Urgent Senior Backend Engineer: Code updates, RBAC & Alibaba Deployment

@Appworldz

Hi, Sahanaj here. I’ve secured APIs (JWT/RBAC) and deployed FastAPI/Node stacks on Alibaba Cloud with Nginx + HTTPS under tight timelines. Your budget is low for 36h urgent work; realistic is ₹20k–30k. I can deliver a lean, secure setup at ₹30k within 24–36 hrs. You’ll get clean RBAC, hardened APIs, live ECS deployment, and minimal docs. I focus on fast, production-safe execution. One question: is your backend primarily FastAPI, Node, or a mix (affects RBAC integration approach)?

@chiragardeshna

Hi there, A strong fit for this work, with proven experience implementing RBAC, securing APIs, and deploying production systems on cloud environments including Alibaba Cloud. Clear understanding of the requirement to update existing codebase, implement JWT-based RBAC, secure APIs, and deploy with Nginx and HTTPS within tight timelines. Hands-on expertise with FastAPI, Node.js, Python, and cloud deployments ensures clean implementation without disrupting current architecture. Risk is minimized through secure token handling, minimal-impact updates, and stable deployment with proper configuration and testing. Available to start immediately can deliver within 36 hours and share relevant RBAC and cloud deployment work. Recent work: https://www.freelancer.com/u/chiragardeshna Regards Chirag

@NEHABHAT92

Being an accomplished web and mobile development professional with more than 9 years of experience, I have accrued a wealth of knowledge in areas such as JavaScript, Node.js, and API security. Speaking particularly to your project needs, I have an impressive track record in similar RBAC/API work as well as deployment using cloud computing platforms such as Alibaba Cloud. My proficiency also extends to ensuring the compatibility and security of existing codebases during update tasks - something that aligns perfectly to your project demands. Crucially for you, I understand that time is of the essence. My efficient yet meticulous approach enables me to deliver quality work within tight deadlines without sacrificing any attention-to-detail. I assure you that even though this is an update and deployment task, I won't treat it as anything less significant. Instead, you can expect a swift execution with firm adherence to the project's scope and the highest standards of code quality. Additionally, there's potential for us to forge a long-term working relationship given your mention of scaling phase in future endeavors. This is something that I'm keen on exploring with committed clients like you. Thus, if given the opportunity, my mission would be to transform your ideas into real solutions in an exceptionally cost-effective manner without compromising on quality or support post-delivery. Thank you for considering my candidacy.

@souravsasmal14

As someone who thrives on urgent, high-pressure projects, your task fits well within my skillset and expertise. I have been extensively working as a Full-Stack Developer and DevOps Engineer, focusing particularly on Backend Development and Cloud Computing using Node.js. My proficiency in JavaScript and Linux will prove critical in implementing the essential RBAC system your project requires. Regarding API security, I have considerable experience working with JWT/RBAC, ensuring every implementation complies with industry-standard practices. This is validated through my similar past works which mirror the requirements of your project. Additionally, your need for a swift turn-around aligns perfectly with my own commitment to delivering clean code and rock-solid infrastructure rapidly without compromising quality. Regarding cloud deployment, while Alibaba is your preferred provider, my adaptable approach allows me to work effortlessly across several cloud platforms. Alongside my robust experience in deployment nuances, my excellent knowledge of Nginx and configuring HTTPS will guarantee a seamless deployment process on Alibaba Cloud ECS. Finally, using my expertise with containers, this deployment will be enveloped efficiently for scale and secured it's operation from production start to end line. All these factors underline why selecting me as your Senior Backend Engineer is akin to embracing a built-in success strategy for your project. Let's get started!

@aidigitalhub

Bringing my extensive expertise in cloud computing, particularly with Alibaba Cloud, I am well-prepared to handle the tasks you've outlined effectively. Having built clean, efficient RBAC systems for multiple APIs before, you can trust me to move swiftly but meticulously through your codebase. With strong skills in FastAPI, Node.js, Python and JavaScript, I provide a diverse yet highly specialized approach that can tailor-fit your project. Moreover, my proven track record in API security including JWT/RBAC makes me perfectly suited to implement the necessary updates securely and efficiently. This, coupled with my cloud deployment experience using Alibaba Cloud will ensure a seamless integration into itsm system. Detailed-oriented when it comes to configuration and deployment processes such as setting up Nginx and HTTPS guarantees that your APIs will be production-ready and in turn enhance the functionality of your AI agent. Lastly, I understand the urgency of this project and I assure you a prompt delivery within 36 hours without compromising on quality. My solutions aren't just for quick fixes but are geared towards long-term efficiency of system operation. By choosing me for this project, not only do you get a highly skilled engineer but also someone who values ongoing relationships and anticipating potential needs. Let's kick-start this project with efficiency and diligence that is paramount to your business success!

@mahads31

As an experienced backend engineer with a focus on building scalable and future-ready digital solutions, I am confident that I have the skills needed for your project. I have a proven track record in implementing RBAC using JWT, securing existing APIs and integrating them with various systems – all tasks much akin to what you require. I am also well-versed in cloud deployment and have experience in Alibaba Cloud (a plus for you) as well as huawei cloud. My forte in FastAPI, Node.js, and Python gives me a unique competency in tackling diverse elements of your project. Couple that with my commitment to agile and reliable execution, I assure you of a clean RBAC implementation and secure, production-ready APIs delivered within your tight timeline. Most importantly, my approach puts client satisfaction at the core. I don't just write code – I carefully craft digital solutions that align with your business needs and deliver tangible results. If given this opportunity, I can execute the code updates quickly while ensuring minimal disruption and timely deployment on the appropriate cloud platform. Let's get started ensuring your AI backend is efficient and secure to take your business higherivated through automation workflows, integrations, smart architecture design, and future-ready technology choices.

@yasinu8

Greetings I can surely help you for Code updates, RBAC & Alibaba Deployment I am in the IT industry since more than a decade and serve so many clients in building and rebuilding websites, software, and applications I have strong hands-on different cms like webflow, Wordpress, shopify, squarespace, wix and on different programming languages like PHP, Laravel, React, Node.js, HTML, CSS, And I did the migration from HTML to click funnels. I have made so many websites (E-commerce, WordPress, Classified admin, WooCommerce, etc.), bots, softwares, and Mobile applications (Android, IOS, and Huawei Play store) in my entire career. I have strong hands on both the front end and back end. Currently, I am part of the team who are dealing with miscellaneous tasks in dubizzle and Mzad Qatar including design and layouts and they both have more than 1 million users. I believe that you are looking for a web designer and for sure you will get your end desire result with plagiarism-free work and with better quality as I am assuring you this. Package deals can also be done for long-term collaboration as per the client's requirement. Kindly do come on chat so that we can discuss project details further more.

@Mayanks010

Hi, I have experience in developing websites and can help you build a clean, responsive, and user-friendly solution based on your requirements. To provide an accurate timeline and cost, I’d like to understand a few details such as features, design preference, and platform. Let’s connect on chat so I can share relevant work and discuss the best approach for your project. Best regards, Mayank

@Hrolgar

JWT middleware sitting in front of your existing routes means no rewrites to current endpoint logic: agent_id and role claims come in, a guard checks them against a policy table, handlers stay untouched. For the Alibaba ECS side: Ubuntu 22.04, systemd, Nginx reverse proxy, Let's Encrypt or Alibaba SSL. Saudi region adds latency to EU/US endpoints, so I pin outbound calls and set tight timeouts on the ITSM integration hooks. M1: JWT auth + role schema, INR 2375, 2d. M2: RBAC guard + policy table + per-agent permission wiring, INR 2375, 2d. M3: ITSM integration (inbound webhooks + outbound calls, configurable endpoints), INR 2375, 2d. M4: ECS deploy, Nginx + HTTPS, handoff docs, INR 2375, 1d. What auth layer exists today, and is there an agent/user table to extend or are we starting fresh?

@ssldevmaster

Hi, I can easily DO your work IN 24 HOURS, DM me now to get started, PRICE NEGOTIABLE 100% Work satisfaction is provided

@letswork92

Hello, I see that you need an experienced backend engineer to implement critical updates, particularly in developing RBAC and deploying on Alibaba Cloud. The urgency of this task is clear, and I understand the importance of having a secure and scalable API infrastructure. With over 12 years of experience in backend development using FastAPI, Node.js, and Python, I have successfully implemented similar RBAC solutions using JWT for various clients. My expertise includes securing APIs effectively while ensuring seamless integration with existing systems. Additionally, I have hands-on experience deploying applications on Alibaba Cloud ECS and configuring Nginx with HTTPS. Given your tight timeline of 24-36 hours, I'm confident in my ability to deliver clean code updates and a live deployed API efficiently. Could you please provide more details about the specific requirements for the RBAC implementation? Looking forward to collaborating! Best regards, [Your Name]

@manoval09

I can't generate a strong proposal yet—**the project description is incomplete**. It cuts off at "I hav..." To write a proposal that passes Val's standards (especially the hard rule to mirror the client's actual pain with a specific detail from their brief), I need the **full project description**. Please provide: - The complete description (what's the full ask after "I hav..."?) - Any additional context about the RBAC scope, Alibaba services involved, or timeline Once I have the complete brief, I'll write a tight, technical proposal that references specific requirements and demonstrates relevant expertise.

@SARANVINU

Sir, I'm ready to do this work. I can start immediately. Please, come for a discussion. I'm capable for this project. Feel free to discuss with me.

@SamreenCoders

Hello, I understand this is an urgent update + deployment task, not a rebuild, and needs clean execution within 36 hours. Confirmation Yes, I can deliver within 24–36 hours and start immediately. Relevant Experience • Implemented JWT-based RBAC in FastAPI/Node systems (role + permission layers, middleware guards) • Secured APIs (auth, rate limiting, validation, ITSM integrations) • Deployed apps on cloud (Alibaba/AWS) with Nginx + HTTPS + production configs What I’ll Do • Add RBAC (agent-wise roles) using JWT without breaking existing logic • Secure APIs (auth checks, validation, headers) • Deploy on Alibaba Cloud ECS (Ubuntu/CentOS) • Configure Nginx + SSL (HTTPS) • Ensure APIs are stable and production-ready Deliverables • Updated code with RBAC • Live deployed API (Alibaba Cloud) • Minimal documentation I focus on fast, clean, production-safe changes without unnecessary refactoring. Feel free to message me so we can start immediately. Warm regards, SamreenCoders

@arshkumar213

I Can build a low-latency trading engine using Python 3.13 (free-threaded) with shared memory IPC, CPU core pinning, and precise latency tracking. Includes React dashboard via WebSocket, kill switch, and Docker deployment. Focus on performance, stability, and clean scalable architecture. Ready to start.

@Sadiyasyeda24

Hello, I have read your project details and I get what you need. I am a skilled freelancer with 4 years of experience in JavaScript, Node.js, Backend Development. See my profile for recent work. Let's connect in chat to discuss more. Warm regards, Syeda Tahreem

@Areebmehdi110

This is exactly my stack and I can start immediately. Here's what usually goes wrong with RBAC retrofits on existing codebases. Devs add role checks at the route level but miss middleware-level enforcement so some endpoints remain unprotected. JWT tokens get issued without proper expiry and refresh logic so either users get logged out constantly or tokens never expire creating a security hole. And Nginx config for HTTPS gets set up without proper headers and redirect rules so mixed content warnings break the frontend. My approach: implement RBAC with JWT at the middleware level so every API endpoint is secured by default not opt-in. Role permissions scoped per AI agent as required. Secure existing APIs without rewriting them, just wrapping with proper auth guards. ITSM integration connected cleanly. Deploy on Alibaba Cloud ECS with Nginx configured for HTTPS, proper SSL, security headers, and reverse proxy to your FastAPI backend. Production-ready with minimal documentation covering deployment and access. I work with FastAPI, Python, Node.js, and JWT authentication daily. I've built production systems with role-based access control and deployed backend services on cloud infrastructure. My RAG-based AI backend uses FastAPI with the exact patterns needed here. Can deliver within 36 hours. Ready to start now. Can you share the codebase and requirements spreadsheet?

@mevadaManan19

I’m Ready to Secure & Deploy Your Backend in 36 Hours Hi Client , I understand this is an urgent update + deployment task, not a rebuild — I can jump in immediately and execute cleanly. Here’s how I’ll handle it:
 • Implement robust RBAC (agent-wise) using JWT
 • Secure existing APIs without breaking current logic
 • Integrate seamlessly with your ITSM system
 • Deploy on Alibaba Cloud ECS (Linux)
 • Configure Nginx + SSL (HTTPS) for production
 • Ensure APIs are stable, secure, and production-ready Relevant experience:
 • Built JWT-based RBAC systems for SaaS platforms
 • Secured and scaled APIs in Node.js & Python (FastAPI)
 • Deployed apps on AWS, GCP & similar cloud environments

 I’m Manan Mevada, a Full Stack Developer with 6+ years of experience in backend systems, API security, and cloud deployments.
 Let’s connect — I’ll ensure fast, clean, and reliable execution. – Manan Mevada

@hugog17

Hello, I can take your existing backend, implement clean JWT-based RBAC, secure the current APIs without rewriting them, and deploy everything to Alibaba Cloud within your 24–36 hour window. Since the codebase is already working, this is exactly the kind of fast update + production deployment task I can handle efficiently. I have experience with FastAPI/Node.js backends, API hardening, JWT/RBAC, Nginx/HTTPS setup, and production deployments on cloud servers. I can work directly on the current codebase, apply the required updates from your spreadsheet, integrate the security layer carefully, and deliver a live production-ready API with minimal but clear documentation. For your screening: 1. Similar work: backend updates, JWT/RBAC implementation, API protection, and production hardening on existing systems. 2. Cloud deployment: experience deploying APIs with reverse proxy, SSL, process management, and production configuration on Linux cloud servers. 3. Yes — I can start immediately and deliver within 36 hours. If the scope is shared right away, I can move directly into execution.