Hire the Best NoSQL Developers in Los Angeles, CA

Hello! My name is John. I'm a software engineer and web developer based in Los Angeles. Over the last 5 years I have helped write and maintain apps and custom websites (Vue.js, React, Angular, Python), build ecommerce websites (Shopify, BigCommerce, Squarespace), as well as build custom brand sites or lead-generation sites (WordPress, Joomla). Usually I work for an agency, but in 2024 I am trying to increase my freelance hours and reputation on Upwork! Things I Can Help You With: * Design (how your app or site should look and feel) * Development (write the code that builds your project) — this is my bread and butter * Launch (when it's ready, let's put your project on the web; can also help with DNS, SSL, hosting, etc.) * SEO Optimization (I will make sure your site is following all the rules that can help with your ranking) * Site-Speed Optimization (deep-dive and figure out where we can make some speed gains) * Planning, Budget, & Timeline (trying to plan a whole web project can seem daunting. Luckily, I've been through this process hundreds of times. I got your back, we can do this). * Tech I Can Use: HTML, CSS/SCSS, JavaScript, Node-Express, Vue.js, React, Angular, Python, PHP, MySQL, NoSQL, GitHub, Bitbucket, VSCode, Bootstrap, Material, jQuery, Firebase Hosting & Database, Zapier, and more. About Me: Mensa member, graduated from UC Berkeley. I love camping and hiking, and I like dogs because they are man's best friend. I would love to find out about your needs and figure out a solution. Please get in touch today! Thank you and hope you have a great day. John

Here's the version with improved formatting and organization: Full-Stack Developer & Data Solutions Specialist with enterprise experience at Nielsen and NYC government. Technical Core Backend: Node.js, Express.js, Hono, Cloudflare Workers Databases: MySQL, Oracle 11g, MS SQL Server Cloud Infrastructure: AWS (S3 CLI, EC2, IAM Admin) Cloudflare Microsoft Solutions Excel: Advanced formulas, Power BI, VBA automation Access: Full solutions with ODBC connectivity, forms, queries Data Visualization: Power BI, Tibco Spotfire AI-Enhanced Development: Claude Pro Key Achievements Developed Nielsen TV ratings QA system Managed data auditing for multi-billion dollar portfolios Created Virtual Restaurant Solutions platform Guest Instructor: University of Florida Services Full-stack development Microsoft enterprise solutions Data engineering & visualization Database architecture Custom business automation Master's in Technology Entrepreneurship. Bilingual (English/Spanish). Available for enterprise solutions and startup projects.

Looking to innovate with AI or scale your software systems with top-tier engineering leadership? I’m here to help. With a patent in Artificial Intelligence, decades of hands-on software development, and experience ranging from fast-paced startups to large Silicon Valley tech firms, I excel at crafting robust, high-performance solutions—whether you need a fractional CTO, a principal software architect, or a solo/full-team developer. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐫𝐢𝐧𝐠 𝐭𝐨 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 • 𝐄𝐱𝐞𝐜𝐮𝐭𝐢𝐯𝐞 & 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐋𝐞𝐚𝐝𝐞𝐫𝐬𝐡𝐢𝐩 – I’ve held CTO roles, guiding teams to architect and deploy production-grade software that meets business objectives. • 𝐀𝐈 & 𝐌𝐋 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 – Background includes a patent in AI and years delivering custom machine learning solutions (LLMs, generative AI, computer vision, etc.). • 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 – Skilled in Python, Node.js, Go, Rust, and cloud platforms (AWS, Azure, GCP). I build end-to-end solutions with scalability, security, and maintainability in mind. • 𝐒𝐭𝐚𝐫𝐭𝐮𝐩 𝐭𝐨 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 – From MVPs to global-scale systems, I’ve successfully navigated the entire software life cycle. Send me a message — together, we’ll convert your vision into an innovative product that drives business value.

Hi name is Jonathan a software developer I build automation tools and backend tools for macOS and Linux. I can build Desktop, iOS, Android and Web Apps. I have quantitative analysis mindset and most of the time I Ponder in Mathematics. What is your project?

Hello 👋 Are you looking for a technical partner who doesn't just write code but builds investor-ready AI-driven products? My name is Valerii. I am a senior full stack developer and AI architect with a strong product and business background. I help founders and teams transform complex ideas into scalable SaaS platforms, mobile applications, and AI driven automation tools. With experience in business development, I understand not only how to build systems, but also how they support growth, revenue, and long term scalability. • AI and machine learning I do not add AI just to follow trends. I design intelligent systems that solve real problems and often deliver efficiency improvements of forty percent or more. I work with modern language models including openai gpt 4o anthropic claude gemini and llama I build retrieval based architectures using langchain and llamaindex combining embeddings semantic search and structured prompting. These systems are supported by vector databases such as pinecone milvus and weaviate which allow accurate context retrieval and personalization. Typical solutions include AI assistants internal copilots custom agents automated workflows content generation pipelines and predictive logic integrated directly into the product. • Full stack development I build fast and scalable web products with a strong focus on usability performance and long term maintainability. On the frontend I work with react and next.js using typescript modern component architecture and utility first styling. I pay close attention to user experience accessibility seo and real world performance metrics. On the backend I design clean and reliable systems using node.js and python I build rest and graphql APIs handle authentication and authorization implement real time features with websockets and structure services in a way that supports growth and future changes without rewrites. • Mobile development I develop cross platform mobile applications for ios and android using react native This includes app architecture state management push notifications over the air updates and performance optimization to ensure stable behavior in production. • Data, cloud, and infrastructure I work with relational and non relational databases including postgresql mongodb redis firebase supabase dynamodb and vector databases when AI features require it. I design data models, optimize queries and ensure data consistency across services. I deploy and scale products on aws google cloud and azure I use containerization automated CI CD pipelines and infrastructure as code to keep environments predictable. Monitoring, logging, testing, and error tracking are always part of the setup, not an afterthought. • Architecture and technical depth From a technical perspective I work across the entire stack and understand how individual decisions affect the system as a whole. On the frontend I build component driven interfaces using react next.js typescript tailwind css and modern state management patterns combining server side rendering incremental static generation and client side data fetching to balance performance and flexibility On the backend I design APIs and services with node.js nestjs express and python using fastapi or flask implementing rest and graphql endpoints, authentication with jwt and oauth role based access control background jobs queue and real time communication via websockets I design data layers with postgresql mongodb redis and vector databases optimize queries and ensure consistency across services. For infrastructure I deploy with docker manage environments with kubernetes when needed, and build CI CD pipelines for automated testing and delivery. I work with aws services such as ec2 s3 lambda and rds focusing on security observability and cost efficiency as products scale. • Product mindset and results I approach development with a strong product mindset. I help define MVP scope map user journeys design onboarding flows and build SaaS platforms with multi tenancy access control and subscription logic using stripe and revenuecat I integrate analytics tools to track behavior funnels and conversion so decisions are based on data not assumptions. I have delivered products across fintech healthcare SaaS marketplaces real estate and edtech This includes MVPs that raised seed and series A funding as well as mobile applications with more than ten thousand active users. • What you can expect - Clear and transparent communication with regular updates - Clean and scalable code that supports growth and change - Fast execution without sacrificing quality or security - A technical partner who takes ownership of the roadmap, not just tasks Whether you need a full stack developer, an AI focused engineer, or a fractional CTO, I am ready to help you move from idea to a scalable product built for real users and long term growth. Ready to move from idea to a scalable product? Let’s talk 🚀

𝐄𝐱𝐩𝐞𝐫𝐭-𝐕𝐞𝐭𝐭𝐞𝐝: 𝐓𝐨𝐩 𝟏% 𝐢𝐧 𝐀𝐈-𝐃𝐫𝐢𝐯𝐞𝐧 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬, 𝐌𝐨𝐛𝐢𝐥𝐞, 𝐚𝐧𝐝 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 With over 19 years of experience as a full-stack software engineer, I specialize in integrating AI-driven solutions, automating complex systems, and delivering robust mobile and web applications. My journey as a technology leader includes launching over 50 applications through my dev shop, Materialize Labs, and serving as CTO for multiple startups. I currently sit on the board and advise emerging companies, leveraging my expertise to foster innovation and growth. 𝐊𝐞𝐲 𝐒𝐤𝐢𝐥𝐥𝐬 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 • 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: Expert in AI integration, including OpenAI, Anthropic, and cutting-edge open-source models like Llama and Mistral. Skilled in developing AI-driven automation systems to enhance productivity and decision-making. • 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Proficient in building robust, scalable web and mobile applications. Experienced with front-end technologies like React, Next.js, and Vue and back-end frameworks such as Node.js, PHP (Laravel), and Python (Django). • 𝐌𝐨𝐛𝐢𝐥𝐞 & 𝐂𝐥𝐨𝐮𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: Skilled in mobile app development using React Native, Swift, and Kotlin. Experienced with cloud infrastructure on AWS, DigitalOcean, and GCP for seamless deployment and scalability. • 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: Expertise in DevOps practices, ensuring efficient CI/CD pipelines and infrastructure management. Proficient with SQL, NoSQL, and DynamoDB to support data-driven applications. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐈 𝐔𝐬𝐞 • 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: OpenAI, Anthropic, Google, Open-source (Llama, Mistral) • 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React, Next.js, Vue • 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, PHP (Laravel), Python (Django) • 𝐌𝐨𝐛𝐢𝐥𝐞: React Native, Swift, Kotlin • 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: SQL, NoSQL, DynamoDB • 𝐃𝐞𝐯𝐎𝐩𝐬: AWS, DigitalOcean, GCP, Azure 𝐏𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡 • 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧 & 𝐋𝐞𝐚𝐝𝐞𝐫𝐬𝐡𝐢𝐩: As a seasoned engineer, I lead with innovation and a commitment to delivering quality solutions. My approach is rooted in strategic planning and agile methodologies to ensure successful project outcomes. • 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧: I prioritize clear, responsive communication and collaborative partnerships, ensuring that your vision is realized with precision and excellence. • 𝐂𝐨𝐧𝐭𝐢𝐧𝐮𝐨𝐮𝐬 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠: Passionate about lifelong learning, I continuously refine my skills and stay abreast of the latest technological advancements to bring the best solutions to your projects. Let’s collaborate to transform your ideas into powerful applications, whether they be AI-enabled, mobile, or web-based, that stand out in the industry. Together, we’ll leverage cutting-edge technology to drive your success.