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$100/hr
100%
Job Success
$60K+ earned
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I build automations that replace 20+ hours of manual work per week—connecting your CRM, sales tools, and operations into workflows that run themselves.
As a Core Contributor to Shakey OS (Mobile AI Framework), I operate at the intersection of deep technical engineering and practical business application. While most automation "experts" rely solely on no-code tools, I bridge the gap by building custom middleware, API integrations, and LLM-powered agents that standard tools can’t handle.
🚀 Why Multi-Million Dollar Brands Work With Me:
Enterprise-Grade Scale: I’ve architected systems for high-revenue companies that require 99.9% uptime and secure data handling.
The Shakey OS Advantage: My deep involvement in AI framework development means I understand the "black box" of LLMs, allowing me to optimize for accuracy and cost-efficiency.
Custom Software Roots: If a tool like n8n or Make hits a limit, I write the custom Python or Node.js code to break through it.
🛠 Core Capabilities:
AI Agent Workflows: Designing RAG-based (Retrieval-Augmented Generation) systems that actually understand your company's data.
End-to-End Automation: Full-scale orchestration using n8n, Make, and Zapier integrated with custom SQL databases.
Custom SaaS Development: Building the "connective tissue" between your existing ERP/CRM and modern AI models (GPT-o1, Claude 3.5, Gemini).
API Architecture: Designing robust, scalable APIs that allow your legacy systems to talk to the future.
My process: We start with a 15-minute call to map your current workflow. I identify the highest-ROI automation opportunities, build a working prototype within days, and iterate until it runs flawlessly.
If you're losing hours to repetitive tasks or your team is stuck copying data between tools, let's fix that.
$70/hr
$7K+ earned
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Staff-level iOS engineer with 10 years of experience building apps used by millions. I specialize in Swift, SwiftUI, and scaling mobile infrastructure — from monorepo migrations to CI pipelines that cut build times by 98%.
Recent highlights:
- Migrated 20+ brand apps from Buck to Bazel, reducing CI from 50 minutes to 90 seconds
- Consolidated 40+ repos into a single monorepo serving 20+ ecommerce merchant apps
- Built features that reduced customer service calls by 92% and increased transactions by 25%
- Led AI adoption across engineering, design, and product teams
I've shipped production iOS apps across e-commerce (Marktplaats, NICE ONE, NewStore), media (BleacherReport), fintech (PASS APP), and consumer products. Comfortable leading architecture decisions while staying hands-on 80% of the time.
Based in Cairo. Available for iOS development, architecture consulting, and building infrastructure work.
Associated with
IBoutlet
$3K+
earned
United States
$80/hr
$0 earned
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20 year track record releasing commercial bug free software which entertained billions of players and saved lives in medical apps.
A firefighter regularly called upon to right the ship when projects have gotten off track.
Scientist turned self taught programmer who has continuously learned new languages, and platforms for 20 years.
The team oriented, professional creative, who relishes working with artists, designers and product owners.
An expert bug Fixer, who has fixed many bugs that other engineers failed to resolve.
$60/hr
$300+ earned
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I help startups and product teams build and ship AI-enabled mobile apps that are production-ready, not just demos.
I’m a Senior mobile engineer with 11+ years of experience across iOS, Android, AI/CV, AR, and backend-integrated products. I work hands-on from architecture to release, and I focus on clean delivery, performance, and business outcomes.
What I can help you with:
- iOS development (Swift, SwiftUI, UIKit) and cross-platform mobile architecture
- LLM integrations (OpenAI, Gemini), assistant-style UX, multimodal AI features
- Computer vision and AR workflows (Vision, CoreML, ARKit)
- Backend/API integration (AWS, Firebase, Supabase, GraphQL)
- CI/CD, release stabilization, crash/performance optimization
- Refactoring legacy codebases into scalable, maintainable systems
Recent experience includes AI-powered browser features at Yahoo, CTO-level product delivery at Sidequest, and leading mobile/CV teams at Datasya for investor-facing milestones.
If you need someone who can own both technical execution and product impact, I can help.
Turkmenistan
$125/hr
$700K+ earned
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Experienced mobile developer specializing in React Native with over 14 years of programming
experience. BSc in Computer Science.
Skilled in various languages including Obj-C, Java, and C++. Currently exploring the advanced
capabilities of React Native beyond just JavaScript, particularly focusing on New Architecture,
Fabric Renderer, JSI, and Turbo Modules at the Native Layer.
Nazim G.
has worked
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$65/hr
$100 earned
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I am a German freelance iOS developer with over 6 years of professional experience, particularly passionate about developing apps that provide genuine societal value. My strength lies in finding pragmatic solutions and navigating complex technical situations effectively.
Throughout my career, I've had the opportunity to significantly contribute to the development and launch of "REWE Bonus" for the REWE iOS app at REWE digital, which is now used by millions of users. Additionally, as part of a dedicated startup team at OC Food Solutions GmbH, I helped develop an innovative MVP for local food products for both iOS and Android. Personally, I've been working for over three years on iana, a creative iOS and iPadOS app that provides Apple Music users new ways to explore their music library.
My technical focus is on iOS development (Swift, SwiftUI & UIKit, Combine). I also have valuable experience in cross-platform development (Flutter & Dart, Android & Kotlin), as well as solid backend experience (C#/.NET, Serverless frameworks, TypeScript) and complementary frontend knowledge (Angular, SvelteKit). I invest considerable time in my professional and personal growth.
My colleagues appreciate my open, direct and transparent communication and my absolute reliability.
In 2025, I intentionally chose greater freedom and flexibility by becoming self-employed, combining my professional activities with an exciting journey around the world. Currently, I live and work from Southeast Asia.
Sounds like a fit? Then let's work together!
$95/hr
Available now
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I modernize legacy systems and build custom software for manufacturers.
Most manufacturers I work with are running critical operations on software that's aging out: VB6 or Delphi applications nobody maintains, Microsoft Access databases held together by one person's spreadsheet macros, AS/400 systems from a vendor that no longer exists. Alongside that, there's usually a second problem: disconnected tools, manual workarounds, and data that doesn't move between systems.
I solve both. I modernize the legacy systems your operation depends on, and build the automation and integration layer that connects everything else.
If any of these sound familiar, we should talk:
- Your core system runs on VB6, Delphi, Microsoft Access, FoxPro, or another platform nobody supports anymore
- The original developer is gone and nobody can safely touch the code
- Your ERP or WMS doesn't reach the floor or the field
- Data lives in multiple systems with no single source of truth
- Scheduling still runs on spreadsheets or whiteboards
- Operators are working around the system instead of through it
Before founding Denovo Studios, I worked in manufacturing engineering: process optimization, continuous improvement, operational flow. I don't lead with technology, and I don't default to a full rewrite. I start with what the current system actually does, then modernize it without disrupting the operation that depends on it.
Top-Rated on Upwork | Rated 4.9/5 on Clutch
Clutch: Top App Modernization Service (Detroit 2025) & Top App Development Company (Manufacturing, US 2025)
Selected Outcomes
Scheduling optimization (fabrication): Cut slot-finding from ~4 min to ~25 sec, saving 2,000+ hours per year.
Industrial field ops: Offline inventory app with barcode/QR and Zebra support for fewer errors, faster audits, no connectivity dependency.
ERP/WMS integration: Mobile extensions that give floor and field teams real-time data without touching the core system.
What I Build for Manufacturers
Legacy System Modernization: Migrate VB6, Delphi, Microsoft Access, AS/400, and FoxPro applications to modern, supportable platforms without losing the business logic your team depends on.
Workflow Automation: Digitize approvals, notifications, and data entry so your team focuses on work that matters.
Process Digitization: Replace paper-based workflows with reliable, auditable digital systems.
Field & Floor Operations: Offline-first apps, barcode/QR scanning, photo capture, sign-offs, Zebra device support.
Scheduling & Routing: Optimization tools that reduce manual coordination and improve throughput.
ERP & Internal System Development: Build or migrate the core system itself. From ground-up internal platforms to full migrations off legacy ERPs, when the system needs to be replaced, not just connected to.
ERP/WMS Extensions: Mobile interfaces that meet operators where they work.
Inspections & Compliance: Audit tools, checklists, and reporting built around your actual process.
AI & Vision: OCR, document processing, computer vision for quality and data entry.
Dashboards & Reporting: KPI tracking and real-time analytics for operations teams.
Integrations
Legacy platforms (VB6, Delphi, Microsoft Access, AS/400, FoxPro) - ERP/WMS via API (SAP, Oracle, Epicor, Infor, NetSuite, Dynamics 365) - MES - SCADA/IoT - Firebase/AWS/Azure - SSO/AD B2C
Client Testimonials
"The team is able to speak intelligently about what they're going to do and what potential issues would be. I've had a lot of contractors just nod their heads, without knowing what I'm asking for, and do whatever they want. Denovo Studios really took the time to understand what I was looking for."
Sam Borick - Virginia Transportation Corporation
"Successful deployment of projects into our production environment within desired timeframe and budget."
Jeff Rogers - Countertop Fabrication and Installation Company
"Denovo Studios tackles requests very proactively. Their ability to outline all the steps needed to complete the project has been a valuable asset. Despite being a service provider, they feel like part of the internal team."
Steven Strohl - Unrapp
"Andy was highly responsive, very knowledgeable, and easy to work with, coupled with a deep understanding of the problem we were facing. We would highly recommend them and use their services again when needed."
Noah DiCenso - Innovasystems International LLC
How I Work
Process and code audit, then scoped discovery and design, then iterative releases
Maintainable code, documentation, and ongoing support plans available
Small senior team: design, backend, DevOps, QA, without agency overhead
Best Fit
I work best with manufacturers, fabricators, logistics operations, and operationally complex organizations running on outdated or unsupported software, or juggling disconnected systems, who want software built around how work actually gets done, starting with the process, not the technology.
If that sounds like your situation, let's talk.
$500/hr
100%
Job Success
$800K+ earned
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I can take your best idea and turn it into an app on the Apple App Store and Google Play Store, or build that feature that your users have been asking for for months. I can built iOS apps using the latest technology (Swift, SwiftUI, Combine) or cross platform apps using Typescript and React Native.
I have 10+ years of experience developing with Swift. I specialize in building realtime data driven iOS apps, building amazing UI/UX (with user focused design and awesome animations), as well as advanced architecture design.
Interested in building apps for Apple's new Vision Pro? With my extensive background in Apple technology, I have experience with all of the libraries and technologies required to build apps for visionOS / xrOS including RealityKit, ARKit, SwiftUI and many more. I can turn your existing iOS app into a spacial experience ready for visionOS, or I can build you a new app from the ground up designed for the Vision Pro. If you can imagine it, I can build it.
Are you looking to bring NFTs and crypto features into your mobile app? I believe web3 is the future and we need better apps for users. I specialize in web3 integrations for mobile apps. Whether it's supporting NFTs, crypto payments, digital signatures and proof of ownership, or simply consulting you on what is possible, I am here to help.
App Security is a strength of mine, as I have years of jailbreaking experience. I know how to protect your apps against runtime code injection, Objective-C runtime method swizzling, Man-in-the-middle attacks, as well as jailbreak detection.
I'd love to hear about your project! Send me a message and let's talk about it.
Jeshurun R.
has worked
.
$100/hr
100%
Job Success
Available now
Offers consultations
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🏆 Expert-Vetted
🎯%100 Job Succession
⚙️10+ years of extensive experience in all phases of the software development life cycle with unlimited coding skills.
Excellent interpersonal skills and a specialty in translating technical concepts to non-technical clients. A strong ability to work independently and proactively, finishing projects on time and within budget.
🧠A great problem solver
I have experience in the following technologies :
✅Angular
✅React
✅Vue
✅Node.js
✅Parse Server (Open Source Contributor)
✅PHP
✅Swift
✅Kotlin
✅Ionic
✅React Native
✅Solidity
✅Candy Machine (Metaplex-Solana)
I am always seeking long-lasting relationships, if you do also let's work together! 🤝🏻
Suat K.
has worked
.
$75/hr
$2K+ earned
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Senior iOS Developer | Swift | SwiftUI | Xcode | Firebase | JavaScript
🚀 Helping Businesses, Startups, and Nonprofits Build Scalable, High-Performing iOS Apps
Are you looking for a reliable Senior iOS Developer who can turn your app idea into reality? With over 5+ years of experience and 10+ iOS apps successfully built for businesses, startups, and nonprofits, I specialize in crafting user-friendly, scalable, and high-performance applications.
What I Offer:
✅ Custom iOS App Development – From idea to App Store deployment
✅ Swift & SwiftUI Development – Building modern, clean, and responsive apps
✅ Firebase Integration – Real-time database, push notifications, authentication
✅ API Development & Integration – Seamless third-party service integrations
✅ UI/UX Optimization – Ensuring intuitive design and smooth user experience
✅ Bug Fixing & Maintenance – Keeping your app secure and up-to-date
✅ App Store Submission & Compliance – Ensuring smooth approval on the App Store
My Tech Stack:
• Languages: Swift, SwiftUI, JavaScript
• Frameworks: UIKit, Combine, Core Data
• Databases: Firebase Firestore, Core Data, SQLite
• Tools: Xcode, Git, Fastlane, TestFlight
• Third-Party APIs: Stripe, Google Maps, Twilio, OpenAI, and more
Highlighted Projects:
🔹 E-Commerce App for a Retail Brand
📌 A full-featured shopping app with cart management, Apple Pay integration, and real-time inventory sync.
🔹 Social Networking App for a Startup
📌 Developed an interactive app with messaging, push notifications, and AI-powered recommendations.
🔹 Fundraising & Donation Platform for a Nonprofit
📌 Built an easy-to-use donation app with secure payments, donor tracking, and live campaign updates.
🔹 On-Demand Service Booking App
📌 Designed and built a booking system with real-time availability and in-app payments.
🔹 Health & Wellness App with Fitness Tracking
📌 Integrated Apple HealthKit for step counting, heart rate monitoring, and workout tracking.
Why Choose Me?
✅ Proven Track Record – 10+ apps built, 5-star client reviews
✅ Business-Oriented Approach – I focus on delivering value, not just code
✅ 100% Client Satisfaction – I go the extra mile to ensure success
✅ Effective Communication – Always transparent and responsive
📩 Let’s Build Something Amazing Together!
Ready to discuss your project? Send me a message, and let’s create an app that stands out on the App Store! 🚀