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$120/hr
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I help founders and engineering leaders make difficult product and architecture decisions, recover stalled software initiatives, and introduce AI-assisted development without losing reliability, privacy, or human control. Complex software projects rarely struggle because nobody can write the code. More often, product priorities, architecture, delivery practices, and ownership have stopped aligning. You can bring me in to: • Review an AI product or software architecture • Diagnose a stalled MVP or troubled engineering initiative • Design reliable, human-governed AI-agent workflows • Provide fractional CTO-level technical guidance • De-risk macOS and iOS architecture or delivery • Review privacy-sensitive and local-first systems My background spans consumer products, developer infrastructure, enterprise software, and technical leadership, including work involving Calm, Snyk, Realm, CocoaPods, and Mercedes-Benz. I combine strategic and hands-on engineering experience. That means I can discuss product direction with leadership, examine the underlying systems with engineers, and translate the findings into decisions people can act on. A typical engagement begins with a focused assessment. You receive a clear written deliverable covering the current situation, material risks, recommended decisions, and prioritized next steps. When useful, I can remain involved through implementation, technical leadership, or an ongoing advisory relationship. I’m particularly well suited to situations where: • The product is technically ambitious but the path forward is unclear • Delivery has slowed and the underlying cause is disputed • An important architecture decision needs an independent second opinion • Your team wants to adopt AI-assisted development without sacrificing reliability or control • You need senior technical judgment without immediately hiring a full-time CTO If that resembles your situation, send me a short description of the product, the decision or problem you are facing, and what a successful outcome would look like.
$75/hr
$0 earned
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I'm a Senior Mobile App Developer with more than 10 years of professional software engineering experience, including senior engineering roles at Atlassian and GitLab, along with experience building healthcare technology at CareCloud. I build complete, production-ready mobile applications for iOS and Android, covering both the mobile experience and the backend systems that support it. My work includes cross-platform development with React Native and Flutter, native development with Swift and Kotlin and backend development involving APIs, databases, authentication, payments, subscriptions, notifications, third-party integrations and cloud services. My healthcare technology background gives me a strong understanding of the quality standards required for products that handle sensitive information and support critical business workflows. I understand the importance of reliability, privacy, data integrity, intuitive user experiences and maintainable architecture in healthcare software. This makes me especially well suited for patient-facing mobile apps, provider tools, appointment and scheduling platforms, healthcare SaaS products and applications that integrate with existing clinical or business systems. Whether you're building a new app or improving an existing one, I can help with everything from development and backend integration to testing, performance and release, while maintaining the security, quality and reliability expected of production software. Whether you're starting from scratch or improving an existing app, feel free to reach out. I'd be glad to learn more about your project and see how I can help.
Gregory A.
$109.47/hr
100% Job Success
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Gregory A. has worked .
A 30 year veteran software engineer, creating professional iPhone/iOS apps and bullet-proof backend servers. I build quality systems from scratch -- built to last -- and as a software entrepreneur, I can help you achieve your business goals, and dreams. "Hands down - Greg is fantastic. He was always very responsive, had a great understanding of what needed to be accomplished and made practical and appropriate recommendations. Technically he was heads above others I have hired. I will definitely hire Greg again.." -- Eric M, Zonealytics CEO I'm a senior computer scientist with deep knowledge of iPhone iOS development, back-end server design, large-scale electronic commerce systems, Web-based services, startups, medical and chemical systems. My experience in all phases of the software lifecycle -- from design, development, and QA through product release, marketing, sales, and product support -- ensures your success with professional quality design and code. "Greg vetted my project and gave me a realistic assessment on scope and deliverables -- from his years of experience! The first stage of mobile development was delivered with excellent results. Really impressed! Looking forward to working with Greg on the next phase of the project." -- Chuck Dudley, Connecticut I'm also a successful business founder with experience in recruiting and leading teams for start-ups, sales and fund raising. - Native speaker of English and US Citizen. Also proficient in French. RECENT PROJECTS in the APPLE APP STORE -------------------------------------------------------- Starboard Suite Reservations & ticketing for Passenger Vessels and Water Sports Motion Traxx Audio Workouts featuring Coaching and Music for Treadmill, Spinning, Elliptical, HIIT, and Cardio CoutureLane Social media and e-commerce app in the Style and Fashion market. Splash Pay Created custom Swift Framework to encapsulate Splash Payments' REST API and made the first iOS app to use it. NeozWorld Sports forecasting app with custom Node.js backend server. PREVIOUS PROJECTS --------------------------- - Founder and CEO of software company, Anderson-Coates. Developed a fast, lightweight rules-based product configurator that facilitated the online ordering of complex high-tech products. Recruited and led a team to develop, sell and implement the system to customers including Cisco Systems. Anderson-Coates was acquired by e-commerce startup Comergent Technologies, which is today owned by IBM. - Vice President, R&D of startup SocialNet. Managed a team of 30 managers and individual contributors producing a social networking Web site for over a million users. Had staffing, planning, and budget responsibilities for R&D, QA, and IT departments. Helped the executive team raise $16M in funding. SocialNet was acquired by MatchNet (now Spark.com). - Vice President, R&D of Network Management Startup (in stealth mode). Recruited and managed the R&D and QA teams. Designed the architecture of a Java J2EE-based application for the ordering and provisioning of MPLS VPN network services within large Internet service providers and telephone companies. - Project Manager and Consultant. R&D, QA, and IT project management and software development for multiple projects and clients, including Cisco Systems, Hewlett-Packard, Netscape/Mozilla, 3Com, Sun Microsystems, and several startup companies. Projects include: CISCO SYSTEMS Responsible for the design, implementation and testing of Cisco’s first Web-based electronic commerce system. Created an encrypted channel of communications between several Cisco e-commerce applications and Cisco’s financial partners. Developed secure protocols to transmit sensitive business data over the Internet while ensuring authentication and guaranteed message delivery and integrity. Created Web-based e-commerce tools for pricing and product configuration. Created a Web-based rules engine for complex product configuration. Developed a secure “Web reflection” system to allow outside user access to sensitive e-commerce applications behind a firewall. 3COM (now Hewlett-Packard Enterprise) Created a system for the collection of point-of-sales data from channel partners. A desktop client running on a vendor's site collects sales reports on a customizable schedule and securely transmits them to corporate HQ. Created a proprietary, world-exportable public key encryption system based on the El Gamal algorithm.
Kevin R.
$60/hr
100% Job Success
$400K+ earned
Available now
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Senior Full-Stack Developer & Architect | $400K+ Earned on Upwork | 10+ Years Building Scalable Applications If you’re looking for a complete developer who can turn complex ideas into reliable, production-ready software, you’re in the right place. I'm a solution-driven individual. I love to help clients solve their most difficult problems, and bring their ideas into life. I deliver and architect high-performance Applications, APIs, eCommerce, AI-Driven Solutions used by businesses around the world. I’ve earned over $400K on Upwork, delivering projects that are scalable, fast, maintainable, and built to last. Clients work with me because I focus on solving business problems, not just writing code. Why you should hire me: -$400k+ earned on Upwork -Proven record of long-term client relationships -Strong problem-solving and architecture skills -Clear communication and reliable delivery -Experience across multiple industries and complex systems Whether you need a new app built from scratch, help scaling an existing application, or a developer who can jump into a complex codebase and deliver results. I’m ready to move fast. My services: -Architect applications end to end -Build robust backend systems using C#, Node.js / Next.js and ASP.NET Core -Develop modern, responsive frontends using React, Angular, and TypeScript -Create scalable APIs and real-time systems using SignalR and WebSockets -Develop cross-platform mobile apps with .NET MAUI for iOS and Android -Optimize and design databases using MSSQL, MySQL, or MongoDB -Automate testing and ensure quality with NUnit, Selenium, and Cypress -Build and customize eCommerce platforms such as BigCommerce, Shopify, and Volusion -Develop Cloud Based solutions using Azure or AWS -Migrate legacy apps to modern, fast, and robust technologies -AI Assisted Development using Claude and Codex Feel free to reach out to me for project discussion!
$75/hr
100% Job Success
$3K+ earned
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Tomas N. has worked .
I build websites, web applications, and mobile apps that look great and work flawlessly - on time and without the back-and-forth headaches. Whether you need a high-converting landing page, a full SaaS dashboard, or a cross-platform mobile app, I deliver polished, production-ready products. My clients range from early-stage startups launching their first MVP to established businesses modernizing their digital presence. What I build: • Marketing websites & landing pages that convert • Web applications (dashboards, internal tools, client portals, SaaS products) • Mobile apps for iOS and Android • Full-stack solutions combining web + mobile What you get working with me: • Fast turnaround without cutting corners • Clean, responsive design that works on every device • Clear communication — no jargon, no disappearing acts • Ongoing support after launch I've delivered 20+ projects across [industries you've worked in e-commerce, SaaS, health & fitness, travel. Check out my portfolio below to see recent work. Ready to talk about your project? Send me a message with what you're building and I'll let you know how I can help.
$75/hr
100% Job Success
$100K+ earned
Available now
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Adrian T. has worked .
With over 15 years of experience as a full stack web developer, project manager, and team leader, I am adept at finding solutions to intricate problems and providing innovative results. My passion for programming and technology has driven me to work on various challenging projects, where I have sharpened my skills in multiple programming languages. Constantly looking for new web development trends, I'm always seeking new ways to improve my craft. Moreover, I have excellent leadership qualities and excel at managing teams and communicating with clients. I am recognized for my ability to simplify complex technical concepts so that non-technical stakeholders can comprehend them. My project management skills are exceptional, and I take pride in delivering projects on schedule and within budget. My primary objective is to achieve top-quality results.
Rahul C.
$75/hr
100% Job Success
$90K+ earned
Offers consultations
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I help mid-market companies automate business processes and build scalable cloud solutions using Microsoft Power Platform and Azure services. Recent projects: - Built enterprise agricultural ERP managing multi-farm operations, inventory, and dual distribution channels with real-time reporting (31+ reports) - Developed Power Apps solution for transportation/logistics with automated invoice workflows and Dynamics GP integration - Designed comprehensive authentication platform with passwordless FIDO2, multi-factor auth, and OAuth 2.0 provider capabilities - Created serverless email automation system using Azure Functions and Microsoft Graph API for real-time email processing and workflow triggers - Created Real Estate Lifecycle Management System using .NET 8, Blazor, and microservices architecture BUSINESS PROCESS AUTOMATION Power Apps (Canvas & Model-Driven), Power Automate, Dataverse, Power BI Custom workflows, approval processes, document automation CLOUD & DATA INTEGRATION Azure: Data Factory, Functions, Service Bus, API Management, Logic Apps, Databricks Data migration, ETL pipelines, microservices architecture, API development BACKEND DEVELOPMENT 24 years .NET experience: C#, .NET Core 8, ASP.NET, Web API, Entity Framework SQL Server, Oracle, MongoDB | Python, Node.js INDUSTRIES I SERVE ✓ Agriculture & Food Production (greenhouse operations, supply chain) ✓ Transportation & Logistics (fleet management, invoicing, operations) ✓ Real Estate (lifecycle management, property operations) ✓ Utilities (metering, ERP integration, power platform) ✓ Government (data migration, database optimization) WORKING WITH ME Based in Melbourne, Australia (AEST timezone) Available 30+ hours per week Fast turnaround on proposals and communication Fluent English Microsoft Certified: Azure Data Engineer, Power Platform App Maker
$60/hr
100% Job Success
$7K+ earned
Offers consultations
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I’m an Agentic AI Architect and Full Stack Developer with 10+ years of experience building AI powered products, automation systems, SaaS platforms, web apps and mobile apps. Through SeedInov, I have helped 200+ clients globally turn ideas into scalable software and AI solutions. I can help you build: • AI agents, chatbots and workflow automation • LLM integrations using OpenAI, Claude, Gemini and open source models • RAG systems, vector search and AI knowledge bases • Computer vision and image processing solutions • NLP, document processing and intelligent search tools • Generative AI features for text, image, video and business workflows • SaaS platforms, dashboards, APIs and backend systems • Custom web and mobile apps using modern full stack technologies I focus on practical AI solutions that improve operations, reduce manual work and help businesses scale. Let’s discuss your idea and build a reliable AI or software solution around your business goals.
Seedinov Technologies
Associated with
Seedinov Technologies
$7K+
earned
$125/hr
$0 earned
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Silicon Valley startup founder, CTO, senior engineer, and teacher with over 10+ years of professional experience. AI + Fullstack + iOS/Android + DB + DevOps + AWS and Cloud. Hi, my name is Elvis and I've always loved to create. I've been creating, designing, redesigning, developing, and deploying software since 2015 when I got my start as a freelancer. I've worked professionally as a fullstack web developer and designer, database manager, AWS solutions architect, DevOps engineer, consultant, teacher, and CTO. I've worked with businesses, individuals, students, and government agencies to provide the services they need to launch, learn, and grow. Whatever you need, I can find a solution for you and your company. • Consulting for your company, team, or one-on-one • Web Development, iOS / Android Development, AI Integrations & Bespoke Development • Database Management and Architecture • AWS / Azure / Cloudflare / Google Cloud migration, deployment, development, security, orchestration, and solution architecture • Graphic Design / Video Editing & Coloring / 3D Asset Design & Animation / Web Animation and Storytelling Development • Re-branding & Optimization for existing applications • Project Management, Team Leadership, Onboarding & Technical Interviewing • Tutoring and Mentorship for all levels I am available for the following: short-term and long-term contract work, part-time positions, one-off or regular consulting services, one-off or ongoing tutoring, workshop, and mentoring. Let me know what you need - I'll make it work.
$75/hr
100% Job Success
$300K+ earned
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Stanislav M. has worked .
Software developer with 20+ years experience in commercial programming. Past decade mainly in the area of Biomedical Engineering and Neuroscience. Since I spent a big part of my career on R&D jobs I had to develop a broad spectrum of skills, including development of cross-platform desktop apps (C++), mobile apps (iOS), embedded programming and electronics. Had a lead role in teams that developed dozens of software and hardware products. In addition to jobs, AI and neural networks have been my passion since high school days.