I engineer end-to-end spatial data pipelines and custom WebGIS platforms. My focus is on high-level geospatial architecture—solving structural bottlenecks to build repeatable workflows, clean spatial databases, and practical mapping systems that operational teams can actually use.
Recent US project work includes address matching and territory planning for operational teams, public facing GIS maps for policy and exhibition use in Omaha, property and building height analysis in Los Angeles, and a browser based weather graphics platform built with MapLibre, radar layers, timeline controls, and export ready map views.
International work includes site selection analysis in Germany, parcel and location intelligence workflows, PostGIS and QGIS topology cleanup, UK air quality grid matching, raster processing, and WebGIS tools built with MapLibre, Google Maps API, AWS, and spatial databases.
I can support projects involving GIS analysis, WebGIS dashboards, PostGIS workflows, raster and remote sensing analysis, automated geospatial pipelines, and custom mapping tools.
If you need a one time analysis, a repeatable GIS workflow, or a full WebGIS prototype, I can take the project from raw data to final deliverable with a clear technical process.
GIS
ArcGIS
QGIS
PostGIS
PostgreSQL
Photogrammetry
Remote Sensing
Image Processing
Cartography
Lidar
Ege Yigit Y.
Kuyucak, Turkey
$15/hr
5.0
1 jobs
I am a bilingual Computer Science student offering English-to-Turkish and Turkish-to-English translation services.
I view freelancing as an opportunity to continuously learn and grow. When I take on a translation project, my goal isn't just to convert words, but to actively learn about the subject matter. If I encounter new concepts or specific industry terms, I take the time to carefully research them as I work to ensure my translations make sense in context.
Because my academic and personal projects involve developing mobile apps and working within Linux environments, I already have a practical foundation in software terminology.
What I can help you with:
* Software & App UI: Translating app interfaces and menus accurately.
* Technical Documentation: Helping localize guides, readmes, and tech articles.
* General Translation: Translating website text, everyday documents, and communications.
I am detail-oriented, honest about my capabilities, and highly motivated to research and learn as I work. I would be happy to help with your next project.
Translation
Turkish
English
Technical Translation
Software
Game Testing
Ismail P.
Istanbul, Turkey
$15/hr
4.9
119 jobs
Hello! I’m a Computer Engineering graduate and a mobile/backend developer focused on building clean, reliable, and user-friendly applications.
I develop mobile applications using React Native, Flutter, Swift and SwiftUI, and build backend services with FastAPI, Django and ASP.NET. I have experience with REST API development, database integration, Firebase, PostgreSQL, AI service integrations, VPS deployment, and App Store / Google Play publishing processes.
I can help you with:
• Building mobile apps from scratch
• Developing backend APIs and admin systems
• Connecting mobile apps with databases and external services
• Fixing bugs and improving existing applications
• Deploying backend services to VPS
• Preparing apps for App Store and Google Play release
Tech Stack:
Mobile: React Native, Flutter, Swift, SwiftUI
Backend: FastAPI, Django, ASP.NET
Database: PostgreSQL, Firebase
Tools: Git, Docker, Figma, REST APIs
I learn new technologies quickly and focus on turning projects into real products that users can actually use.
Python
Automation
Web Crawling
Data Scraping
Data Mining
Selenium
Python Script
Web Scraping
Lead Generation
Data Preprocessing
Zaid M.
Istanbul, Turkey
$28/hr
5.0
60 jobs
FREE technical consultation (details below) 🐻 Proud Comsats graduate (Software Enginnering) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below).
I help entrepreneurs, startups, and businesses turn ideas into fully launched products. Whether you need a mobile app on iOS and Android, a scalable web application, or both, I handle everything from initial design to App Store and Play Store deployment.
With 7+ years of experience in Full Stack JavaScript/TypeScript and React Native development, I build production ready applications that scale, perform seamlessly, and deliver exceptional user experiences.
What I Build ?
Mobile Apps:
Cross platform iOS and Android apps with React Native, Expo, push notifications, offline sync, in app purchases, real time features, payment integrations, and complete App Store and Play Store publishing.
Web Applications:
High performance web apps with React, Next.js, Node.js, server side rendering (SSR), static site generation (SSG), responsive design, SEO optimization, and Progressive Web Apps (PWA).
AI Powered Solutions:
Integration of OpenAI, Claude, Gemini APIs for chatbots, content generation, image creation, speech recognition, natural language processing, and intelligent automation.
Tech Stack:
Frontend: React, Next.js, React Native, TypeScript, TailwindCSS, Material UI, Shadcn UI, Redux, Zustand, React Query
Backend:
Node.js, Express, NestJS, Fastify, GraphQL, Socket io, JWT authentication
Mobile:
Expo, React Navigation, push notifications, biometric auth, deep linking, native modules
AI Integration: OpenAI GPT 4, Claude API, Gemini, LangChain, vector databases, RAG systems
Databases:
PostgreSQL, MongoDB, MySQL, Firebase, Supabase, Redis, Prisma, TypeORM
I deliver end to end solutions from wireframes to deployment, ensuring your product is scalable, secure, and ready for users. Let me help you build and launch your next successful product.
𝗦𝗲𝗮𝗿𝗰𝗵 𝗺𝗲 𝘂𝘀𝗶𝗻𝗴 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀:
Mobile App Developer, React Native, Swift, Android Development, IOS App development, SaaS Developer, Full Stack SaaS Developer, SaaS Application Developer, SAAS Only, SAAS Development, React Developer, Next.js Developer, JavaScript Developer, TypeScript Developer, Node.js Developer, SaaS Architect, Startup MVP Developer, Software Engineer, Web Application Developer, Product Developer, CRM Developer, ERP Developer, Dashboard Developer, Multi-Tenant SaaS Developer, Subscription Platform Developer, Stripe Integration Expert, API Integration Developer, AI SaaS Developer, Cloud Application Developer, B2B SaaS Developer, SaaS Product Engineer, Full Stack Engineer.
React Native
React
TypeScript
JavaScript
CSS
Node.js
Web Development
Mobile App Development
Next.js
Mobile App Improvement
iOS
Supabase
AI Bot
iOS Development
Android App Development
Tailwind CSS
Google Maps
Database Architecture
Claude
AI Development
Ali Umut A.
Izmir, Turkey
$20/hr
5.0
6 jobs
I’m a Native Mobile Developer with over 4 years of experience building iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose) apps from scratch and improving existing codebases.
I work with startups and businesses to deliver reliable, scalable mobile apps built natively, with clean UX and long-term maintainability in mind.
Core Skills
Swift · SwiftUI · Kotlin · Jetpack Compose · REST APIs · Firebase · Superwall · MapKit · Google Maps SDK · Push Notifications · AdMob · In-App Purchases · Payments (Stripe / Iyzico) · App Store Connect & Play Console
What I Do
• End-to-end mobile app development (UI, business logic, backend integration, App Store Connect & Play Store submission)
• Building new apps from scratch and refactoring, fixing, or extending existing applications
• Clean, maintainable MVVM architecture
• Handling App Store review issues, rejections, and resubmissions
• Post-launch support, feature improvements, and performance optimization
Smartphone
App Development
iOS
iOS Development
Mobile App
Android App Development
Swift
SwiftUI
Kotlin
Firebase
In-App Purchases
Artificial Intelligence
Native App Development
App Store
Apple Xcode
Hatice Kubra T.
Istanbul, Turkey
$20/hr
5.0
1 jobs
Software developer with 10+ years of experience, currently focused on Full Stack development, iOS development, Python, and AI-driven applications.
I design/develope and build scalable mobile apps, Python based Windows/Mac desktop apps, backend APIs, and AI integrations using modern architectures and clean code practices.
Clear communication and reliable delivery are at the core of my work.
Next.js
TypeScript
Node.js
Ethers.js
PostgreSQL
Tailwind UI
iOS Development
SwiftUI
Python
AI App Development
OpenAI API
Docker
SQL
Redis
n8n
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
KD
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
DM
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
KK
Katja Krohn
Summa Linguae
How do I hire a Mobile Freelancer in Turkey on Upwork?
You can hire a Mobile Freelancer in Turkey on Upwork in four simple steps:
Create a job post tailored to your Mobile Freelancer project scope. We'll walk you through the process step by step.
Browse top Mobile Freelancer talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Mobile Freelancer profiles and interview.
Hire the right Mobile Freelancer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Mobile Freelancer?
Rates charged by Mobile Freelancers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Mobile Freelancer in Turkey on Upwork?
As the world's work marketplace, we connect highly-skilled freelance Mobile Freelancers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Mobile Freelancer team you need to succeed.
Can I hire a Mobile Freelancer in Turkey within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Mobile Freelancer proposals within 24 hours of posting a job description.