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$100/hr
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iOS & Mobile Developer 10+ years experience Summary iOS-focused mobile developer with 10+ years building and shipping production apps across iOS (Swift/SwiftUI, Objective-C), Android (Kotlin/ Java) and Flutter - owning each end-to-end, from architecture to App Store / Google Play release and maintenance. Comfortable across the stack with Node.js, Java and C# backends. Austrian citizen based in Vienna (no work permit required); fluent English and Hebrew, native Russian.
Carly C.
$100/hr
100% Job Success
Available now
Offers consultations
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Hi, I'm Carly! I'm a brand expert with niche expertise in B2B, tech, and professional services. If you're looking for a lean & efficient team with deep expertise on all topics brand, I'd love to help. ❇️ 𝐇𝐢𝐭 𝐭𝐡𝐞 "𝐌𝐞𝐬𝐬𝐚𝐠𝐞" 𝐛𝐮𝐭𝐭𝐨𝐧 𝐨𝐧 𝐦𝐲 𝐩𝐫𝐨𝐟𝐢𝐥𝐞 𝐭𝐨 𝐠𝐞𝐭 𝐚 𝐟𝐫𝐞𝐞 𝟑𝟎-𝐦𝐢𝐧𝐮𝐭𝐞 𝐛𝐫𝐚𝐧𝐝 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧. ❇️ As a Top 1% Expert Vetted Upworker with a 100% Job Success Score, I've helped 180+ brands create high-performance platforms for growth. I've worked with clients like HP, Atlassian, the European Union, Johnson & Johnson, Conservation International, and Dartmouth College to help them develop distinct and compelling go-to-market strategies. My services include: ➕LOGOS + VISUAL IDENTITY DESIGN // Logos, color palettes, and typography systems that command attention. Graphic design for packaging and marketing assets ensure cohesion and impact at every touchpoint. ➕BRAND MESSAGING & POSITIONING STRATEGY // Define your target audience with precision, chart your own unique market territory, and solidify your messaging architecture. This work leads to resonant, distinct, and human website copy, brand taglines, and campaign concepts. ➕BRANDED WEBSITES & UI/UX DESIGN // Deliver striking & conversion optimized digital experiences. Specialized in Framer and Webflow. ➕MARKET RESEARCH & COMPETITIVE INTELLIGENCE // Gain a 20/20 vision of your market opportunity through surveys, focus groups, and research interviews. Put a finger on the pulse of emerging market trends. Zero in on new segments or flag competitive gaps. ➕BRAND NAMING // Receive distinct and memorable brand names that inspire prospects of what’s possible with you. ➕ BRANDED MOBILE APPS // Build an iOS and Android app with the brand built in from the first screen, including naming, identity, UI design, and a store page written to convert. ⭐️ WHAT OTHERS HAVE TO SAY ⭐️ Here’s what others are saying about working with me as a Top 1% Upworker.👇🏻 → “This was hands down the best experience I have had with any contractor. Carly spent the time to map out deliverables, thoroughly understand my needs, and then she executed flawlessly.” → "Carly is one of the very best contractors I have worked with. She worked as a true collaborator who took my business's needs on board and delivered outstanding work product. Throughout the project, she was highly insightful, flexible, and communicative." → “I have been an entrepreneur for over 20 years and can honestly say Carly is one of the most efficient freelancers I have worked with. She is a consummate professional who clearly has mastered her craft....she was responsive, delivered according to tight deadlines and the end result was superb.” → "Carly is a remarkably talented marketing consultant. It was an absolute pleasure working with her, from discussing her innovative approach to receiving the final product, which felt like a gift. Over the years, I have hired many consultants, but none have achieved the level of precision and excellence that Carly has. She's the real deal!" → “In my years of experience working with people, Carly ranks among the top 1%. She is highly communicative, professional, responsive, and detail-oriented.” → “Carly is incredible. Everyone involved in the project was blown away by the final product. She was able to capture the essence of the brand perfectly, and demonstrated an ability to articulate that messaging at a really high level. I could not recommend her work enough.” +Keywords for Upwork search: brand strategy, brand kit, branding, brand identity design, brand visuals, brand logo design, brand colors, brand typography, brand system, corporate branding, brand naming, brand messaging, brand positioning, taglines, slogans, website design, market research, competitive intelligence, competitor analysis, sales enablement, conversion optimization, website design, brand UX, brand UI, go-to-market strategy, product branding, product naming, creative director, art director, visual identity design, brand agency, app branding, app naming, app store optimization, app UI design, mobile app branding, consumer app, mobile app design, mobile app development
$70/hr
$0 earned
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With 8+ years of full stack development experience, I help startups and growing businesses build fast, scalable, and maintainable web applications — from architecture to deployment. I specialize in end-to-end product development using React, Next.js, Node.js, and cloud platforms (AWS / GCP). Whether you need a SaaS MVP, a complex API, or a performance overhaul of an existing system, I bring both technical depth and product thinking to every project. What I bring to your project: — Clean, well-documented code that your team can own long-term — Full ownership from database design to frontend UX — Agile delivery with regular updates and zero surprises — Experience across fintech, e-commerce, healthcare, and B2B SaaS Tech I work with daily: Frontend: React, Next.js, TypeScript, Tailwind CSS Backend: Node.js, Express, NestJS, REST & GraphQL APIs Databases: PostgreSQL, MongoDB, Redis, MySQL Cloud & DevOps: AWS (EC2, S3, Lambda, RDS), Docker, CI/CD, GitHub Actions Auth & Payments: Stripe, Firebase Auth, OAuth 2.0, JWT I've shipped 50+ projects, led teams of 4–8 developers, and worked directly with founders and CTOs to turn ideas into live products. I'm available for both long-term contracts and well-scoped one-time projects. Let's talk about what you're building — I'm happy to jump on a quick call to discuss fit.
$75/hr
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I'm a Full Stack Developer with expertise in the MERN Stack, native iOS (Swift), and Android (Kotlin/Java), building scalable web and mobile applications for startups, SMEs, and enterprise organizations. Whether you need a business website, SaaS platform, e-commerce solution, enterprise application, or mobile app, I can deliver end-to-end solutions. Skilled in Mysql, Express.js, React.js, Node.js, Swift, Kotlin, Java, RESTful APIs, cloud deployment, and modern AI-assisted development tools including GitHub Copilot, Codex, ChatGPT, Claude, and Gemini. I manage projects from requirements gathering and system architecture through development, testing, deployment, and ongoing maintenance. Clear, regular communication and delivering high-quality, reliable software are central to how I work.
$80/hr
$0 earned
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I am an iOS Engineer with 6 years of experience designing and developing high-performance applications. My expertise spans multiple areas, from creating intuitive mobile interfaces to implementing complex algorithms in machine learning. I have successfully contributed to projects across various sectors, including finance and insurance, enhancing user experiences and driving engagement. I specialize in developing scalable and efficient iOS applications, leveraging the latest technologies to deliver top-notch solutions. Whether working on new features or optimizing existing functionality, I thrive on challenges and bring innovative ideas to the table. If you are looking for a skilled iOS developer who understands both technical requirements and user needs, I would love to discuss how I can contribute to your project. Let's connect to explore the possibilities!
Prexy Sam O.
$85/hr
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I am an AWS Certified Developer and Full Stack Engineer with over 5 years of experience building production-grade web, mobile, and cloud applications. As Founder and CEO of Swelerion Global Inc, I have architected and deployed multiple live platforms including a VoIP calling app on the Apple App Store, a real-time messaging platform, a global identity verification system, and a healthcare SaaS solution — all running on sovereign cloud infrastructure. My core expertise includes Node.js, React.js, PostgreSQL, REST APIs, AWS cloud architecture, iOS and Android development, and cybersecurity. I hold a Master of Science in Cybersecurity from College De Paris and a BS in Computer Science from University of the People. I deliver clean, scalable, production-ready code. I work with speed and precision — no half-built solutions. Whether you need a mobile app, a cloud backend, or a full platform built from scratch, I get it done.
$80/hr
$0 earned
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I have an experience of about 3+ years in application development. I have also created some of my own projects and applications which have turned out to be working with proficiency. I always keep on absoring knowledge and practising them to enhance my skills and abilities and provide better outcomes.
$60/hr
100% Job Success
$4K+ earned
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I'm a diligent, careful software developer with over 25 years experience in the industry. My current focus is on server-side development (Java/Spring Boot and PHP), although I've also worked with React, Angular, and Vue.js on the front-end, and built/maintained iOS and macOS apps. I've worked with dozens of clients on projects of all sizes, from fixing the last few bugs in some existing code to building a complete social media app from the ground up. I also have extensive experience configuring and integrating authentication, identity management, and CRM systems, such as setting up SAML or OAuth2 single sign-on and Salesforce with an existing customer database.
$80/hr
100% Job Success
$100K+ earned
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Zuhaib A. has worked .
Your app works. But the engineer who built it, or the AI that helped, left you with code that's getting harder to touch with every sprint. I've been building mobile apps for 12 years, across native Android, iOS, and Flutter. I've seen what good architecture looks like, and I've inherited enough bad codebases to know exactly how they got that way. A lot of the projects I take on now fall into two camps: teams who want to ship something fast and actually get it right, and teams who shipped fast and are now dealing with the fallout. On the AI side, I use it every day, and I know where it earns its keep and where it confidently writes you into a corner. I can move quickly when the problem is clear, and I'll slow down and push back when I think you're about to make it worse. Outside of client work, I build and ship my own apps. It keeps me honest. I'm not just writing code for someone else's product; I'm the one living with the decisions. You benefit from that. If your situation sounds like something I can actually help with, send me a message.
Steve M.
$100/hr
100% Job Success
$800K+ earned
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Featured on ReallyGoodEmails, my client portfolio includes brands such as Booking, Microsoft, Bloomberg, Chevron Gas, Ted Baker, IKEA, and JD Sports. ***** 60+ Five Star Reviews ***** ***** 10,000+ Hours Worked on Upwork ***** ***** 200+ Unique Clients ***** ***** 99% Client Recommendation Rate ***** I help companies build revenue generating lifecycle email systems. Over the past decade I have designed and implemented email programs for global brands, ecommerce companies, and SaaS platforms. My work focuses on turning email into a reliable revenue channel through lifecycle automation, conversion optimization, and scalable template systems. Rather than simply designing emails, I work with teams to architect end to end lifecycle infrastructure, including onboarding, retention, re engagement, and transactional messaging. What I help clients with • Lifecycle email architecture • Klaviyo automation and flow systems • Conversion focused email design and UX • High performance HTML email development • Template systems for scalable campaigns • A B testing and optimization frameworks • Deliverability and list hygiene improvements • Campaign strategy and lifecycle planning Technical expertise HTML email development with extensive cross client testing using Litmus. Custom build systems and frameworks designed to dramatically increase development speed and maintain visual consistency across large email programs. Platforms and technologies I work with include: • Klaviyo • Mailchimp • Customer lifecycle automation systems • HTML and CSS email frameworks • React based UI systems when needed for marketing infrastructure Typical projects include • Building lifecycle email programs from scratch • Auditing and optimizing existing email revenue systems • Creating scalable template systems for large marketing teams • Improving conversion and engagement through testing and UX improvements If you are looking for someone who can move beyond individual email builds and help create a scalable lifecycle revenue system, feel free to reach out.