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.

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.

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.

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

✅ 98 Projects Delivered ✅ Top-Rated Plus Freelancer ✅ Over 16000+ UpWork hours logged I am a Freelance Full Stack Web Developer with over 20+ years of experience in core website, web application development, and database development. I do utilize LAMP STACK Architecture to build web applications and websites precisely as per your project specifications. My strongest skills include: • PHP, PHP Frameworks (Laravel, Yii, and Codeigniter) • RESTful API Development and Integrations • Database development (MySQL, Postgres) • CRUD (Create, Read, Update, Delete) & CRON Functionality • WordPress, Craft CMS • HTML5, JavaScript, and CSS3. • JavaScript frameworks Vue.js, Angular.js. • Web server technologies Apache, Nginx, etc. • GIT I work and help clients who: 1: Need Expert Full Stack PHP Developer for their new or either existing web projects. 2: Want team member to work in a team and build solutions for them their clients. 3: Need Maintenance, enhancement, and support for their web-based solutions. 4: Want Additional new module development and back-end development with logic and integrations. 5: Have an idea/concept & you need someone to build custom CRM, SaaS, Marketplace, User Management Portal, Subscription and membership portals, eCommerce, Multi-Tenant, Backend solution, and much more as per the business need. I believe in quality work along with clear communication and working closely with clients to achieve the common and set goals for projects. I always maintain a long-term relationship with my clients. Let start an initial discussion for your project and see if and how my skills and expertise can add value to your project. Waiting for your message to start a discussion. Adept PHP Laravel Developer Deepak Every Client Who Worked With Me Ever, Got Result. Ever!

My core qualifications: - Planning, deployment, integration and operational support of solutions utilizing a wide range of services and application ecosystems in heterogeneous environments -- from Nginx and Postgres to web parsing frameworks, Windows Terminal Services and Asterisk PBX as some examples. - Experienced with Interpreted Languages including Perl - Understands Compiled languages, including C, C++, C#, and Java. - Strong use of Shell scripting languages, including Bash for Linux and Mac platforms and PowerShell for Windows systems - Facility with development methodologies, including Agile - Excellent configuration management using Puppet Chef and Ansible - Extremely knowledgeable about CI/CIT/CID integration. - Testing and Automation: Cypress, Selenium (Pyton and Java), AutoIT for Windows - Basic analog and digital circuit design - Labcenter Proteus and National Instruments Multisim circuit simulation suites - Eagle PCB layout, basic AVR ATMega MCU programming in C (CodeVison) and Assembly languages HTML and CSS (technical level) - AsteriskPBX

Data Maining : Oracle PL/SQL - 4,5 / 5 MySQL - 4/5 Web Dev : HTML 4/5 PHP 3/5 CSS 3/5 WordPress 3/4 JavaScript 2,5/5 Programing : Perl - 3/5 Python - 2/5 C# 1,5/5 (Very long brake from from active use) Java 1,5/5 (Very long brake from from active use) Data Visualisation : BIRT Reports 4/5 Jasper 4/5 Power BI - 3/5 EXCEL 4,5/5

I'm a software engineer specialising in blockchain and backend development with 4 years of professional experience. I have a degree in Computer Science & Applied Mathematics, and I combine both applied research, and industry-level experience in blockchain development. I have been working in a research team developing a new protocol -- Byzantine Optimistic Reliable Broadcast, resulting in a successful publication of our paper on the International conference of OPODIS 2024. As well as that, I was working in three startups in the blockchain space, where I was a core developer of a Cosmos SDK based blockchain and of a consensus workflow execution layer (built on the pBFT-like protocol). I was working on development of Solidity smart contracts and on integration of the Symbiotic and EigenLayer restaking protocols. I was interning at Google twice while studying at the university (totalling to 7 months of full-time work at the Google office), and I have extensive experience with backend development in Java, Kotlin and Golang. I deliver high quality code with a focus on readability, efficiency, extensibility and good test coverage. Blockchain skills: ✅ Ethereum, EVM, Solidity ✅ Cosmos SDK, Ignite ✅ DeFi: smart accounts, ERC-4347, ERC-7579, ERC-1967, ERC-7201, ERC-20 ✅ Deep knowledge of consensus protocols: PoW, PoS, pBFT ✅ Zero-knowledge proofs, zk-snarks, zk-starks ✅ Staking & restaking protocols, Symbiotic & EigenLayer ✅ Tools: Foundry, Hardhat Backend skills: ✅ Proficient in Java, Kotlin, Golang ✅ Microservices architecture, event-driven architecture & CQRS ✅ RESTful API, GraphQL, gRPC ✅ Spring Boot, Spring MVC, Kafka, Hibernate, JDBC ✅ Databases: PostgreSQL, MySQL, MongoDB ✅ CI/CD: Docker, Kubernetes, AWS ✅ Frontend: Javascript, HTML, CSS ✅ Scripting languages: Python, Bash, Perl ✅ Tools: Git, Github, GitLab

Independent Systems & AI Consultant April 2009 – Present Provide high-end cloud architecture, server tuning, critical-incident recovery, and modern data engineering services to global clients. Completed 140+ engagements on Upwork with a perfect 5.0/5.0 feedback rating. AI Data Pipeline & Serverless Warehousing (2025 – 2026): Engineered a serverless data catalog pipeline using Python (BeautifulSoup, requests) to automatically scrape, parse, and clean investigative articles from target web sources [1]. Structured the raw extracted payload into optimized Apache Parquet tables and deployed them directly to Hugging Face Datasets for serverless hosting [1]. Built an interactive search and query dashboard in Gradio, utilizing custom DNS records (ALIAS/CNAME) to map and serve the app securely on DigitalOcean's cloud. Cloud Infrastructure & Migrations (AWS EC2 / VPS): Architected and built high-availability Linux cloud servers on AWS EC2, configured with WHM/cPanel, Concrete5 CMS, and optimized PHP environments. Successfully migrated legacy physical dedicated servers to scalable Virtual Private Servers (VPS) with CentOS/RHEL. Critical System Recovery & Administration: Diagnosed and resolved emergency service outages, including JBOSS server crash failures, Plesk/cPanel software conflicts on legacy CentOS nodes, and data recovery via mounting RAID arrays on FreeBSD. Configured Snort IDS, hardened server network boundaries, and conducted end-to-end performance audits. UNIX Engineer | E Solutions Corporation March 2008 – April 2009 (1 year 2 months) Supported physical operations and infrastructure for a Tier-1 collocation facility. Administered and engineered OpenBSD, FreeBSD, Linux, and Windows server environments daily. Identified and successfully resolved a high volume of network and host-based security vulnerabilities. Stabilized the physical bandwidth billing system for accuracy and provided system-level engineering support to the web development team. UNIX System Engineer | Hilton Grand Vacations (HGVC) November 2006 – March 2008 (1 year 5 months) Served as the single onsite point of operations for all HP-UX, Solaris, FreeBSD, macOS X, and Linux servers. Enterprise Data Warehouse (EDW) Architecture: Designed and built a custom corporate Data Warehouse using RedHat Enterprise Linux, IBM Information Server, and the Sun N1 toolkit. Backported RedHat clustering utilities and GFS modules specifically for RHEL 4 to support database stability. Tailored operating systems to run the IBM Information Server 8 product family, including IBM DB2 V9.3, WebSphere 6.0, DataStage, and QualityStage. Web Presence Engineering: Designed and deployed the company's external web servers on the Solaris 10 platform using Sun T2000 hardware. Leveraged Solaris Zones, hardware RAID, and the ZFS filesystem to isolate and optimize traffic. Authored custom system automation utilities in Perl, C, and the Bourne shell to debug complex kernel and network issues. UNIX Administrator | Vortech, Inc. 2004 – 2006 (2 years) UNIX Administration & Support | Magna Computer Corp September 2003 – May 2004 (9 months) UNIX System Administrator & Network Engineer | Independent Consultant November 2001 – July 2003 Implemented OpenBSD, Linux, and Windows servers in high-density colocation centers. Configured custom web application servers from scratch using Apache, Perl, PHP, and MySQL. Programmed terminal-based console utilities in C and ncurses, utilizing the GTK toolkit and X11 API. Second Level Support | Jobwarehouse May 2001 – September 2001 (5 months) Provided secondary engineering support for primary web servers and high-volume data processing tasks. Education Valencia Community College | 1996 – 1998 | Computer Science & Systems Study Winter Park High School | 1992 – 1996 | Gifted Academic Program Professional Recommendation "Aaron is a very good systems engineer for Linux, UNIX and Windows. He has an in depth understanding of system internals. I found him to be an honorable man that stands behind his word and keeps on track of the project. He would make a good supervisor in any company." — Shelton R., Sr. IT Consultant / DB2 DBA Expert, Xtivia (worked directly with Aaron at HGVC)

DevOPS Engineer with 11+ years matured (System Administrator with 21+ years), experienced, result-oriented and problem-solving professional individual who is adept at planning and prioritizing engineering activities and resources in order to get projects completed on time and withing the budget. Skilled in Python, Bash, PHP, Ansible, Terraform, AWS Cloudformation, Containers and CI/CD development, automation and so on. Strong information technology professional with a Master degree focused in Information Security from Zaporizhzhia National Technical University. Second Master degree in Finances. Having been a System Administrator, Web Software Developer, Security Engineer, DevOPS, Team Lead, Software Architect and a Director of the company's branch.