monitoring<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--6\">2013-2017<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> .NET, MS VS &amp; C#, MS SQL, HASP;<br>TCP\/IP, promiscuous packet capture (PCAP);<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> Online protocol parsers for 20+ protocols (DNS, FTP, SMTP, POP3, Telnet, HTTP, Torrent etc.);<br>Special modes: MitM, Arp Spoofing, SSL stripping, Evil Twin, Wi-Fi deauth. etc. over Ethernet, ADSL, Wi-Fi;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Windows server, Linux box;<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Billing system for Internet provider<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--7\">2010-2013<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> .NET, MS VS &amp; C#, Javascript, IIS &amp; ASP.NET, MS SQL; Paypal API;<br>TCP\/IP, SNMP, RADIUS, Telnet\/SSH, IP routing, Wi-Fi, SQL;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> Internet access control, automatic billing;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Cisco 3600, 7200.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Management system for mobile satellite stations &amp; stationary SATCOM teleports<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--8\">2000-2010<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> Delphi for .NET, MS VS &amp; C#, IIS &amp; ASP.NET, MS SQL;<br>TCP\/IP, SNMP, HTML, serial comms, NMEA, SQL;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> Single management solution for SATCOM teleport;<br>Environmental control, rack monitoring, antenna tracking, data channels status, equipment inventory etc.<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Windows server, satellite dishes from 2.4m to 16m diameter, transceivers \/ BUCs, satellite modems, GPS clock, weather station, analog\/digital sensors, routers\/switches etc.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Computer Telephony system for Telecom operator<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--9\">1999-2000<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> Delphi, C++; ActiveX &amp; COM; Oracle DB;<br>Analog FXO\/FXS, Voice-Over-FrameRelay, Voice-Over-IP;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> Business mailbox with concierge functionality;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Windows server, Motorola, RAD, Nuera, Comstream, Comtech;<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-color:var(--wp--preset--color--accent-6);border-top-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading\">Monitoring system for ground satellite station<\/h3>\n\n\n\n<p class=\"is-style-text-annotation is-style-text-annotation--10\">1995-1999<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Technologies:<\/mark><\/strong> Pascal\/Delphi, IIS &amp; ASP.NET, Interbase;<br>TCP\/IP, serial comms, analog telephone lines;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Functionality:<\/mark><\/strong> data channels monitoring &amp; control, antenna tracking control;<br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-accent-3-color\">Hardware:<\/mark><\/strong> Windows server, satellite modems, voice\/data multiplexers, antenna tracking, UPS etc.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Hi, I am Andrei Ludwig Results-driven Computer Programmer with 30 years of experience in developing and implementing software solutions. Skilled in multiple programming languages and technologies, with a strong expertise in C# and networks. Successfully completed numerous software projects as a solo developer or team leader. Currently working as a self-employed contractor. Services Front-end Back-end [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-no-title","meta":{"footnotes":""},"class_list":["post-2","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/2","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=2"}],"version-history":[{"count":60,"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/2\/revisions"}],"predecessor-version":[{"id":501,"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/2\/revisions\/501"}],"wp:attachment":[{"href":"https:\/\/www.ludwigpro.net\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=2"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}