Proud to say I'm one of the few almost extinct species that are normal, polite, reliable, easy to communicate with and deliver quality work. I've hired freelancers in the past and know how difficult it is to find a good person. Currently I'm focusing on developing AI-Powered solutions using Python. Below are details of my experience. Software Developer specializing in Web Data Extraction and Manipulation. Expert in web data retrieval (also referred to as web scraping, crawling or web-based data collection), data manipulation (using regular expression parsing) and storage (e.g. MySQL, Postgres). Extensive experience in processing of large data sets. For example, parsing out the complete list of medical professionals in USA, over 3 million records including nurses, physicians, chiropractors, dentists, hospitals, pharmacies, etc. Another example: collecting all the businesses in USA from Google using Google Places API and Google Nearby Search API as well as Yelp API. - Fluent in English, French, Polish, and Spanish. - Government of Canada Secret Security Clearance (avail. on request). - Very organized, innovative, and dedicated to work. - Excellent communication skills (both written and spoken). My objective is to deliver quality solutions and leave my clients satisfied. PS. Here's what ChatGPT thinks of me based on all of our interactions :-) "Based on our interactions, one thing that stands out is your attention to detail and determination to troubleshoot effectively. Whether you're navigating through system settings, managing code, or exploring new tools, you're methodical and thorough. You often explore multiple angles when tackling a problem, which shows resilience and problem-solving skills. You might already know this about yourself, but perhaps you don't fully realize how much your persistence and willingness to dive deep into technical challenges sets you apart. These traits are valuable not only in programming but in any complex, evolving task you face."

APIs | Automation | Data Visualization | Ecommerce | Open Source | WordPress I have helped over 100 entrepreneurs in over a dozen countries start and/or expand their businesses online since 2006. I have led several teams as well as worked as a liaison between developers and venture capitalists who often speak different languages (both literally and metaphorically). I love hearing about new ideas people have to add value in the business or consumer world. Contact me now and let's take your business to the next level! "This is the second time using Robert for a business project. I have hired dozens of Upwork contractors- Robert is #1 when it comes to anything I could have asked for in programming and understanding the foundations of a project and timelines. Hire him- you will not be disappointed with his commitment to the project, timelines- and understanding of your overall business goals" - Michael M., Amazon Vendor "I highly recommend Robert as the freelancer for your next project. His technical skills are admirable and equally matched by his project skills. Robert does an excellent job asking the right questions to understand the purpose and objective of your project, allowing him to provide the right solutions and finished product for you. Thank you, Robert, and I look forward to working with you on future projects!" - Josh M, Phase II Inc "I really liked Robert because he has been very helpful and timely and was able to communicate effectively and met all deadlines. I will be using his services in the future and would highly recommend him to others!" - Tejas Test Prep "Robert was amazing. Would highly recommend him and use him again. He completed the work quickly and efficiently, made the small fixes quickly, quickly grasped what we were trying to do and handled it expertly. Great communication, which was an issue with a previous out of country freelancer. Will definitely use him again and would highly recommend him." - Clif V., Family Finder

You need someone who doesn’t just write C++ you need someone who understands how exchanges, clearing systems, and trading platforms actually work from the inside. I’m a Senior Engineer at Deutsche Börse Group, where I build and maintain the real-time market data infrastructure that processes millions of messages per day for one of the world’s largest derivatives exchanges. I’ve spent years deep inside the machinery of institutional trading, feed handlers, protocol gateways, matching engine interfaces, and the kind of systems where microseconds matter and downtime isn’t an option. What I do for clients: I help hedge funds, prop trading firms, brokers, and fintech companies build, fix, or optimize their trading infrastructure, the systems that connect them to exchanges, process market data, execute orders, and keep them compliant. Typical projects I take on: • FIX engine implementation, certification, and connectivity to exchanges (EUREX, CME, LSE, ICE, Nasdaq) • Market data feed handlers, parsing, normalizing, and distributing real-time data at scale • Low-latency C++ systems, shaving microseconds off order routing, reducing jitter, profiling hot paths • Protocol integration, ETI, EOBI, OUCH, ITCH, FIX 4.2/4.4/5.0, SBE, FAST • Trading system architecture, designing the full stack from gateway to risk engine • Migration and modernization of legacy trading platforms Why clients choose me over a general C++ developer: • I work inside a Tier 1 exchange daily. I don’t guess how exchange protocols behave, I know, because I build them. • I’ve worked with systems processing 10M+ messages/day with sub-millisecond latency requirements. • I understand the full lifecycle: connectivity, certification, conformance testing, failover, disaster recovery. • I can speak to your quants, your infrastructure team, AND your compliance people. Tech I work with daily: C++ (modern C++17/20, multithreading, lock-free structures, Linux systems programming), Java/Spring Boot for middle-tier services, FIX/ETI/EOBI/SBE protocols, Kafka and messaging pipelines, Docker/Kubernetes for deployment, GCP/AWS infrastructure. How I work: I prefer focused, high-impact engagements typically 10-20 hours/week alongside my full-time role. I’m based in Frankfurt (CET timezone), responsive on Slack/Teams, and I deliver production-grade code with tests, documentation, and deployment scripts. No hand-holding required. Let’s talk about what you’re building.

Web site support and administration, Linux administration, Supercomputer design, HPC Cluster management systems, Lustre parallel storage systems. I provide Computing cluster / Render Farm with node following characteristics: 2 x Intel Xeon E5-2670 @ 2.6 GHz 16 cores 64 GB ECC RAM 3 x NVidia Tesla M2075 Infiniband FDR 56 Gbit/s Price starts form $75 node/month via Upwork.

I have extensive experience of working with huge enterprises (ISP, Telecom, Defence) and delivering operational support and enterprise scale projects with 100% success rate. My work experience is in the following areas. - System Administration (Windows, Linux, Solaris) - Enterprise Storages (SAN, NAS, DAS) - Enterprise Backup (Veeam, HP Data Protector, EMC Networker) - Disaster Recovery (VMware SRM, Storage replication) - Virtualization (VMware, Hyper-V) - Containers (Dockers, Kubernetes) - Public Cloud (AWS, Azure) - Devops (Ansible, Foreman, Puppet) - High Availability (Windows Cluster, Redhat Cluster, HP Service Guard) - Scripting (Bash, PERL, Powershell, PHP) - Other services (Active Directory, Email servers, RADIUS servers, DNS, DHCP, LDAP, kerberos) I currently hold following certifications Certifications:- • AWS Certified SysOps Administrator – Associate • AWS Certified Solutions Architect – Associate • AWS certified Security Speciality • Certified Kubernetes Application Developer (CKAD) • TOGAF 9.1 Foundation (Certification Id 112933) • TOGAF 9.1 Certified (Certification Id 112933) • MCSE: Cloud Platform and Infrastructure • MS: Architecting Microsoft Azure Solutions • Microsoft Certified Professional Windows Server 2012. • Microsoft Certified Solution Associate Windows Server 2012. Major Project:- - Design & deployment of Virtual Private Cloud under AWS and migration of business critical applications ensuring HA with multiple AZs and MS SQL mirroring. - Architecting and Designing solution for consolidation of Physical servers on virtual platform to share Infrastructure services between four major Telecom Operators in Asia (VMware, Hyper-V, SCVMM) - Leading the Infrastructure domain to validate Infrastructure solutions and working as Infrastructure architect for major a Telecom Operator

Current areas of interest: Browser extensions, plugins, bookmarklets and etc. Developed dozens browser extensions for Chrome and Firefox browsers for clients and for personal use. I've gained rich experience in Ebay API, Google Drive API, VK API, online dictionaries, html5 video and a lot of other APIs and technologies. And I'm always ready to master something new. Page modifications, script injections, toolbars, popups, mashups, API integration, user action automation - that's my job and I really like it! Also I have strong web-development background and I have got rich experience in: - Perl, PHP, HTML, CSS, Javascript, jQuery, AJAX, MySQL - Yii, Wordpress, Joomla - Adobe Photoshop, Adobe Illustrator. Master's Degree in Computer Science. Have 7+ years of experience in IT Industry. I'm looking for the opportunity to utilize my varied skills in full-time or part-time work.

**IT Specialist & Server Engineering Expert** With over 10 years of experience in the IT industry, I am a results-driven systems engineer specializing in server infrastructure, cloud technologies, and automation. My background includes working with large hosting companies where I excelled in troubleshooting performance issues, configuring servers, and integrating cutting-edge technologies into scalable environments. *Key Expertise*: - LAMP Stack (Linux, Apache, MySQL, PHP) - Linux Mail Stack: Exim/Postfix, Dovecot - Open-Xchange Products: PowerDNS, Open-Xchange, Dovecot Pro - Load Balancing: F5 Big-IP, HAProxy - CI/CD Pipelines: Jenkins, with deep knowledge of scripting Jenkins pipelines and automating workflows - Virtualization: Proxmox (LXC containers, VMs) - Automation: Ansible for streamlined configuration management - Containerization: Docker, Kubernetes for scalable microservice architectures - IaC: terraform I specialize in delivering optimized, secure, and reliable server solutions that meet the growing demands of modern IT environments. My passion for automation and continuous improvement ensures efficient workflows and infrastructure scalability.

Hello, I am a software developer, troubleshooter with a wide range of skills and experience. For the last 15 years, I take part in tens of projects where I used my knowledge of different software tools, libraries, and frameworks. My profile : My Overall technology stack: ✓ Primary: Rust, Java, Python, Perl ✓ Secondary: C++, JavaScript, PHP, Ruby ✓ MySQL, Postgresql, Oracle, Informix, MS SQL, SQLite, MongoDB, BerkeleyDB ✓ JQuery, YahooUI, Angular ✓ Git, Subversion, CVS, Mercurial ✓ Nginx, Apache, Lighttpd, and others. ✓ HHVM, FastCGI, Memcached, Varnish, Squid, HAProxy ✓ SSH, OpenSSL, PGP, Kerberos, Radius, ✓ WebRTC, P2P. ✓ Postfix, SPF, DKIM, DMARC. ✓ POSIX, Win32/Win64, Android, iOS, macOS ✓ Networking: TCP/IP, UDP, Firewalls, Routers, DNS (Bind9), DHCP ✓ Debian, Ubuntu, RedHat, SuSe, CentOS, ArchLinux, Vyatta, Gentoo, Knoppix, Damn Small Linux, FreeBSD, NetBSD,OpenBSD, Mac OS X; non- *nix: DOS (MS,IBM,DR,MSX), Windows from 3.0 to Windows NT(including XP-10), OS/2. ✓ XML, JSON and msgpack, TCP, UDP, HTTP, FTP, SMTP, libvlc, android, avconv (FFmpeg), FFmpeg, vlc, Wowza, evostream, ImageMagic, GD, ImgSeek, Gimp, RTMP, RTSP, HLS, DASH, MSS, HDS. ✓ My IT hobbies: 3D modeling and printing, FreeCad, CNC, Arduino, ESP32 Some of my previous projects are available on Upwork history and portfolio.

Over 10 years experience as Linux administrator . Configured and maintained hundreds of servers having different tasks : web server (Apache/Nginx+php/ruby/perl), mail server (with AV and spamassassin), file server, mysql/postgresql, dns, IM server, VOIP, firewall/VPN. As a network administrator in a small WISP i built my skills up in wireless, routing/BGP, routers/swithes/firewalls, network monitoring/troubleshooting. I write my own scripts (shell/Perl) . Also i have limited experience in programming, mostly Php and C.

Scientific Programmer with 5 years of professional experience. I have mined data using web scraping tools and publicly available APIs. I specialize in data gathering, building pipelines to clean and analyze it, and building web interfaces to view and interact with data insights. Projects i have built include bioinformatics tools, fantasy sports database building and analysis, video transcription application via google cloud computing services, and automated cryptocurrency trading.