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$60/hr
$0 earned
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10+ Years of Experience | Front-end Development Engineer
Professional Summary
Full-stack developer with 20+ years of experience and a strong focus on front-end engineering. Proficient in TypeScript, JavaScript, and modern frameworks including React, Vue, Next.js, and Three.js. Experienced with UI libraries such as Ant Design, Element-UI, Vant-UI, iView, and Shadcn-UI.
Mobile & Cross-Platform Development
Skilled in Uniapp, Taro, and React Native for building high-performance mobile applications across iOS and Android
Backend & Cloud Integration
Node.js + Express for API development and server deployment
Integrated cloud services from Tencent Cloud and Alibaba Cloud: COS object storage, facial recognition, live streaming, and VOD
Specialized Expertise
WeChat Mini Programs, mobile apps, H5 solutions, and backend management systems
Proven track record of delivering 50+ projects with on-time delivery and high client satisfaction
What I Offer
Clean, maintainable code with attention to performance and user experience
Strong communication and collaboration skills to translate client needs into technical solutions
End-to-end development from requirements analysis to deployment and maintenance
United States
$150/hr
$0 earned
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Cybersecurity Crew Lead at a Fortune 100 semiconductor company. I lead a 6-person team securing 7,000+ Windows servers and 100K+ user/service accounts across 3 AD domains.
What I do:
AD hardening — RC4→AES256 Kerberos remediation (600+ accounts, 60K+ connections), SMBv1 removal across 8,000+ servers with zero downtime, stale account cleanup
Vulnerability management — ~10,000 remediations/year (20K peak), 20+ targeted campaigns, near-zero open criticals, CISA KEV closed within SLA
Threat analysis — CrowdStrike EDR, Tenable, BigFix, Windows Event logs; MITRE ATT&CK mapping, containment + remediation plans
Automation & AI — PowerShell, BigFix CIs, HPE iLO cert automation (3,000 certs/30 days), RAG chatbot over 120+ KB articles, MCP servers + n8n agent workflows, SQL/IIS dashboards
Documentation — own a 120+ article library; 2 enterprise-adopted white papers
Bring me in for AD hardening, vuln remediation at scale, or security automation.
United States
$65/hr
$100K+ earned
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Since 2005 I have been developing sites and apps for web and mobile. I possess a mastery of today's most popular Javascript frameworks such as React, Angular, and Vue. I have implemented countless essential API services such as Stripe and Twilio. I have proven experience with various Fortune 100 companies, including four-years of employment at IBM. My pursuit of knowledge and achievement in application development provides me with substantial personal gratification, and I look forward to offering my skills and sharing my enthusiasm with other talented and ambitious partners.
United States
$69/hr
40%
Job Success
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I'm a versatile and experienced developer with a strong background in full-stack web development, mobile application development, and DevOps. I am passionate about leveraging my team’s skills to build efficient, scalable, and secure solutions for any project. Whether it's creating intuitive web interfaces, designing robust backend systems, or automating complex workflows, we bring a wealth of experience and customization to every project.
~~~ Services Offered ~~~
- Frontend Development: React.js, Vue.js, Angular.js, Next.js, HTML, CSS, TailwindCSS, Electron.js, React Native
- Backend Development: Linux, Node.js, Express.js, Python, Django, Java, Spring, C#, ASP.NET, PHP, Laravel
- Content Management Systems (CMS): WordPress, Shopify, Sharetribe, SharePoint
- Databases: SQL, MySQL, PostgreSQL, NoSQL, MongoDB
- Blockchain Technologies: Web3.js, Smart Contracts
- AI Integration: ChatGPT, OpenAI, NLP
- Mobile Development: Swift (iOS development available upon request)
Let’s connect and explore new possibilities together.
Associated with
LimitlessAI
$100/hr
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I help clients build practical AI applications, with a focus on LLM-related development and AI features for apps. My profile background includes 5 years of AI development experience and open-source LLM contributions. I can support projects that need clear implementation, code review, prototype development, or AI feature integration. To help you evaluate fit, I can share relevant GitHub/code examples, explain my role in past contributions, and define the expected deliverables before starting work.
$85/hr
$300+ earned
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Principal Engineer / Hands-on CTO. 20+ years building SaaS platforms from 0 to 1 through to production.
Currently architecting a Node.js, Next.js, PostgreSQL and GCP wallet-pass SaaS for a London startup. Before that, 10 years as hands-on CTO of a white-label live-streaming platform (thousands of concurrent users during peak events, bespoke billing, Web3 NFT-gated access) and 6 years leading the tracking pipeline at a global affiliate network (5M+ daily events, zero data loss). On the side I founded and still run an affiliate analytics SaaS, now 16 years old, with 100+ external API integrations and a zero-downtime TB-scale MySQL to PostgreSQL migration behind it.
Strongest on backend architecture, audits of existing systems, scaling prototypes to production, and high-volume data and API ingestion. Comfortable parachuting into live codebases without disrupting what works.
Node.js, TypeScript, Next.js, PHP, PostgreSQL, MySQL, Redis, AWS, GCP, Docker.
$75/hr
$0 earned
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I develop high-performing iOS applications and advanced AI/LLM solutions, delivering production-ready systems tailored to client needs. With 8 years of experience, I specialize in native SwiftUI apps, on-premises LLM deployments, and automated content pipelines. My technical expertise spans the full stack, including Swift 6, Python, FastAPI, and integration with APIs like OpenAI. I have a proven track record of creating real-world applications, including multi-broker trading bots and custom fine-tuned LLMs powered by my own GPU infrastructure. I excel in prompt engineering and can enhance your project with cutting-edge AI capabilities. If you're seeking an innovative developer who can seamlessly bridge iOS and AI technologies, let's discuss how I can contribute to your success.
$60/hr
$0 earned
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I am a Full-Stack Developer with experience in building and deploying web and mobile applications. I specialize in React.js, React Native, Node.js, and Python with a strong focus on integrating Generative AI features. Having successfully launched two production apps on the Google Play Store, I also developed an AI-powered knowledge management platform that enhances user interaction with a Notion-style editor and real-time AI capabilities. My skills extend to REST API design, database architecture with PostgreSQL and MongoDB, and the creation of responsive microservices using FastAPI. If you are seeking a developer who combines technical expertise with innovative thinking, let's discuss how I can contribute to your project and help turn your ideas into reality.
$75/hr
$0 earned
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I am a seasoned full-stack developer with 23 years of experience in frontend application and backend development, specializing in innovative solutions across various industries including banking, real estate, retail, and education.
Former IBM software architect with 10 years of enterprise R&D experience, specializing in cross-platform mobile, IoT AI system & low-code platform development.
I excel in designing and implementing complex systems, including edge-side AI voice interactions and intelligent process orchestration. With strong proficiency in JS, Flutter, Vue, Angular, React, Node.js, and robust experience in data visualization technologies, I transform intricate data into engaging user experiences. My leadership experience spans managing development teams of over 150 professionals, ensuring projects are delivered on time and within scope.
If you're looking for a technically adept partner who can turn your ideas into functional applications, let's discuss how I can contribute to your project's success.
Turkey
$85/hr
$2K earned
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Notice : I am new to the Upwork platform, but my projects are globally recognized. I am an expert GIS Software Developer.
As a seasoned Senior Geographic Information Systems (GIS) Developer, I bring over a decade of experience in crafting innovative geospatial solutions that drive efficiency and insight. My journey has equipped me with a robust skill set, enabling me to deliver exceptional results for clients across various industries.
Professional Experience:
- Chief Technology Officer (CTO) at Mina MMC, Baku, Azerbaijan (2023-Present): Leading technological advancements and overseeing the development of cutting-edge GIS applications.
- Founder of GISLayer Inc., Izmir, Turkey (2020-Present): Established a company that launched the GISLayer Web GIS Editor, now serving nearly 4,000 members.
- Senior GIS Developer at TechMaven Geospatial, Miami, USA (2017-2023): Developed and managed complex GIS projects, enhancing spatial data analysis capabilities.
- Senior GIS Developer at Infrapedia, San Francisco, USA (2019-2020): Contributed to global infrastructure mapping initiatives, providing detailed geospatial insights.
- Mid-Level GIS Developer at BaÅŸkent Natural Gas, Ankara, Turkey (2017-2020): Implemented GIS solutions to optimize natural gas distribution networks.
- Junior GIS Developer at Metropolitan Municipality, Konya, Turkey (2014-2017): Supported urban planning projects through detailed spatial analyses.
- Geomatics Engineer at Geomatics Group, Izmir, Turkey (2011-2013): Conducted land surveying and spatial data collection for various engineering projects.
Educational Background:
- Selcuk University (2009-2015): Bachelor's degree in Geomatics Engineering, providing a solid foundation in spatial data analysis and geospatial technologies.
Technical Proficiencies:
- Web GIS: Proficient in OpenLayers, Mapbox GL JS, ArcGIS JS, LeafletJS, CesiumJS, and Google Maps.
- Back-End Development: Experienced with Node.js, .NET C#, Java Spring Boot, PHP, and Python.
- Front-End Development: Skilled in JavaScript, React, VueJS, HTML5, CSS3, and WebAssembly.
- Database Management: Adept with PostgreSQL, Oracle, MySQL, MongoDB, ElasticSearch, and SQLite.
- Mobile Development: Competent in Flutter and Android development.
Notable Projects:
- GISLayer Web GIS Editor: A web-based GIS tool enabling users to manage analyses and geometric data efficiently.
- Online Remote Sensing Analysis Software: A platform facilitating NDVI, NDWI, NBR, and other analyses using satellite imagery.
- Interactive Map Tourist Guide: A tool highlighting key points of interest for tourists exploring various cities.
- 3D City Guide for Municipalities: Software assisting municipalities in sharing points of interest, cadastral, zoning, and address information with residents.
Personal Interests:
Beyond my professional endeavors, I am passionate about software development, which I consider my most valuable hobby. I am also an accomplished painter and sculptor, enjoy playing multiple musical instruments, and engage in activities such as swimming, tennis, and skiing to maintain a balanced lifestyle.
I am committed to leveraging my expertise to deliver top-tier geospatial solutions that meet and exceed client expectations. Let's collaborate to bring your project to fruition.