
Principal Architect - AI & Full Stack
Sigma Infosolutions Ltd. · Posted today
- Ahmedabad, Gujarat, India (On-site)
- On-site
- Full-time
- 8-12 yrs
- ₹30L - ₹45L
About the role
Experience: 8-12 years
Location: Bangalore / Ahmedabad / Jodhpur
Role Overview
We are looking for a strong hands-on, forward-thinking Technical pioneer who can split their time between two critical mandates:
- 50% Solution Architecture & Client-Facing Technical Engagement– Architect scalable full-stack, cloud-native, AI-enabled, and multi-tenant solutions across client engagements, with strong focus on security, scalability, configurability, robustness and long-term platform sustainability.
- 50% AI Innovation & Strategic Growth –Lead AI/GenAI POCs, define reusable AI capabilities, and establish modern AI-assisted and Vibe Coding-based engineering practices that enable rapid, continuous, and cost-effective delivery.
Key Responsibilities
- Solution Architecture & Technical Engagement (50%)
- Architect scalable full-stack applications using React, Node.js, Python, Go, and modern cloud-native technologies.
- Architect scalable full-stack applications using React, Node.js, Python, Go, and modern cloud-native technologies.
- Design and evolve multi-tenant /multi-brandSaaS architectures with strong tenant isolation and configuration-driven capabilities, minimizing tenant-specific custom development.
- Establish reusable, configuration-driven architecture for UI, workflows, business rules, validations, integrations, permissions, feature flags, and tenant-specific requirements.
- Define API-first, event-driven, microservices/modular architectures and integration patterns based on business and scalability requirements.
- Govern architecture quality and technical decisions, ensuring systems remain robust, scalable, secure, maintainable, and production-ready while supporting continuous onboarding of new tenant requirements.
- Define Vibe Coding best practices covering requirement decomposition, architecture-first development, AI-assisted coding, context management, code review, testing, security validation, documentation, and human-in-the-loop governance.
- Establish and govern code quality, engineering standards, architecture review, testing, security, and best-practice adherence across the complete development and deployment lifecycle.
- Maintain strong hands-on awareness of the complete development and deployment lifecycle and guide teams on design patterns, coding standards, technical debt reduction, DevOps, and cloud-native engineering practices.
- Define modern deployment architectures using CI/CD, Infrastructure as Code, containers, Kubernetes, GitOps, automated testing, and progressive delivery.
- Support solution planning, architecture reviews, pre-sales, and client-facing technical discussions.
- Act as a technical point of contact for quick customer/team handoffs, clarifications, and architectural alignment when required.
- Collaborate effectively with engineering and technology teams across different geographies and locations.
- Mentor senior and mid-level engineers and conduct technical design and architecture reviews.
- AI Innovation, POCs & Practice Building (50%)
- Architect and build AI/GenAI solutions including LLMs, model routing, embeddings, vector databases, hybrid search, RAG, tool/function calling, MCP, agent orchestration, guardrails, and AI observability.
- Architect and build AI/GenAI solutions including LLMs, model routing, embeddings, vector databases, hybrid search, RAG, tool/function calling, MCP, agent orchestration, guardrails, and AI observability.
- Lead AI POCs from business use-case discovery and architecture through prototype, evaluation, integration, and production-readiness assessment.
- Bring practical experience in implementing, deploying, and operationalizing AI/GenAI solutions in production environments.
- Build reusable AI services and accelerators that can be consumed across multiple products, clients, and tenants rather than developing isolated project-specific solutions.
- Define configuration-driven AI capabilities including tenant-specific models, prompts, tools, knowledge sources, policies, workflows, and AI features.
- Define and govern the architecture of the semantic layer, ontology, knowledge representation, and related knowledge/semantic architecture required to support AI-enabled applications and intelligent workflows.
- Drive Vibe Coding-based application development and establish reusable Agentic AI-assisted development workflows, templates, prompts, skills, coding agents, and engineering accelerators.
- Identify opportunities to use AI agents across the SDLC, including requirement analysis, architecture, coding, code review, testing, debugging, documentation, migration, and DevOps automation.
- Identify opportunities to apply AI to improve engineering productivity, automate business processes, reduce operational overhead, and create new client-facing capabilities.
- Collaborate with leadership to define the AI technology roadmap, reusable accelerators, reference architectures, and AI Center of Excellence capabilities.
- Track emerging AI technologies and evaluate their applicability across client engagements and industry-specific use cases.
- Additional Responsibilities
- Identify business opportunities for modernization, platform reuse, AI-led engineering transformation, account expansion, and new AI-enabled business solutions.
- Conduct internal workshops, guide upskilling plans, and help build a pipeline of AI-savvy engineers.
- Participate in marketing and sales enablement, including client demos, case studies, and proposal support.
Skills
ReactNode.jsPythonGoCloud-native technologiesAI/GenAI solutionsVibe CodingAgentic AI-assisted development