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$60/hr
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$100K+ earned
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I build reliable, 𝗮𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜–𝗱𝗿𝗶𝘃𝗲𝗻 𝗰𝘂𝘀𝘁𝗼𝗺 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗳𝗼𝗿 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗼𝘄𝗻𝗲𝗿𝘀 𝗼𝗳 𝗦𝗠𝗕𝘀 𝗮𝗻𝗱 𝗵𝗶𝗴𝗵-𝗴𝗿𝗼𝘄𝘁𝗵 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀 that want to modernize operations and scale with confidence.
I focus on delivering systems for SMBs that create measurable business impact, not experiments, prototypes that stall, or over-engineered solutions.
𝗙𝗼𝗿 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀 𝗮𝗻𝗱 𝘁𝗲𝗰𝗵-𝗱𝗿𝗶𝘃𝗲𝗻 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀, 𝗜 𝗮𝗺 𝗮 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗽𝗮𝗿𝘁𝗻𝗲𝗿. From MVPs to enterprise-grade platforms, I help founders turn ideas into market-ready products using modern architectures, cloud-native infrastructure, and applied AI. The emphasis is always on scalability, maintainability, and speed to market.
I lead an experienced AI and software engineering team that partners with SMBs and high-growth startups to design, build, and deploy AI-powered business solutions and custom software platforms. Our work helps organizations:
• Automate and optimize core operations
• Reduce manual workload through intelligent agents and workflows
• Build scalable, secure, production-ready systems
• Move faster in an increasingly digital-first environment
The experience spans 𝗺𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝘃𝗲𝗿𝘁𝗶𝗰𝗮𝗹𝘀, including Education, Healthcare, Real Estate, Finance & FinTech, Legal & Professional Services and other data and workflows-heavy industries.
If you’re looking for a partner who combines deep technical execution, AI-first thinking, and business-driven decision-making, I can help you design and deliver solutions that actually scale.
______________________________________________________________________
🌀 𝗔𝗜 𝗔𝗚𝗘𝗡𝗧𝗦 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧
• AI Applications: Agentic AI Workflow Orchestration and Automation, Conversational AI, Chatbots, Business and Robotic Process Automation (BPA & RPA), Document & PDF Q&A, RAG Pipelines, Voice AI, AI Content Generation, AI-Powered Search, Multi-Agent Frameworks
• Platforms & Frameworks: n8n, Make. com, Crew AI, OpenAI Agent Builder, Flowise, AgentOS, Zapier
• CRM workflows & Integration: Hubspot, GoHighLevel (GHL), Salesforce, Zoho, SAP, ERPs, Quickbooks
• Techniques: Model Context Protocol (MCP) for AI Agents development, Tool-calling & function-based agents, Multi-step reasoning & task orchestration, Context/Memory (short + long-term)
🌀 𝗟𝗟𝗠𝘀, 𝗖𝗛𝗔𝗧𝗕𝗢𝗧 & 𝗖𝗢𝗡𝗩𝗘𝗥𝗦𝗔𝗧𝗜𝗢𝗡𝗔𝗟 𝗩𝗢𝗜𝗖𝗘 𝗔𝗜 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧
• LLMs: OpenAI; GPT-5 and Reasoning Models, Anthropic; Claude 4.5, Google; Gemini 3 Pro & MedPaLM 2, xAI; Grok 4, Meta's Llama, Mistral's Mixtral, Hugging Face Open Source Models
• RAG: Generation of Embeddings and Storage in Vector Databases; Pinecone, ChromaDB, Weaviate, Elasticsearch, FAISS for Retrieval Augmented Generation (RAG).
• Speech-to-text & Text-to-Speech: Deepgram Nova and Aura Engines, Whisper, ElevenLabs, PlayHT, Google and Microsoft Azure STT & TTS
• Tools: LangChain, LangGraph, LangSmith, LiveKit, Botpress, Rasa, Dialogflow, Twilio, Vapi, Bland AI, Synthflow, Multimodal Applications using Computer Vision, OCR, Image Models; Nano Banana Pro, GPT-Image-1
🌀 𝗪𝗘𝗕 & 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧
• Frontend Development: React, Angular, Next.js, VueJs, Nuxt.js, TypeScript, Redux
• Backend Development: Node.js, Django, Fast API, RESTful API, GraphQL, WebSockets
• Cross Platform & Native Mobile App Development: Flutter, React Native, Java and Kotlin for Android and Swift for iOS
• DevOps & Cloud Infrastructure: Amazon Web Services (AWS), Microsoft Azure and Google Cloud Platform (GCP). Docker and Kubernetes. CI/CD pipelines, Vercel, Nginx, GitHub Actions.
• Third party APIs and Integrations: GDPR / HIPAA / SOC-2 aligned integrations
Social login providers (Google, Apple, Microsoft, GitHub) | Email (SMTP, SendGrid) | Social Media Platforms (WhatsApp, Facebook, Twitter/X, Instagram, Youtube, TikTok) | Video conferencing & Real-time chat (Zoom, Google Meet, Microsoft Teams, Slack, Discord, Teams) | Calendar scheduling (Google Calendar, Outlook) | Payment processing (Stripe, PayPal) | Cloud drives (Google Drive, OneDrive, Dropbox) | Digital signatures (DocuSign) | Storefronts (Shopify, WooCommerce) | Google Maps and Weather APIs | Financial market data (Yahoo, Polygon, RevenueCat)
Sadeed A.
has worked
.
$100/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
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As a seasoned Mobile & Frontend app developer with over 10 years of experience, I specialize in creating innovative, scalable mobile solutions that drive real business value. My expertise covers the entire mobile development lifecycle, from initial concept to deployment and optimization, with a focus on React Native and cross-platform technologies.
I’m passionate about helping businesses leverage the latest mobile technologies to deliver exceptional user experiences while achieving measurable results aligned with core business goals.
Key Achievements:
* Architected top-performing consumer apps that achieved industry-leading downloads and user
satisfaction
* Engineered a business-critical mobile solution, enhancing operational efficiency and increasing
revenue for a major client
* Successfully delivered high-quality projects on time and within budget, consistently maintaining
strong client satisfaction
Technical Expertise:
* Mobile Development: React Native, Ionic Framework
* Frontend: React, Angular, HTML5, CSS3, Sass, JavaScript, TypeScript
* Database Integration: RESTful APIs, SQLite, Firebase
* State Management: Redux, Zustand, RxJS
* DevOps: CI/CD pipelines for Android and iOS, ensuring smooth build, test, and deployment
processes
* Version Control: Git, GitHub, GitLab, Bitbucket
* Project Tools: Jira, Slack, Microsoft Teams, Zoom
What I Offer:
* End-to-end mobile app development—from concept to launch—focused on scalable and
maintainable architectures
* Strategic consulting to help you select and implement the right mobile technologies for your needs
* Optimization of legacy apps for better performance and user engagement
* Agile team leadership and mentoring to ensure development best practices
* Seamless alignment of technical solutions with your business goals
Ready to transform your concept into a market-ready mobile application? Let's connect and discuss how my decade of expertise can drive your project to success across Android and iOS platforms.
$80/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
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🥇 The Top 1% of Talent (Expert Vetted)
💰 10+ apps shipped, generating over 8 figures in revenue.
⚡ AI speed combined with 7 years of production experience to deliver code that ships fast, with clean architecture, and scales without cracking.
Being Top Rated Plus and having a 100% success rate 💯 is something i’m very grateful for and a testimony to the many years of effort and quality of work, I’m always open to chat, feel free to reach out.
Over the last 7+ years i've worked with multiple companies ranging from Startups to Medium Sized Businesses and built apps and websites that launched and scaled successfully. I also hold a Bachelors Degree in Computer Science and Engineering.
Technical skills and knowledge are essential, but what I offer is more than that. I offer great technical ability as well as clear and well-articulated communication.
I believe in getting things done using:
⭐️Clean Code.
⭐️Tight Security.
⭐️Long-term optimization and Flexibility.
⭐️Code Reusability.
I specialise in Mobile app development. With extensive experience in Flutter, Django-Rest-Framework, Firebase,AWS and Google cloud.
I led the technical team for many mobile applications here are some examples of my projects: Padel Playground, Elithair, Easy Contacts Fixe, Kaf Insurance, Baseeta , JPadel and Sparke. which are available for viewing on the App Store and Play Store.
Functionalities & Systems built:
✅-Complex Booking Systems
✅-Chat Apps
✅-Book Reader Apps
✅-Event Managemen Apps
✅-Social Media Apps
✅-Wallet functionality (E-commerce)
My current focus is on building IOS and Android Apps and Websites using Flutter and Firebase (Google technologies) because of their performance, flexibility, scalability, and speed to launch.
My expertise also include:
Artificial intelligence: Machine learning, Deep learning, supervised/unsupervised learning.
The languages: Dart/ Python /Java/C++.
Back-end: Django, Firebase, Dart.
Front-end: Flutter, Html, CSS.
Databases: Cloud Firestore, NoSQL Databases, SQL.
Please feel free to send me a message anytime, always up for a call :)
Yassin D.
has worked
.
$65/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
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I build AI features that survive contact with production, inside iOS and Android apps that are already shipping to real users. 🎯
I'm an AI product engineer with 8+ years of production experience and 6+ years in React Native and Expo. I'm part of Toptal's vetted network (top ~3%) and the founder of Inseed, a boutique mobile studio on Upwork. Between direct work and the studio, I've delivered mobile and AI products for Carrier, National Debt Relief, Hazel Health, Kinobody, Bookvid, and YuMe, from seed-stage startups to Fortune 500 teams. 🏆
Most AI developers have never shipped to the App Store. Most mobile developers have never shipped a RAG pipeline. I do both, and I've done it under HIPAA.
🤖 AI work I have actually shipped:
- Multi-agent LLM pipelines (orchestration plus image generation) inside a live, end-to-end-encrypted journaling app
- RAG and semantic search: OpenAI embeddings, vector search, natural-language "search by vibe" over real inventory
- Real-time voice AI with Gemini Live, backed by long-term vector memory (pgvector)
- AI price valuation and market intelligence over scraped auction data
- Providers: OpenAI, Anthropic Claude, Google Gemini
📱 Mobile, which is where the AI has to land:
- React Native and Expo, managed and bare, through App Store and Play Store review
- 1M+ download enterprise app (Carrier); HIPAA-compliant telehealth live across 200+ hospitals
- Offline-first architecture, push notifications, deep links, native modules, OTA updates
- TypeScript-first, with unit, integration, and E2E coverage (Jest, Detox, Playwright)
🛠 Stack I work in daily:
React Native · Expo · TypeScript · React · Next.js
Node.js · NestJS · Python · GraphQL · REST APIs
OpenAI · Claude · Gemini · RAG · pgvector · vector search
Supabase · Firebase · PostgreSQL · AWS · Docker · Vercel
📈 Real impact:
- Migrated a 1M+ visitors/month site from WordPress to Next.js SSR, roughly 20x faster
- Took an inherited AI marketplace from ~50% complete to live on both app stores
- Shipped a HIPAA-compliant telehealth product that has been live over 2 years
- Cut crash rates and stabilized releases in legacy React Native codebases without stalling the roadmap
💬 How I work:
I care about your product outcome, not closing tickets. I flag risk early, I write TypeScript you can still read in a year, and if it is on my plate it ships.
Building an AI feature into a mobile app, or a mobile app that needs one? Send me a message. I reply within a few hours. 📩
Shuhel K.
has worked
.
United States
$75/hr
100%
Job Success
$20K+ earned
Available now
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About Me
I’m Stephan Shere, Founder & CEO of Exquisite Software, with nearly 30 years of experience in custom software development. I specialize in delivering tailored technology solutions that solve real-world problems, helping businesses transform ideas into scalable products.
Clients
I’ve had the privilege of working with industry leaders, including:
- Pizza Hut
- Twilio
- CR Bard
- Major enterprises and startups across sectors
My expertise spans fintech, eCommerce, healthcare, and more—always with a focus on delivering solutions that drive measurable growth.
Why Work With Me
- Experience & Expertise: Decades of hands-on development across platforms and technologies
- Proven Track Record: Successful delivery for top-tier clients, solving complex challenges
- Tailored Solutions: Business-first approach to custom software that aligns with strategic goals
- Scalability: From lean MVPs to enterprise-grade systems, I scale to meet your needs
- Collaboration & Communication: Transparent, responsive, and committed to partnership throughout the lifecycle
What I Do
I offer end-to-end services in:
- Custom Software Development
- Mobile & Web Application Development
- Cloud Solutions (AWS, Google Cloud, Azure)
- API Development & Integration
- Cross-Platform Development (React Native, .NET MAUI, Xamarin, Electron)
- Machine Learning & AI Integration (OpenAI, Hugging Face, TensorFlow)
- CI/CD and Git Platforms (GitHub, GitLab, Bitbucket)
- Enterprise Solutions & Consulting
Technical Expertise
My technical fluency includes:
- Languages: JavaScript (Node.js, React, Angular), Python, C#, PHP, SQL, TypeScript
- Frameworks & Tools: React Native, .NET MAUI, Xamarin, Electron, WinForms, WPF, SQL Server
- AI & ML: OpenAI, Hugging Face, TensorFlow, Jupyter Notebooks, LLM integration
- Collaboration Platforms: Git (GitHub, GitLab, Bitbucket), Jira, Trello, Confluence, Slack, Discord, Skype
- Cloud Platforms: AWS, Google Cloud, Azure
- Testing & Review: Unit Testing, Integration Testing, CI/CD, Test Automation
Leadership & Management
As Founder & CEO of Exquisite Software, I lead cross-functional teams, ensuring projects meet deadlines and business objectives. I foster collaborative environments and continuously refine development practices to deliver excellence
Stephan S.
has worked
.
Associated with
Exquisite Software, Inc.
$3K+
earned
$70/hr
100%
Job Success
$20K+ earned
Start of list.
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I’m an experienced Web Developer with nearly a decade of experience, leading a team of
professionals that specializes in crafting large-scale, client-focused solutions.
With us, you're not just hiring a developer; you're acquiring a dedicated technology partner
committed to delivering value to your business.
Our expertise lies in designing cutting-edge control systems that employ micro-services architecture, ensuring both scalability and flexibility.
Our portfolio includes development of Manufacturing Execution Systems (MES), Customer Relationship Management (CRM) software, as well as web admin interfaces and mobile applications for operators.
In line with the growing prominence of AI, we have incorporated it into our recent projects. Our extensive research over the past few months has enriched our expertise in language AI models.
This rigorous study has enabled us to not only utilize existing models effectively but also to develop or train our own when needed.
My team also features an in-house UX/UI Designer, ensuring that our products are not just functional, but also intuitive and visually appealing.
Technical Expertise:
- Backend: Python, Django, Flask, FastAPI
- Frontend: Angular, VueJS, Typescript
- Mobile Development: Flutter
- DevOps: Docker, CI/CD, Linux
- Databases: PostgreSQL, MySQL
- Scripting: Bash
- And other essential software development tools.
$85/hr
100%
Job Success
$9K+ earned
Offers consultations
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I'm a senior Python engineer with 15+ years of production experience who now spends most of my week doing exactly what AI evaluation work requires: reviewing and evaluating AI-generated code for correctness, reliability, and the edge cases models quietly get wrong.
At Yeti Games I architect a 30-agent LLM ecosystem, which means I review AI-written code every day - checking outputs against spec, designing test scenarios that expose reasoning and debugging failures, and building the evaluation pipelines that decide whether an agent's work is actually correct or just plausible-looking. That's the core of AI evaluation and benchmarking: knowing the difference between code that runs and code that's right.
What I bring to AI evaluation and benchmarking:
- Code review at depth: correctness, reliability, security, and the failure modes common in AI-generated code (happy-path-only validation, silent edge-case gaps, inconsistent error handling).
- Benchmark and test design: structured coding tasks, ground-truth test scenarios, and rubrics that produce consistent, defensible evaluations.
- Evaluation data pipelines: Python tooling (pytest, structured harnesses) to run, score, and aggregate model outputs at scale.
- Hands-on model building: I designed and trained a custom CNN-LSTM model on biometric time-series data (Nervo Labs) and built the training application around it, so I evaluate ML output as someone who has built, trained, and measured models, not just called APIs.
- Multi-language fluency: expert Python, plus JavaScript/TypeScript, C#, and Node.js, so I can review generated code across stacks.
Background: 15+ years full-stack (Python, Node.js, React, C#), currently building multi-agent systems with Claude and GPT-4, and earlier built DD-Omniscience, an AI-powered due-diligence platform using LLM analysis over large document sets. I also bring 15+ years in real-time 3D/XR (Unity, WebXR, Three.js, AR Foundation, VisionOS) - see my work history below - so I'm equally strong on interactive, game, and immersive builds.
US-based (California), available part-time or full-time with fast turnaround. Let's talk about what you're building.
$70/hr
100%
Job Success
$100K+ earned
Available now
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𝐄𝐱𝐩𝐞𝐫𝐭-𝐕𝐞𝐭𝐭𝐞𝐝 AI Engineer with 10+ years of hands-on experience in architecting and building production-grade AI systems including 6 years at Microsoft and GE Healthcare, where I designed and deployed compliant AI systems in enterprise environments, healthcare, and legal.
I specialize in transforming complex real-world problems into clean, reliable, and deployable AI systems from model design and optimization to cloud deployment and integration.
𝐖𝐡𝐚𝐭 𝐈 𝐃𝐎:
I architect and build compliant AI systems for regulated industries where accuracy, auditability, and data controls matter as much as model performance.
▸ 𝐋𝐋𝐌 & 𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
Production AI systems with hybrid retrieval, structured grounding, hallucination mitigation, semantic caching, evaluation pipelines, monitoring, and reliability controls.
▸ 𝐀𝐠𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐀𝐈 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧
Agentic and multi-agent workflows for voice AI, productivity AI, AI accessibility using LangGraph, LangChain, MCP-style orchestration, guardrails, fallback logic, and session-aware memory.
▸ 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
Production ML pipelines for ranking, classification, OCR / extraction, multimodal workflows, prediction, and model deployment designed for measurable outcomes and maintainable architecture.
▸ 𝐂𝐨𝐦𝐩𝐮𝐭𝐞𝐫 𝐕𝐢𝐬𝐢𝐨𝐧 & 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞
Computer vision and multimodal systems for OCR, document processing, form extraction, image classification, object detection, and image-to-structured-data pipelines.
▸𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐀𝐈 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 & 𝐀𝐈 𝐒𝐚𝐚𝐒
Scalable AI platforms and SaaS products with secure APIs, orchestration layers, cloud-native deployment, multi-tenant architecture, RBAC, and product-ready backend systems.
▸ 𝐑𝐞𝐠𝐮𝐥𝐚𝐭𝐞𝐝 𝐀𝐈 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
Compliance-aware AI systems for healthcare, legal, and fintech, including HIPAA, PHI, PII, auditability, deterministic workflows, and risk-controlled deployment patterns.
▸ 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐢𝐧𝐭𝐨 𝐄𝐱𝐢𝐬𝐭𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
LLM, RAG, ML, and computer vision integrated into enterprise workflows, internal tools, legal document systems, healthcare platforms, accessibility-focused products, and SaaS applications through APIs and event-driven architecture.
◆ 𝐅𝐥𝐚𝐠𝐬𝐡𝐢𝐩 𝐰𝐨𝐫𝐤
▸ 𝐒𝐦𝐚𝐫𝐭𝐂𝐢𝐭𝐞 - 𝐋𝐞𝐠𝐚𝐥 𝐀𝐈 / 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞
Built an AI-powered legal document and citation platform designed to extract citations, organize references, and improve legal research workflows.
Business result: Reduced manual citation review overhead to 80% and improved the speed to 60%.
▸ 𝐌𝐌𝐇𝐏 - 𝐑𝐞𝐠𝐮𝐥𝐚𝐭𝐞𝐝 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐀𝐈
Built an AI-powered mental health platform with structured assessments, dashboards, and privacy-sensitive conversational experiences.
Business result: Improved support continuity and reduced friction across mental health engagement workflows.
▸ 𝐀𝐈 𝐃𝐨𝐜 𝐌𝐚𝐤𝐞𝐫 - 𝐀𝐈 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐯𝐢𝐭𝐲 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦
Built an AI document-generation system for creating structured documents, presentations, spreadsheets, and multimedia content.
Business result: Reduced manual drafting effort, accelerated content workflows, and improved output consistency.
◆ 𝐂𝐨𝐫𝐞 𝐯𝐚𝐥𝐮𝐞 𝐈 𝐛𝐫𝐢𝐧𝐠
✓ Enterprise level AI systems delivered (Microsoft, Bayer, GE Healthcare)
✓ Production AI architecture that holds up under real usage, not just demos
✓ AI systems designed and built with compliance and risk boundaries in mind
✓ Hallucination risk reduced at the system-design level
✓ Agent workflows built for reliability, not experimentation
✓ Machine learning systems that are deployable, monitorable, and aligned with product goals
◆ 𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄
LLM / Agents: OpenAI · Anthropic (Claude) · LangChain · LangGraph · LlamaIndex · Hugging Face · MCP · AutoGen · Multi-agent orchestration · tool-use agents · human-in-the-loop · evaluation pipelines · hallucination measurement
Retrieval / RAG: Pinecone · Weaviate · hybrid SQL + vector search · Semantic retrieval · context quality scoring · RAG evaluation harnesses calibrated per-domain
ML / Vision (Healthcare-specific): PyTorch · TensorFlow · OpenCV · OCR · DICOM · multimodal pipelines · Clinical-grade model evaluation standards
Backend / APIs: Python · FastAPI · Node.js · REST APIs · Event-driven systems · microservices · FHIR-compatible API design
Infrastructure: AWS · Azure · GCP · Docker · Kubernetes · CI/CD · MLOps · evaluation pipelines · audit-logging infrastructure · HIPAA-compliant data residency configurations
I'd love to help in building your AI products from ground up or fixing your underperforming systems/models.
Need an AI architect/engineer to own production delivery end to end? Send me a message!
Sung-Hyun K.
has worked
.
Associated with
Zenaptic Labs
$60K+
earned
$85/hr
100%
Job Success
$70K+ earned
Start of list.
End of list.
I specialize in desktop, embedded, web, and mobile software development, with a strong focus on Qt C++ systems, cross-platform applications, and hardware integration such as RFID, sensors, and custom devices.
With 25+ years of experience, I deliver end-to-end software solutions across desktop, embedded, web, mobile, backend, and integration layers. I usually work on complete systems where reliability, maintainability, and long-term ownership are important.
Core Expertise
• Desktop Applications: Qt C++ / QML on Windows, Linux, macOS
• Embedded & Hardware Integration: RFID, sensors, custom devices
• Web Development: ASP.NET Core, APIs, databases, admin dashboards, backend systems
• Mobile Development: Android/iOS apps, cross-platform mobile integrations
• Backend & Integrations: REST APIs, databases, TCP/IP, third-party services
• Cross-Platform Systems: Windows, Linux, Android, iOS
• Project Ownership: Architecture, implementation, testing, deployment, delivery
Technologies & Tools
• Qt C++, Qt QML, PyQt
• C++, C#, Python, ASP.NET Core, WPF, WCF
• Web APIs, backend systems, admin panels, database-driven applications
• Socket programming, TCP/IP, multithreading, Windows services
• Windows API / SDK, MFC, COM, ActiveX
• Databases: MySQL, MS SQL, MariaDB, SQLite, ODBC
• Embedded: Atmel Studio, Microchip Studio
Strengths
• Building reliable, maintainable, long-lived systems
• Strong desktop, embedded, web, and mobile system integration experience
• Strong analytical and problem-solving skills
• Clear communication and independent execution
• Full ownership from architecture to final delivery
Selected Projects
• RFID-based document management system
• Billing and invoicing platform
• Fleet tracking and management system
• Automotive spectrum analyzer system
• POS and pharmacy management systems
• Hospital and healthcare management systems
• Hotel booking and resource management system
• Automotive climate control software
• Embedded alarm systems
• Automated greenhouse ventilation and irrigation system
• Web-based business management platforms
• Mobile apps connected to backend systems and hardware devices
$60/hr
100%
Job Success
$80K+ earned
Available now
Offers consultations
Start of list.
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I'm Talha, a Google-certified Project Manager and Full Stack Developer with over 5 years of experience delivering production-grade web platforms. I’ve led cross-functional teams, architected scalable systems, and shipped solutions that improve business efficiency and drive growth.
→ End-to-End Web Development
Build fast, reliable web applications with React, Next.js, Django, and FastAPI—tailored to real-world business needs.
→ Product & UI/UX Design
Design intuitive, elegant interfaces in Figma and Framer that users love to engage with.
→ API Architecture & Integration
Develop clean, secure APIs for seamless data flow between services and platforms.
→ Cloud Infrastructure & DevOps
Deploy and manage applications on AWS using Docker, Kubernetes, and CI/CD pipelines.
→ Technical Leadership & Project Management
Align teams, set clear goals, and ensure on-time delivery through structured processes and transparent communication.
Tools & Tech
→ Frontend: React / Next.js / Tailwind / Astro / Mapbox
→ Backend: Django / FastAPI / Firebase / Supabase / MySQL / Kafka
→ Design: Figma / Framer / Webflow
→ Cloud & DevOps: AWS / Docker / Kubernetes / Git
→ Leadership: Team Management / Agile Workflows / Communication
Talha J.
has worked
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