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We are looking for an experienced **IoT / GPS / Backend Developer** to complete an integration between our GPS fleet management system and **Targa Telematics / SEASPA Real Time**. ### Project scope Our system manages GPS data from vehicles operating at airports. We need to send real-time vehicle data to Targa Telematics according to their technical specifications. The integration requires: * **JSON data generation** * GPS tracking every **max. 10 seconds** * Events: **KEYON, KEYOFF, TRACKING** * **Geofencing**: send tracking data only when vehicles are inside the airport Air Side perimeter * **Kafka-to-Kafka integration** * Kafka Producer configuration * Secure connection using **certificates / CSR** * Error handling, reconnection and logging * Testing and end-to-end validation with Targa Telematics Targa Telematics will provide the technical specifications, JSON examples and Kafka configuration requirements. ### Additional tasks The developer will also assist with: * Vehicle/master data configuration * Vehicle activation/deactivation procedures * Technical documentation * Final testing and troubleshooting with Targa Telematics ### Required experience Strong practical experience with: * **Apache Kafka** * **JSON / backend integrations** * **GPS / telematics / IoT** * Real-time data processing * **Geofencing** * TLS certificates / CSR * Linux/server environments Experience with **fleet management or GPS integrations is a strong plus**. ### Deliverable A **fully working and tested production integration** between our GPS platform and Targa Telematics / SEASPA Real Time. Please include in your proposal: 1. Your experience with Kafka 2. Previous GPS/IoT integrations 3. Technologies/languages you normally use 4. Estimated time and budget We will provide the complete technical documentation and examples to the selected developer.
Project ID: 40729137
68 proposals
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Active 6 days ago
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68 freelancers are bidding on average €70 EUR for this job

Hello, Being no stranger to projects of this scale and complexity, I firmly believe I'm the #GPS/#IoT/#Backend developer you're searching for. My extensive 10+ years' experience with both server and linux environments, knack for real-time data processing, Java knowhow, and robust understanding of Apache Kafka have all equipped me well to meet your requirements skillfully. Having worked on numerous **GPS/IoT integrations**, I'm adept at handling the challenges presented in manipulating JSON data and guaranteeing data security through TLS certificates/CSR. A focal point in my career has been fleet management and GPS integrations -- a segment identified as a strong plus in your description. Such projects have not only honed my knowledge of backend development but also enabled me to cultivate comprehensive solutions by addressing concomitant factors such as geofencing. Besides, I specialize in **Python** - which has come to fruition in automation work, a valuable asset when it comes to supporting your vehicle/master data configuration. Your deliverables are at the heart of my commitment. I aim not merely to provide a fully functional system but one that is flawlessly tested and easily maintainable hence ensuring long-term satisfaction for my clients. My dedication to deadlines is unwavering; based on the given project scope, I estimate a reasonable time frame of three weeks alongside a budget of $2500-$3000. Let's combine our efforts Thanks!
€30 EUR in 1 day
8.6
8.6

Hello, I'm Denis, a full-stack developer with hands-on experience building real-time data integrations, including GPS and IoT systems that process streaming data at scale. I understand your needs: a reliable Kafka producer that reads vehicle GPS data from your fleet management system, applies geofencing logic to filter events within the airport perimeter, and pushes compliant JSON messages to Targa's topic—keeping bandwidth efficient and data clean. I've worked on similar systems where real-time location data flows between services with strict formatting and reliability requirements. I'm comfortable with Kafka producer setup, certificate-based authentication, and geofencing logic. Here's my approach: I'll review Targa's technical specs and JSON schema to understand the data contract. Then I'll configure the Kafka producer with TLS certificates and connection pooling. The core work involves building a transformation layer that takes your GPS events, applies geofencing filters, and publishes compliant JSON messages. I'll add robust error handling, reconnection logic, and structured logging for quick debugging. After local testing, we'll run end-to-end tests with Targa's staging environment before going live. One critical consideration: I'll implement idempotent producer settings and message ID tracking to prevent duplicate tracking events while maintaining order within partitions. I'm ready to start immediately. Let's discuss the details. Thanks, Denis.
€8 EUR in 1 day
6.2
6.2

Hi, I see you're looking to integrate your GPS fleet management system with Targa Telematics, focusing on real-time data transmission from airport vehicles. This will require precise adherence to Targa's technical specifications for seamless data flow. The key challenge here is ensuring the stable and accurate generation and transmission of JSON data in real-time, which is crucial for maintaining the integrity of vehicle tracking information. My approach would involve first thoroughly understanding Targa's data requirements and then prioritizing the stability of the data pipeline to handle the continuous data stream effectively. With extensive experience in PHP and backend software development, I have successfully completed similar integrations, ensuring robust and scalable data handling systems. Q1 – Could you specify the vehicle data points that need to be transmitted to Targa Telematics? Q2 – Are there any specific security protocols that need to be adhered to during the data transmission? Q3 – What is the expected data transmission frequency or latency for the real-time updates? Looking forward to hearing from you and exploring how we can achieve a seamless integration.
€10 EUR in 7 days
5.8
5.8

Hi, I can build the Targa Telematics integration with Kafka-to-Kafka GPS tracking, JSON events, geofencing, TLS certificates, and reliable error handling. I’ll also handle testing, vehicle configuration, and final validation. I’m available to start immediately. Let’s connect to discuss the technical details.
€10 EUR in 2 days
6.0
6.0

As a freelancer whose career has always revolved around building production-level infrastructure with cutting-edge technologies, I am confident in taking on your project and delivering the perfect solution. My past experience as an IoT/GPS/backend developer, utilizing Apache Kafka extensively, makes me well-suited for this task. I have developed robust and real-time data processing systems that involve secured communication with certificates and error handling features. My proficiency in JSON backend integrations and deep understanding of GPS, telematics, IoT and geofencing would ensure that the required data generation and tracking functionalities are diligently incorporated into your fleet management system. In addition, my familiarity with Kafka-to-Kafka integration and previous experience with GPS integration will drive efficient implementation of all your technical specifications.
€19 EUR in 7 days
6.3
6.3

I have 6+ years building IoT and GPS integrations. Strong Kafka expertise. Completed 4 fleet telematics integrations with real-time tracking. EXPERIENCE - Apache Kafka (producer/consumer, error handling, reconnection logic) - GPS/telematics systems and geofencing - Real-time data processing and JSON transformations - TLS certificates and secure connections - Linux server environments PREVIOUS WORK - Fleet management integration (Samsara API) - Real-time vehicle tracking system with geofencing - Kafka-based event streaming for logistics platform TECH STACK Java/Python, Apache Kafka, JSON, PostgreSQL, Linux DELIVERABLES - Kafka Producer for real-time vehicle data - JSON generation (KEYON, KEYOFF, TRACKING events) - Geofencing logic (airport Air Side perimeter) - TLS/certificate configuration - Error handling and reconnection - Complete testing with Targa Telematics - Technical documentation Timeline: 12-14 days Ready to start upon receiving Targa Telematics technical specs.
€10 EUR in 7 days
5.5
5.5

Hi, I can build the Kafka-to-Kafka telematics integration with real-time GPS processing, JSON generation, KEYON/KEYOFF/TRACKING events, Air Side geofencing, secure TLS certificate/CSR configuration, reconnection, error handling and structured logging. I’ll work from Targa’s technical specifications and JSON examples, validate the producer/consumer flow in a controlled environment, then support end-to-end testing and production troubleshooting. I normally work with backend services in Python, Node.js or Java depending on the existing platform and integration requirements. Questione 1: Can you provide Targa’s Kafka specifications, certificate requirements and sample JSON payloads for the initial technical review? Questione 2: What technology and Kafka environment currently powers your GPS platform, including broker version and deployment setup? Regards, Houssame.
€8 EUR in 1 day
5.2
5.2

Hello, I can build a Kafka-based integration with Targa Telematics that filters GPS data to only send airport-side tracking events, reducing unnecessary data transfer. I’ve helped a logistics client integrate Kafka with a telematics provider, where I optimized event filtering to cut API costs by 30% by only sending relevant geofence-triggered updates. I’d approach this by setting up a Kafka producer that processes raw GPS data, applies geofencing logic, and formats messages to Targa’s JSON spec. The system will use TLS certificates for secure transmission and include retry logic for failed deliveries. This setup will ensure only airport-side vehicle events reach Targa, improving data efficiency and reducing processing costs. Proper filtering will help avoid unnecessary data transfer, keeping your system lean while meeting Targa’s requirements. After delivery, I’ll document the integration steps and provide troubleshooting guidance for future updates. If this approach works for you, I’d be happy to discuss the Kafka setup details and your specific data requirements. Thanks, Lazar.
€8 EUR in 1 day
5.0
5.0

As a highly experienced Backend Developer with diverse qualifications in GPS, IoT, and technology leadership, I'm confident in my ability to successfully integrate your GPS fleet management system with Targa Telematics / SEASPA in real-time using Kafka. My significant experience working with Kafka and JSON provides me with the capability to proficiently manage the tracking, geofencing, event handling, meta configuration along with Kafka producer configuration. Furthermore, my understanding of TLS certificates and CSR will ensure a secure and robust connection while handling errors, reconnections, and logging. In addition to my impressive technical prowess, I have an unparalleled appetite for learning new technologies efficiently. This would come in handy as you've stated that Targa Telematics will provide any necessary technical information, JSON examples, and Kafka configuration requirements. I am fluent with Linux/server environments which makes me well-suited to optimizing the end-to-end validation and troubleshooting aspects of this project.
€8 EUR in 7 days
4.6
4.6

Hello there, I am an experienced IoT/GPS/Backend Developer with expertise in Apache Kafka, JSON integrations, and GPS telematics. I have worked on real-time data processing, geofencing, and TLS certificates in Linux environments. I can assist in integrating your GPS fleet management system with Targa Telematics, ensuring smooth data transfer and secure connections. My previous projects involved similar GPS/IoT integrations, and I typically work with technologies like Kafka, JSON, and Node.js. I look forward to discussing further details and collaborating on this project. Thanks, Manisha
€19 EUR in 1 day
4.4
4.4

Your fleet integration needs more than JSON forwarding: 10-second tracking, KEYON/KEYOFF/TRACKING events, geofencing, Kafka TLS, retries, and logs must stay correct when brokers or networks fail. I don’t have a direct Kafka, Targa, or GPS/IoT deployment to claim, so I won’t invent one. My real work includes B2B, e-commerce, marketplace, and API software, backed by 9+ years. I can review Targa payloads and broker requirements, then build a producer in Node.js or Python. The service will normalize vehicle events, apply geofence checks, enforce timestamps and 10-second limits, use certificate TLS, handle reconnects/backpressure, and log correlation IDs safely. I’ll add configuration validation, health checks, replay-safe tests, and a staging harness with sample payloads. Documentation will cover activation, environment variables, deployment, monitoring, and handover. I can work with Linux and your PHP system at the boundary; I won’t claim GPS work. Can you provide Kafka version, TLS/CSR requirements, sample JSON, geofence format, and staging access? My €20 bid is for a 10-day integration milestone; scope follows Targa review. I can start with the event and failure matrix.
€20 EUR in 10 days
4.3
4.3

Hello, I’m a Top Rated, 5-Star Full-Stack Developer with 10+ years of experience building backend systems, REST integrations, real-time data workflows, databases, and Linux-based applications. I understand you need a production-ready integration between your GPS fleet platform and Targa Telematics/SEASPA Real Time, including JSON generation, 10-second tracking, KEYON/KEYOFF/TRACKING events, airport geofencing, Kafka-to-Kafka messaging, TLS certificates, reconnection, logging, and end-to-end validation. I can structure the integration for reliability and maintainable operations. My experience includes Python, PHP, JavaScript, REST APIs, SQL, Linux, Docker, Git, automation, and database design. 1. Which Kafka version and deployment model are required? 2. Is the GPS feed already available as an API or stream? 3. What target timeline and testing environment will Targa provide? I can review the specifications first, then provide a milestone plan, timeline, budget, testing, documentation, and production handover. Best regards, Md Ruhul Ajom
€19 EUR in 1 day
5.6
5.6

The key here is making the Kafka pipeline reliable under real-time GPS conditions while enforcing the Air Side geofence and Targa’s exact event/data contract. I can handle the backend integration, including Kafka producer configuration, JSON payload generation, TLS certificate/CSR setup, reconnection, logging and end-to-end validation. I’ll structure the flow so KEYON, KEYOFF and TRACKING events are generated correctly, tracking remains within the required 10-second maximum, and geofencing is applied before data is forwarded to Targa. I can also take care of vehicle master/activation workflows and technical documentation. My background includes backend, web/mobile and real-time application development. I don’t have an exact Targa/Kafka GPS project documented in the supplied portfolio, so I won’t overstate that experience. Share Targa’s technical specification, JSON examples and current Kafka setup, and I can map the integration and estimate the implementation effort accurately.
€19 EUR in 5 days
5.0
5.0

Hello, High-frequency GPS updates (every 10 seconds) combined with TLS certificate requirements and airport Air Side geofencing are the core risks: message loss during network blips and ensuring only authorized vehicle data reaches Targa Telematics/SEASPA Real Time. I propose first to validate certificate exchange and Kafka connectivity in a staging loop before enabling live 10s tracking to minimize retries during cutover. I have implemented Kafka Producers and Kafka-to-Kafka pipelines for real-time IoT streams, including topic partitioning for high-throughput vehicle telemetry, producer acks and retries, idempotent producers, and consumer group rebalances under load. I have built reconnection logic and logging that replays undelivered JSON payloads after certificate refresh. I have delivered GPS/telematics integrations that handle events like KEYON, KEYOFF, TRACKING with per-vehicle state machines and server-side geofencing that filters by polygonal airport perimeters. I will start by provisioning a test Kafka topic and a certificate/CSR exchange with your SEASPA endpoint, then run an end-to-end loop that emits mocked GPS JSON at 10s intervals, triggers KEYON/KEYOFF events, validates geofence filtering for the Air Side, and performs failover tests. - 1. Your experience with Kafka I have 5+ years building Kafka Producers/Consumers, configuring partitions, acks, idempotence, TLS auth, and Kafka-to-Kafka replication for telemetry pipelines. - 2. Previous GPS/IoT integrations I integrated fleet GPS feeds with third-party telematics, implemented event handling (KEYON/KEYOFF/TRACKING) and polygon geofencing, and completed end-to-end validation with external endpoints. - 3. Technologies/languages you normally use Java/Scala for Kafka clients, Python/Node.js for integration layers, Linux servers, Docker, OpenSSL for CSR/TLS management, and JSON over HTTPS/Kafka. - Do you have a staging endpoint and certificate authority details for CSR testing? - Are vehicle identifiers and Air Side geofence polygons available in GeoJSON or WKT? Regards, @melopgabriel
€30 EUR in 1 day
4.3
4.3

Hi there! The real challenge here isn't just moving GPS data through Kafka - it's keeping the geofencing logic reliable and responsive when 10-second intervals matter. If your fence check runs late or drops an event, you've either flooded Targa with noise or missed critical tracking data. I'd build this with a local geofence cache that's updated independently of the producer loop, so tracking decisions happen immediately without blocking on external calls. I've shipped Kafka integrations for logistics platforms and worked directly with GPS event streams and polygon-based geofencing. I use Python or Go depending on throughput needs, handle certificate rotation properly upfront, and build in structured logging so failures are obvious during testing with Targa. I'd estimate 3-4 weeks depending on schema complexity and how much of Targa's infrastructure setup falls on us. Happy to dig into their specs and give you a tighter number once I see them.
€8 EUR in 7 days
3.8
3.8

Hello, I reviewed your project and understand you need a production ready Kafka to Kafka integration between your GPS fleet platform and Targa Telematics, including 10 second tracking, KEYON and KEYOFF events, airport geofencing, JSON payloads, TLS certificates, reconnection handling, and end to end validation. I am ready to start immediately and will build the integration around reliable real time processing, secure Kafka communication, and detailed logging. I will also handle vehicle configuration, testing, troubleshooting, and technical documentation. I am ready to work closely with your team and complete the integration properly. Could you provide Targa’s Kafka specifications and JSON examples for the initial setup? Best Regards, Sara
€100 EUR in 1 day
3.7
3.7

As a seasoned full-stack software engineer with over 8 years of hands-on experience developing complex backend systems and managing real-time data streams, I bring to the table an impressive skill set that is tailor-made for executing this project effectively. I have a deep understanding of **Apache Kafka** and have used it extensively alongside **JSON and backend integrations** on various projects. Specifically, in terms of GPS / telematics / IoT integration, my experience includes not just consuming and processing GPS data, but also employing geofencing techniques to ensure that data transmission occurs only within the predefined parameters - a skill that's directly relevant to your airport context project. Regarding language proficiency, I am versed in an array of technologies including **.NET, ASP.NET Core, Node.js, Python,** and more. Pairing this diverse technical knowledge with my adaptability and detail-oriented approach makes me well-suited to work on your particular tech stack as indicated in the description. Lastly, having successfully executed numerous GPS/IoT integrations in real-world scenarios in industries like e-commerce and car-sharing applications exemplifies my capacity to implement production-
€19 EUR in 1 day
4.0
4.0

Hi, I can build and complete the Kafka-to-Kafka integration between your GPS fleet platform and Targa Telematics/SEASPA Real Time, with a focus on reliability and production readiness. I have strong backend experience with Node.js/TypeScript, Python, REST/JSON integrations, real-time data pipelines, PostgreSQL, AWS, Docker, and event-driven architectures. I can work with Kafka producers/consumers, message validation, retry/reconnection logic, structured logging, and secure TLS connections. I’d implement the flow around GPS updates (≤10 seconds), KEYON/KEYOFF/TRACKING events, airport Air Side geofencing, JSON generation, Kafka delivery, certificate/CSR configuration, error handling, and monitoring. I’ll also handle vehicle activation/master-data workflows and technical documentation. I’ll validate the integration first in a controlled environment using Targa’s specifications and sample payloads, then perform end-to-end testing with their team before production rollout. Estimated delivery: **5–8 business days** after receiving the complete specifications, credentials/certificates, and test environment. Budget: **$1,200–$1,800**, depending on the final Kafka/security requirements. I can start by reviewing Targa’s technical documentation and defining the integration flow and milestones.
€19 EUR in 7 days
3.1
3.1

You need a production Kafka bridge that emits correctly shaped, certificate-authenticated vehicle events every ten seconds only when an airport vehicle is inside the permitted Air Side boundary. The hard part is reliable event delivery and state handling—not simply producing JSON. I have production experience with Python backend services, Kafka, RabbitMQ, WebSockets, AWS real-time pipelines, and API integrations. At Marin Software, I built serverless Python services and real-time data pipelines where event timing, retries, observability, and safe recovery were essential. I would test against recorded GPS streams before end-to-end validation with Targa, then document installation, configuration, activation/deactivation procedures, and fault recovery. I do not claim prior fleet/GPS integration experience without evidence, but the required Kafka and real-time backend work is directly aligned. Can you share the Targa topic/schema specification and the current source of GPS events?
€30 EUR in 3 days
3.2
3.2

Hi there The integration will consume GPS events from your fleet platform, apply the airport Air Side geofence, and publish specification-compliant JSON through a secured Kafka-to-Kafka connection to Targa Telematics / SEASPA Real Time. Tracking messages must be emitted at intervals of no more than 10 seconds, alongside KEYON and KEYOFF events. The main risks are certificate-based Kafka authentication, message timing, reconnect behavior, and preventing invalid or out-of-perimeter data from reaching Targa. These require controlled validation and observable failure handling. - Configure the Kafka producer and TLS certificates/CSR according to Targa’s supplied requirements. - Implement JSON mapping for tracking, KEYON, and KEYOFF events, including vehicle and master-data identifiers. - Apply Air Side geofencing before publication and enforce the maximum tracking interval. - Add retries, reconnection, structured logging, and error handling for production operation. - Perform end-to-end tests with Targa, vehicle activation checks, troubleshooting, and technical documentation. The result will be a tested production integration with validated data flow, security, and operational procedures. I can start immediately. Best Oleksandr
€150 EUR in 1 day
2.5
2.5

Palermo, Italy
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Member since Mar 28, 2019
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