Senior Full-Stack / System Architect – Build INTEGRIA (Governed AI SaaS Platform)

@Microlent

This is exactly the kind of governed, rules-first SaaS system I’m experienced with. I’ve built multi-tenant SaaS platforms where determinism, auditability, and explainability were non-negotiable. Your constraint that AI must never make decisions or scores is the correct architectural choice, and I’m fully aligned with it. AI should generate signals, nothing more. All evaluation logic belongs in code-locked, testable rule engines. I’m comfortable designing: - Strict tenant isolation with RBAC - Deterministic rule engines with full traceability - AI as a bounded input layer only - Voice flows limited to speech-to-text, no inference - End-to-end audit logs, exports, and security controls I follow detailed specs closely and am happy to confirm acceptance of your Developer Pack before starting. You’ll find relevant SaaS, rule-engine, and regulated-system work in my attached portfolio. Let’s open the chat so I can review the Developer Pack, confirm the stack, and align on timeline and cost. If you want a partner who treats governance and determinism seriously, we’ll work very well together. Best, Jenifer

@irsolutions

With over a decade of experience in web and mobile development, I understand the critical need for a Senior Full-Stack/System Architect to lead the development of your INTEGRIA AI SaaS Platform. Your project requires a multi-tenant SaaS architecture with a deterministic rule-based evaluation engine, and I am well-equipped to meet these needs. In the realm of AI integration and system architecture, I have successfully delivered projects similar to yours in the past. My expertise in building secure, production-ready code with meticulous documentation aligns perfectly with your requirements. I have a track record of implementing complex AI solutions while ensuring that all decisions are rule-based and explainable, reflecting your non-negotiable criteria. For your project, I propose leveraging my skills in Full Stack, SaaS, system architecture, AI integration, security, and DevOps. With a clear timeline, cost estimate, and a thorough understanding and acceptance of your Developer Pack, I am fully prepared to take on the challenge of developing your AI SaaS platform. If you find my proposal aligns with your vision, I encourage you to reach out to discuss the next steps. I am excited about the opportunity to bring your project to life.

@nikhilgarg96

With my extensive experience in full-stack development and system architecture, I am confident that I can deliver the high-grade quality SaaS platform you require. Whether it's the PHP Backend or Node.js, Python/Django Backend, my strong command over these languages will ensure that all scoring remains rule-based as you've explicitly demanded. Moreover, having built CRM and ERP systems in the past, I have a thorough understanding of the essence of multi-tenant architecture and RBAC. My expertise in incorporating voice interview flows using speech-to-text technology will enable a smooth user experience through the platform. Regarding security and data handling, I’m familiar with implementing stringent data protocols, creating audit logs, and ensuring seamless exports. This combined with a keen eye for documentation and production-ready code will result in a highly secure and robust SaaS platform. A proficient problem-solver by nature, I always prioritize providing solutions that are both technologically sound and explainable, fitting exactly with your requirement of deterministic AI. Thanks....

@Rekhathakur

With both comprehensive technical knowledge and over a decade of experience in designing and building complex, bespoke software solutions, my team at WellSpring Infotech is well-suited to tackle your project—constructing a production-grade, multi-tenant SaaS platform with an explicit focus on creating a governed AI environment. As our portfolio boasts successful projects in healthcare, fintech, and real estate among others, we are well-versed in handling sensitive information with the utmost security. Notably, our skill set aligns perfectly with your outlined requirements for the INTEGRIA platform. We've built robust rule-based evaluation engines and understand why their determinism is crucial to your development goals. Additionally, we're adept in deploying AI solely for generating signals and not making decisions or scoring—a practice we'll ensure within your product. Our understanding of secure data handling, audit logs management, and exports rounds up our qualificatory skills. Thanks....

@kamran2012

Hello, I'm a seasoned full-stack developer with extensive experience in building multi-tenant SaaS platforms. I recently led a project developing a governed AI platform with a deterministic rule-based engine, aligning perfectly with your core requirements. For INTEGRIA, I propose using a tech stack of React + Node.js for the front-end and back-end, alongside PostgreSQL for a scalable database solution. I recommend leveraging Kubernetes for container orchestration to ensure robust DevOps practices. This setup supports multi-tenant architecture and secure data handling, essential for your project. The AI component will be strictly for signal generation, adhering to your non-negotiables. I will implement RBAC for secure access, audit logs, and ensure that all scoring remains rule-based and fully explainable. I estimate a timeline of 12-14 weeks for a production-ready platform, including thorough documentation. My cost proposal will be aligned with the detailed scope once I review the Developer Pack. Do you have a preferred cloud provider for deployment? And can we schedule a call to discuss any specific preferences or concerns related to integration and security? Looking forward to collaborating on this innovative SaaS solution. Thanks and best regards, Kamran

@Julian29

Hello I bring 10+ years of experience in designing and building complex SaaS platforms, including multi-tenant systems with secure data handling and RBAC. I am confident I can manage this project from architecture to deployment, following your Developer Pack strictly. I will work full time for you. *** Multi-tenant SaaS with role-based access control for secure, governed AI usage *** Deterministic, explainable rule engine fully code-locked *** Voice interview flow using speech-to-text, audit logs, and exportable data My approach emphasizes clean, production-ready code, strong documentation, and scalable architecture. AI will be strictly used for signal generation only, with all scoring and logic fully explainable via rules. Unlimited UI and workflow revisions are included until full satisfaction, plus post-launch support. Julian

@Herculesz

Hi I build production-grade multi-tenant SaaS using TypeScript/Node, PostgreSQL, Redis, and cloud-native services with strict RBAC. A major technical risk in governed-AI systems is accidental decision leakage where models influence scoring or logic. I prevent this by isolating AI as a signal-only service behind typed contracts while a code-locked deterministic rule engine performs all scoring. The rule engine will be versioned, test-covered, and explainable with trace logs that show every rule path taken. Voice interviews will use secure speech-to-text, streaming transcripts into the rule engine without any AI-side decisions. Data will be tenant-isolated with row-level security, encrypted storage, and full audit logs for every rule execution and data access. Exports will be reproducible from immutable event logs so every result can be re-derived deterministically. The platform will be documented with API contracts, rule specs, and security posture for production readiness. Thanks, Hercules

@einnovention

As the founder of Einnovention, a digital service provider with a track record of over 248 completed projects including several SaaS and system architecture ones, I am well-versed in building the kind of platform you need. SaaS is our forte. We specialize in creating intricate multi-tenant architectures with focused RBAC. Specifically, for your project which requires an Ai-integrated Sistema with an immutable rule engine, we have the expertise to ensure that the AI is strictly limited to signal generation. We further excel at security measures, audit logging, and exporting. Our proficiency in full-stack design guarantees that not only will high-functioning code be produced but also that it will be abundant commented as documentation is an important element of your project requirements. We've had immense practice in creating production-ready codes and are confident in delivering bug-free and scalable solutions. Finally, our open-source API development, software architecture experience, bootstrapping skills aligns precisely with your project needs. Hence, I assure you that as part of my team working on your project we will meet your timeline and be within your project cost as discussed before taking the job. Let's work together to build INTEGRIA into exceeding your vision!

@corpmember29

HELLO, WE HAVE BUILT PRODUCTION-GRADE, GOVERNED SAAS PLATFORMS AND CAN SHARE RELEVANT ARCHITECTURAL EXPERIENCE. WE FULLY UNDERSTAND THAT INTEGRIA IS NOT A GENERIC AI APP AND THAT ALL LOGIC, SCORING, AND DECISIONS MUST REMAIN DETERMINISTIC, CODE-LOCKED, AND EXPLAINABLE, WITH AI USED STRICTLY FOR SIGNAL GENERATION ONLY. WITH 10+ YEARS OF EXPERIENCE IN FULL-STACK DEVELOPMENT, SYSTEM ARCHITECTURE, SECURITY, AND MULTI-TENANT SAAS, I CAN DESIGN AND IMPLEMENT A ROBUST PLATFORM THAT STRICTLY ADHERES TO YOUR DEVELOPER PACK AND NON-NEGOTIABLE CONSTRAINTS. I HAVE HANDS-ON EXPERIENCE WITH MULTI-TENANCY, RBAC, AUDIT LOGGING, SECURE DATA PIPELINES, VOICE → SPEECH-TO-TEXT FLOWS, AND RULE-BASED EVALUATION ENGINES WHERE TRANSPARENCY AND GOVERNANCE ARE CRITICAL. I WILL DELIVER CLEAN, PRODUCTION-READY CODE, CLEAR DOCUMENTATION, AND DEPLOYMENT-READY INFRASTRUCTURE. I CONFIRM THAT I HAVE READ AND ACCEPT THE DEVELOPER PACK REQUIREMENTS. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PRODUCTION RELEASE. I AM READY TO DISCUSS STACK, TIMELINE, AND COST IN DETAIL AND START IMMEDIATELY. I EAGERLY AWAIT YOUR POSITIVE RESPONSE. THANKS.

@vipinjain1213

Hello!! We can build INTEGRIA exactly as a governed, production-grade SaaS platform—with deterministic logic at the core and AI strictly limited to signal generation, not decision-making. I’m aligned with the intent of this system: rules decide, AI assists—never overrides. Scoring, evaluation, and outcomes will remain fully explainable, code-locked, and auditable, while AI is used only where appropriate (e.g., speech-to-text or feature extraction). I fully accept and will strictly follow the Developer Pack and all non-negotiables: No AI-based decisions, scores, or logic mutation Deterministic, versioned rule engine only Full audit trails, exports, and secure data handling High-level approach: Multi-tenant SaaS with strict RBAC React-based frontend with role-aware UX Backend in Node.js Deterministic rule engine (locked, testable, explainable) Voice interview flow using STT only PostgreSQL with immutable audit/event logs Containerized deployment with CI/CD and environment isolation I’m happy to share a clear timeline, cost, and final stack after reviewing the Developer Pack. We can start immediately — I will ensure clear, daily communication and fast turnaround. You’ll always know the exact progress. Please connect over chat so we could discuss the details.

@mrresearcher99

Hi, I’m interested in this project and have 5+ years of full-stack experience using MERN and MEAN stacks, building secure, scalable multi-tenant SaaS platforms with strict RBAC, audit logs, and governed workflows. I fully understand and accept your non-negotiable requirement: AI will be used only for signal generation (e.g., speech-to-text). All scoring, evaluation, and decisions will be handled by a deterministic, explainable, code-locked rule engine with full traceability. Relevant Experience Multi-tenant SaaS architecture Role-based access control and audit logging Secure API design and data governance AI integrations without logic delegation Production-ready deployments and documentation Proposed Tech Stack Frontend: React.js Backend: Node.js (NestJS / Express) Rule Engine: Custom deterministic service AI: Speech-to-Text only Database: PostgreSQL / MongoDB Auth: JWT + policy-based RBAC DevOps: Docker, CI/CD Timeline & Cost Initial estimate: 6–8 weeks end-to-end. Cost can be milestone-based or fixed after reviewing the Developer Pack. I confirm that I have read, understood, and accept the Developer Pack and all constraints. Looking forward to discussing next steps. Best, Bhargav

@shanec35

Hi there, I’ve carefully analyzed your requirements for a production-grade, multi-tenant SaaS platform with governed AI and a deterministic evaluation engine. I’ve previously built enterprise SaaS systems with strict RBAC, audit logging, explainable rule engines, and AI used only as a signal layer, where all decisions and scoring were fully code-locked and regulator-friendly. The key aspects of your project are tenant isolation, deterministic and explainable scoring, AI strictly limited to signal generation, secure voice-to-text ingestion, and production-ready security and DevOps practices. I’ll design a clean multi-tenant architecture, implement a fully transparent rule engine, integrate AI only for non-decision signals, build the voice interview flow using speech-to-text, and deliver full auditability, exports, and documentation while strictly adhering to the Developer Pack. I’m available to begin work immediately and committed to delivering a secure, maintainable, production-ready platform within the shortest possible timeframe. Best regards, Elenilson

@paul612

With my wealth of experience spanning over 20 years, I have honed the requisite skills to excel at this SaaS project. Having built and maintained robust, secure web and mobile applications, I am well-versed in the intricate dynamics of a multi-tenant SaaS architecture you're aiming for. This aligns perfectly with my skills in system architecture and API integration. Notably, over the past few years, I've dedicated a significant portion of my professional pursuits towards AI governance and deterministic rule-based systems; firmly believing that AI should be used just to stimulate signals rather than making actual decisions. This philosophy is in perfect sync with your project's core requirement. Demonstrating a knack for detail and precision, I can meticulously follow your provided developer pack while producing production-ready code + documentation. Regarding the timeline and cost offered, rest assured that I will combine efficiency with cutting-edge technology to deliver swift results without compromising the quality. In terms of tech stack; being familiar with cloud computing, DevOps, and having an extensive knowledgebase in SaaS-related tasks, there'll be no hitches on that front either. I'm truly excited about this endeavor as it aligns with my passion to introduce innovative IT solutions that drive business transformation and operational excellence.

@maximg10

⭐Hi, I’m ready to assist you right away!⭐ I believe I’d be a great fit for your project since I have extensive experience in developing multi-tenant SaaS platforms with robust RBAC systems and deterministic, explainable rule engines. My background in system architecture and AI integration aligns perfectly with the core requirements of this project, ensuring secure data handling and scalable solutions. This project will solve the client's need for a production-grade SaaS platform with governed AI and a rule-based evaluation engine, addressing the critical aspects of data security and explainable AI.

@techsty2014

Hello, I've built several multi-tenant SaaS platforms with RBAC and audit systems over the past 8 years. Your governed AI approach stands out - using AI strictly for signal generation while keeping all scoring rule-based and deterministic is smart architecture for compliance and explainability. I understand the core requirements: multi-tenant SaaS with role-based access, code-locked rule engine for all decision logic, AI limited to signal generation only (no scoring/decisions), voice interview flow with speech-to-text, secure data handling with audit trails and exports, and production-ready documentation. Proposed stack: Node.js/Python backend, React frontend, PostgreSQL with row-level security for multi-tenancy, Redis for caching, AWS/GCP infrastructure with automated deployments. For speech-to-text: Whisper or Google Speech API. Rule engine built as isolated service with version control and change logs. I'm ready to follow your Developer Pack strictly - the deterministic rule-based evaluation is non-negotiable and AI will only generate signals, never make decisions or modify logic. Timeline: 10-12 weeks depending on Developer Pack scope Cost: Based on detailed requirements after reviewing the Pack Questions: • What's your preferred cloud provider? • Do you have existing tenant data migration needs? Thanks and best regards, Faizan

@Hammadhassan21

Hello, hope you're doing well. i will help you build a production grade SaaS platform that stays fully deterministic, explainable, and compliant while using AI only as a controlled signal source exactly as specified. i have hands on experience with multi tenant architectures, RBAC, secure audit driven systems, and code locked rule engines built for real world governance. i understand the non negotiable constraints and will follow the Developer Pack strictly to deliver clean, documented, and deployment ready code that your team can trust. Discover my professional portfolio: https://www.freelancer.com/u/Hammadhassan21 If my offer meets your expectations, we would be happy to discuss your project in more detail. Best Regards, Hammad Hassan

@teodorgeorge

Hello, I have extensive experience in building production-grade multi-tenant SaaS platforms with strong security, RBAC, and audit capabilities. I understand the importance of strictly following developer guidelines, especially in cases where AI is limited to signal generation and cannot influence decisions or scoring, which must be rule-based and fully explainable. I am confident in delivering clean, production-ready code with complete documentation and a focus on secure data handling. I look forward to ensuring your governed AI SaaS platform meets all your architectural and security requirements while maintaining full transparency and auditability. Thanks, Teo

@DigitaSyndicate

⚠️You are not looking for a coder. You are looking for someone who can build this properly. That is exactly why your project stood out.⚠️ Your initiative to deliver a production-grade multi-tenant SaaS platform featuring governed AI and a deterministic, rule-based evaluation engine reflects a commitment to secure, explainable, and scalable architecture. This aligns precisely with how we approach complex system design at DigitaSyndicate. At DigitaSyndicate, a UK-based digital systems agency, we build precision-engineered automation, modern web platforms, and AI-driven systems designed for performance and long-term scalability. Our expertise in multi-tenant SaaS architecture, strict RBAC implementations, and explainable rule engines ensures your non-negotiable parameters around AI governance, secure data handling, and auditability are met with unwavering precision. Having recently delivered a compliant, rule-based SaaS platform with comprehensive documentation and scalable infrastructure, we understand the rigour your Developer Pack demands. Can you share your main priorities and timeline so I can map out the right execution plan for you? Casper M. Project Lead | DigitaSyndicate Precision-Built Digital Systems.

@maryam951

Hello mohammede205, I am Maryam Abbas, a seasoned Full Stack Developer with 4 years of experience in Cloud Computing. I have carefully reviewed the project requirements and am confident in my ability to deliver a high-quality solution. I have a proven track record of successfully implementing multi-tenant SaaS architectures, deterministic rule engines, and secure data handling protocols. My extensive experience in system architecture and AI integration makes me well-equipped to tackle the complexities of this project. You can review my portfolio at https://www.freelancer.pk/u/maryam951 to see my past work and client testimonials. Let's discuss your project further. Looking forward to collaborating with you. Best regards, Maryam Abbas