Inalámbrico Jobs

I need an external captive portal that talks seamlessly to my Ubiquiti UniFi controller. The heart of the job is integrating Paystack for one-time payments so that, the moment a customer buys a package, the system automatically creates a username and password, applies the right speed limits, and logs the transaction. Login flow • Package-based login is the priority: customers choose between Unlimited or data-capped Bundles and pay through Paystack. • Voucher codes still have to work for promotions. • A phone-number option must grant a free 30-minute trial, with credentials delivered instantly via the bulk-SMS gateway. Operational rules • When a bundle is exhausted or a plan expires, the user should land straight back on the portal or their account page. &...

I am dealing with a coordinated campaign that has breached my phone, several email accounts, and even my car’s onboard system. The intrusions appear to be carried out by multiple individuals and have progressed well beyond anything I can contain by simply changing passwords, which is the only measure I have tried so far. I need a seasoned cybersecurity specialist who can: • Conduct a thorough forensic assessment of my mobile device, email environments, and the car’s infotainment/OBD network to confirm attack vectors and persistence mechanisms. • Lock down each surface—mobile OS hardening, secure email re-provisioning with robust MFA, and defensive re-flashing or segmentation of the vehicle’s CAN bus—while preserving admissible evidence. &bull...

I need a complete design for a flexible, wearable microstrip patch antenna that operates reliably across the sub-6 GHz spectrum for communication devices. My chief concern is bandwidth: the final geometry, substrate choice, and feed configuration must maximise usable bandwidth while keeping return loss below –10 dB over the targeted range. Here is what I expect: • A simulation-validated design file ( CST ) showing S-parameters, radiation pattern, and realised gain. • Clear documentation of substrate stack-up and bending radius limits so the antenna maintains performance when worn. • A concise fabrication guide and, if possible, suggested vendors or processes for producing flexible prototypes. Please attach a detailed project proposal that explains your meth...

I’m looking for an experienced freelance on-site network engineer located in Indonesia who can jump in immediately. The first priority is to assess and stabilise an existing business network; additional optimisation or expansion tasks will follow once the core issues are resolved. To move quickly, brief me on your hands-on experience with routers, switches, firewalls, or wireless gear you’ve configured in similar situations and the results you achieved. The role starts as soon as we agree, so please respond today if you’re ready to begin right away.

I’m rolling out a fully integrated security and networking solution for my business and the first milestone is a professional CCTV system. The core of the job is the end-to-end setup—from design through deployment—of cameras, storage, and networking that work together seamlessly. Key capabilities I must have are remote access and monitoring from web and mobile, crystal-clear high-definition recording, and smart motion-detection alerts. Everything needs to sit on a robust network backbone that you’ll plan and configure so the cameras, NVR, and existing infrastructure talk to each other securely. Beyond the cameras themselves, I want the groundwork laid for a broader automation roadmap: once the surveillance environment is live, I’ll be moving on to networ...

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I’m ready to build a fresh network in Cisco Packet Tracer and need an expert hand to get the topology right. The job centres on designing the entire layout from scratch; routers and switches will form the backbone—no wireless gear this round. I haven’t locked down whether the final architecture should remain a simple LAN, scale into a WAN, or blend the two, so I’m counting on your insight to recommend the cleanest, most scalable approach once you review my requirements. Here’s what I’ll look for: • A working .pkt file with every device clearly labelled, configured, and cabled • Routing (static or dynamic), VLANs, basic security, and end-to-end connectivity demonstrated in the simulation • A concise document or set of notes that explai...

I need an Aspen simulation that focuses on full process design of a heat exchanger network. The goal is to build an accurate model and deliver a detailed thermal performance evaluation: temperatures, duties, pinch points, approach temperatures, and any bottlenecks that appear once the network is integrated into the overall process flow. You may work in Aspen Plus or HYSYS for the main flowsheet and use Exchanger Design & Rating (EDR) or Energy Analyzer for the network itself—whichever produces the most reliable convergence and reporting. Please document every assumption (fluid properties, fouling factors, pressure drops) directly in the model notes so I can reproduce your results. Acceptance criteria • Complete Aspen file(s) with all units converged • Thermal perfor...

We are looking for an experienced PLC Programmer and Hardware Integrator with strong expertise in Modbus communication to support an automation project. Scope of Work: * Develop and implement PLC programs * Integrate PLC with field hardware (sensors, actuators, controllers) * Configure and troubleshoot Modbus (RTU/TCP) communication * Ensure reliable data exchange between devices * Support system testing and debugging Requirements: * Proven hands-on experience in PLC programming * Strong experience in hardware integration and wiring interfaces * Solid understanding of Modbus communication (RTU & TCP/IP) * Experience with industrial automation systems * Ability to troubleshoot communication and integration issues Preferred: * Experience with multiple PLC platforms (Siemens / Allen...