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$20/hr
100% Job Success
$70K+ earned
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💼 16+ Years of Experience
🧠 10+ Years as Architect
📚 Author: Java Hibernate Cookbook
🇺🇸 USA B1/B2 Visa Holder
📞 Voice AI & Calling Agent | 🤖 AI/ML | ⚛️ React | ☕ Java | 🚀 Node.js | 13+ Years | SaaS & Enterprise Systems
I’m a seasoned Full-Stack Developer with over 16 years of experience building high-performance, scalable applications for startups and enterprises alike. My focus is on delivering quality SaaS-based and multi-tenant solutions tailored to client needs.
I’ve worked across diverse industries including Banking & Financial Services, Healthcare, Transportation, Hospitality, HR, and IT. Whether leading offshore teams or managing projects solo, I bring strong technical leadership, clear communication, and business acumen to every engagement.
💼 Core Skills & Technologies
Back-End Development:
○ Java, J2EE, Node.js, TypeScript
○ Spring Boot, Hibernate, Spring MVC, JDBC, JSP, Servlets, Backbase
○ Express.js, NestJS, Jest, Multer, Graphile Scheduler
Front-End Development:
○ React, Angular (2+ to latest), Angular Material
○ HTML5, CSS3, SASS, SCSS
○ JavaScript, TypeScript, JSON
Databases:
○ SQL: Oracle, MySQL, PostgreSQL, SQL Server, MariaDB
○ NoSQL: MongoDB, CouchDB, Couchbase, Firebase, DynamoDB, Apache Lucene
Cloud Platforms:
○ Amazon Web Services (AWS), Google Cloud Platform, Microsoft Azure
DevOps & Tools:
○ Shell Scripting, Jenkins, Kubernetes
○ Payment Integration: Stripe, PayPal
○ Industry Platforms: Backbase, EBICS
🧩 What I Bring to the Table
◎ Deep business understanding through real-world experience
◎ Proven success in enterprise-grade architecture & clean code delivery
◎ Strong communication, transparency, and professional integrity
Let’s build something powerful together. I’m ready to support your project with skill, strategy, and sincerity.
$55/hr
100% Job Success
Available now
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🔹 What I build
I build production backend systems that handle real-time distributed traffic at scale using Golang, Python and Node.js.
I focus on systems where latency, reliability, and throughput directly impact production outcomes under high concurrency and event-driven workloads.
I design and implement blockchain integration layers that connect backend systems with Ethereum-based transaction and wallet workflows in production environments.
🔹 Production impact
Focused on building production-grade systems that improve reliability, throughput, and system resilience under real-world traffic conditions.
Built real-time backend systems using Go, Node.js, and Python with Redis Pub/Sub and SSE for high-volume event-driven communication
Designed and stabilized high-throughput API systems and microservice architectures under concurrent production traffic
Developed blockchain transaction and wallet integration systems using Node.js and Ethereum-based stacks in production environments
Implemented smart contract interaction layers and backend services for token and transaction workflows
Built payment and external API integration systems with strong consistency, idempotency, and failure recovery requirements
Operated cloud backend systems on AWS/GCP with scaling, monitoring, and production observability
🔹 Core engineering focus
Distributed backend systems (Go / Node.js / Python)
Event-driven architecture (Redis Pub/Sub, SSE)
Blockchain transaction systems (Ethereum / Web3 integration)
Backend ↔ on-chain data flow design
High-concurrency API systems
Production reliability, scalability, and latency optimization
🔹 How I work
I identify bottlenecks in production systems across latency, throughput, and data consistency.
I implement changes that improve system stability and performance across backend and blockchain layers without disrupting production traffic.
🔹 Availability
Available for backend architecture, blockchain integration, system scaling, and production refactoring projects.
$10/hr
100% Job Success
$800+ earned
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I'm a SAP FICO L2 Consultant with 2 years under DXC Technology under Nokia FICO RUN account. After I leave the company to seek for a new challenge I was hired as a Python Software Backend Developer for 2 years at Detail Online Tech Inc. and currently working full-time under automation team in DXC Technology supporting applications for Procter and Gamble under AMS Support Team.
If you want reliable person for your projects with less cost, you're checking the right person.
$80/hr
$200+ earned
Available now
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I turn complex workflows and promising AI prototypes into production-ready software platforms.
𝟭𝟵+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 • 𝟯𝟬+ 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗠𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 • 𝟯𝟬𝟬,𝟬𝟬𝟬+ 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝗠𝗮𝗻𝗮𝗴𝗲𝗱 • 𝗟𝗲𝗱 𝗧𝗲𝗮𝗺𝘀 𝗼𝗳 𝘂𝗽 𝘁𝗼 𝟱𝟬 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀
An AI agent or vision model that only works in a demo is not a product. I build agentic AI and computer vision systems that hold up in production—and the Spring Boot, Python, data, and cloud infrastructure they need to run at scale.
𝗪𝗛𝗔𝗧 𝗜 𝗖𝗔𝗡 𝗛𝗘𝗟𝗣 𝗬𝗢𝗨 𝗕𝗨𝗜𝗟𝗗
→ 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜 & 𝗟𝗟𝗠 𝗦𝘆𝘀𝘁𝗲𝗺𝘀
Multi-agent architectures, tool-using agents, AI workflow automation, and production integrations using OpenAI, Claude, and Gemini.
→ 𝗥𝗔𝗚, 𝗙𝗶𝗻𝗲-𝗧𝘂𝗻𝗶𝗻𝗴 & 𝗘𝘃𝗮𝗹𝘂𝗮𝘁𝗶𝗼𝗻
Hybrid BM25 and vector retrieval, re-ranking, GraphRAG, Pinecone, Weaviate, and Qdrant, plus LoRA and QLoRA fine-tuning with Unsloth, Axolotl, Hugging Face TRL, and Crusoe—with hallucination control using RAGAS, DeepEval, and LangSmith.
→ 𝗖𝗼𝗺𝗽𝘂𝘁𝗲𝗿 𝗩𝗶𝘀𝗶𝗼𝗻 𝗮𝗻𝗱 𝗩𝗶𝗱𝗲𝗼 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴
Object Detection and Tracking, Pose Estimation, Anomaly Detection, CCTV Monitoring and Surveillance, Facial Recognition, Medical Imaging, 3D reconstruction, Diffusion models.
→ 𝗘𝗱𝗴𝗲 𝗔𝗜 & 𝗥𝗲𝗮𝗹-𝗧𝗶𝗺𝗲 𝗜𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲
Model optimization with ONNX and TensorRT for NVIDIA Jetson Nano/Orin and Hailo, for real-time inference.
→ 𝗦𝗮𝗮𝗦 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 & 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴
Multi-tenant platforms and MVPs from data model to deployment using Java, Spring Boot, Python, FastAPI, Django, PostgreSQL, and Kafka on AWS, GCP, and Azure.
→ 𝗔𝗣𝗜 & 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻
ERP, CRM, ecommerce, and healthcare integrations—including connecting AI agents securely to systems you already run.
→ 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 & 𝗠𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻
Architecture assessments, technical roadmaps, build-vs-buy decisions, due diligence, and modernization that cuts technical debt without a rewrite.
𝗦𝗘𝗟𝗘𝗖𝗧𝗘𝗗 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 & 𝗥𝗘𝗦𝗨𝗟𝗧𝗦
✓ Architected an AI-powered pricing intelligence and catalog platform managing more than 300,000 industrial products, cutting quotation time from days to hours and improving search performance by 3×.
✓ Built an automated hunting platform to classify the shot as hit or miss, detect and track birds movement and classify their species.
✓ Built real-time detection and tracking for occluded, multi-camera environments—stable identity across viewpoints, behaviour classification from body motion—deployed across retail surveillance and aerial platforms.
✓ Built a real-time playing cards detection & tracking system using YOLO where each card was classified as player and banker. The model was optimized with ONNX and TensorRT for fast inference on Jetson Nano. Also, developed a MetaHuman based Virtual Receptionist to assist clients in bookings and guiding visitors and the solution was deployed on Jetson Orin.
✓ Contributed to enterprise healthcare interoperability: HL7 FHIR, Smile CDR, secure identity, and cloud health information exchange.
✓ Built an AI-enabled inventory and logistics platform for a bakery using Python, Django, Supabase, and OpenAI.
✓ Delivered enterprise workflow modules for a secure correctional management platform—approvals, case tracking, document management, and business rules.
𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗬 𝗦𝗧𝗔𝗖𝗞
𝗔𝗚𝗘𝗡𝗧𝗜𝗖 𝗔𝗡𝗗 𝗚𝗘𝗡𝗘𝗥𝗔𝗧𝗜𝗩𝗘 𝗔𝗜:
LangChain, LangGraph, LlamaIndex, GPT, Claude, Gemini, Qwen, Kimi, DeepseekR1, Hugging Face, RAGAS, DeepEval, LangSmith, Pinecone, Weaviate, Qdrant, LoRA, QLoRA, GraphRAG
𝗖𝗢𝗠𝗣𝗨𝗧𝗘𝗥 𝗩𝗜𝗦𝗜𝗢𝗡 & 𝗘𝗗𝗚𝗘:
YOLO, DeepSORT, BYTETrack, OpenCV, dlib, MediaPipe, MMLab, PyTorch, TensorFlow, Vision Language Models, Whisper, ONNX, TensorRT, NVIDIA Jetson (Orin, Nano), C++
𝗗𝗔𝗧𝗔, 𝗖𝗟𝗢𝗨𝗗 & 𝗠𝗟𝗢𝗣𝗦:
PostgreSQL, MongoDB, Docker, AWS, SageMaker, Bedrock, Lambda, GCP, Vertex AI, Azure, GitHub Actions, MLflow
𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞
I start by understanding what needs to improve, who will use the system, what constraints already exist, and how we will know it worked. From there I stay hands-on through architecture, implementation, integration, deployment, and the debugging that comes after launch. Throughout, you can expect clear communication, documented architecture, and long-term ownership of what I deliver. I also provide fractional CTO-level support for architecture reviews, roadmaps, and vendor evaluations.
𝗡𝗘𝗫𝗧 𝗦𝗧𝗘𝗣
Send me two or three sentences about what you are building, its current state, and your timeline. I will reply with an honest read on scope, major risks, and the fastest safe path to produc
$30/hr
100% Job Success
$400K+ earned
Available now
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I take over mobile apps and run them. My two largest Upwork clients kept me on for 3,800 and 1,100 hours straight; building, shipping, and maintaining iOS + Android so they never needed an
in-house dev team.
WHAT I ACTUALLY DO
Most of my work isn't "build an app and disappear." It's owning the mobile side of a business: the roadmap, the releases, the store submissions, the 2 am production bug. Clients who don't have
a CTO hire me to be the person who handles all of it.
Longest engagements: 3,805 hours over 14 months (NFC iOS/Android platform), 1,109 hours over 8 months (event management app), 1,013 hours over 9 months, 597 hours over 13 months (Flutter).
23,000+ hours on Upwork, 100% Job Success, Top Rated Plus.
Outside Upwork, I've run a software development agency for 6 years and maintain production apps including MTailor, Hamperapp, and MyTello; real apps in both stores with real users.
HOW I WORK
- Native Android: Kotlin, Jetpack Compose, Coroutines/Flow, MVVM & Clean Architecture, Room, Hilt
- iOS & cross-platform: Swift, Flutter, React Native, TypeScript
- Integrations: REST/GraphQL, Stripe and in-app purchases, NFC, low-level TCP socket protocols (thermal printers, hardware)
- Release ownership: App Store and Play Console submission, review, phased rollout, crash monitoring
- AI features when your product needs them: OpenAI/Claude APIs, RAG pipelines, custom LLM backends
I take over existing codebases without a rewrite, and I inherit other people's technical debt for a living. Stability first: if your app is already earning money, my job is to not break it.
If you need one person to own your mobile product instead of managing three contractors, message me and tell me what you're running today.
Associated with
Cypress
$45/hr
100% Job Success
$300K+ earned
Available now
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I help startups and founders turn ideas into scalable SaaS products using React, Node.js, and AWS from initial concept to production-ready MVP.
Over the past 10+ years, I’ve worked on multiple SaaS platforms, focusing on fast delivery, clean architecture, and long-term scalability.
What I can help you with:
Build your MVP from scratch (frontend + backend + cloud)
Turn your concept or Figma designs into a working product
Design scalable backend architecture (Node.js, PostgreSQL)
Set up cloud infrastructure (AWS, CI/CD, deployments)
Improve and refactor existing SaaS applications
💡 I don’t just write code - I help you make product and technical decisions to launch faster and avoid costly mistakes.
🧩 Relevant Experience
🔹 SaaS MVP Development
Built multiple MVPs from scratch with React + Node.js
Delivered production-ready apps within tight timelines
Helped founders validate ideas and go to market faster
🔹 Backend & Architecture
Designed scalable APIs (Node.js, Express/NestJS)
Database design (PostgreSQL, MongoDB)
Authentication, multi-tenant systems, integrations
🔹 Frontend Development
React (hooks, state management, performance optimization)
Clean UI implementation from Figma / designs
🔹 Cloud & DevOps
AWS (EC2, RDS, S3, Lambda)
CI/CD pipelines, Docker
Deployment and monitoring setup
AI-Driven Development Approach
In addition to traditional software engineering, I actively use modern AI tools and workflows to accelerate development, improve code quality, and deliver solutions faster. My approach combines full-stack engineering expertise with AI-assisted development, allowing me to rapidly design architectures, generate reliable code components, automate repetitive tasks, and prototype complex features.
By integrating AI into the development workflow, I can significantly reduce development time while maintaining high standards of scalability, performance, and maintainability.
📈 Example Outcomes
Built MVP for a SaaS platform in 8–10 weeks from scratch
Reduced infrastructure costs by 30% through AWS optimization
Improved API performance by 2–3x for high-load applications
⚙️ Tech Stack
React, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, Docker, REST APIs, CI/CD
📩 If you’re looking to build or improve your SaaS product — feel free to reach out. Happy to jump on a quick call and discuss your idea.
Associated with
ABCloudz
$600K+
earned
$45/hr
100% Job Success
$300K+ earned
Available now
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I help healthcare companies and digital health teams build mobile apps faster, securely, and cost-efficiently, especially for connected devices, BLE integrations, and regulated environments.
Instead of managing separate codebases, I deliver a single, scalable cross-platform architecture that supports medical-grade mobile applications, reduces development time by 40–60%, and maintains native performance.
My focus goes beyond standard mobile development — I specialize in healthcare ecosystems, including:
• Connected medical devices & wearables (BLE, IoT)
• Real-time and near real-time health data processing
• Apple Health / Google Fit integrations
• HIPAA-aligned architectures & secure data handling
• Remote patient monitoring & digital therapeutics apps
Whether you're building an MVP or scaling an existing product, I help you choose the right architecture, avoid costly mistakes, and accelerate time to market.
𝙁𝙖𝙘𝙩𝙨 𝙖𝙗𝙤𝙪𝙩 𝙢𝙚
🏅 Built 100+ mobile applications across Flutter, iOS and Android
🚀 15+ years in mobile development including Flutter mobile development
🏆 Founded a technology company acquired by Microsoft
🌐 Developed developer tools acquired by AWS
🎯 Built products across Healthcare, IoT, Travel, Ecommerce and SaaS
💰 Helped startups launch profitable mobile products for iOS and Android
🔍 𝙃𝙤𝙬 𝙄 𝙃𝙚𝙡𝙥 𝙁𝙤𝙪𝙣𝙙𝙚𝙧𝙨
Whether you're building a startup MVP, SaaS platform, marketplace app or scaling an existing mobile development product for iOS and Android, I deliver production-ready Flutter mobile apps using modern mobile development architecture.
𝙈𝙮 𝙬𝙤𝙧𝙠𝙛𝙡𝙤𝙬 𝙛𝙤𝙘𝙪𝙨𝙚𝙨 𝙤𝙣:
✔ Fast MVP mobile development for startups
✔ Clean and scalable Flutter mobile development architecture
✔ Stable Flutter builds for iOS and Android
✔ High-performance UI and animations for Flutter mobile apps
✔ Long-term scalability in mobile development
This approach helps companies reduce mobile development costs and launch faster across iOS and Android markets.
𝙎𝙝𝙤𝙧𝙩 𝙥𝙞𝙩𝙘𝙝
I'm a Senior Flutter Developer / iOS & Android Mobile App Developer with 15+ years of experience in mobile development. I design and scale mobile applications for iOS and Android using Flutter mobile development, Dart, Swift, Kotlin, Android development and iOS development combined with modern mobile architecture. Whether you need a Flutter developer, cross-platform mobile developer, startup MVP engineer, or mobile development expert for iOS and Android, I’ve got you covered.
𝙁𝙪𝙡𝙡 𝙡𝙞𝙨𝙩 𝙤𝙛 𝙢𝙮 𝙨𝙠𝙞𝙡𝙡𝙨
📱 Mobile Development: Flutter, Dart, Swift, SwiftUI, Objective-C, Kotlin, Java, Android, iOS
📲 Mobile Architecture: Flutter architecture, BLoC, Provider, Riverpod, Clean Architecture, MVVM
🖥 Web: TypeScript, JavaScript, React.js, Next.js
🔗 Backend & APIs: REST APIs, Firebase, GraphQL, WebSockets
🗄 Databases: SQLite, Firestore, MySQL, PostgreSQL
⚙ Tools: Git, CI/CD, Fastlane, TestFlight, Firebase
With over a decade in mobile development, I also help with mobile product strategy, Flutter architecture consulting, AI integrations, backend infrastructure and full-stack development for mobile products.
𝙄𝙛 𝙮𝙤𝙪'𝙙 𝙡𝙞𝙠𝙚, 𝙛𝙚𝙚𝙡 𝙛𝙧𝙚𝙚 𝙩𝙤 𝙘𝙡𝙞𝙘𝙠 𝙩𝙝𝙚 𝙜𝙧𝙚𝙚𝙣 "𝙎𝙚𝙣𝙙 𝙖 𝙢𝙚𝙨𝙨𝙖𝙜𝙚" 𝙗𝙪𝙩𝙩𝙤𝙣 𝙖𝙣𝙙 𝙩𝙚𝙡𝙡 𝙢𝙚 𝙢𝙤𝙧𝙚 𝙖𝙗𝙤𝙪𝙩 𝙮𝙤𝙪𝙧 𝙢𝙤𝙗𝙞𝙡𝙚 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩🚀
Over the years I’ve delivered Flutter mobile development solutions for iOS and Android startups, SaaS platforms and enterprise mobile applications, helping companies scale mobile development products across Flutter, iOS and Android environments.
Flutter developer focused on Flutter mobile development for iOS and Android applications. Experienced in building scalable Flutter mobile apps for iOS and Android using modern mobile development architecture. I design and deliver Flutter mobile development solutions for iOS and Android startups, SaaS products and enterprise platforms. My work combines Flutter mobile development, iOS development and Android development to deliver stable mobile applications with high performance across Flutter, iOS and Android.
7/04
Associated with
ABCloudz
$600K+
earned
$19.99/hr
100% Job Success
$10K+ earned
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I design and deploy production-grade large scale applications. With proven experience at global companies like 𝗧𝘂𝗿𝗸𝗶𝘀𝗵 𝗔𝗶𝗿𝗹𝗶𝗻𝗲𝘀 and 𝗨𝗻𝗶𝘃𝗲𝗿𝘀𝗶𝘁𝘆 𝗖𝗼𝗹𝗹𝗲𝗴𝗲 𝗟𝗼𝗻𝗱𝗼𝗻, I build robust, scalable, and well-tested web and mobile solutions tailored to your business goals.
🏆 𝗡𝗼𝘁𝗮𝗯𝗹𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 (𝗦𝗲𝗲 𝗹𝗶𝘃𝗲 𝗱𝗲𝗺𝗼𝗻𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗽𝗼𝗿𝘁𝗳𝗼𝗹𝗶𝗼)
1 - Drive Weather App (100K+ users) - 2026
Built custom routing APIs using OpenStreetMap and GraphHopper routing engine with vehicle-specific profiles and high-accuracy ETA predictions across North America.
2 - ScooterNav (Netherlands) - 2025
Designed Nedherland's first custom scooter routing solution with ferry handling and regional road optimization.
3 - Turkish Airlines Developer Portal (2024)
Delivered enterprise-grade REST APIs suite integrated into one of the world's largest airline platforms.
4 - European Research Council Project (€2.5M Funded, 2021)
Contributed as Java Developer & Researcher in an international academic consortium.
5 - “Android Mobile Programming in Java” (2017)
Used as a recommended textbook in several Turkish universities.
𝗠𝘆 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 𝗮𝗻𝗱 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀:
- end-to-end system development from concept to production.
- AI integration
- backend automation platforms
- designing scalable APIs
- deploying cloud and VPS servers
𝗜 𝗮𝗹𝘀𝗼 𝗵𝗲𝗹𝗽 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀 𝘁𝗼:
- build routing and navigation solutions using GraphHopper and OpenStreetMap.
- optimize paths for various vehicle types (cars, trucks, motorbikes, bikes, scooters and so on) and pedestrians
- develop high-accuracy ETA systems
- deploy scalable geospatial infrastructure
- configure geocoding systems (text address to geographical coordinates and vice versa) using Nominatim, Photon, Pelias
If you have a question, you can book me for a consultation. We can review the key points efficiently and define the best next steps.
𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝘁𝗮𝗰𝗸𝘀:
- Frontend Integration & UI Development (Angular, JSF, PrimeFaces, HTML/CSS)
- Backend Development (Java & Spring Boot)
- Secure Authentication (JWT, Spring Security)
- Database (OracleSQL, MSSQL, PostgreSQL, MyBatis, Redis Caching, CouchBase)
- Unit & Integration Testing (JUnit, Mockito)
- CI/CD Pipelines & Docker
- Documentation & Technical Writing (Markdown, Swagger/OpenAPI, ApiCurio)
- Domain Expertise: GraphHopper. OpenStreetMap, Nominatim, Pelias
𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿
I always aim to improve my skills at all time and get certified by respected organizations.
$40/hr
100% Job Success
$700K+ earned
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Full-Stack & Mobile Engineer (React, Next.js, Node.js, React Native, n8n, Supabase) ▪ 10 years
I help startups and growing companies build high-quality web apps, mobile apps, and backend systems using React, Next.js, Node.js, React Native, TypeScript, Supabase, and PostgreSQL.
I turn messy codebases and unfinished features into clean, fast, stable applications — web, mobile, and backend.
I build MVPs in weeks, automate workflows with n8n, and ship production-ready releases at a predictable pace.
My work has supported teams at Google, MIT, FedEx, and IPG Photonics (LightWeld used in SpaceX supply chain).
Why me:
🏅 Top Rated Plus ▪ 100% Job Success ▪ $700k+ earned
10 years of hands-on full-stack, mobile, and backend development
Shipped 70+ products across FinTech, HealthTech, SaaS, and marketplaces
Built systems used inside Google, MIT, and FedEx
Developed industrial software for IPG/LightWeld powering SpaceX-grade manufacturing
Led engineering for a fintech mobile app with 250k+ monthly active users
YC startup I worked with raised $1.6M after MVP
What I deliver:
• Full-stack development: React, Next.js, TypeScript, Node.js
• Mobile app development: React Native for iOS & Android
• Backend development: Supabase, PostgreSQL, Firebase, custom APIs
• API integrations: Stripe, HubSpot, Slack, REST, GraphQL
• Automation: n8n workflows (onboarding, CRM sync, internal tools)
• MVP development in 4–8 weeks
• Codebase rescue, refactoring, performance improvements
• Long-term weekly development & product support
Toolbox:
React ▪ Next.js ▪ React Native ▪ Node.js ▪ TypeScript ▪ Supabase ▪ PostgreSQL
Firebase ▪ Redis ▪ Swift ▪ Kotlin ▪ Docker ▪ AWS ▪ Vercel ▪ CI/CD ▪ n8n Automations
You get someone who can architect, build, integrate, and actually finish things — not just write fragments of code.
If you need a reliable full-stack or mobile engineer who delivers clean engineering and fast execution — let’s talk.
Associated with
IvorySoft - Top React | Node.js | TypeScript Agency
$2M+
earned
$45/hr
100% Job Success
Available now
Offers consultations
Start of list.
End of list.
💻 Senior Java Developer | Spring Boot | Cloud | E-commerce | Automation | ETL | Space Systems | 10+ Yrs
🚀 10+ years of experience building scalable, cloud-native applications and automation systems using Java (8–21), Spring Boot, and modern DevOps practices.
✅ Why Choose Me?
Enterprise Java Expertise: Deep knowledge in Java SE/EE, Spring Boot, Spring Cloud, JPA/Hibernate.
Space Software Development: 3 years in mission-critical ground segment systems for satellite operations.
E-commerce Automation: Integrated with Amazon SP-API, eBay, Etsy, Walmart, Shopify, and more.
Cloud & DevOps: AWS, GCP, DigitalOcean, CI/CD (GitHub Actions, Jenkins, GitLab).
ETL & API Integration: n8n, Make.com, custom data pipelines with FTP, SOAP, HTTP.
Database Proficiency: PostgreSQL, MongoDB, Oracle, Couchbase, Cassandra, Elasticsearch.
UI Skills: HTML, CSS, JavaScript, Bootstrap for clean, responsive interfaces.
🔧 Tech Stack
Languages: Java, SQL, JavaScript
Frameworks: Spring Boot, Spring Cloud, Spring Batch
Cloud: AWS, GCP, DigitalOcean
Databases: PostgreSQL, MongoDB, MySQL, Oracle, Cassandra
DevOps: Docker, Jenkins, GitHub/GitLab CI/CD
APIs/Automation: Amazon SP-API, Shopify, DHL, n8n, Make.com