Gokulakrishnan R
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About

About Gokulakrishnan R

AI/ML & Generative AI Solutions Architect · Singapore. From Windows device drivers to production AI agents.

I'm a Technical Architect with 20+ years of experience architecting and delivering secure, scalable enterprise platforms, with a growing specialization in AI/ML and Generative AI. I build agentic AI and RAG applications using LangChain, LangGraph and Microsoft Foundry, develop ML models with TensorFlow, PyTorch and Scikit-learn, and design intelligent document processing pipelines that combine OCR, computer vision and knowledge graphs (Neo4j). My cloud background is deep on AWS, complemented by working knowledge of Azure AI/ML services (Azure ML, Azure OpenAI, Azure DevOps, Microsoft Fabric).

I own architecture decisions end-to-end, from model and framework selection through RAG/agentic design, deployment, security and performance, while working with cross-functional teams to deliver business-focused AI solutions in regulated, high-traffic environments. I also integrate AI capabilities into enterprise applications via REST APIs and automate multi-step workflows with tools like n8n.

Journey

From device drivers to AI agents

  1. 01

    Systems & embedded

    Windows device drivers, media-player firmware, a UPnP streaming server and a signature-less antivirus engine in C/C++.

  2. 02

    Enterprise & retail

    Voucher and store back-office systems for convenience, pharmacy and supermarket chains on Java and PostgreSQL.

  3. 03

    Cloud SaaS & government

    Multi-tenant SaaS for clients in the UK, Europe and Asia, a blockchain coupon platform, then serverless platforms for government and aviation.

  4. 04

    Agentic AI

    AI agents, RAG, MCP servers and computer vision, designed and shipped into production.

Approach

How I work

  • Architecture you can ship

    I own decisions end-to-end, from model and framework choice to deployment, security and performance.

  • Hands-on, not hand-off

    I write code, build the frameworks teams use and review the code that ships.

  • Secure by design

    OAuth 2.0, JWT, encryption and compliance are part of the first design, not a later audit.

  • Teams that grow

    Agile delivery with mentoring and coaching, so teams keep improving after the project ends.

Range

Industries I've built for

  • AI startups
  • Public sector
  • Aviation & logistics
  • Telecom
  • Retail
  • Blockchain & Web3
  • Legal tech
  • Pharma
  • AgTech
  • Gaming
  • Cybersecurity
  • Digital media
  • Consumer electronics

Capabilities

Skills, with proof

Grouped by what I deliver, with links to the work where each was used.

Experience

Where I've worked

  1. Mar 2025 – Present 1 yr 8 mo Now

    Agentic AI Architect

    Independent consultant

    Agents, RAG and vision systems for SaaS and AgTech ventures

    • Document AI
    • Computer vision
    • LLM + RAG apps
    • MCP servers
    • LangChain
    • LangGraph
    • AWS Bedrock
    • OpenRouter
    • MCP
    • YOLO
    • ResNet
    • +4
    Key highlights

    Fractional technical architecture and hands-on AI/ML engineering for early-stage SaaS and AgTech ventures. Embedded with each client's team to scope, architect, build and ship production AI systems end-to-end, using AI-assisted development and multiple LLM providers.

    • Document AI: OCR extraction plus LLM classification and schema-conformant JSON output via AWS Bedrock and OpenRouter, deployed as isolated per-client AWS accounts
    • Computer vision: two-stage pipeline with YOLO object detection and ResNet classification for disease, weight and breed, trained on IoT and CCTV data and shipped to mobile and web apps
    • LLM and RAG app: LangChain pipelines with tool calling, conversational memory and RAG over a predictions knowledge base, translated natively into five languages
    • Built a Model Context Protocol (MCP) server exposing coupon issuance, redemption and merchant operations to LLM agents

  2. Dec 2023 – Feb 2025 1 yr 3 mo

    Technical Architect Team lead

    Large IT services provider, Singapore

    Public sector and aviation platforms

    • Microservices migration
    • Serverless on AWS
    • Government-grade security
    • LLM proofs of concept
    • Go
    • Python
    • FastAPI
    • NestJS
    • GraphQL
    • AWS Lambda
    • ECS Fargate
    • +9
    Key highlights

    Architected and delivered compliance-driven platforms for public sector and aviation logistics, owning architecture end-to-end including AI/LLM initiatives.

    • Led monolith-to-microservices migrations; built serverless frameworks in NestJS, Go and Python serving GraphQL and REST on AWS Lambda and API Gateway
    • Containerised services on Docker and AWS ECS Fargate to cut infrastructure overhead
    • OAuth 2.0 and JWT authentication aligned with government security guidelines; AES-256 and SHA-3 for data protection
    • Decoupled real-time messaging with Redis Pub/Sub and Amazon SNS topic subscriptions
    • Built AI/LLM proofs of concept with Gemini, OpenAI and Ollama for citizen services and workflow automation
    • Delivered a multi-agency citizen data platform (Go, MongoDB, DynamoDB, PostgreSQL), an aviation data hub (Python ETL on Databricks, AWS Glue, Kinesis) and an AI cargo sequencing system (FastAPI, Strawberry GraphQL, SQLAlchemy)
    • GitLab CI/CD, load and performance testing against public-sector SLAs, structured logging and observability

  3. Oct 2019 – Dec 2023 4 yrs 3 mo

    Solution Architect Team lead Blockchain

    Global SaaS company, Singapore

    Multi-tenant SaaS and blockchain coupon platforms

    • Event-driven SaaS
    • Blockchain smart contracts
    • ERC-20 token sale
    • Flutter mobile
    • Ethereum
    • Solidity
    • OpenZeppelin
    • Node.js
    • Go
    • Java Spring Boot
    • Flutter
    • +7
    Key highlights

    Owned the technical architecture of a global SaaS digital coupon platform supporting multi-tenant business models and high transaction volumes, and of its blockchain-based counterpart for coupon ownership and traceability.

    • Blockchain coupon platform on Ethereum: Solidity smart contracts for B2C, B2B and C2C coupon creation, distribution, transfer and redemption, with on-chain ownership tracking to prevent counterfeiting
    • ERC-20 utility token and token-sale contracts built on OpenZeppelin: pricing, sale windows, hard cap, contribution limits, whitelist, allocation and claiming, vesting and lock-ups, refunds, admin roles and emergency pause
    • Converted a monolith into event-driven, serverless microservices on API Gateway and Lambda in Node.js, Go and Java Spring Boot
    • Set frontend standards (Vue + Nuxt, React + Next) after evaluating Angular, Vue and React
    • Designed a Flutter mobile framework using Domain-Driven Design for iOS and Android
    • OAuth 2.0, JWT and TOTP authentication; payment gateway test beds with SQS FIFO and standard queues
    • Dynamic per-business subdomains, ECS Fargate deployments, Kafka and ELK for event processing and logs

  4. Jul 2018 – Sep 2019 1 yr 3 mo

    Technical Architect Team lead

    Government technology agency, Singapore

    Government procurement and approval systems

    • Multi-level approvals
    • Low-code delivery
    • Audit and compliance
    • OutSystems
    • Low-code
    • Oracle
    • Private cloud
    • Agile/Scrum
    Key highlights

    Led delivery of a next-generation procurement platform covering purchase requests and orders, sourcing, tendering, contract management and award approval.

    • Multi-level, multi-approver workflows with full audit trails on a low-code platform
    • Data modelling and integration design on the OutSystems low-code platform with Oracle, on a private cloud
    • Led Agile/Scrum teams, code reviews and security and compliance standards

  5. Jan 2017 – Jun 2018 1 yr 6 mo

    Technical Architect Team lead

    Telecommunications provider, Singapore

    Telecom account planning and task automation

    • Sales task automation
    • REST integrations
    • Data migration
    • OutSystems
    • Low-code
    • REST APIs
    • Microservices
    • Oracle
    Key highlights

    Led solution architecture for an enterprise account-planning system that automatically creates, assigns and approves periodic sales tasks across a role hierarchy.

    • Translated business processes into application and technical architecture components
    • Built RESTful services and third-party API integrations on the OutSystems low-code platform
    • Planned data migration and rollout, and led peer reviews and quality management

  6. Mar 2013 – Dec 2016 3 yrs 10 mo

    Technical Solution Architect Team lead

    Software consultancy, Singapore

    SaaS products for clients in the UK, Europe and Asia

    • Document automation SaaS
    • AI chatbot SaaS
    • Multi-tenant data
    • Payments and SSO
    • React
    • Next.js
    • Vue.js
    • Node.js
    • Java Spring Boot
    • AWS Lambda
    • Azure Form Recognizer
    • +3
    Key highlights

    End-to-end design and delivery of frontend and backend systems for client SaaS products: module division, interface design, data flow, technology selection and code.

    • Legal invoice-management SaaS with automated invoice scanning using Microsoft Form Recognizer (React, Next.js, Node.js, AWS Lambda)
    • Customer-support SaaS with an AI chatbot, tickets and appointments (Vue, Nuxt, Go, Flutter apps)
    • Sales-force automation SaaS for pharmaceutical companies (Java Spring Boot, iOS and Android apps)
    • Multi-tenant schema design across Oracle, MySQL, MongoDB, DynamoDB and CouchDB, plus Neo4j graph modelling
    • OAuth 2.0, JWT and third-party sign-in (Azure AD, Google, Facebook); regional and international payment gateways

Earlier career

  • Technical Lead

    Retail voucher and store back-office systems · Retail group, Singapore

    From Mar 2009

  • Technical Lead

    Signature-less antivirus engine · Cybersecurity software company, Singapore

    From May 2006

  • Senior Software Engineer

    UPnP multimedia streaming server · Digital media company, India

    From Oct 2004

  • Senior Software Engineer

    Embedded media players and Windows device drivers · Embedded systems company, India

    From Mar 2000

Toolbox

Technology stack

AI/ML Frameworks

  • Python
  • TensorFlow
  • PyTorch
  • Scikit-learn
  • Keras
  • YOLO
  • ResNet

GenAI & Agentic Orchestration

  • LangChain
  • LangGraph
  • PydanticAI
  • MCP
  • CrewAI
  • Semantic Kernel
  • LlamaIndex
  • Haystack

LLM Models & Platforms

  • OpenAI GPT
  • Anthropic Claude
  • Google Gemini
  • Azure OpenAI
  • Microsoft Foundry
  • AWS Bedrock
  • OpenRouter
  • Meta LLaMA
  • Mistral
  • Ollama

AI-Assisted Development

  • Claude Code
  • Cursor
  • Google Antigravity

Vector Databases & Knowledge Graphs

  • Pinecone
  • ChromaDB
  • FAISS
  • PostgreSQL (pgvector)
  • Neo4j

Document AI & Computer Vision

  • OCR
  • Intelligent Document Processing
  • Computer Vision Pipelines

MLOps & Deployment

  • MLflow
  • Docker
  • Kubernetes
  • Azure ML

Automation & Integration

  • n8n
  • Azure Logic Apps
  • REST APIs
  • Webhooks
  • CRM/ERP/HR/BI Integration

Cloud Platforms

  • AWS (Lambda, API Gateway, ECS Fargate, EC2, S3, RDS, DynamoDB, SNS, SQS, WAF, CloudFormation)
  • GCP
  • Azure AI/ML
  • Azure DevOps
  • Microsoft Fabric
Show 9 more technology groups

Backend & APIs

  • Python
  • FastAPI
  • Node.js
  • NestJS
  • Go
  • Java (Spring Boot)
  • C#
  • GraphQL
  • Django
  • Express
  • SQLAlchemy

Blockchain & Web3

  • Ethereum
  • Solidity
  • ERC-20
  • OpenZeppelin
  • Etherscan

Mobile & Low-Code

  • Flutter
  • iOS
  • Android
  • OutSystems

Data Engineering

  • Databricks
  • PySpark
  • AWS Glue
  • Kinesis
  • ETL pipelines

Frontend

  • React
  • Next.js
  • TypeScript
  • Vue
  • Nuxt

Databases

  • PostgreSQL
  • MongoDB
  • DynamoDB
  • MySQL
  • Oracle

Messaging & Caching

  • Kafka
  • Redis
  • Amazon SNS/SQS

DevOps & Platform

  • Docker
  • Kubernetes
  • GitLab CI/CD
  • ECS Fargate
  • Observability (ELK)

Security

  • OAuth 2.0
  • JWT
  • AES-256
  • IAM
  • API security
  • AWS WAF

Education

Education & certification

  • Master of Science, Artificial Intelligence & Machine Learning, Liverpool John Moores University, UK
  • Advanced Certification, Machine Learning & Cloud, Indian Institute of Technology (IIT), India
  • Master of Computer Applications (MCA), Bharathidasan University, India
  • Bachelor of Science, Computer Science, Bharathidasan University, India

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