Hire the Best QLess Specialists

I build and repair systems where one business event must produce one reliable outcome. My recent 5-star Upwork delivery was a real-time Python AIS geofence alert system with event/state logic, duplicate prevention, reconnection recovery, edge-case testing, clean code, and documentation. I also completed a paid independent Python audit of a scientific research engine, tracing model logic, failure modes, and reproducible validation. I work on the failure paths between tools: an email or PDF becoming a quote, a form becoming one CRM record, an API event becoming one customer action, or conflicting records becoming a verified dataset. The common risks are duplicate execution, partial failure, malformed inputs, and state that stops agreeing. Selected proof: • KitchenPermit: Next.js, Supabase, Cloudflare, API-backed reports, PDFs, saved history, and customer follow-up. • Google Sheets procurement system: Apps Script workflows, approval states, exception handling, dashboards, and audit history. • n8n + HubSpot: three identical submissions produced one Contact and one Deal across 12 targeted tests. • Source-linked research: 10,000+ reviewed business records and 6,230+ unique external email routes. • Five-star QA work: deeper acceptance testing, reproducible evidence, and clear issue reporting. I take on bounded API/webhook repairs, CRM and workflow automation, SaaS features, spreadsheet operational systems, browser/data automation, document-to-decision flows, source-verifiable research, and defined QA. Start with one broken workflow, representative input, or defined feature. I’ll return the implemented result, edge-case verification, and a clear handoff. I work async-first with written requirements recaps and concise progress updates. Core stack: Python, Java, Spring Boot, React, Next.js, TypeScript, Supabase, SQL, HubSpot, n8n, GoHighLevel, Google Sheets, Apps Script, REST APIs, and browser automation.

✅ 15+ Years Building Web & SaaS Systems ✅ Platforms Serving 15,000+ Students & 12,000+ Gym Members ✅ Trusted by Long-Term & Recurring B2B Clients Hi, I’m Janlord — a Senior Full-Stack SaaS Developer focused on building scalable web applications and business systems that support real operational volume. I design and develop production-grade platforms used daily by schools, gyms, and growing businesses. My work includes systems managing 15,000+ students across multiple institutions and gym platforms serving over 12,000 members. These are high-usage systems handling real users, payments, and operational workflows — built for reliability and scale. I specialize in architecting and developing B2B SaaS platforms, including school management systems, gym applications, POS systems, booking platforms, CRMs, subscription platforms, and custom operational dashboards. My focus is on clean architecture, performance, and long-term maintainability so your platform scales without becoming unstable or difficult to manage. Core Expertise • Custom SaaS & Web Application Development (Laravel + Vue/Quasar) • B2B Business Systems (Schools, Gyms, POS, Booking, CRM) • WordPress Development (Custom Themes, Plugins, Optimization) • Subscription & Membership Platforms • Admin Dashboards & Reporting Systems • API Integration & Automation • Cross-Browser & Mobile-Responsive Web Applications • System Refactoring, Scaling & Maintenance • Mobile & Desktop Applications (Quasar – Capacitor & Electron) Technical Stack Backend: Laravel, PHP, MySQL Frontend: Vue.js, Quasar Framework, JavaScript CMS: WordPress (Custom Themes & Plugins) Infrastructure: AWS, DigitalOcean, Hostinger, VPS Environments Version Control: Git Mobile: Quasar Capacitor Desktop: Quasar Electron How I Work I approach every project as a long-term system — not a short-term feature build. My process: Discovery → Architecture Planning → Development → Testing → Optimization → Ongoing Support I prioritize stability, scalability, and reducing technical debt so your platform remains reliable as your business grows. Why Clients Work With Me • I take full ownership of projects • I understand business operations, not just code • I communicate clearly and consistently • I build systems designed for long-term growth Many of my clients continue working with me on contractual and recurring engagements. Whether you’re launching a SaaS product, modernizing internal systems, or scaling an existing platform, I bring both technical depth and business awareness to every engagement. If you’re looking for a dependable technical partner — not just a developer — I’d be glad to help. Let’s build something that lasts.

I help businesses, startups and founders design and build complete software systems, from embedded devices and IoT solutions to backend services, web platforms, desktop applications and mobile apps. Every project starts with understanding your business goals. Based on your requirements, I help select the right architecture and technology stack to build solutions that are reliable, maintainable and ready to grow. I can help with: Software architecture and technical consulting Embedded firmware and IoT systems Backend, web, desktop and mobile applications Hardware and software integration Legacy system modernization and technology migration Monitoring, diagnostics and long-term technical support Documentation and knowledge transfer for your team If you're looking for a software engineer who can take ownership of a project from architecture and implementation to deployment and ongoing support, I'd be happy to discuss your ideas.

Are you looking for a professional software developer who can solve unsolved tasks, is highly organized, and has deep knowledge and experience developing optimized and robust code? I'm an experienced and dedicated professional with over 16 years of experience in designing, developing, implementing, and supporting software solutions. My aim is to create fast, lightweight, and highly optimized solutions that perform well with minimal use of system resources. My favorite kind of work is solving unsolvable problems. My main skills are fast learning and ongoing professional development. Last two years I made mostly cross-platform desktop/mobile applications on the Qt framework using C++, QML, and CMake. Difficult unsolvable problems are my favorite job. And I am sure that my experience, knowledge, and enthusiasm will help to solve any of your problems.

I am an embedded systems specialist with over 8 years of experience in developing software, firmware, and hardware solutions. I’ve successfully delivered 100+ projects that integrate cutting-edge functionalities—from multi-threading and AI-on-edge to seamless wireless connectivity. ------------------------------ Core Competencies: ➡️ Microcontrollers -- Proficient with TI, STM32, ESP32, ESP8266, Atmega, and a wide range of Arduino boards. ➡️ Frameworks -- Expertise in bare-metal programming, FreeRTOS, STM32Cube, ESP-IDF, Arduino, and PlatformIO. ➡️ Linux -- Experience developing on x86, ARM, and Raspberry Pi systems. ➡️ Electronics -- Skilled in sensor integration, display management, and PCB design. ➡️ Wireless Protocols -- Deep knowledge of Bluetooth Low Energy (BLE), WiFi, Xbee, Zigbee, ESP-Now, LoRa, low-frequency radio, and mesh networking solutions. ➡️ Wired Protocols -- Familiar with SPI, I2C, RS232, RS485, UART, CAN-Bus, and more. ➡️ UI Frameworks -- Proficient in creating graphical interfaces using bare-metal techniques, LVGL, and Qt QML. ➡️ Platform integration -- Experience integrating embedded systems with cloud platforms and IoT solutions such as AWS IoT, Azure, and ThingsBoard, utilizing MQTT, REST, and other gateway protocols. ------------------------------ Project Highlights: ✅ Real-Time Multi-Threading -- Implemented robust solutions using FreeRTOS. ✅ AI-on-Edge -- Integrated AI functionalities into constrained embedded environments. ✅ Wireless Connectivity -- Delivered projects with WiFi, BLE, LTE, LoRa, Zigbee and others. ✅ Advanced Networking -- Developed mesh networking solutions implemented over a variety of protocols like ESP-Now, Radio, BLE, XBee, etc. ✅ Power Management -- Utilized deep-sleep modes, watchdog timers, and ULP cores for energy efficiency. ✅ User Interfaces -- Designed intuitive touch interfaces and captive portals, often paired with companion mobile apps. ✅ Device Management -- Executed comprehensive device management strategies, including OTA updates, fault recovery, and remote monitoring. ------------------------------ What I Offer: 💾 Firmware Design: With 8+ years of coding expertise, I provide rapid and reliable firmware development tailored to your hardware. ☁️ Cloud Setup: I can setup your IoT Platform backend including Amazon AWS, Azure, and even open-source solutions like Thingsboard. ⚡ Hardware Engineering: From schematics and circuit design to component selection and PCB layout, I cover the entire hardware development lifecycle. 📱 GUI Integration: Specializing in embedded products with graphical user interfaces, I leverage LVGL and Qt to create user-friendly, visually appealing designs. ------------------------------ I am passionate about exploring new technologies and continuously expanding my expertise. While I may not know every technology off the bat, I commit to learning what’s needed—without charging for my learning time. I’d be delighted to discuss your ideas and explore how we can bring them to life. Best Regards, Ravi Kharb

Hi, I'm Vishal. I build high-performance desktop applications and efficient system tools using Modern C++ and Qt. With over 3 years of experience—ranging from building custom package managers to aerospace control software. I specialize in complex applications where performance and reliability are non-negotiable. My Approach: I write code that is safe, fast, and easy to maintain. Whether it's optimizing a kernel module or designing a custom widget in QML, I focus on long-term stability. Technical Stack: - Languages: Modern C++ (17/20), Embedded C, QML, Python. - Embedded & Systems: Linux Kernel Modules (LKM), Device Drivers, Multi-threading, I2C/SPI/UART Protocols. - Frameworks & UI: Qt Quick (QML/C++ Integration), Boost, STL. - Tools & DevOps: CMake, Conan, Git, Linux Command Line, Github CI/CD. If you need a developer who understands the difference between a segfault and a failsafe, let's talk.