Browse Freelancers

Andreas Märki

 Zurich, Switzerland

Expert in: Swift, iBeacon

As a senior iOS developer with 10 years of experience, I specialize in building high-quality mobile applications for retail and ecommerce. I've contributed to B2B and B2C platforms, including kkiosk and avec 24/7, using Swift, SwiftUI, and UIKit to deliver polished, reliable apps. I thrive in agile teams and guide projects from conception to App Store publication, consistently delivering innovative solutions in the e-commerce, social media, and news media spaces.…As a senior iOS developer with 10 years of experience, I specialize in building high-quality mobile applications for retail and ecommerce. I've contributed to B2B and B2C platforms, including kkiosk and avec 24/7, using Swift, SwiftUI, and UIKit to deliver polished, reliable apps. I thrive in agile teams and guide projects from conception to App Store publication, consistently delivering innovative solutions in the e-commerce, social media, and news media spaces.

App DesignerFull Stack DeveloperWeb Developer

App DesignerFull Stack DeveloperWeb Developer

 Milton Keynes, United Kingdom

Expert in: Swift, GraphQL, Objective-C

I am a Senior iOS Consultant with over 7 years of experience delivering and supporting large-scale enterprise mobile apps in Banking and Healthcare across US clients. I specialize in modernizing legacy apps from Objective-C to modular MVVM architectures using Swift 5.x, SwiftUI, Combine, GraphQL/REST, and Async/Await. I excel at building secure authentication flows, optimizing performance, ensuring accessibility, and maintaining production reliability for apps used by millions. I collaborate with product, backend, and SRE teams to ensure scalability and security compliance, and I am comfortable working in CI/CD driven Agile environments, handling incidents, and delivering App Store releases.…I am a Senior iOS Consultant with over 7 years of experience delivering and supporting large-scale enterprise mobile apps in Banking and Healthcare across US clients. I specialize in modernizing legacy apps from Objective-C to modular MVVM architectures using Swift 5.x, SwiftUI, Combine, GraphQL/REST, and Async/Await. I excel at building secure authentication flows, optimizing performance, ensuring accessibility, and maintaining production reliability for apps used by millions. I collaborate with product, backend, and SRE teams to ensure scalability and security compliance, and I am comfortable working in CI/CD driven Agile environments, handling incidents, and delivering App Store releases.

No roles

Expert in: Swift, React Native, JavaScript + 12 more

I am Igor Jovchevski, a Senior Software Engineer and Solution Architect with over a decade of experience delivering high-impact, cross‑platform solutions across mobile, web, and backend systems. I thrive at the intersection of hands-on coding and scalable system design, with a strong focus on architecture, performance, and reliability. My work spans fintech, sports tech, media, and embedded wallets, leveraging Swift, React Native, C++, Node.js, Golang, Python, and CUDA to build fast, robust platforms. I enjoy leading architecture, building critical paths, and mentoring engineers. Highlights include building reusable wallet SDKs for global clients like Xsolla, delivering production apps for world-class football clubs, and creating GPU-accelerated video synchronization tools. I bridge mobile, web, and backend teams to deliver end-to-end platforms that scale.…I am Igor Jovchevski, a Senior Software Engineer and Solution Architect with over a decade of experience delivering high-impact, cross‑platform solutions across mobile, web, and backend systems. I thrive at the intersection of hands-on coding and scalable system design, with a strong focus on architecture, performance, and reliability. My work spans fintech, sports tech, media, and embedded wallets, leveraging Swift, React Native, C++, Node.js, Golang, Python, and CUDA to build fast, robust platforms. I enjoy leading architecture, building critical paths, and mentoring engineers. Highlights include building reusable wallet SDKs for global clients like Xsolla, delivering production apps for world-class football clubs, and creating GPU-accelerated video synchronization tools. I bridge mobile, web, and backend teams to deliver end-to-end platforms that scale.

UGC CreatorContent CreatorActor

Jill Stabeno

UGC CreatorContent CreatorActor

 Boston, United States

Expert in: Video Advert, iBeacon, Tiktok + 12 more

I'm Jill Stabeno, a Gen X UGC creator with 18+ years as a professional figure skater and coach, ex-model, and seasoned travel agent. I blend performance, aesthetics, and traveler psychology to craft UGC that feels real, relational, and sales-aware. I offer talking-to-camera UGC, travel, hospitality and destination content with real agent insight, beauty and lifestyle content for women 40+, pet UGC featuring my 2-year-old lab Arlo, and tech-friendly workflows with short-form editing, hooks, and variations ready for TikTok, Reels, YouTube Shorts and ads.…I'm Jill Stabeno, a Gen X UGC creator with 18+ years as a professional figure skater and coach, ex-model, and seasoned travel agent. I blend performance, aesthetics, and traveler psychology to craft UGC that feels real, relational, and sales-aware. I offer talking-to-camera UGC, travel, hospitality and destination content with real agent insight, beauty and lifestyle content for women 40+, pet UGC featuring my 2-year-old lab Arlo, and tech-friendly workflows with short-form editing, hooks, and variations ready for TikTok, Reels, YouTube Shorts and ads.

App DeveloperWeb DeveloperFront-End Developer

Daniel Gump

 Columbus, United States

App DeveloperWeb DeveloperFront-End Developer

Expert in: iOS, Swift, JavaScript + 8 more

Hello, I’m Daniel Gump, a senior software engineer with 20+ years of experience designing and building cross‑platform mobile apps and web solutions across iOS/macOS and scalable LAMP stacks. I specialize in mobile development, cross‑platform engineering, and backend architecture, with a passion for ML, NLP, voice recognition, computer vision, and depth-map analysis. I thrive on delivering customer‑centric products, improving platform intelligence, and driving experimentation‑led innovation, while keeping codebases clean, well‑tested, and well‑documented. I’m excited to contribute leadership and hands‑on technical excellence to impactful technology initiatives.…Hello, I’m Daniel Gump, a senior software engineer with 20+ years of experience designing and building cross‑platform mobile apps and web solutions across iOS/macOS and scalable LAMP stacks. I specialize in mobile development, cross‑platform engineering, and backend architecture, with a passion for ML, NLP, voice recognition, computer vision, and depth-map analysis. I thrive on delivering customer‑centric products, improving platform intelligence, and driving experimentation‑led innovation, while keeping codebases clean, well‑tested, and well‑documented. I’m excited to contribute leadership and hands‑on technical excellence to impactful technology initiatives.

Game DeveloperProgrammer

Pham Thanh Dat

 Ho Chi Minh City, Vietnam

Game DeveloperProgrammer

Expert in: Unity 3D, C#, Android + 5 more

I’m a Unity developer with a lifelong passion for gaming. Since 2014 I’ve been building games with Unity, contributing to projects from concept to release on the App Store and Google Play. I thrive on turning ideas into engaging gameplay, robust architectures, and polished user experiences. I enjoy collaborating with QA, design, and creative teams to bring stories to life and deliver high-quality results. I’m also a developer who loves mentoring newer teammates, sharing knowledge, and continually learning new tools and techniques to push Unity-based projects to the next level.…I’m a Unity developer with a lifelong passion for gaming. Since 2014 I’ve been building games with Unity, contributing to projects from concept to release on the App Store and Google Play. I thrive on turning ideas into engaging gameplay, robust architectures, and polished user experiences. I enjoy collaborating with QA, design, and creative teams to bring stories to life and deliver high-quality results. I’m also a developer who loves mentoring newer teammates, sharing knowledge, and continually learning new tools and techniques to push Unity-based projects to the next level.

App DeveloperFront-End DeveloperFull Stack Developer

App DeveloperFront-End DeveloperFull Stack Developer

Expert in: Swift, Objective-C, TensorFlow + 1 more

Hi, I’m Uzma Abidi, an iOS developer and senior software engineer with 5+ years of experience delivering mobile apps for banking, consumer, and government sectors. I specialize in real-time messaging, QR code payments, secure transactions, and performance optimization to create smooth, reliable user experiences. I thrive in Agile teams, lead code reviews, design scalable architectures (MVC, MVVM, VIPER), and collaborate across disciplines to drive robust, secure, and user-friendly mobile solutions. I also explore AI-powered features and security enhancements to contribute to business growth and product excellence.…Hi, I’m Uzma Abidi, an iOS developer and senior software engineer with 5+ years of experience delivering mobile apps for banking, consumer, and government sectors. I specialize in real-time messaging, QR code payments, secure transactions, and performance optimization to create smooth, reliable user experiences. I thrive in Agile teams, lead code reviews, design scalable architectures (MVC, MVVM, VIPER), and collaborate across disciplines to drive robust, secure, and user-friendly mobile solutions. I also explore AI-powered features and security enhancements to contribute to business growth and product excellence.

DeveloperApp DeveloperWeb Developer

DeveloperApp DeveloperWeb Developer

Expert in: Flutter, Dart, Google Maps + 2 more

I am a passionate Full stack Flutter Developer with over 3+ years of experience in building high-performance mobile applications. I thrive on tackling complex features and collaborating with cross-functional teams to create seamless user experiences. My commitment to learning and adapting ensures I stay ahead in this fast-evolving tech landscape.…

App DeveloperDesignerDeveloper

App DeveloperDesignerDeveloper

Expert in: Swift, Objective-C, GraphQL + 4 more

Senior iOS Developer with 10+ years of experience architecting and implementing high-quality, scalable mobile features with a focus on performance and user experience. Proven expertise in optimizing launch time, memory usage, and responsiveness while maintaining clean, reusable codebases (MVVM, VIPER, Clean Swift). Adept at collaborating cross-functionally with designers and engineers to deliver pixel-perfect UI and drive engineering best practices across teams.…Senior iOS Developer with 10+ years of experience architecting and implementing high-quality, scalable mobile features with a focus on performance and user experience. Proven expertise in optimizing launch time, memory usage, and responsiveness while maintaining clean, reusable codebases (MVVM, VIPER, Clean Swift). Adept at collaborating cross-functionally with designers and engineers to deliver pixel-perfect UI and drive engineering best practices across teams.

Web DeveloperWeb DesignerMarketing Automation Specialist

Web DeveloperWeb DesignerMarketing Automation Specialist

Expert in: Duda, Figma, iBeacon + 8 more

I’m a passionate Web Developer who enjoys turning ideas into responsive, user-friendly websites. I specialize in creating clean designs, smooth functionality, and strong online experiences that help businesses grow. I’m always learning new technologies and love collaborating on projects that bring creativity and code together.…

App DeveloperProgrammerProject Manager

App DeveloperProgrammerProject Manager

Expert in: iOS, Swift, Objective-C + 5 more

I am a Senior Tech Lead specializing in iOS and Flutter development with over 14 years of experience in the IT industry, working on various phases including analysis, design, development, performance testing, and management. I have worked across multiple domains such as Insurance, Man-log, and Transportation, and have proficiency in OOPS, design and architecture patterns including MVC, MVVM, MVP, as well as Agile methodologies like Scrum. I have extensive experience in IoT applications involving GPS, GIS, Beacons, Indoor Navigation, and BLE. I am skilled in Apple technologies such as iOS, Apple Watch, AppleTV, and ARKit, as well as cross-platform and web technologies. I have led teams in onsite and offshore settings, mentoring team members and coordinating closely with QA and business analysis to deliver high-quality applications.…I am a Senior Tech Lead specializing in iOS and Flutter development with over 14 years of experience in the IT industry, working on various phases including analysis, design, development, performance testing, and management. I have worked across multiple domains such as Insurance, Man-log, and Transportation, and have proficiency in OOPS, design and architecture patterns including MVC, MVVM, MVP, as well as Agile methodologies like Scrum. I have extensive experience in IoT applications involving GPS, GIS, Beacons, Indoor Navigation, and BLE. I am skilled in Apple technologies such as iOS, Apple Watch, AppleTV, and ARKit, as well as cross-platform and web technologies. I have led teams in onsite and offshore settings, mentoring team members and coordinating closely with QA and business analysis to deliver high-quality applications.

Hans Gérard David Rietmann

App Developer

 Zurich, Switzerland

App Developer

Expert in: Swift, GitHub, iOS + 12 more

Pixel perfect iOS Engineer since 2016 looking for a new challenge.…

ArchitectApp DeveloperAI Prompt Engineer

Pascal Bourguignon C

 Tavernes de la Valldigna, Spain

ArchitectApp DeveloperAI Prompt Engineer

Expert in: C, C++, iOS + 18 more

Hello, I’m Pascal Bourguignon, a versatile software engineer and systems architect with extensive experience across macOS/iOS, Linux, embedded systems, and cloud-based development. I enjoy turning complex requirements into robust architectures, leading cross-disciplinary teams, and delivering high-quality software across hardware and software stacks. I thrive in Agile environments, continuously optimize development processes, and mentor colleagues to raise engineering practices. Fluent in French, English, and Spanish, I have worked on projects ranging from RTOS and driver development to AI-informed video workflows, UI/UX improvements, and cross-platform applications. I’m driven by solving challenging technical problems, delivering practical results, and collaborating with customers and teammates to achieve impactful outcomes.…Hello, I’m Pascal Bourguignon, a versatile software engineer and systems architect with extensive experience across macOS/iOS, Linux, embedded systems, and cloud-based development. I enjoy turning complex requirements into robust architectures, leading cross-disciplinary teams, and delivering high-quality software across hardware and software stacks. I thrive in Agile environments, continuously optimize development processes, and mentor colleagues to raise engineering practices. Fluent in French, English, and Spanish, I have worked on projects ranging from RTOS and driver development to AI-informed video workflows, UI/UX improvements, and cross-platform applications. I’m driven by solving challenging technical problems, delivering practical results, and collaborating with customers and teammates to achieve impactful outcomes.

App DeveloperWeb DeveloperProgrammer

App DeveloperWeb DeveloperProgrammer

Expert in: iOS, Swift, Objective-C + 3 more

I'm Angel Vasa, a passionate iOS Practice Lead with 12+ years of experience building, shipping, and maintaining mobile apps for global brands. I thrive on delivering tailor-made solutions for complex banking and enterprise needs, and I love turning cutting-edge tech into real-world user value. My work blends deep technical expertise with collaborative leadership — I mentor teams, drive modular architecture, and ensure robust CI/CD, analytics, and localization to help our clients move faster and with confidence.…I'm Angel Vasa, a passionate iOS Practice Lead with 12+ years of experience building, shipping, and maintaining mobile apps for global brands. I thrive on delivering tailor-made solutions for complex banking and enterprise needs, and I love turning cutting-edge tech into real-world user value. My work blends deep technical expertise with collaborative leadership — I mentor teams, drive modular architecture, and ensure robust CI/CD, analytics, and localization to help our clients move faster and with confidence.

Bhargav Jani

 Ahmedabad, Ranip, India

Expert in: Flutter, Dart, Android + 6 more

I'm Bhargav Jani, a Senior Mobile App Developer based in Ahmedabad, India, with 7+ years of experience crafting high-performance Flutter, Android, and IoT-integrated applications. I enjoy architecting clean, scalable solutions for fintech, IoT, and streaming domains, with a track record of reducing crash rates, speeding up load times, and boosting user retention. I lead teams, integrate payment gateways and BLE, and implement CI/CD pipelines to deliver robust apps.\n\nIn addition to coding, I mentor junior developers, review code, and collaborate with cross-functional teams to drive product success. I'm passionate about user-centric design, security, and performance, and I thrive in fast-paced environments where curiosity and collaboration fuel innovation.…I'm Bhargav Jani, a Senior Mobile App Developer based in Ahmedabad, India, with 7+ years of experience crafting high-performance Flutter, Android, and IoT-integrated applications. I enjoy architecting clean, scalable solutions for fintech, IoT, and streaming domains, with a track record of reducing crash rates, speeding up load times, and boosting user retention. I lead teams, integrate payment gateways and BLE, and implement CI/CD pipelines to deliver robust apps.\n\nIn addition to coding, I mentor junior developers, review code, and collaborate with cross-functional teams to drive product success. I'm passionate about user-centric design, security, and performance, and I thrive in fast-paced environments where curiosity and collaboration fuel innovation.