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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.

Senior embedded firmware engineer with 5+ years shipping production networking devices — 10+ product lines, 2000+ units in the field. I take routers, switches, and access points from prototype to production, and I'm now weaving edge AI into the firmware, mesh, and connectivity stacks I've built for years. What I do best: • OpenWRT firmware development (x86, MediaTek, Qualcomm, Broadcom) • 5G/4G bonding routers — inventor on a filed patent for MPTCP scheduling (Indian Patent App. No. 202541092429) • Self-healing mesh networks (BATMAN-adv, 802.11s) with fast roaming • Cloud-managed captive portals (CoovaChilli), Multi-VLAN isolation for hospitality & POS • MQTT telemetry, OTA/FOTA upgrades, remote device management • Edge AI & agentic workflows — AI-enabled domain filtering, custom automation agents Recent wins: • Led the technical turnaround of a US client's stalled product line (CleanRouter, Arizona) as a remote contractor — resolved critical legacy bugs, re-architected mesh communication logic, and took products to shipment-ready • Architected a 5G cellular bonding router with integrated NVR for professional livestreaming • Built enterprise cloud-controlled switches with per-VLAN captive portals and Chromecast isolation for hotels Remote-first, working worldwide. If you need firmware that survives real-world deployments — or AI woven into your network stack — let's talk.

More than 18 years of professional experience with the Industry-leading Tech giants in the following areas, QAD EE 2019, EE 2013, Adaptive UX OpenEdge Progress 4GL QAD Report Resource QAD Report Scheduling QAD Custom Browse QAD Browse Export from Batch (Scheduler) DELL Boomi Pro2 Replication Unix Shell Script C# with ASP.Net MFG/Pro eb2

Hi, I'm Arun — a highly efficient Full Stack Developer with strong expertise in both frontend and backend development. I have successfully completed over 5000 hours on Upwork, demonstrating my commitment, reliability, and proven ability to deliver high-quality solutions across diverse projects. I am an expert in major languages Python, C++, C# Working knowledge in Qt C++ Worked with ZW3D API in C++ I have knowledge in following Python web frameworks Django | Flask Worked with simulation software. I have good knowledge in following technologies also HTML | JavaScript | jQuery | AJAX | JSON |FFMPEG | WPF | Xamerin I have project experience in Raspberry Pi, Controlling GPIO pins with QT C++

I help telecom companies build, modernize, integrate, deploy, and support high-performance telecom software and cloud-native platforms. I have strong hands-on expertise in 𝐃𝐢𝐚𝐦𝐞𝐭𝐞𝐫 𝐏𝐫𝐨𝐭𝐨𝐜𝐨𝐥, 𝐓𝐞𝐥𝐞𝐜𝐨𝐦 𝐂𝐨𝐫𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬, 𝐉𝐚𝐯𝐚, 𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭, 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬, 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬, 𝐃𝐨𝐜𝐤𝐞𝐫, 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬, 𝐆𝐫𝐚𝐟𝐚𝐧𝐚, 𝐚𝐧𝐝 𝐏𝐫𝐨𝐦𝐞𝐭𝐡𝐞𝐮𝐬. My main focus is working with telecom product companies, network technology companies, service providers, and engineering teams that need experienced telecom software development and cloud engineering support. 𝐌𝐲 𝐓𝐞𝐥𝐞𝐜𝐨𝐦 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 • Diameter Protocol Development & Integration • Diameter Signaling & Routing • Telecom Core Network Applications • LTE / 4G Core • IMS / Telecom Applications • 5G & Cloud-Native Telecom Systems • Telecom Microservices • Telecom Application Modernization • Telecom Backend Development • Telecom API & System Integration 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 • Java • Spring Boot • Microservices Architecture • REST APIs • Distributed Systems • High-performance backend applications • Application modernization 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 • Kubernetes • Docker • CI/CD • Cloud deployment • Containerization • Infrastructure automation • Production deployment & support • Scalability and reliability 𝐌𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠 & 𝐎𝐛𝐬𝐞𝐫𝐯𝐚𝐛𝐢𝐥𝐢𝐭𝐲 • Grafana • Prometheus • Application monitoring • Infrastructure monitoring • Metrics & alerting • Production troubleshooting 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐖𝐢𝐭𝐡 ✓ Develop new telecom applications and services ✓ Develop and integrate Diameter-based solutions ✓ Modernize legacy telecom applications ✓ Convert monolithic applications into microservices ✓ Containerize telecom applications using Docker ✓ Deploy telecom workloads on Kubernetes ✓ Build CI/CD pipelines ✓ Improve application performance and scalability ✓ Set up monitoring and observability ✓ Troubleshoot production issues ✓ Provide ongoing telecom software & DevOps support ✓ Work as an extension of your existing telecom engineering team 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? I understand both 𝐭𝐞𝐥𝐞𝐜𝐨𝐦 𝐝𝐨𝐦𝐚𝐢𝐧 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 𝐚𝐧𝐝 𝐦𝐨𝐝𝐞𝐫𝐧 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞/𝐜𝐥𝐨𝐮𝐝 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠. Instead of providing only generic Java or DevOps development, I can work across the complete technical environment from 𝐃𝐢𝐚𝐦𝐞𝐭𝐞𝐫 𝐚𝐧𝐝 𝐭𝐞𝐥𝐞𝐜𝐨𝐦 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐭𝐨 𝐉𝐚𝐯𝐚/𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭, 𝐦𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬, 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬, 𝐃𝐞𝐯𝐎𝐩𝐬 𝐚𝐧𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐦𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠. If you are building, modernizing, migrating, or supporting a telecom platform, I would be happy to discuss your requirements. 𝐋𝐞𝐭'𝐬 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐭𝐞𝐥𝐞𝐜𝐨𝐦 𝐩𝐫𝐨𝐣𝐞𝐜𝐭, 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞, 𝐨𝐫 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭.

👋 Hi, I'm Hepshiba Beula, a Networking Engineer with 4+ years of experience specializing in Optical Networks (ONTs & OLTs), VoIP, PBX, Asterisk, Wi-Fi module development, and Network Administration. I have hands-on expertise in embedded systems, networking protocols, and firmware development for high-performance telecommunications solutions. Key Expertise: ✅ ONTs Development & Support – Data flow monitoring, VoIP support, OMCI stack enhancements ✅ Wi-Fi Module Engineering – Performance optimization, debugging, and system enhancements ✅ VoIP Network Enhancements – SIP signaling, VoIP debugging (Asterisk, Wireshark), FXS device integration, FreePBX deployment ✅ Network Administration – VLANs, switch-based configurations, traffic monitoring (Ixia, Spirent) ✅ Embedded Software Development – C programming, Data Structures, Linux-based development ✅ Packet Analysis & Debugging – Deep packet inspection, protocol debugging (Wireshark, Asterisk) ✅ OLT Support – Ensuring seamless integration and maintenance of Optical Line Terminals Professional Experience Highlights: 🔹 Optical Networks (ONT Development & OLT Support) Developed OMCI stack interfaces for ONTs, enabling seamless network provisioning. Worked on PON activation, MIB Upload, and software upgrades for Adtran ONTs. Designed and implemented CFM Protocol on Cortina-based targets. Monitored data flow and ensured VoIP support for ONTs in live network environments. 🔹 Wi-Fi Module Enhancement & Debugging Enhanced and maintained the BGW320 Wi-Fi module for AT&T residential gateways. Debugged and optimized Wi-Fi performance, including network stability and traffic flow. 🔹 VoIP & Network Optimization Implemented VoIP handling in FXS devices (Cortina 6xx, BRCM 8xx, 62x). Debugged VoIP packets using Asterisk, Wireshark, ensuring high call quality. Managed SIP signaling and VoIP enhancements for network efficiency. Has experience in deploying FreePBx on cloud server and configuration of trunk and SIP routing and extension 🔹 Network Configuration & Traffic Analysis Monitored and optimized network traffic using Ixia, Spirent for data packet analysis. Configured VLANs, switches, and network routing for optimal data flow. Tech Stack & Tools: 💻 Languages: C, Python, Shell Scripting 🛠 Tools: Git, JIRA, Bitbucket, Confluence, Perforce, Wireshark, Asterisk, IXIA, Spirent 📡 Platforms: Linux/Unix, Residential Gateways, Optical Line Terminals (OLTs), Optical Network Terminals (ONTs) I am open to networking, IT infrastructure, and embedded systems roles, bringing strong problem-solving skills and expertise in network administration, VoIP, and optical networking solutions. Let’s connect and collaborate! 🚀