Node.js Engineer – Secure AI API Proxy

@trm66614

Hi there, Good evening I am Talha. I have read you project details i saw you need help with Node.js, Express JS, OpenAI, JavaScript, SQLite, API Development, AngularJS, Redis, Backend Development and API Integration I am excited to submit my proposal for your project, which focuses on a comprehensive project plan. To begin, we will thoroughly understand your project's objectives and requirements, ensuring alignment on scope and goals. We will provide a clear and realistic project timeline with manageable milestones to ensure timely completion Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan

@DeveloperStation

Hi there, We’ve built similar internal tools that securely connect multiple users with AI models while managing API keys and usage limits. For example, we developed a product called Descripio, where we integrated OpenAI and Azure AI with a similar proxy system. We can also add features like user management, team management, and billing to enhance your product. As a team, we bring more than just dedicated developers; we provide a mix of front-end, back-end, and DevOps expertise, ensuring you get a well-rounded solution. Let’s schedule a 10-minute introductory call to discuss your project in detail and see if I’m the right fit. Feel free to message me anytime—I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best, Adil

@ayesha0124

Hi there, I know bolt! With a solid background in Node.js and API development, I'm excited about the opportunity to create a secure AI API proxy for your project. I understand the importance of securely handling API keys, preventing exposure, and enforcing user-specific limits while maintaining a seamless connection to bolt.diy. Having worked on similar projects, I will implement a robust backend using Express or Fastify, ensuring that all requests are authenticated and logged. The usage tracking and quota enforcement will not only help monitor costs but also keep user interactions efficient. I'll ensure that no sensitive information is leaked and provide clear setup and usage documentation. I'm ready to start on this internal tool that aligns perfectly with your requirements. Let's discuss any specific details you have in mind! Best regards,

@josec298

I know bolt — and I can build the secure Node.js AI proxy you described so your app talks only to your proxy, never directly to OpenAI or Anthropic, while your keys stay locked in environment variables and per‑user limits are strictly enforced. My plan is to implement an Express/Fastify backend with Redis-based rate limiting and quotas (per user, per model, per day/month), log every request with user ID, model, token usage, and estimated cost into SQLite/Postgres, and expose clean OpenAI/Anthropic‑compatible endpoints so you can drop in the proxy URL with minimal changes to your app builder. You’ll get a working proxy server, env‑driven API key configuration, a simple quota system, structured usage logs, connection instructions for your app, and a clear README—no keys in the repo, no frontend, just a hardened internal gateway you and your helpers can safely share.

@andriik18

Hi, I know bolt. I have over 7 years of experience in backend development, specializing in API integration and secure system design. I will create a Node.js API proxy that ensures your API keys are securely stored and never exposed. With features like per-user quotas, rate limits, and detailed logging, I'll ensure the system meets all your requirements while adhering to best practices. I can deliver this project within 14 days, including setup instructions and clear documentation. Best regards, Andrii

@krisk63

Hi there, I'm Kristopher Kramer from McKinney, Texas. I’ve worked on similar projects before, and as a senior full-stack and AI engineer, I have the proven experience needed to deliver this successfully, so I have strong experience in API Integration, JavaScript, Express JS, Backend Development, API Development, Redis, AngularJS, Node.js, OpenAI and SQLite. I’m available to start right away and happy to discuss the project details anytime. Looking forward to speaking with you soon. Best regards, Kristopher Kramer

@thomasb726

⭐ If you award me, your smile shows up ⭐ Hi , Your project immediately stood out to me—it closely matches work I’ve completed successfully in the recent past. The core challenges, structure, and technical requirements are very familiar, with only a few unique elements that align perfectly with my expertise. This is great news for you: it allows me to skip the usual ramp-up time, avoid trial-and-error, and deliver clean, high-quality results quickly and confidently. I bring hands-on experience with API Development, Node.js, AngularJS, Redis, API Integration, JavaScript, SQLite, Backend Development, OpenAI and Express JS, along with proven workflows and best practices refined through multiple similar projects. You can view a directly relevant example in my portfolio here: https://www.freelancer.com/u/thomasb726 I’d be happy to discuss your specific goals in more detail and share tailored ideas based on what has worked best in comparable scenarios. Why clients choose—and continue working with—me: • Clear, proactive communication so you always know where the project stands • Strong respect for your deadlines, budget, and business reputation • Responsive, approachable, and focused on a smooth, stress-free process • Reliable post-delivery support that often leads to long-term partnerships If you’re looking for precise execution, high-quality results, and a dependable long-term partner, I’d love to connect and help bring your project to life. Best regards, Tom

@MSaadJaved

Hi Marquis H., I am very interested in building the secure proxy you described. I know bolt. I have strong Node.js backend experience with Express and Fastify, and I have used Redis for rate limits and Postgres or SQLite for usage logs. I have built bring-your-own-key systems that never expose keys, and I can enforce per-user quotas, rate limits, usage logging, and forwarding to OpenAI and Anthropic while returning only the model response. Please see my profile and portfolio for similar work. Quick question: do you prefer Redis + Postgres or Redis + SQLite for the initial setup? Best regards, Saad J.

@rogelitoc

Hello, how are you? I've carefully reviewed the description and I am confident I can deliver it on time. I understand that you need a secure AI API proxy that effectively manages API keys and user usage, and I have hands-on experience in Node.js, Express, and usage logging technologies. Here is my approach as follows: - Develop a robust Node.js backend using Express or Fastify to ensure efficient handling of requests from bolt.diy. - Implement a bring-your-own-key architecture to securely manage API keys, stored only as environment variables, to prevent any exposure. - Set up a comprehensive user quota system, including daily/monthly limits and rate limiting, while logging all necessary usage data for tracking. I am ready to start immediately and can deliver the result fast. I'd love to discuss in more detail. Best Regards.

@robertw0802

Hi there, I’m Robert, a Senior Full-Stack & AI Engineer with over 10 years of experience architecting and delivering secure API solutions, emphasizing backend integrity and user management. I have successfully built a Node.js-based API proxy that ensured secure communication between client applications and AI model providers, handling user authentication and usage tracking effectively. My expertise in Node.js, Express, and database integrations allows me to create robust solutions that meet your requirements of secure key management, user quotas, and detailed usage logging. I can complete this project perfectly and deliver scalable, production-ready results. My commitment to clean architecture, structured documentation, and CI/CD practices assures you a reliable and maintainable system. Let’s connect to refine your requirements and begin building a solution that exceeds expectations. Could you clarify any specific preferences for the database setup to log usage?

@naseeb1995

I know bolt! As a seasoned AI and Automation Specialist, I possess the technical proficiency and the experience required to build your secure AI API proxy utilizing Node.js, specifically Express or Fastify. Over my 10-year career, I have successfully designed and implemented AI systems tailored to specific needs which I believe is instrumental in executing your unique requirements. Regardless of the stack you ultimately choose, be it Postgres for usage logs or Redis for rate limits and counters, my dexterity extends to adaptable solutions. Furthermore, my extensive background in building business automation systems coupled with my in-depth knowledge of AI-driven processes will enable me to seamlessly integrate your chosen providers, OpenAI and Anthropic while strictly enforcing per-user usage limits. My delivery emphasis aligns completely with your explicit non-requirements - a No-Frontend UI approach, no payment processing nor public user signup entanglements. My focus will be on crafting an internally robust system that ensures the utmost confidentiality by safeguarding your keys while efficiently logging all relevant information. Trust me with this project and I assure you that every detail outlined in your project description will be treated with utmost care and professionalism. My bidding price reflects not just the value of my skill set but the dedication and robustness you'll receive within a prompt timeframe. Let's !........

@artemb35

Hi there, I understand that your main goal is to develop a secure API proxy for AI applications using Node.js, ensuring robust performance and security. In my previous role, I successfully designed and implemented a secure Node.js API that handled over 10,000 concurrent requests, resulting in a 40% increase in system efficiency. Additionally, I integrated JWT authentication, which enhanced security and reduced unauthorized access incidents by 50%. To address your needs, I will leverage my expertise in Node.js to build a secure API proxy that incorporates best practices for security and performance. I will also implement thorough testing and monitoring to ensure reliability and scalability as your user base grows. I would be happy to discuss your needs and get started right away. Best regards, Artem

@oskarm42

Hi Marquis H., How are you! I am a skilled AI Full-Stack Engineer specializing in backend and API development. I design and implement reliable RESTful and GraphQL APIs using Python and Node.js, with a strong focus on clean architecture and long-term maintainability. I have built backend systems handling authentication, business logic, background processing, and third-party integrations. My approach prioritizes clear API contracts, proper validation, structured database design, and predictable error handling so systems remain stable as they scale. I work closely with frontend or client applications to ensure APIs are easy to integrate and perform reliably under real usage. Please send a message to discuss your backend and API requirements. Talk to you soon, Oskar M.

@radlabgaming

Hi I’ve carefully reviewed your requirements and really interested in this job. This is a U.S.-certified developer with strong experience in AngularJS, OpenAI, JavaScript, SQLite, API Development, Node.js, API Integration, Redis, Express JS and Backend Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. For more details Chat with us Bryce Moral.

@wouters4

Hello there , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in SQLite, Redis, API Integration, JavaScript, Node.js, Express JS, Backend Development, AngularJS, OpenAI and API Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thank you

@johncyruss

As an experienced node.js engineer and API specialist, building your secure AI API proxy is right within my wheelhouse. I have a deep understanding of Express and Fastify, and have worked with proxys and rate limits before, using Redis and SQLite or Postgres. My dedication to security is perhaps one of my greatest strengths, I'm proficient in bring-your-own-key architecture which stores environment variables. This means I can guarantee your API keys will never be exposed to users or clients. Moreover, my talent for solving problems extends beyond just coding. I am ready to log user ID's, used models, consumed tokens, and estimate costs. Facilitating clear usage patterns will help manage per-user usage limits efficiently. Additionally, shading light on the provider-agnostic design sets me apart from other candidates; OpenAI first with Anthropic support. Another part of this project that I am excited about is the logging entity parts like token limits, rate limits etc in database as structured logs which are evident of the modern design patterns project architecture where everything can be controlled at non frontend heavy level.

@Coredev794

Hi, We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on JavaScript, Node.js, Express JS, SQLite, Redis, AngularJS, Backend Development, API Development, API Integration, OpenAI Lets connect in chat so that We discuss further. Thank You

@tmiamba

With my solid background in backend development, extensive experience with JavaScript and Node.js, and your satisfactory project understanding as indicated by the phrase "I know bolt", I am exactly the Node.js Engineer you need for this project. Having built similar systems, including a Smart Entry and Event Management System backed by UNDP where security factors were vital, I understand the importance that your API proxy holds. Proficient in ExpressJS as well as Fastify, I can ensure your proxy handles authentication, enforces per-user limits and tracks usage with ease. My previous responsibilities in setting up an environment-based API key configuration and creating user quota system align perfectly with what you are seeking. Moreover, proficiency with Redis and SQL databases like SQLite or Postgres equips me to set up rate limits, counters, and storage for usage logs skillfully. Above all these skills listed is a passion for innovation, problem-solving, and continuous learning. Combining this with my experience in end-to-end system architecture makes me uniquely qualified to provide the secure and efficient AI API proxy you require. Let's join our expertise towards bringing this integral internal tool to life in order to fuel the smooth functioning of your operations. How about we get started and create another meaningful impact together?