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.

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.

I am a software developer with experience in web applications, APIs and API clients (Java, Scala, PHP, Python, AWS, Docker, Kubernetes); scripts (Python, bash, Perl); machine learning (C++, Python) and audio signal processing (C++, Matlab).

Versatile and detail-oriented professional with over a decade of experience across data management, quality assurance, and international client coordination. Proven track record in maintaining large-scale databases, resolving complex factual discrepancies, and managing cross-cultural communication between global teams. Exceptionally fluent in both English and Bahasa Indonesia, with a strong background in Computer Science and a sharp eye for digital content creation and quality control.

I am a web developer primarily specialized at Ruby on Rails. I try to write clean and readable code without dirty hacks and Perl-like obfuscation, making it available for future maintenance and updates. I also prefer to use available libraries for common things instead of reinventing the wheel. I did various Rails project in the past from simple landing pages, which are mostly HTML with a simple logic to collect user contacts, to a complex video hosting website. Now I'm looking for long-term work on projects with a good workflow, code reviews and clean task descriptions, where you know what you need and I know (or can find/learn) how to make it work. Expected working hours are up to 20 .. 30 per week, but can be 40 hours for some period of time. My main skills include: * Ruby on Rails 4.x and newer. * Working with various gems like carrierwave, nokogiri, simple_form, rubycas/devise, cancan and many others. * Working with and understanding various APIs. * Building API-only backends. * Working with legacy code. * Some Javascript and jQuery. * HTML and CSS, including some CSS3 features like media queries, shadows and simple animations. * Configuring and maintaining Debian-based Linux distributions such as Ubuntu and Debian itself.

Specialties: PHP, REST technologies, RDBMS, administration and architectural design of High-Availability system

I have 12+ years of experience in developing Mobile apps projects, Web development, Backend system, UX/UI. In-depth understanding of mobile apps(ios + android) architecture, developing optimized memory apps, Honouring guidelines of the apple & android stores. I am working as a system/app architect designer, planner, and executer to help our customers to have better mobile/Web apps and with a transparent development process. Key Skills: Mobile app development (iOS, android, c, swift) Apis/Golang API Databases/System architecture Backend development (Golang, Python, Ruby, Perl, Php, Unix, Nosql, Mysql) Consulting on selecting the correct web server required at a possible low cost. Other strong Skills: Web scraping/crawling/data mining (Perl, Python, PHP) Web automation (Perl, Golang, Php) I have been associated as an independent contributor for few more prominent startups working on new technologies and achieved great success. I am leading a team of 40+ developers working on mobile apps, API development, Web development & backend, and front-end data flow, etc.

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.

Total experience in software development - 8 years. Last 6 years working on Java projects. Last 4 years working in a J2EE project for financial companies. My everyday routines is to fixing bugs and develop a new functionality in very big and really complex banking software project with variaty of used technologies: Hibernate, GWT+ExtGWT, common web (javascript+html+css), SQL, ... I have a really wide specialisation and can solve a different issues, using wide technologies arsenal: from script-languages (perl, python) to JavaEE, from Eclipse IDE to vi+dbg (linux). Location is Russia.

Web Security is my life. I have been working as Web Developer cum Web Security Specialist since 2009 and did so many projects in real life time related to Website Development, Designing, Malware Removal, Website Security, Server Hardening, Cpanel Hosting Migration, Domain Integration, DNS Setup, Linux Setup, VPS, WordPress Security, Research Writing, Article Writing, Technical Writing etc To achieve success and bright career in a progressive work environment there by giving an exposure to my creative skills and abilities to perform better in the field of Graphics and Designs. Over the last 5-6 years, I have gained so much experience in analysis, design and development of various websites and web applications. I have worked extensively in PHP, MySQL, AJAX, Java Scripting, HTML and CSS. In addition, I have worked extensively worked on open sources like WordPress and Joomla.. ============================================== I also have very much experiences in following domains: ============================================== 1. Malware Removal - PHP/HTML/WordPress/CMS/E-Commerce 2. Website Development - HTML/CSS/PHP/JS/Ajax/WordPress/Joomla 3. Website Security (Complete in any platform) - PHP/ASP/WordPress/Joomla 4. Website Troubleshooting - Any platform 5. Website Optimization - PHP/HTML/WordPress Only 6. Website Migration - From Domain to Domain and From Host to Host. I also specialize in Black Box/White Box Penetration Testing, Computer Forensics, Code Auditing, Ethical hacking, HTML5/CSS3/PHP/JS/AJAX/JQUERY/WORDPRESS/JOOMLA/E-Commerce ============================================== Academic and Professional Certification: ============================================== [#] M.Sc In IT Security & Computer Forensic [#] Certified Ethical Hacker - CEH [#] Certified Information Systems Security Professional - CISSP [#] Red Hat Certified Expert - RHCE As an IT Security Specialist, I have done following projects in my professional career. [#] Penetrated and patched more than 100+ Global Websites. [#] Managed and Secured more than 50+ servers including windows and Linux (Cloud/Shared/Dedicated). [#] Identified security issues and risks management to various platforms such as e-commerce based websites, WordPress, Magento, Joomla and many more. [#] Trained more than 1000+ IT professionals from around the globe. [#] Brilliant understanding ,excellent command and practical exposure to OWASP, SANS and CWE. [#] Vulnerability Analysis/Assessment & Pen-testing Box in Kali Linux, BackTrack 5r3, Blackbuntu, Metasploit etc. [#] Vulnerabilities and Protection - SQLI, XSS, XSRF, CSRF, RTE, LFI, Windows IIS Vulnerabilities, DNN, DDOS Attack, Click Jacking, Middle Man Attack, ARP Spoofing [#] Programming Languages - Shell Scripting ,C , C++, C#, Perl, Python, Ruby on Rails, Visual Basic, Batch File. [#] Web Design Language - HTML, XHTML, HTML5, CSS3, PHP, JavaScript, jQuery, AJAX ======================================== Services that I provide : ======================================== [#] Vulnerability Assessment, Penetration Testing , Black Box | White Box Testing | Code Auditing | Network Security Testing | Cyber Fraud Investigation and anything related with Hacking, Security and Forensic. [#] Removal of Malware | Viruses | Backdoors | Shell | Phishing | Spam and any other malicious codes [#] Recovery and Securing Joomla | WordPress | Magento | OpenCart | PHPBB [#] Recovery and Securing Custom Platforms [#] Server Setup and Maintaining ( Windows 2003/2008/2012; Linux/ Ubuntu / Redhat / Debian ; Apache / Centos / Nginx / Chef / Critix / Cpanel/ Plesk / DirectAdmin/ WHM/ Webmin ) I have ability to work under pressure and meet deadlines. Client's satisfaction is my first priority. Looking Forward to your Positive Response.