Geojson postgis openlayers jobs

We need one independent GIS practitioner for a paid, fixed-price technical pilot covering two separate workstreams: LeafEngines Agricultural Intelligence v1.0.10: controlled QGIS Desktop plugin installation and workflow evaluation. SoilCertify Phase 0: independent review of four frozen PDF/GeoJSON pairs covering U.S. and GB Summary and Detailed outputs, including field-level consistency and strict RFC 7946 review. The products are independent. LeafEngines is not required to generate, reproduce, validate, or match SoilCertify reports, and SoilCertify users do not depend on LeafEngines. Optional complementary observations must not be presented as technical dependencies. This is not unpaid testing, software development, remediation, implementation, or an endorsement. We need reproduc...

... * Customer Web Application * Super Admin Panel * Role-Based Access Control (RBAC) * Manager / Accounts / Marketing / Operations roles * Category & Subcategory Management * Dynamic Fields & Form Management * User & Service Provider Management * Listings / Products / Services Management * Reports & Dashboard ## 3. Backend & Database * Python + FastAPI * REST APIs * PostgreSQL * JSONB * PostGIS * Redis * Docker / Linux VPS / Nginx * Secure and scalable architecture ## 4. Authentication & Security * Phone OTP * WhatsApp Cloud API as primary OTP provider * SMS fallback * Backend-controlled OTP generation, expiry, verification, rate limiting and retry * Authentication & Authorization * Session Management * Login / Device History * Last 3 login/device re...

...developer to help complete and improve SurveyFlow, a land surveying and GIS platform. The system combines a React/Vite web dashboard, FastAPI backend, PostgreSQL/PostGIS database, and Expo/React Native mobile field-survey application. The main goal is to build a reliable workflow for surveyors to collect GPS/GNSS control points in the field, work offline, synchronize data when internet connectivity returns, visualize spatial data on interactive maps, manage surveying projects and documents, and prepare professional survey deliverables. Key work includes reviewing the existing codebase, fixing backend/frontend integration issues, improving PostGIS/GIS functionality, strengthening offline synchronization, improving authentication and permissions, testing APIs, improving th...

...datasets * Automation * Scheduled data pipelines * Geospatial data and coordinate matching * Git / GitHub Experience with some of the following is a major advantage: * Machine learning * Recommendation engines * Ranking and scoring algorithms * Time-series data * Marine weather data * Oceanographic datasets * Environmental APIs * Meteorological data * Historical and forecast datasets * GIS / PostGIS * Geospatial analysis * Open-Meteo or similar environmental data services * Supabase * AWS / GCP or other cloud infrastructure * Data validation and anomaly detection * LLM / AI integrations * Vector databases or embeddings The person we want We are not looking for someone who simply follows instructions or writes individual scripts. We want someone who can look at a difficult da...

Looking for an Automation & AI Expert to build a Facebook Scraper, AI Parser, and Moderation Dashboard Project. I have build a free hyper-local mobile app that aggregates food and drink promotions (Happy Hours, dinner deals, etc.) from Facebook pages onto an interactive map and calendar layout. I am currently sourcing these offers manually, but I need to automate the backend pipe...make minor edits if needed, and click a single "Approve & Publish" button to push it live to the app database in under 2 seconds. Ideal Freelancer Skills: Python (BeautifulSoup, Scrapy, or API integration) Open AI API / LLM text processing Backend dashboard development (e.g., Node.js, Django, or a low-code framework like Retool for speed)Experience with database mapping/geocoding (PostgreSQL...

Job Title: Senior DevOps Engineer: Kubernetes & PostGIS Infrastructure Project Overview: We require a DevOps engineer to deploy and manage the infrastructure for a microservices-based spatial data platform. The system architecture relies on a unified PostgreSQL/PostGIS database serving specialized map tile, geocoding, and routing engines. The objective is to transition the current local build into a highly available, scalable production environment. Core Technology Stack: - Deployment: Docker, Kubernetes. - Database: PostgreSQL 16 + PostGIS 3.4 (High Availability setup required). - Backend Services: Martin (Vector Tiles), Pelias (Geocoding), Valhalla (Routing). - API Gateway: Kong, APISIX, or Traefik. - Observability: Prometheus, Grafana, Loki/ELK. - Automation: ...

Cloudport dMRV – Phase Overview Phase 0: Production build. Calculation-ready for Cookstoves, Biochar, Blue Carbon (others stubbed). Stack: Node.js/TypeScript + BullMQ, separate Python carbon engine, PostgreSQL/PostGIS, AWS ECS. Needs repo access, GEE sandbox, registry agreements before start. Phase 1 (Days 1–4): Scaffold, CI/CD, staging setup. Full DB schema with audit logs and encrypted IoT triggers. JWT auth with RBAC/DPA enforcement. Public branding API. Acceptance: passing security tests, clean CI/CD. Phase 2 (Days 5–10): Org-scoped Sites API; patrols/alerts/uploads; satellite ingestion via GEE; webhook verification with idempotency; BullMQ processing with DLQ retries; stale-data alerts; equipment API with offline sync. Acceptance: duplicate rejection, DLQ r...

...(إحداثيات، رسم حدود تفاعلية على الخريطة). • رفع خرائط الوصفات (Prescription Maps) وربطها بكل قطعة. • إنشاء مهام الرش، تعيين العمال، وتتبع الحالة حتى الإتمام مع سجلّ نشاط زمني. البنية يجب أن تُتقن التصميم النظيف القابل للتوسع مستقبلًا نحو تخطيط مسارات آلي ومراقبة آنية. التقنيات المقترَحة واجهة React أو Vue، خلفية Node.js (Express) أو FastAPI، قاعدة بيانات تناسب البيانات المكانية مثل PostGIS أو MongoDB-GeoJSON. أعتمد Git flow داخل مستودع خاص مع توثيق شفاف لكل طبقة كود. التسليم 1. صور Docker وملفات docker-compose مع سكربت نشر جاهز. 2. README خطوة بخطوة للإعداد محليًا وعلى خادم إنتاج. 3. دليل مختصر للمسؤول يشرح دورة العمل. 4. فيديو توضيحي يعرض المزايا من الدخول حتى إغلاق مهمة رش. أسلّم المشروع بعد اختبار الاستجابة على مختلف الأجهزة والمتصفحات، واخت...

...focused technical pilot involving a QGIS Desktop plugin, a matching preliminary PDF report, and GIS-ready GeoJSON files. This is not unpaid product testing, implementation work, code remediation, or a promotional endorsement. We need reproducible technical evidence from a GIS practitioner, not another general report-readability review. The evaluator will assess: QGIS plugin installation and first use. Plugin, PDF, GeoJSON, and prior-workflow consistency. Strict RFC 7946 GeoJSON conformance and GIS behavior. Metadata, provenance, geometry, null-value, and jurisdiction disclosures. Professional Boundary The supplied materials are preliminary Phase 0 screening and due-diligence aids. GeoJSON is an interoperable input used alongside authoritative cadastral, ju...

...(Preferred) Frontend Unreal Engine 5 (preferred) or Unity Backend Python (FastAPI) or .NET Database PostgreSQL + PostGIS GIS Cesium ArcGIS SDK (optional) QGIS compatibility 3D Modelling Blender CAD import support Authentication JWT / OAuth Deployment Windows desktop application Optional web dashboard --- Deliverables Complete source code Database schema Documentation Installation guide User manual Admin manual API documentation Sample 3D environment Testing reports 3 months of bug-fix support --- Desired Freelancer Skills Unreal Engine 5 or Unity GIS and geospatial development 3D modelling and CAD workflows PostgreSQL/PostGIS Python or .NET backend AI/ML integration Desktop application development Simulation systems Techni...

...roles * Audit logs * API logging * Error handling * API conventions * Background jobs/workers * Notifications * File/object storage * MinIO * Realtime/event architecture * OpenAPI documentation * Testing structure * Deployment configuration * General backend CRUD patterns * Status/state-machine patterns * Availability/assignment concepts * Driver/vehicle assignment concepts * Geographic data / PostGIS * Maps-related backend infrastructure The new team should review the existing codebase first and identify what can be reused directly, what can be adapted, and what must be newly developed. We specifically want to avoid rebuilding generic backend infrastructure that is already working. --- # BlessDriving Core Product BlessDriving will be an independent driving school management...

...full details, lat/lon. POST /outcomes – receives visit outcomes from the rep’s software/mapping tool (e.g. “measurement booked”, “no interest”). Lead is then marked as visited and excluded from future queries. Simple auth (API key or token). Technical specs Backend: Python (Flask/FastAPI) or Node.js – whichever you’re faster with. Database: PostgreSQL (PostGIS extension not mandatory for this piece, but should be compatible). Deployment: Provide a Docker container or clear instructions to run on a cloud VM. Code quality: Environment variables for secrets, clear README, minimal test coverage. Deliverables Fully working backend with admin UI (can be minimal, functional)....

...**Asaas** gateway (Pix, boleto — webhooks), and later an MCP server so AI agents can query the platform under strict policies, plus RPA automation for Brazilian water-rights agencies. ## What already exists (read carefully — this defines the job) We have a **versioned architecture and data-model baseline (v3.0.0 handoff package)** produced and validated statically. It contains: - PostgreSQL/PostGIS **multi-tenant relational model**: ~147 tables across 19 domain schemas (platform, IAM, registry, CRM, commercial, operations, hydrogeology, observations, measurement, finance, post-construction, documents, integration, audit, MCP); - **12 migrations** with tenant isolation enforced by Row-Level Security **and** composite foreign keys `(tenant_id, id)` on every tenant-sc...

...layout as long as the schedule is clear and easy to read). Real-time tracking, searchable stops, and pop-up details are not required; the goal is a straightforward, lightweight public-information display driven by the static GTFS data. I would like to have a console that provides information similar to Google Maps. I’m happy for you to choose your preferred mapping stack—Leaflet, Mapbox GL JS, OpenLayers, or another JavaScript library—provided it loads quickly and can be self-hosted. Clean, well-commented code and simple deployment instructions are essential so I can maintain the feed updates myself in the future. Deliverable: • A web page (HTML/JS/CSS) that ingests my GTFS feed, renders the routes, and shows the associated timetables, with smooth zo...

Hiring a Commission-Based Tech M&A / B2B Deal Sourcer ($3k–$10k Cash/Deal) ​We are seeking an independent Tech M&A Advisor, Software Deal Sourcer, or Enterprise Sales Specialist to help place our complete, production-ready software IP and regional white-label licenses. ​The Asset (Sparkey Ecosystem) ​Backend & Cloud: High-concurrency Golang microservices, persistent WebSockets, PostGIS geospatial engine, and auto-scaling GCP Kubernetes manifests. ​Frontends: 5 Enterprise React Portals (Gemini AI Master Admin, Sponsor Hub, Agent Desk, Driver Workspace, Customer Suite). ​Mobile: 2 Live, Play Store-approved native Android apps (Rider & Driver Bidding). ​Deal Structures & Your Commission ​We are offering two acquisition models for IT agencies and software consu...

I’m ready to divest a fully-built mobility/SaaS technology stack and need a seasoned broker who already speaks to US-based corporate buyers and M&A desks, particularly those that focus on SaaS acquisitions. What you will pitch • A turnkey platform built in native Golang microservices with PostGIS and WebSockets, deployed to an auto-scaling Kubernetes cluster on GCP. • Five React web apps—Gemini AI master admin, support agent console, driver portal, customer portal, and an additional ops interface—plus two companion Android apps. All code, infrastructure scripts, and documentation are production-ready and covered by an NDA-protected repository. The current asking price is $250,000; I’m offering a 10 % success fee ($25,000) released throug...

We are building a hyper-local discovery platform that connects two type of users. We are looking for a highly motivated Full-Stack App Development Freelancer to work directly with the founding team to build, scale, and optimize our mobile applicati...Backend & Database: Manage Supabase (PostgreSQL) databases, including table architecture and Row Level Security (RLS) policies. API Integration: Connect third-party APIs (e.g., OTP services like MSG91/Fast2SMS, identity verification APIs like [Aadhaar Redacted] verification services, and payment SDKs) to the app flow. Logic Implementation: Develop core features including geolocation-based search (PostGIS), chat functionality, and user role-switching logic. Quality Assurance: Test app performance, debug issues, and ensure a smooth us...

...with an age group breakdown (specifically highlighting the 18–45 adult demographic density). • You present the findings in two formats: a high-resolution map (PDF/PNG) with legends and a short written brief explaining the key numbers, any notable spatial patterns and how they translate into opportunity. Acceptance criteria 1. Catchment boundary logic explained and reproducible (shapefile or GeoJSON). 2. Income statistics sourced from an authoritative database and properly cited. 3. Visuals are clear and ready for board-level presentation. I may explore competitor locations and other demographic variables later, so please keep your code or project files organised for quick add-ons. Let me know your proposed approach and turnaround time....

...full details, lat/lon. POST /outcomes – receives visit outcomes from the rep’s software/mapping tool (e.g. “measurement booked”, “no interest”). Lead is then marked as visited and excluded from future queries. Simple auth (API key or token). Technical specs Backend: Python (Flask/FastAPI) or Node.js – whichever you’re faster with. Database: PostgreSQL (PostGIS extension not mandatory for this piece, but should be compatible). Deployment: Provide a Docker container or clear instructions to run on a cloud VM. Code quality: Environment variables for secrets, clear README, minimal test coverage. Deliverables Fully working backend with admin UI (can be minimal, functional)....

...usefulness Pilot Deliverables From Each Participant Each participant will be asked to review the PDF report and, where available, the GIS-ready GeoJSON output. The feedback deliverables are: A written or quoted use case explaining how the report and/or GeoJSON output could support a real parcel-screening, GIS, landscape, irrigation, environmental, or land-evaluation workflow A workflow integration note explaining where the PDF and GeoJSON output would fit into the participant’s current process, including QGIS, ArcGIS, Mapbox, Leaflet, parcel screening, client reporting, or technical library use One direct recommendation for improving the report, GeoJSON fields, layer structure, metadata, terminology, API output, or client-facing usefulness This pil...

I’m looking for someone that can map out Harris County showing all the parcels, residence schools, and daycares that are at least 1,000 feet apart. Additionally, I would like this map to include zoning data where available and any other relevant GIS layers that could enhance the dataset. Deliverables should be in Shapefile and GeoJSON file formats. Please ensure there is a detailed layout of properties with a clear 1,000-foot radius from enclosures. Do let me know if you need further clarifications before starting.

...allowed for authorised users and should show sent, pending, successful, or failed status. Tracker integration via TCP/HTTP is required. We currently use Teltonika trackers, and protocol documents can be provided. The platform should be built in a scalable way so more tracker models can be added later. Suggested technology stack can be React, Vue, Angular, Node.js, Django, Laravel, PostgreSQL/PostGIS, MongoDB, WebSocket, DigitalOcean, AWS, or similar. I am open to your recommended stack if it is reliable, secure, and maintainable. Preferred approach: Start with one demo vehicle first. Once live tracking, ignition status, door lock/unlock detection, daily reports, geofence alerts, and immobiliser command are tested successfully, we can roll out to the full fleet. Acceptance tes...

...Production-grade Python backend (FastAPI/Flask), Docker, AWS, PostgreSQL. **Seniority** - 5+ years, with at least one full cycle of shipping *and operating* an ML system that had real users and real failure modes. Kaggle competitions and demos don't substitute for this. - Comfortable operating with significant ambiguity and no safety net. **Nice to have, not required** - Geospatial/GIS experience (PostGIS, OS MasterMap, QGIS). - Prior proptech exposure. - UK planning/RICS domain familiarity. - FCA/FSMA-adjacent compliance experience. ## Practical - British National (Overseas) / right-to-work in the UK required; we cannot sponsor at this stage. - Compensation: competitive salary, cash only — no equity. Open to a fractional/contract arrangement (3–6 months) for ...

... renewable energy storage, agriculture and biodiversity — and connects programmatically to international carbon credit registries. We have a completed 100-page technical specification covering every database table, API endpoint, screen, build step and security requirement. You are executing a fully documented brief, not designing architecture from scratch. What you will build: PostgreSQL 15 + PostGIS — spatial data is central to everything on this platform Multi-tenant white-label architecture — branded subdomain per client, zero cross-tenant data visibility, org-scoping middleware on every database query 40+ JWT-authenticated REST API endpoints with role-based access control across six user roles Dynamic JSONB-driven measurement forms that adapt to project type...

...imagery and GIS layers with AI so I can validate a larger platform idea. The goal at this stage is pure data analysis: ingest the two data sources, run machine-learning workflows that surface patterns or anomalies, then surface the results through a minimal interface or notebook I can demo to stakeholders. A typical stack for me would be Python with GeoPandas, rasterio, TensorFlow or PyTorch, plus PostGIS or a lightweight spatial database—but I’m open if you have a smarter path. What matters is that the pipeline reliably pulls in the imagery and vector layers, cleans and aligns them, applies the models, and outputs clear, reproducible insights. Please attach past work that proves you’ve built something similar—ideally an AI application that touched eithe...

In QGIS or OSM just add the tags, roads, footpaths and all the traffic signals and signboards Key points • Boundary type: a regular grid layout • All tags, sources and signboards must be individually clickable, searchable, and easy to update later—ideally by editing a JSON or GeoJSON file. Deliverables 2. Source data file(s) containing the boundary grid and all point or label information. 3. Brief instructions so I can add or edit markers myself after hand-over. If you have recent examples of web mapping work, please include a link so I can gauge loading speed and interface clarity.

...decline? - How can users build custom reports similar to Excel Pivot Tables? ## Suggested Technology The freelancer may choose the final stack, but the system should preferably use: - Backend: Python, Node.js, or similar - Database: SQLite, PostgreSQL, SQL Server, or similar - Frontend: HTML/CSS/JavaScript, React, Vue, or similar - Charts: , ECharts, Plotly, D3.js, or similar - Maps: GeoJSON/SVG world map, Leaflet, D3, or similar - Reports: Excel and CSV export - Deployment: Windows Server 2019 or newer - Access: HTTPS over internal network ## Data Model The system should support trade records containing: - Period, year, month - Flow type: import/export - Commodity code / HS code - Commodity description - Product group / tariff section - Partner country - Customs office - T...

...references of similar platforms they have previously deployed. Key Technical Requirements & Scope: Backend: Laravel Framework (PHP) – Secure RESTful APIs, robust queue management to handle high-frequency vehicle data pings, and cloud-native architecture. Frontend: Vue.js – High-performance Single Page Application (SPA) for a clean, responsive operator and admin dashboard. Database: PostgreSQL with PostGIS extension (Mandatory for advanced geospatial data, live tracking, and geofencing calculations). Mobile App: Flutter – Cross-platform architecture ready for a seamless driver/hirer environment with offline data synchronization features. Core Framework Gaps to Address: Integration of live GPS/IoT gateways, dynamic routing & mapping APIs (Google Maps...

...geospatial and location intelligence features. 5. Improve dashboard UX/UI and product usability. 6. Optimize performance, scalability, and maintainability. 7. Recommend product roadmap improvements based on industry best practices. Preferred Experience: * Strong and TypeScript expertise. * SaaS product development experience. * GIS, mapping, geospatial analytics, Google Maps, OpenStreetMap, GeoJSON, or location intelligence experience. * Experience building analytics or business intelligence platforms. * Ability to work with existing codebases. * Long-term collaboration preferred. Please include: * Team size. * Relevant SaaS products you have worked on. * GIS / mapping / geospatial experience. * Similar analytics platforms you have built. * Monthly rate and availability. * T...

...like: * overall market * top gainers * top losers * top 100 coins * Bitcoin / altcoin view if possible 2. **AQI / Air Quality Heatmap** * Data source: OpenAQ API or similar * Must show AQI / air quality data visually on a map * Should support region filters like world, US, India, etc. if possible 3. **Earthquake Heatmap** * Data source: USGS Earthquake GeoJSON feed * Must show recent earthquakes on a map * Should support filters like recent earthquakes, magnitude, and region if possible 4. **US Stock Market Heatmap** * Data source: free or low-cost stock API, only if legally allowed for display * Must support market/sector-style heatmap * If free legal data is not possible, please clearly mention the limitation and sugges...

...references of similar platforms they have previously deployed. Key Technical Requirements & Scope: Backend: Laravel Framework (PHP) – Secure RESTful APIs, robust queue management to handle high-frequency vehicle data pings, and cloud-native architecture. Frontend: Vue.js – High-performance Single Page Application (SPA) for a clean, responsive operator and admin dashboard. Database: PostgreSQL with PostGIS extension (Mandatory for advanced geospatial data, live tracking, and geofencing calculations). Mobile App: Flutter – Cross-platform architecture ready for a seamless driver/hirer environment with offline data synchronization features. Core Framework Gaps to Address: Integration of live GPS/IoT gateways, dynamic routing & mapping APIs (Google Maps...

...building from scratch. What's already done: - Full frontend code: customer-facing PWA - Full Node.js/Express backend code: REST API covering stores, products, geo (PostGIS), orders, auth - JWT authentication with refresh tokens and role-based access - Stripe Connect integration for marketplace checkout with automatic platform fee splitting - Shopify OAuth + product sync (with webhook handlers for live updates) - Firebase Cloud Messaging push notification service with 24-hour alert suppression logic - Admin panel backend (retailer approval, order management, refunds, broadcast notifications) - PostgreSQL + PostGIS database schema (all tables, indexes, migrations) - PWA and service worker () for installable web-app experience - GitHub Actions CI/CD pipeline (deploy

...have a detailed map that currently exists only as a PDF. I need it transformed into an interactive Google-Maps-based layer so users can zoom, pan, and click just as they would in any standard web map. What I will hand over to you • The same geographic data that sits behind the PDF, exported as clean shapefiles/geoJSON. • A folder of images and text snippets that must appear at specific points. What I need back • A single web page (HTML + JS) that loads the shapefile/geoJSON as a custom map layer through the Google Maps JavaScript API. • At each plotted feature, a marker that shows a text label by default and opens an image-rich, interactive pop-up window on click or tap. • Styling that respects the colour and line-weight conventions alr...

See our chat for project details. I most likely only need the geojson files for 1) the 2400 acre rectangle, and 2) the 3600 acre rectangle.

... • Multi-page PDFs, TIFFs • Text & office formats • DOCX, RTF, TXT • XLSX, CSV (spreadsheets; price lists, labour rates, BOQ exports) • Excel templates used by your ERP • Web / API data • REST APIs (JSON), SOAP/XML, HTML scraping of supplier portals Email / messaging • EML / MBOX (for parsing email attachments/requests) — helpful but optional • Geospatial / mapping (if applicable) • GeoJSON, Shapefile (.shp) Miscellaneous • Annotated/overlay formats (DXF layers, PDF markups) • Versioned files and common archive formats (ZIP, 7z) Ideal Skills & Experience Technical ML / CV • Strong ML/computer‑vision building production CV systems (object detection, segmentation, layout analysis). &bu...

...responsive and decisive during reviews. Deliverables • Sensor-ready data pipeline with automated ingestion • Secure database structured for long-term, multi-year storage • Web or cross-platform interface optimized for tablets in the field • Visualization module comparing current versus historical migration routes • User guide and brief training session Tech choices are yours—Python, Node, PostGIS, QGIS, or React are all fine—as long as the final product is stable, well-documented, and easy for researchers to extend. If this sounds like your specialty, please outline your proposed tech stack, timeline, and any similar wildlife projects you’ve completed. Reach me directly at [Removed by Freelancer.com Admin] with clarifica...

I’m assembling a study that relies on precise land-use and land-cover information for the whole of Telangana, so I need a complete boundary dataset at field-level granularity. The output must be delivered as a single, well-structured GeoJSON file that I can load directly into QGIS or Python geopandas without extra conversion. What I expect from the final file • Coverage: the entire state of Telangana, clipped to the official state boundary. • Detail: high-resolution polygons that distinguish individual fields or parcels, not just district or mandal outlines. • Attributes: a clear LULC code and readable class name for every polygon (e.g., crop type, water, built-up, forest, barren, etc.). • Projection: WGS-84 (EPSG:4326) to keep things web-map frien...

I have a full set of hi...and digitally outlined, then its volume calculated. Please include cut/fill or other volume methods you normally apply so the numbers are easy to audit. Typical tools such as Pix4D, DJI Terra, Agisoft Metashape or similar photogrammetry software are fine—choose whichever gives the most reliable metric output. Deliverables • Orthomosaic (GeoTIFF) and 3D model files • Vector layer (SHP/DXF/GeoJSON) showing every stockpile footprint, uniquely labeled • Spreadsheet or PDF report listing volumes with units, method used, and snapshot images for reference I will supply the original photo set and any ground control information available as soon as we agree on the workflow. Let me know your estimated turnaround and any questions about t...

I’m assembling a study that relies on precise land-use and land-cover information for the whole of Telangana, so I need a complete boundary dataset at field-level granularity. The output must be delivered as a single, well-structured GeoJSON file that I can load directly into QGIS or Python geopandas without extra conversion. What I expect from the final file • Coverage: the entire state of Telangana, clipped to the official state boundary. • Detail: high-resolution polygons that distinguish individual fields or parcels, not just district or mandal outlines. • Attributes: a clear LULC code and readable class name for every polygon (e.g., crop type, water, built-up, forest, barren, etc.). • Projection: WGS-84 (EPSG:4326) to keep things web-map frien...

...plan my own trips. The core requirement is straightforward: I must be able to plot a route and see my chosen Points of Interest (POI) along the way. Dropping, editing, or deleting those POI markers should be effortless, ideally through a simple right-click or form pop-up. No existing GIS setup is in place, so you are free to build with the tools you know best—Leaflet, Mapbox GL JS, OpenLayers, QGIS Server, PostGIS, GeoServer, or another open-source stack—provided the finished map runs smoothly online and leaves me with no licence fees. Deliverables • A web-hosted interactive map that lets me create routes and manage POI markers • All source code, configuration files, and clear step-by-step deployment notes so I can host it myself later The projec...

...desktop-focused real-estate CRM and prospecting tool that I built for my own use. The design, layout, and most of the functionality are already in place—everything lives in a / React front-end with a Node.js scraper layer and a PostgreSQL/PostGIS database. What I still need is rock-solid scraping logic and a quick production polish. Here’s what remains: • Scraper integration – refine or rewrite the existing Node.js routines so they reliably pull only property addresses from Rightmove, Zoopla, and OnTheMarket and store them in Postgres (geo-enabled via PostGIS). • Final UI / functional tweaks – minor adjustments so the current pages feel production-ready on desktop browsers. • Proof you’ve reviewed the code – downlo...

Prepare geojsoPrepare GeoJSON zoning polygons from the provided PDF map. The work includes drawing the waste collection zone boundaries, adding basic zone attributes, checking the polygon geometry, and exporting the final result as GeoJSON.n files

...layers and I need a clear, data-driven picture of how land use patterns emerge across the study area. The core objective is to identify spatial relationships rather than predict future change, so the work will centre on exploratory spatial analysis and compelling map visualisation. Here is what I expect: • Clean, well-documented GIS processing of the raw geographic data I provide (Shapefile or GeoJSON). • Pattern-detection techniques applied—hot-spot analysis, kernel density, or other methods you find appropriate—so the resulting outputs highlight significant clusters and gaps in land use. • A polished map series (static PNG/PDF and an optional interactive web map if feasible) that communicates the findings to a non-technical audience at a glance....

...product (MVP) featuring an integrated geospatial data pipeline (QGIS/PostGIS), a high-performance Python risk scoring API (FastAPI), and a QGIS-based visualization tool capable of performing "fatal flaw" screening for Solar, Wind, BESS, and Data Center sites across the Continental United States (CONUS).2. Technical Stack (Mandatory)The solution must be delivered using the following technologies to ensure scalability and ease of hand-off:ComponentTechnologyPurposeGIS ClientQGIS (Latest Stable)Primary visualization and input definition DatabasePostgreSQL / PostGISCentral repository for all constraint layers with spatial APIPython 3.11+ / FastAPIHigh-performance service for accepting GeoJSON input and returning LibrariesGeoPandas, Shapely, GDAL/OGRData

...Integrating all screens with APIs - Replacing mock/demo data with live data - Implementing loading/error states - + FCM integration - Coordinating with frontend developer ### Admin Panel Build a simple 3-screen React admin panel: - Walker verification & approval - User/walker management - Reports & disputes queue --- ## Technology Stack - Node.js - NestJS - TypeScript - PostgreSQL + PostGIS - Prisma ORM - Redis - BullMQ - - React - Firebase - Cloudflare - Tranzila (payments) --- ## Project Details **Fixed Price:** ~$4,400 **Timeline:** 8–9 weeks **Potential:** Long-term work after MVP launch --- ## Requirements ### Must Have Experience With: - NestJS - PostgreSQL - Production backend systems - Flutter integration - Payment processing - Real-time sys...

...frontend developer handles UI. You ARE responsible for: • integrating all screens with APIs • replacing mock/demo data • loading/error states • + FCM integration • coordinating with frontend dev Admin Panel Build a simple 3-screen React admin panel: • Walker verification • User/walker management • Reports & disputes queue ⸻ Tech Stack • Node.js • NestJS • TypeScript • PostgreSQL + PostGIS • Prisma • Redis • BullMQ • • React • Firebase • Cloudflare • Tranzila ⸻ Project Details • Fixed price: ~$4,400 • Timeline: 8–9 weeks • Potential long-term work after MVP launch ⸻ Requirements Must have experience with: • NestJS • PostgreSQL • pr...

...(PDF/Excel) for auditors 8. Monitoring & Reporting Dashboard Farm overview: Total fields Certified vs non-compliant Alerts: Unauthorized input usage Missing records Activity summaries (daily/weekly/monthly) Technical Expectations Developer should propose: Recommended stack (examples): Frontend: Glide / React / Flutter Backend: Firebase / Supabase / Node.js GIS: Mapbox / Google Maps / QGIS / PostGIS Data structure design: Fields Farmers Activities Soil data Compliance logs Mobile-friendly (field use is essential) Deliverables Functional app (web + mobile-friendly) GIS mapping module (or KMZ upload system) Database structure Admin dashboard Reporting/export tools Documentation + training guidance Important Notes Preference for developers with previous agriculture or GIS ...

...offline maps, and SIM management. working in windows OS. 2. Hardware Requirements Requirement Details Device Valtrack V4 (VALTRACK-V4-VTS-ESP32-C3 4G-LTE in case) Connectivity 4G LTE + GPS (Ublox) Power 12V/24V + OBD-II Protection IP67 Programming AT Commands / Arduino 3. Software Requirements 3.1 Backend Component Technology Function Tracking Engine Traccar Receive GPS data Database PostgreSQL + PostGIS Store routes & events Maps OpenStreetMap Offline Display maps API REST Communication Language Node/Java/Python Backend logic 3.2 Frontend Dashboard Feature Description Map All vehicles in one view Status Color-coded states Popup Speed, fuel, location Alerts Overspeed, geofence Playback Route history Summary Fleet stats 3.3 SIM Management Recharge system, auto recharge, balanc...

...I need the municipal zoning boundaries digitized for several cities. For each city, I will provide the official zoning plan PDF (published by the municipality). Your job is to georeference each PDF and trace all the zoning polygons, then export the result as a GeoJSON file (CRS: EPSG:4326 / WGS84). You do not need me to provide coordinates — all cities are real, well-known municipalities in Québec and can be geolocated independently using OpenStreetMap, Google Maps, or Quebec government cadastral data. Deliverable per city: A GeoJSON file with one polygon per zone, where each polygon has two attributes: zone — the exact zone code from the map (e.g. H-308, C-125, I-405) nom — the zone category (e.g. Résidentielle, Commerciale, Industrielle, ...

...death-dates, plus the original epitaph/inscription You will start by tracing or digitising the scanned layout so every plot becomes an individual, clickable shape. Then connect those shapes to a lightweight database (CSV or SQLite is fine) that holds all the text information. A simple web front-end built with Leaflet, OpenLayers or even the Google Maps API is perfect as long as it loads quickly on desktop and mobile. Deliverables 1. Vector version of the graveyard layout (SVG, GeoJSON or similar) 2. Clean data file containing name, plot number, dates and epitaph fields for each plot 3. Responsive web page (HTML/CSS/JS) with search, zoom and detail pop-ups 4. Clear instructions so I can update the data myself later Acceptance criteria: every plot is sea...