09/11/2026 updated

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Full-Stack & AI Engineer | Founder | SaaS & AI Product Builder

Bangalore, India
Only remote
Bachelor of Engineering in Computer Science and Engineering
Bangalore, India
Only remote
Bachelor of Engineering in Computer Science and Engineering

Profile attachments

Sankar_Freelance.pdf

About me

I’m a Senior Software Engineer with around 6 years of experience across enterprise engineering, freelance development, and personal product building. My professional experience includes working at Oracle, Synopsys, and Walmart Global Tech, where I’ve built scalable backend systems, AI/GenAI

Software as a ServiceDjangoPostgreSQLNode.jsUi PatternsTensorFlowWorkflowsReact.jsPrompt EngineeringGenerative AIBackendCloudformationFront End Software DevelopmentWeb Api
AI & Generative AI Engineering
Expertise in LLMs, Generative AI, AI Agents, Agentic Workflows, RAG, Prompt Engineering, and Tool Calling. Hands-on experience building RAG pipelines and agent orchestration using LangGraph and LangChain for retrieval-grounded GenAI features in production environments.

Full-Stack Web Development
Proficiency across the full stack with React, Redux, TypeScript, JavaScript, jQuery, MUI, Ant Design, Playwright, and DataTables on the frontend, and Python, Django, FastAPI, Node.js, Express, Kafka, Celery, Redis, Jenkins, Docker, Kubernetes, ELK, and REST on the backend.

Cloud & Infrastructure
Strong command of AWS services including EC2, S3, RDS, Lambda, and CloudFormation, as well as Oracle OCI, Vercel, and self-hosted/containerized infrastructure. Experience designing and maintaining 100% self-hosted production infrastructure across multiple products.

Database Design & Optimization
Experience with PostgreSQL, MongoDB, Cassandra, and Firebase. In-depth knowledge of query optimization, indexing strategies, schema design, and caching for large-scale, event-driven data operations.

AI Frameworks & Libraries
Practical use of LangGraph, LangChain, LlamaIndex, Hugging Face, OpenAI, TensorFlow, and scikit-learn for building and deploying AI-powered applications and automation workflows.

SaaS Product Development
End-to-end design, development, and self-hosting of SaaS products including multi-tenant e-commerce platforms, enterprise rental OS, AI-native task platforms, and digital adoption platforms.

System Design & Architecture
Competency in system design including event-driven architectures, real-time applications, multi-tenant systems, and scalable backend services for enterprise workflows.

Frontend Performance Optimization
Redesign of frontend architectures using React and Redux, achieving significant reductions in page-load times and improved user experience across large-scale applications.

Experience

Professional experience5 - 10 years
Freelancer since2021

Languages

EnglishNative speaker

Project history

Senior Software Engineer, IC3

Oracle Corporation
Working on Oracle Guided Learning (Fusion). Won a pillar-wide Oracle hackathon with an AI-powered analytics solution productized into a custom dashboard and automated chart-generation capability. Built RAG pipelines and agent orchestration using LangGraph and LangChain for retrieval-grounded GenAI features. Resolved 50+ production issues including OWASP-identified vulnerabilities and received a Rapid Response Team Award.

Founder & Full-Stack AI Engineer

Northern Labs (Freelance / Independent Studio)
Founder and sole engineer of Northern Labs, a full-stack and AI software studio. Designed, built, and self-hosted four production products end to end: Scaleflow (on-premise Enterprise Rental OS), Shop.Scaleflow (multi-tenant e-commerce platform), Taskyard (AI-native task and execution platform with MCP server support), and FlowAssist (AI-powered Digital Adoption Platform). Owned schema, interface, infrastructure, and AI layer across all products with 100% self-hosted infrastructure.

Software Engineer II, R&D

Synopsys Inc.
Redesigned the frontend with React and Redux, cutting page-load times by 40% and optimizing PostgreSQL queries and caching. Earned two internal awards and an early promotion for sustained performance improvements across Design, Verification, and Release of IP/MSIP solutions.

Software Development & Support

Walmart Global Tech
Led development of Flowgen, a React-based interface automating legacy replenishment processes across Walmart stores. Built backend services using Python, Django, Kafka, Celery, and Redis for enterprise workflows.

Portfolio


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