- 🛠️ macOS/iOS Development: 10+ apps shipped using Swift/Swift UI/Objective-C - 🤖 VBA Automation: Delivered various macros/automation for clients. - 🚀 Full-Stack Capability: Type Script & Python (Flask/Django) & C++ backend integration Technical Arsenal: 🖥️ macOS/iOS Development - Swift/Swift UI: 10+ years, 10+ apps shipped - Objective-C: Legacy system migration expertise - Core Frameworks: AppKit, Core Data, Combine - macOS Code Signing and Notarization 🤖 Automation Engineering - VBA: 10+ years, enterprise-grade solutions - AppleScript: Seamless macOS integration - Python Automation: Selenium, Pandas integration ⚙️ Backend & Integration - Python: Flask/Django REST APIs - C++: High-performance computing modules - Cloud Integration: AWS S3, iCloud Sync My Commitment to Clients: I don't just write code - I deliver solutions that drive real business results. Whether it's automating tedious workflows or building mission-critical macOS/iOS applications. Let's build something extraordinary together.

Specialties: SMS,SMS Gateways,Kannel,Jasmin,Bulk SMS Software,SMS Lead Generation Software, Fortumo, Twilio, Plivo,Clickatell, SMPP 3.4 , HTTP REST API,AT Commands, GSM Modules,telecommunication,VOIP,SIP,IVR. Languages: English(Fluent), French(Fluent), Arabic (Fluent) Programming Skills: PHP 5&7, PL/SQL, shell Scripting, Perl Scripting, Java, Oracle/Mysql,Oracle Forms, Oracle Reports, Solaris/Linux Unix, Application Servers, Web services, advanced XML technologies, SOA patterns.

Unavailable, busy working on the ongoing project, unable to take on new work, but open to discuss something. --- Only if you prefer quality and value proactivity. Willing to take long term projects (3+ months) at lower rate (although this may depend on the project). Looking for long-term part time job during the number of hours per week your business can afford (e.g. 10, 20 or 30 hours/week). Willing to solve urgent tasks submitted in Monday, Asana, Slack (or another PM software) parallelly working on continuous improvements (e.g. security or usability improvements) or new developments for your primary project during remaining number weekly allocated hours. ----------- I am your guarantee of 100%+ completed tasks. I’m expert in Web programming with 30+ years of experience. I always focused on implementing the best engineering practices to optimize and automate processes and increase efficiency. My goal as a programmer — to automate everything as much as possible, implementing intuitive and friendly interfaces and ways of communication between humans and machines. I believe that humans should do only creative work, the routine can be done by programs and robots. I strive to complete everything ever started, not dropping on half way. Autonomous and communicative, always very proactive. Skills: Web application development (both front and back-ends) and System application development for Windows, MacOS, Linux and mobile devices (iOS and Android). Secondary skills: I can do DevOps job, set up CI/CD workflows and automation scripts, create browser extensions, Telegram bots, have some design skills with Adobe Illustrator and AfterEffects. Programming Languages: JavaScript/TypeScript (React/Redux, Node.js+Express.js), GoLang, PHP, Perl. Native system app programming in Delphi and C++ Builder. Some experience with Java, C/C++, C#, Vue.js. And of course, HTML/XML, CSS (Sass, Scss, fav CSS framework is Bootstrap, fav components library is MUI). Databases: MySQL/MariaDB, PostgreSQL, MS SQL, SQLite, MongoDB, Interbase HTTP servers: Nginx, Apache, ISS. Cloud Platforms: AWS, GCP (certified in 2018), Azure, Digital Ocean. CMS, CRM, APIs and integrations: WordPress/WooCommerce, ShopSite, SnipCart, SimpleTix (tickets), GIS / mapping (MapBox, Leaflet.js, OpenLayers), marketing CRMs (HubSpot, Zoho, Klaviyo), Twilio, BigMailer, Meta/Facebook, Bing, full set of Google APIs (incl. Google Analytics), Mixpanel, DocuSign, UPS API, Stripe, PayFlow etc. Security: PCI DSS, HIPAA, GDPR compliance. Git & workflows: GitHub, GitLab, BitBucket, Beanstalk. I prefer working with Cloud services (the most experience with AWS and GCP, some with Azure). For CI/CD workflows I prefer Azure DevOps, although I also have experience with GitLab and GitHub+Netlify. Also, although I’m focusing on software development, I have good design skills, can create user interfaces from scratch and draw vector graphic in Adobe Illustrator, etc. And if you need an old school developer, I do low-level Windows/DOS programming in Assembly language too. And can support and update legacy web-applications written in Perl. I am the author of AppControls and DiskControls packs, 2 popular sets of the VCL components for Delphi and C++ Builder (google for AppControls). Significant periods in my career: 2019 — 2024: freelancer + support, maintenance & couching for past projects (after moving to the USA in 2019) 2007 — 2018: Full Stack Web Architect + Team Leader. Founder and CEO in a small B2B-opriented business operating at the intersection of IT and brand marketing. Public opinion research with gamification. 500+ clients including Microsoft, Samsung, Asus, Mazda, P&G, J&J, Amway, Bayer etc. 1999 — 2007: Windows and Web programmer (Delphi, C++ Builder + various SQL databases + some backend web development in Perl and PHP). Remote work on US companies TeknoSurf. Advertising.com (acquired by AOL) and others. 1995 — 1999: Windows programmer for INET LLC (Kyiv, Ukraine). Energy saving and energy metering systems, development of automated workstation for energy dispatcher. 1992 — 1995: DOS programmer (Turbo Pascal and Assembly language), student’s part-time job.

Over 20 years experience as software engineer and over 8 years as manager and director. Specialize in full stack, cloud and application development, with extensive experience in design, maintenance, and integration work, including DevOps (CI/CD) and related infrastructure, from prototypes to very large scale. Passionate about ensuring business is heading in the right direction, efficiently delivering quality work of my teams, practicing compassionate communication using NVC, and enabling engineers to be the best they can be. Worn many hats prior to management, such as developer, QA, architect, operations and team lead, documenter, and technical project manager.

I've been working with WordPress for over 10 years. No matter the theme, no matter the page builder, I can handle it. I also have great UI/UX skills to complement that. A lot of other freelancers are specialists that either know how to code or know design. I'm a rare blend of both. Here's what I can help with: - WordPress websites -- Working with any template or page builder you may be using -- ACF and custom post types -- Gutenberg blocks -- Email deliverability (make sure your website email doesn't go to SPAM) - New websites - Site redesign - Site migrations - Hosting, email and DNS setup - Google Analytics measurement and reporting - Logo design - Page template design - Landing pages I always act as a true partner and consultant, and not just an "order taker". This is a good thing! If you ask me to do something that doesn't make sense for your business, I will ask clarifying questions to discover what you truly *want* to accomplish and make recommendations that will make an impact. Finally, I have my Google Analytics individual qualification which means I can make sure you can accurately measure the performance of your site.

With over 25 years of hands-on experience in system administration and a profound understanding of GNU/Linux environments, I offer expertise in open source technologies that drive reliable and efficient systems. My proficiency extends to development on various programming languages, enabling me to craft robust solutions tailored to client requirements. Core Competencies: Systems Administration: Proficient in managing all aspects of the Linux operating system, including CentOS, Debian, Ubuntu, and Slackware distributions. Skilled in system optimization, security, and performance tuning. Software Development: Proficient developer with a focus on Perl, Python, PHP, C, C++, SQL, and JavaScript. Well-versed in Object-Oriented Programming (OOP) principles and application development for diverse platforms. Script Development: Adept at developing scripts in Perl, Python, Bash, and Lua for automation, integration, and system enhancement. Strong advocate for leveraging scripting languages for efficient operations. Database Administration: Extensive experience in administering MySQL/MariaDB, PostgreSQL, Oracle, SQLite, and Redis databases. Proficient in database optimization, replication, and backup strategies. Networking Specialist: Deep understanding of TCP/IP and OSI stack layers, with expertise in proxies, HTTP protocol, RADIUS, VPNs, VLAN, SNMP, netflow/ipfix, and BGP. Experienced in designing, implementing, and troubleshooting complex network infrastructures. Monitoring Architecture: Skilled in designing and implementing infrastructure monitoring solutions, including data gathering, processing, and analysis dashboards. Proficient in monitoring various network devices and systems across diverse environments. Web Hosting and Development: Proficient in web server hosting using Apache, Plack, Starman, and Flask, with expertise in HTML5, JavaScript, and REST APIs. Capable of developing dynamic web solutions in Perl, Python, Bash, or C. Professional Approach: I am committed to delivering tailored solutions that align with my clients' needs and exceed their expectations. My creative thinking and positive attitude ensure that challenges are met with innovative solutions, fostering long-term partnerships built on trust and reliability. Conclusion: With a comprehensive skill set and a proven track record of success, I am dedicated to providing exceptional service and driving continuous improvement in every project I undertake. Let's collaborate to transform your vision into reality and achieve unparalleled success.

Full stack developer w/ 12 years experience and focusing on WordPress development and giving clients what they want. Task oriented. Clear communicator. Loves the work, takes ownership of every project. I make myself readily available to my clients 5 days a week and sometimes 6. 'Randall is an honest and available developer. Most developers do not make themselves available to discuss requirements with the client and with the team but randall goes above and beyond the expectation' - Jonathon Bridges 'We really enjoyed working with Randall to complete a rush project. He was easy to work with, in communication regularly and helped us get the job done right.' - Kat Bundy -WordPress -PHP -JavaScript -jQuery -CSS3 -WooCommerce -SASS -mySQL Beyond just tweaking themes, I can offer a high level of WordPress customization, including but not limited to: custom plugins, custom widgets, custom post types and just about any kind of custom functionality you need. If I am one thing it's flexible, client have different methods and needs, no 2 clients are exactly alike. Listening to clients and giving them what they want is what I do. Sometimes a client need an advisor as well as developer, in those situations, I'm adept at providing these kinds a clients a road map to success. 'This was my first experience with Upwork. I couldn't have picked a better partner to help me with my task.' - Joe Cotellese "Randall is super easy to work with, he anticipates issues and is very timely in bringing them up. His skill and cooperation are excellent and he is very accessible. He gets the work done quickly, follows direction and does a great job! He can also think for himself and isn't shy about researching issues. I will happily continue to use Randall for my WordPress development. - Merry Gray "Randall is nothing short of amazing! He is the best developer I've ever worked with. He really came through for us." - Don Slepien

🚀 8+ Years Experience | Custom Solutions, Speed Optimization & API Integrations. ✅ 200+ successfully completed projects 💡 Need a fast, secure, and high-converting website? Let’s build it! I specialize in high-performance web development that drives results. My expertise covers React, Node.js, Laravel, PHP, Next.js, Django, MongoDB, MySQL, PostgreSQL, and Shopify, ensuring scalable and secure solutions tailored to your needs. I focus on clean code, security, SEO, and speed optimization, delivering websites that engage users and grow businesses. Whether it’s an eCommerce store, a SaaS platform, or a WordPress customization, I turn your vision into reality. Services I Offer: ✅ Full Stack Development – Expert in React, Node.js, PHP, Laravel, Next.js, Vue.js and Django for scalable web apps. ✅ Bug Fixing & Debugging – Identifying and fixing critical issues for smooth functionality. ✅ Speed & Performance Optimization – Enhancing loading speed, SEO, and user experience. ✅ eCommerce Development – Shopify, WooCommerce, and custom-built ecommerce stores, sales funnel setup, payment method integration. ✅ API Integration & Automation – Payment gateways, third-party APIs, and automation tools. ✅ Custom Web Development – Business websites, SaaS applications, and PWAs. ✅ WordPress Development – Custom themes, plugins, and optimized WP solutions, figma to wordpress conversion. ✅ Database Management – MySQL, PostgreSQL, Django and MongoDB. ✅ Website Maintenance & Updates – Ongoing security, backups, and performance monitoring. Why Hire Me? ✅ Proven Expertise – 8+ years in full-stack development across multiple industries. ✅ Client-Focused Approach – Custom solutions tailored to your business needs. ✅ Performance & Security First – SEO-friendly, fast, and secure websites. ✅ Seamless Communication – Clear and responsive throughout the project. ✅ Long-Term Support – I don’t just build websites—I keep them running smoothly. 🚀 Let’s Get Your Website Running at Its Best! 🚀 📩 Click "Invite" or "Message" now—let’s discuss your project!

Are you looking to build a high-performance SaaS platform, automate a complex supply chain, or integrate secure, production-ready AI into your business workflow? Many developers can write code, but very few understand how to seamlessly blend cutting-edge AI/ML systems with scalable, enterprise-grade architecture while ensuring strict data security (HIPAA, PCI-DSS). I am a Full-Stack Developer and AI/ML Engineer with extensive experience architecting end-to-end solutions for SaaS, Supply Chain, Healthcare (HIS/HMS), and custom ERP systems. Whether you need to build an MVP from scratch or scale an existing enterprise platform, I deliver clean, maintainable code and robust infrastructure. 🚀 Core Expertise & How I Can Help You: AI/ML & GenAI Integration: Building intelligent RAG systems, custom chatbots, and LLM-powered workflows using OpenAI, Anthropic, LangChain, and Vector Databases (Pinecone, Qdrant). Robust Backend & Architecture: Designing secure, high-throughput microservices and APIs using Node.js (NestJS), Python (FastAPI/Django), and PHP, backed by PostgreSQL, MongoDB, or Redis. Modern, Responsive Frontends: Crafting seamless web and mobile interfaces using React, Next.js, Angular, Vue.js, and React Native. Cloud, DevOps & Compliance: Deploying production-ready applications on AWS/GCP/Docker with CI/CD pipelines, keeping security and regulatory standards (HIPAA, GDPR) at the forefront. 🛠️ Technical Snapshot: Frontend: React, Next.js, Angular, Vue.js, React Native, Tailwind CSS Backend: Node.js (NestJS/Express), Python (FastAPI/Django), PHP, Java AI/ML: LLMs, LangChain, Vector DBs, Prompt Engineering, RAG Systems Cloud & Databases: AWS, GCP, Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, Redis Let’s build something scalable. Click the "Invite to Job" or "Hire" button on the top right, and let’s discuss how we can bring your project to life.

🏆 Microsoft's Most Valuable Professional Award - 3rd time in a row!!! ⭐⭐ 🏆Guinness Record holder (Microsoft App Fest) 🏆Consistently ranked as top 0.01% developers in Stack Overflow ⭐ 350+ Successful Projects Worldwide 🏅 Excellent Client Review / Portfolio 🏅 15+ Years of Experience 🏅 Worked with 150+ Companies Worldwide ⭐Certified Devops & AWS Developer. ✅ Devops Architect / Consultant ----------------------------------------------------------------------------------------------------- Greetings, I am Sadhik from Manin Software I would like to introduce about myself and my team. We are a team of Devops Experts, Mentor (Careers, Personal, Full Stack Web Development), Open Source Contributor & Specialist in Devops, AWS, Enterprise Web Application Development with specialisation in Front End Engineering, User Experience and Web App Development. 👉 Cloud : AWS, GCP, Azure 👉 Operating systems : CentOS, RedHat, Ubuntu, Debian, CloudLinux. 👉 Automated deployment : Terraform, Cloud Formation Template, Ansible, Bash, 👉 CI/CD implementation : Jenkins, Go CD 👉 Monitoring and logging: Prometheus, Zabbix, Grafana, ELK/EFK, Cloudwatch 👉 Dockerization and orchestration: Kubernetes, Docker, Docker Swarm 👉 IaC implementation : Terraform, CloudFormation 👉 Microservices infrastructure design, development, and implementation: Docker, Kubernetes 👉 Configuration management: Ansible, chef 👉 Database management : MySQL, MariaDB, MongoDB, PostgreSQL, RDS, 👉 Mail servers : Exim, Postfix, Qmail, SES 👉 Web services : Apache, Nginx, Litespeed 👉 Virtualization : Xen, KVM, VmWare ESXi, OpenVZ 👉 Hosting panels : cPanel/WHM/Plesk/Webmin/VirtualMmin/VestaCP/CWP/SolusVM/Virtualizor In addition, my team comprises of expert professionals belonging to different domains and platforms. Therefore, we are capable of converting any type of ideas/dreams under any domain into a quality product with a challenging low cost.