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Backend Developer (NestJS / AWS) We’re hiring backend developers to build a multi-module operating system for an architecture & interior design studio—Sales CRM, AI-assisted site visits, design-gate workflows, project management, and operations. You’ll work on NestJS (TypeScript) APIs, domain modules, and workflow/state machines PostgreSQL data models, RBAC, audit trails, and document metadata Async jobs (SQS): notifications, reminders, AI site-visit report generation AWS: ECS/Fargate, RDS, S3, Cognito, SES, Redis Integrations (LLM/Bedrock, email) and solid API contracts for the [login to view URL] frontend What we expect Strong Node.js / TypeScript and REST API design Hands-on PostgreSQL, auth/RBAC, and production debugging Comfort with AWS (or equivalent cloud) and CI/CD Clear communication, ownership of features end-to-end, and quality under phased delivery Nice to have: NestJS, queue/worker patterns, file/upload pipelines, LLM/API integrations. Setup: Pair with 1 other backend + 2 frontend · PM-led phased delivery · ~7–9 month build.
Project ID: 40638826
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54 freelancers are bidding on average ₹68,151 INR for this job

Hi, I your "Backend Developer (NestJS / AWS)" project description in detail and undertood your requirements. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹45,000 INR in 10 days
7.5
7.5

Hi, We’re interested in working with your team on the backend development of this platform. We have strong experience with **Node.js, TypeScript, NestJS, PostgreSQL, AWS, Redis, REST APIs, RBAC, SQS, and AI/LLM integrations**. We can handle scalable APIs, workflow modules, database architecture, background jobs, AWS deployment, authentication, and integrations while working closely with your frontend and PM team. We’re comfortable with phased development and can take ownership of features end-to-end. Happy to discuss the project and your initial development phase.
₹56,250 INR in 7 days
8.1
8.1

Your PostgreSQL schema will become a bottleneck if RBAC checks run on every query without proper indexing and role caching. At scale, audit trails writing synchronously will also slow down your API response times. Quick questions - are you planning row-level security in Postgres or application-layer RBAC? And what's your expected concurrent user load during peak design review cycles? Here is the architectural approach: - NESTJS + TYPESCRIPT: Build domain-driven modules with CQRS pattern to separate read/write operations and prevent state machine conflicts across Sales CRM and project workflows. - POSTGRESQL + RBAC: Design composite indexes on user_roles and implement Redis-cached permission checks to avoid N+1 queries on every document access request. - AWS SQS + ASYNC JOBS: Queue AI report generation and email notifications through SQS with dead-letter queues and exponential backoff to handle Bedrock API rate limits gracefully. I've built similar multi-tenant systems for 2 SaaS platforms that scaled to 10K+ users without performance degradation. Let's schedule a 15-minute call to walk through your data model before implementation starts.
₹50,630 INR in 21 days
7.4
7.4

With over 5 years of experience in Full Stack Web and Mobile App Development, I have honed my skills in both frontend and backend development, making me a perfect fit for your multi-module operating system project. I am highly proficient in Node.js and TypeScript, Rest API design, and have hands-on expertise with PostgreSQL- all crucial components to ensure efficient data handling, workflow management, and document metadata. My familiarity with AWS too would enable seamless integration of AWS ECS/Fargate, RDS, S3, Cognito, SES and Redis components into the system as needed. Your project timeframe of 7-9 months aligns well with my integrated approach to development - from idea conception to deployment. Over the years, I have becomed skilled in efficient project management under phased delivery which is the approach you have envisioned.I assure you of on-time delivery while maintaining quality code that is scalable and maintainable. My strong ability in end-to-end development ensures crewing applications that are performant, user-friendly and most importantly reliable without compromise to quality. Building a solid working relationship through clear communication is another aspect I hold dear. I guarantee you transparent-frequent updates on progress backed by profound comprehension of what it takes to succeed in your project. Whether you need a Salesforce CRM or smooth running AI incorporated process management system; ![My name] can confidently deliver a winning solution!
₹56,250 INR in 7 days
5.6
5.6

NestJS with workflow state machines, PostgreSQL with RBAC and audit trails, SQS for async, and Bedrock in the mix — that is a well-specified stack, and the design-gate workflow is the part that will make or break the product. Where I would focus: - State machines defined declaratively, not as scattered if-statements on a status column. A design gate has real transitions with conditions and side effects, and it changes as the studio learns its own process. Declarative means changing it is safe. - RBAC plus record-level scoping enforced in the database rather than only in the service layer. In a CRM with client data, a forgotten guard should return nothing instead of another client's project. - Audit trails written on transition, immutable, with the actor and the reason. Retrofitting an audit trail is painful; building it in is nearly free. - SQS consumers written idempotent, because a reminder or an AI report will be delivered twice eventually. Proof: TypeScript and Node backends with PostgreSQL in production, Cognito-style authentication with scoped access, Docker and cloud deployment as standard, plus LLM integrations shipped in real products. Question: is the workflow/state-machine layer already designed, or is defining it part of the work? And is this a single hire or a team you are assembling? Martin
₹55,000 INR in 10 days
5.4
5.4

Hi, I am a Full Stack Backend Developer with strong experience in Node.js, TypeScript, NestJS, PostgreSQL, REST APIs, RBAC, async jobs, Docker, AWS, and scalable backend architecture. I have also worked with AI and LLM integrations, authentication, file processing, notifications, and complex business workflows. I am comfortable owning features end to end, collaborating with frontend and backend teams, and delivering clean, tested, production ready code for long term projects.
₹56,250 INR in 7 days
5.5
5.5

With over a decade of experience in the realm of software development, mobile apps and cloud computing, it's safe to say that I not only have the technical expertise you require but also the ability to provide holistic solutions for your project. At Web Crest, we specialize in precisely the kind of complex, multi-module systems your architecture & interior design studio project calls for. I have deep knowledge and practical experience in some of the core technologies you're looking for - NestJS (TypeScript), PostgreSQL, AWS - to name just a few. Whether it's building NestJS APIs, architecting PostgreSQL data models or leveraging AWS services like ECS/Fargate and RDS - I've got you covered. Additionally, my proficiency in tools like Cognito and Redis along with thorough understanding of CI/CD can ensure smooth workflow from end-to-end. Moreover, my familiarity with important elements like RBAC, audit trails and document metadata can help create secure and seamlessly functioning modules for your operations. I bring not just skills but a commitment to quality within a phased delivery timeline – ensuring smooth collaboration with both frontend employees and your PM. With this solid base of expertise, my bid is as much about my ability to understand your needs and deliver effectively as about simply executing technical tasks. Let’s discuss how we can build something exceptional for your business together!
₹75,000 INR in 5 days
4.7
4.7

Hi, I can help build the backend for your architecture/interior design platform using NestJS, TypeScript, PostgreSQL, and AWS. I have 10+ years of experience across backend engineering, AWS, DevOps, and production systems, with hands-on experience building scalable APIs, multi-tenant applications, authentication/RBAC, asynchronous workflows, and AWS infrastructure. I can contribute across: NestJS/TypeScript: REST APIs, modular architecture, validation, guards, workflow/state-machine logic PostgreSQL: schema design, relationships, indexing, query optimization, migrations Auth & Security: Cognito, JWT, RBAC, audit trails, secure API design AWS: ECS/Fargate, RDS, S3, SQS, SES, Cognito, Redis Async processing: SQS-based workers for notifications, reminders, document processing, and AI workflows AI integrations: AWS Bedrock/LLM APIs and structured AI-generated reports File workflows: S3 uploads, metadata management, secure access and processing CI/CD: automated testing and deployment pipelines Production: monitoring, logging, troubleshooting, performance and reliability Thanks
₹75,000 INR in 7 days
3.8
3.8

Sharjah, United Arab Emirates
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