SIAPP MQTT Bridge Development

@AwaisChaudhry

Hello, I understand you need a production-ready SIAPP container for the SICAM A8000 that acts as an MQTT client. I will build a compact C/C++ service on embedded Linux, package it as a SIAPP image, and verify it on real demo hardware. The app will read the A8000's configured digital inputs, analog inputs, and status signals, publish those values to an MQTT broker, and subscribe to topics carrying status updates and control commands to write back to the matching SICAM signals. It will include clean logging, robust reconnect logic, and graceful handling of network interruptions to cope with substation conditions. Deliverables include the compiled SIAPP image with all dependencies, source code and build scripts (Dockerfile), a configuration template mapping SICAM signal IDs to MQTT topics, an integration test report showing successful publish/subscribe cycles, and a short deployment guide. I will provide a repeatable build process and clear configuration patterns to speed up onboarding. What are the exact MQTT broker details (address, port, authentication, TLS) and required security levels for the deployment?\n\nWhich SICAM signal IDs and topics should be mapped first for the initial integration test?\n\nWhat QoS and retention policies are expected for publish and subscribe topics?\n\nWhat logging, monitoring, and log rotation requirements should I align with in production?\n\nWhat are the acceptance criteria and test scenarios (failover, reconnection, data integrity) for the

@Microlent

Hello! This is exactly the kind of industrial MQTT gateway I enjoy building real-time, resilient, and designed for deployment in operational substations. I’ve built C/C++ embedded Linux services that bridge field I/O to MQTT brokers with reconnect logic, clean logging, and hardened network handling. I’m comfortable working with SIAPP containers, the Siemens SDK, and signal-to-topic mapping so SICAM values can flow reliably in both directions. What I’ll deliver: • SIAPP MQTT client reading DI, AI, and status signals • Bidirectional sync: publish to MQTT and write subscribed payloads back to SICAM • Reconnect & fault-tolerant logic for unstable networks • Configurable signal ↔ topic mapping template • Dockerfile, build scripts, and clean C/C++ source • Integration test report on A8000 hardware • Short deployment & handoff guide I focus on production-grade reliability, not demo code. Let’s open the chat I’d like to review the signal list and confirm the MQTT schema so we can build this correctly from day one. Best regards, Jasmin

@Mahihassi

As an Electrical Engineer specialized in Firmware Development and IoT product engineering, with a Master's in Embedded Systems, I assure you that I have the perfect skill set and experience to bring your SIAPP MQTT Bridge project to life. I’ve worked extensively with microcontrollers such as STM32, ESP32, TI Tiva, C2000, and more - all of which align with the Siemens SICAM A8000 platform you're using. In addition to my embedded systems expertise, I have a deep understanding of MQTT and its implementation in industrial environments. Hardened MQTT deployments are familiar territory for me. So, reconnect logic, clean logging, and handling network interruptions gracefully are second nature. My knowledge of industrial protocols like SICAM will ensure seamless mapping of signal IDs to MQTT topics in the configuration template. Completing your project means more than just delivering the compiled SIAPP image with all dependencies and comprehensive source code; it means giving you a polished product that has been positively verified on actual demo hardware.

@markoa7

As an experienced firmware developer with a strong background in embedded systems, I believe I can provide exceptional value to your project. Over the years, I have designed and developed applications for various MCUs including STM32, NXP, and TI, alongside proficiency in networks such as Wi-Fi and BLE. Notably, I have worked extensively with MQTT and its secure deployment, which makes me comfortable with the task of creating an MQTT bridge on Siemens SICAM A8000 platform. My skills extend beyond the realm of firmware development. Having worked on network security projects, I am adept at creating robust solutions that prioritize data integrity and graceful handling of network interruptions - essential factors for a project that will be deployed in an operational substation environment. In addition to firmware and network expertise, my proficiency in Linux-based development would be instrumental as it is required for building and packaging the SIAPP container. My deliverables for this project will not only include a compiled SIAPP image and source code but also a comprehensive configuration template mapping SICAM signal IDs to MQTT topics. Furthermore, my familiarity with industrial protocols like Modbus RTU and my prior experience with IoT device development will ensure quicker execution while working

@nikhilgarg96

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Nikhil

@hayteekeys

KINDLY READ THROUGH MY PROPOSAL THIS IS WHAT I WILL DO - Deliver hardened C++ SIAPP app (paho-mqtt, libsiapp) on A8000 Linux: auto-reconnect MQTT client, read DI/AI/status via SDK APIs, publish JSON payloads every 1–5 s - Handle inbound subs to direct SICAM writes with ACKs, full logging (syslog + MQTT debug), graceful offline buffering - Package: Dockerfile + build script for cross-compile (ARM), config YAML template (signal ID to topic/qos/retain), full SIAPP image - Test on your hardware: pub/sub cycles logged, 48 h stability report + deploy guide (5 pages) RELEVANT PROJECTS EXPERIENCE - 2025: SIAPP MQTT gateway for SICAM RTUs in 8 substations – zero downtime over 6 months - 2024: Hardened MQTT client on embedded Linux for IEC 61850/SCADA, deployed at grid operator QUESTIONS (to launch fast & flawless) - Broker details (URL, auth: TLS certs or username/pass)? - Signal list format (e.g., CSV with IDs/types)? - QoS prefs for pubs/subs (0/1/2)? SICAM vet here, I’ll have your SIAPP running bullet-proof on the test rig in 5-7 days.

@GameOfWords

SIAPP MQTT Bridge Development I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.

@maximg10

⭐Hi, I’m ready to assist you right away!⭐ I believe I’d be a great fit for your project since I have extensive experience in developing applications on embedded Linux and packaging them as SIAPP containers. My proficiency in digital signal processing and industrial protocols will ensure efficient communication between the SIAPP container and the MQTT broker. I have a solid background in software development, specifically in C/C++, which will enable me to create clean logging, reconnect logic, and handle network interruptions gracefully. This project's focus on building a SIAPP container for the Siemens SICAM A8000 platform aligns perfectly with my expertise. Moreover, I understand the critical need for reliable communication in operational substation environments, and I am well-equipped to deliver a production-ready solution that meets your requirements. If you have any questions, would like to discuss the project in more detail, or would like to know how I can help, we can schedule a meeting. Thank you. Maxim

@hireageek

Hi there, I’m excited about the opportunity to develop the SIAPP MQTT Bridge for the Siemens SICAM A8000 platform. With my extensive experience in embedded Linux and MQTT deployments, I am confident in delivering a robust solution that meets your production-ready requirements. I have successful projects under my belt involving industrial protocols, so I understand the intricacies of working in operational environments. My approach will include thorough development and testing on the demo hardware you provide. I will ensure the application has clean logging, reliable reconnect logic, and a smooth handling of network interruptions, making it well-suited for substation deployment. I'll deliver a complete package that includes the compiled SIAPP image, source code, configuration templates, and a thorough integration test report. Let’s connect to discuss the specifics and finalize requirements! What specific MQTT broker do you plan to use for this project, and are there any protocol nuances we should consider?

@KarthikTechCon

Hi, I’m Karthik, a senior embedded & industrial systems engineer with 10+ years of experience building production-grade Linux containers, MQTT integrations, and OT/industrial gateway software. I can deliver a robust SIAPP container for the Siemens SICAM A8000 that safely bridges SICAM signals with MQTT in operational environments like substations. How I’ll approach this: • Build a C/C++ MQTT client on embedded Linux using the SIAPP SDK • Read configured digital, analog, and status signals from the A8000 • Publish signal values to mapped MQTT topics • Subscribe to control/status topics and write payloads back to SICAM signals • Implement clean logging, reconnect logic, buffering, and graceful network recovery • Package everything as a production-ready SIAPP and validate on real A8000 hardware Deliverables • Compiled SIAPP image with dependencies • Full source code + Dockerfile / build scripts • Configurable signal-to-topic mapping template • Integration test report proving publish/subscribe cycles • Short, clear deployment guide I’ve worked with industrial protocols, hardened MQTT deployments, and edge systems where stability and predictability matter more than shortcuts. Once access to the A8000 and signal list is provided, I can move quickly and methodically. Regards, Karthik Embedded Linux & Industrial IoT Engineer 10+ Years Experience

@draganm59

Hello Intars K., I am excited to submit my proposal for the SIAPP MQTT Bridge Development project. Your need to develop a production-ready SIAPP container for the Siemens SICAM A8000 platform caught my attention, as it perfectly aligns with my expertise in embedded systems and network security. I understand the critical nature of your project, where the container must function as an MQTT client to seamlessly connect with a broker, handle digital and analog inputs, and manage status signals. Ensuring reliable publish/subscribe cycles and robustness against network interruptions is essential for operational substation environments. My experience with embedded Linux and containerization, alongside a strong foundation in MQTT and industrial protocols, equips me well for this challenge. To address the project requirements, I plan to leverage the Siemens SIAPP SDK to build the application, ensuring clean logging and a resilient reconnect strategy. The compiled SIAPP image will be accompanied by source code, build scripts, and a comprehensive integration test report. Furthermore, I will provide a configuration template to map SICAM signal IDs to MQTT topics, ensuring seamless communication. Having worked on similar projects, I am confident in delivering a solution that meets your needs efficiently. I look forward to the opportunity to collaborate and contribute to the success of your project. Best regards, Dragan M.

@abhisaini0188

Hello, Thank you so much for posting this opportunity. It sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your team. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini

@petrob2

Hi I've read your requirements and I've handled similar projects before. With my experience and skill, I can complete your project perfectly. Please contact me and discuss details via chat. Thx Petro.

@cesur135

With a deep understanding of industrial automation, specifically with Siemens technologies, I am confident that I would be the perfect fit for this project. Having worked extensively with SIEMENS TIA Portal, Simatic Manager, and WinCC SCADA, not to mention my propensity for writing in C/C++, I have honed the necessary skills required for delivering this project at your desired standard. Additionally, my expertise isn't confined to just Siemens systems. As someone who has designed ventilation systems based on an array of factors, I'm well-versed in ABB & Siemens drivers, MQTT protocol and have a comprehensive knowledge of the Linux operating system. Moreover, I’m adept at network security and application development which is crucial for deploying an MQTT bridge in a live substation environment. My experiences also extend to working with similar industrial protocols as in your project which would significantly streamline the development process. Having delivered projects while ensuring robustness and performance irrespective of environmental interruptions makes me competent at gratifying your clean logging and easy reconnect needs. Here's a deal: you provide remote access to SICAM A8000 and I'll deliver a fully compiled SIAPP image with all dependencies, accompanied by the source code (C/C++), build scripts (Dockerfile), configuration template along with that much needed short deployment guide.

@oleksandrf3

I NEVER USE AI FOR BIDDING! You need a production SIAPP container for SICAM A8000 that acts as an MQTT client with robust logic and full integration. I have direct experience with Siemens SICAM, embedded Linux, MQTT, and production-ready containerized apps. Looking forward to discussing more details. Stacks: Embedded Linux: Yocto, systemd, shell scripting Languages: C, C++ Messaging: MQTT (Mosquitto, HiveMQ, TLS), reconnect logic Industrial: SICAM A8000, IEC 60870-5, signal mapping Containerization: SIAPP SDK, Docker Logging: syslog, structured logging, logrotate Testing: remote hardware validation, test automation

@shawanay

Hey From your brief, this is about creating a SIAPP container that reliably connects your Siemens SICAM A8000 signals to an MQTT broker, handling both data publishing and command subscriptions without interruption. Here’s the offer. 1) Set up the development environment with the SIAPP SDK 2) Implement MQTT client logic for publishing and subscribing to signals 3) Map SICAM signal IDs to MQTT topics using a configurable template 4) Add logging, error handling, and network reconnect logic 5) Package the container, run integration tests on the A8000 and provide source code with deployment documentation If this aligns, we can start with remote access to your test device and signal list to build and validate a production-ready SIAPP container. Lets chat

@vudinhgiang

Hello, I’m Giang, and this project seems like a perfect fit for my skills in embedded systems and MQTT integration. I have extensive experience with industrial IoT, containerization, and embedded Linux, and I'm confident I can deliver a fully production-ready SIAPP container that meets all your requirements. I will handle the development, integration, and testing of the system with your test device. The final deliverables will include the compiled SIAPP image, source code, build scripts, and a deployment guide. This is not an automated bid—I’m genuinely excited to work with you and am committed to ensuring the project is done right. Let’s get started! Looking forward to hearing from you,

@kirills31

Hey there. Do you already have the exact SICAM signal list with IDs and types (DI, AI, status), and should the mapping be one-to-one to MQTT topics or grouped into a single JSON payload per scan cycle? For control commands, do you need write acknowledgements back to MQTT (ack or error with reason), and what QoS level and retain policy should we use for publish and subscribe? I’ve built MQTT bridges for embedded Linux in industrial environments where reliability comes from disciplined reconnect logic, bounded retries, and predictable mapping between field signals and topics. I can implement this as a SIAPP container using the Siemens siapp-sdk, with a clean C or C++ service that reads the configured A8000 signals on a fixed interval, publishes to MQTT with timestamps and quality flags, and subscribes to command topics to write values back into the matching SICAM signals safely. I’ll include structured logging, offline queue behavior if required, and graceful handling of network interruptions so the app recovers without manual intervention. Packaging will be delivered as a compiled SIAPP image with Docker build scripts, plus a configuration template that maps SICAM IDs to topics. With your remote access to the demo A8000, I’ll run integration tests end-to-end against a broker and provide a short report showing publish and subscribe cycles working as expected. Hope to discuss more on chat. Best Kirill

@anilptk

Hello there, I am excited about the opportunity to develop a production-ready SIAPP container for the Siemens SICAM A8000 platform that functions as an MQTT client. The container will facilitate the seamless exchange of data between the A8000 system and MQTT broker, ensuring efficient communication of digital and analog inputs as well as status signals. I am well-versed in building applications on embedded Linux, packaging them as SIAPPs, and conducting thorough verification on real demo hardware to ensure seamless operation in substation environments. My expertise in clean logging, reconnect logic, and network interruption handling will guarantee a reliable solution for your project. I look forward to collaborating with you on this endeavor. Regards, anilptk