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GIS/Map Frontend Engineer — Property Data Platform (Mapbox GL JS + [login to view URL]) We're building a real estate data platform that visualizes property records on interactive maps. We have a working Leaflet/HTML prototype displaying 56,000+ parcel polygons for a California county (color-coded with filtering and popups) and need it rebuilt as a production-grade Mapbox GL JS application inside Next.js. What we have: Working Leaflet prototype with 56K+ parcels GeoJSON and GeoPackage datasets (parcel geometries joined to property records) Python/geopandas data pipeline producing the source files Cloudflare hosting environment What we need built: Performance & Core Map Migrate from Leaflet to Mapbox GL JS with vector tiles (Tippecanoe or PMTiles) — current build loads raw GeoJSON which bogs down at scale Target: 60fps pan/zoom and sub-2-second initial load with 50K+ polygons Color-coded parcel polygons with toggleable schemes (by dollar amount, property type, year, status) Interactive popups with property details (ID number, address, dollar amounts, zoning, status) Map controls: basemap toggle (satellite/street), county boundaries, fullscreen, zoom-to-parcel Filter Panel & Search Sidebar with real-time filtering by dollar amount range, property type (residential/commercial/vacant), year, assessed value, acreage, and status — filters update the map instantly Search by parcel ID or street address with auto-zoom and popup Spatial Analysis Tools Click a parcel → highlight all matching properties within a configurable radius Adjacency detection: identify matching parcels sharing a boundary with the selected parcel Drawing tools: user draws a polygon, gets aggregate stats for everything inside it (count, total dollar value, average assessed value) Multi-Region Scaling Scale from 1 county to multiple counties across multiple states with a state/county selector and lazy-loaded tiles per region Architecture must support adding new states and counties without code changes — just drop in new tile files and config Document the tile pipeline so our data team can onboard new regions independently Mobile Collapsible filter panel, touch-friendly popups, usable on tablet and phone Technical Stack: [login to view URL] 14+ (App Router), React 18+, TypeScript preferred Mapbox GL JS v3 with vector tiles Tippecanoe, PMTiles, or equivalent tile pipeline Cloudflare Pages deployment (must work with existing Cloudflare setup) Tailwind CSS for styling Will consume a Supabase/PostGIS API built by a separate backend developer Required Experience: 3+ years with Mapbox GL JS or MapLibre GL JS Demonstrated experience rendering 10K+ polygons with smooth performance Vector tile generation (Tippecanoe, Martin, or similar) Strong [login to view URL] component architecture Familiarity with GeoJSON, GeoPackage, and Shapefiles Nice to Have: PMTiles on Cloudflare R2 experience PostGIS spatial queries Real estate or property data background Map box expert
Mã dự án: 40271301
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Hello Greetings, After reviewing your project description, I feel confident and excited to work on this project for you. But I have some crucial things and queries to clear out. Please leave a message on chat so we can discuss this, and I can share my recent work similar to your requirements. Thanks for your time! I look forward to hearing from you soon. Best Regards.
$1.500 USD trong 7 ngày
7,3
7,3

Hi there, I will build your production-grade Mapbox GL JS application with vector tiles, delivering 60fps performance at 50K+ parcels. The core build will include color-coded parcel rendering with toggleable schemes, interactive popups, real-time filter panel, and the spatial analysis tools you described including radius highlighting, adjacency detection, and polygon drawing with aggregate stats. For the tile pipeline, I will set up PMTiles on Cloudflare R2 with a config-driven architecture so your data team can onboard new counties by dropping in tile files and updating a JSON config, no code changes required. I will document the Tippecanoe workflow end-to-end. Questions: 1) For the Supabase/PostGIS API, will spatial queries like radius search and adjacency run server-side, or should those be computed client-side from tile data? 2) Do you need the drawing tool stats to persist or export, or just display in real-time? Looking forward to discussing further. Best regards, Kamran
$1.550 USD trong 25 ngày
7,0
7,0

Hello I have thoroughly reviewed your project description and am confident in my ability to assist you in completing it successfully. I believe it would be highly beneficial to delve deeper into the specifics of the job to determine the most effective way forward. I am open to scheduling an interview at your convenience, and I genuinely appreciate the chance to collaborate with you on this project. Your response is eagerly anticipated, and I'm excited about the prospect of working together. Thank you for considering my proposal. Looking forward to your prompt reply! Best regards Rekha!!!
$1.500 USD trong 7 ngày
7,0
7,0

Hi there, I've thoroughly reviewed your project for building a high-performance GeoData visualization platform using Mapbox and Next.js. With over 3 years of expertise in Mapbox GL JS and a proven track record of seamless migrations from Leaflet to Mapbox, I am confident we can take your existing Leaflet prototype and enhance it to deliver the smooth, interactive experience you're aiming for. My experience includes rendering large datasets with efficient vector tiles, ensuring optimal performance of 60fps during pan/zoom and achieving under 2 seconds for initial load times. By utilizing your existing GeoJSON and Cloudflare hosting environment, we'll maintain the functionality of color-coded parcel polygons and implement real-time filtering for a dynamic user experience. You can count on me to provide comprehensive documentation for your data team, allowing for future scalability across multiple regions. Let's clarify the details to get started! What specific features are you considering for user customization in the filtering sidebar? Thanks,
$1.835 USD trong 14 ngày
6,5
6,5

Hello, Are you ready to elevate your property data platform with high-performance geo-data visualization? Our team specializes in delivering seamless transitions from Leaflet to Mapbox GL JS, fine-tuning performance to ensure smooth interactions, even with large datasets. Let's discuss how we can bring your vision to life and enhance user engagement through interactive mapping. Best, Smith
$1.500 USD trong 7 ngày
5,5
5,5

hello ,i have carefully reviewed your platform requirements and i have solid experience building interactive map based web applications using modern react frameworks and large geospatial datasets where performance and smooth user interaction are critical i understand the transition from leaflet prototypes to a production ready vector tile architecture and the importance of scalable map rendering i can rebuild the application in next js with optimized mapbox rendering efficient tile loading responsive filtering and interactive parcel popups while keeping the structure modular for multi region expansion the system will be designed for fast loading smooth navigation and clean component architecture that works well with your existing data pipeline and cloudflare environment i focus on writing maintainable code clear documentation and collaborative development with backend teams working on spatial apis and databases i would be glad to discuss your current prototype and performance goals to plan the next steps
$1.500 USD trong 20 ngày
5,7
5,7

Hello, I see you're looking to rebuild your real estate data platform from a Leaflet prototype to a production-grade Mapbox GL JS application. With over three years of experience in developing high-performance geospatial visualizations, I can help you achieve the required 60fps pan/zoom and rapid load times while seamlessly integrating the functionalities you need. My approach would involve migrating your current GeoJSON data to vector tiles, optimizing performance, and ensuring the user-friendly features such as real-time filtering and interactive popups are perfectly tailored to your specifications. For a similar project, I successfully transformed a local government GIS application, allowing users to interact with thousands of records efficiently. I estimate this project could be completed within 4-6 weeks. One suggestion is to add a tutorial or help section to guide users unfamiliar with filtering options. Best regards, Khurshid Ahmed
$1.665 USD trong 1 ngày
4,6
4,6

As an experienced full stack developer boasting over six years of experience, I've had the opportunity to work on a vast array of projects, many of which revolved around data visualization, APIs, and mapping; including GoogleMap integrations. This gives me a deep understanding of the technical nuances and specificities you're looking for in your project. Specifically, I have extensive experience with JavaScript, Angular, React (including the latest version 18), and have implemented sophisticated mapping functionalities using Mapbox GL JS and MapLibre GL JS - all technologies at the backbone of your project requirements. Moreover, I've built complex architecture that scaled from handling large volumes of data to supporting new regions without code changes like you're anticipating with the different states and counties. As an added bonus, I have worked on similar projects that involve real estate or property data before. While skills are important, my commitment to delivering high-quality solutions and my penchant for continuous improvement allow me to stay ahead in my field. Given all these points, I believe that I'm not only well-equipped with the skill set necessary for вашуrapyровка but also hold a genuine appreciation for the work уthat用户'做有效平台doin user数据r logic platform? 两 indefatigably to make sure my clients are satisfie动地图ation their上工作iving.
$1.010 USD trong 20 ngày
4,6
4,6

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 project. 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!
$1.500 USD trong 7 ngày
4,6
4,6

Based on your scope, this is a scalable Mapbox rebuild focused on performance and spatial tools. Here’s my approach: 1. Migrate Leaflet to Mapbox GL with vector tiles using Tippecanoe or PMTiles 2. Build real time filter sidebar and search by parcel ID or address with instant map updates and structured popups. 3. Implement spatial tools including radius match, adjacency detection, and draw based aggregation using PostGIS support. 4. Structure multi county scaling via config based tile loading so new regions can be added without code changes. Lets connect so we can discuss more about it
$1.000 USD trong 4 ngày
4,1
4,1

I hope you're doing well! My name is Nawal, and I bring over nine years of experience in [ProjectTitle]. After carefully reviewing your project brief, I’m confident that I understand your needs and can deliver exactly what you're looking for. Here’s what I offer: ✅ Multiple initial drafts within 24 to 48 hours ✅ Unlimited revisions until you're 100% satisfied ✅ Final delivery in all required formats, including the editable master file and full copyright ownership You can check out my portfolio and past work here: ? Freelancer Profile – eaglegraphics247 I’d love to discuss your project further and explore how we can make your vision a reality. Let me know a convenient time for a quick chat! Looking forward to working together. Best regards, Nawal
$1.665 USD trong 1 ngày
2,9
2,9

Hey, I can start right now. I have just similar experience. What really matters here is achieving high-performance geo data visualization while maintaining smooth user interactions. The tricky part is handling large datasets like 50K+ polygons without sacrificing performance. I've worked on projects involving rendering thousands of dynamic elements on maps using Mapbox GL JS and Next.js. While I haven't done this exact project, I've tackled similar challenges with vector tile generation and real-time filtering. I will share my related works in the private chatting. Let's discuss more details? Best,
$1.700 USD trong 20 ngày
2,2
2,2

Hello, I hope you are doing well. I understand that you are looking to build a REAL ESTATE DATA PLATFORM and I would be happy to help. I have extensive experience in designing and developing Application and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.
$1.000 USD trong 12 ngày
4,7
4,7

Hi, I would love to help. I understand what you need and will focus on quality results while keeping you updated. I am an experienced and specialized freelancer with 10+ years of practical experience in JavaScript, Python, Tailwind CSS. Visit my profile to check latest work, client ratings and quick examples. Connect in chat to discuss details and next steps. Regards.
$2.000 USD trong 7 ngày
0,0
0,0

⚠️!!NB!! ⚠️ YOU NAME THE PRICE — I'LL DOUBLE THE IMPACT Hi there! I am an expert in GIS and web app development with extensive experience in Mapbox GL JS and Next.js. Your project to rebuild the real estate data platform aligns perfectly with my skills in dynamic mapping and performance optimization. While others coast, I’m driven to deliver exceptional results. This project isn’t just work — it’s my opportunity to showcase my expertise. Your success is my priority. I propose migrating your Leaflet prototype to a high-performance Mapbox GL JS application, ensuring smooth rendering of 50K+ polygons at 60fps. I’ll implement interactive features like color-coded parcel polygons, real-time filtering, and comprehensive spatial analysis tools. With a focus on scalability, I’ll architect a solution that effortlessly accommodates multiple regions and integrates seamlessly with your existing Cloudflare setup. My familiarity with vector tile generation and responsive design guarantees a robust mobile experience. Let’s discuss how we can elevate your platform together! Regards.
$1.000 USD trong 7 ngày
0,0
0,0

Hi, I’m a US-based Full-Stack Software Engineer with experience building scalable Ai, web, mobile, and desktop applications for startups and growing businesses. I’ve carefully reviewed your project requirements and am confident I can deliver a high-quality, reliable solution tailored to your needs. My focus is on writing maintainable, secure code while ensuring performance and scalability for long-term growth. I prioritize clear communication, meeting deadlines, and delivering results that align with business objectives. I can start immediately and would be happy to discuss your project in more detail to understand your goals and technical requirements. Let’s build a solution that not only works. Best, Jeremy W.
$1.500 USD trong 7 ngày
0,0
0,0

Hey! I can help with your project. I have experience with Mapbox GL JS. I've built interactive maps before. Smooth performance is my specialty. I can migrate your Leaflet prototype. I'll ensure 60fps pan/zoom. Sub-2-second load time is achievable. Color-coded polygons? No problem. I will add interactive popups too. Filters and search will be instant. Spatial analysis tools are doable. I can implement drawing features. Multi-region scaling will work smoothly. Mobile usability is key. I'll ensure it works on all devices. Tailwind CSS styling will look great. Let's make this platform shine! Cheers! Let me know what you think.
$1.500 USD trong 7 ngày
0,0
0,0

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