About me

I am a Senior Software Engineer with 10+ years building production systems across AI platforms, distributed backends, and full-stack products. At Wand AI, I architected and maintained core automation and chat infrastructure on Temporal, FastAPI, and Kubernetes—spanning multi-queue workers, Matrix collaboration bridges, agent orchestration, sandboxed code execution, and cross-service observability for multi-tenant deployments. I bring strong backend depth in Python, TypeScript/Node.js, and Go, with hands-on work in PostgreSQL/MongoDB, message queues (RabbitMQ/Kafka), REST/GraphQL APIs, and cloud-native deployment on AWS and Kubernetes. Earlier roles delivered NFT marketplaces, DeFi integrations, AI image/chat products, and serverless pipelines, combining smart contracts (Solidity/Rust), React/Next.js frontends, and CI/CD across AWS, Azure, and Argo CD. Known for end-to-end ownership—from system design and reliability fixes to product features, testing, and production operations—across fintech, e-commerce, healthcare, and enterprise AI.

What i'm doing

  • Web development icon

    Full Stack Development

    Building scalable web applications using React, Next.js, Vue, Node.js, Python, and various backend frameworks.

  • design icon

    Blockchain Development

    Developing smart contracts, NFT marketplaces, and DeFi solutions using Solidity, Rust, and Web3 technologies.

  • mobile app icon

    AI & Agent Platforms

    Building agent orchestration, LLM inference pipelines, Temporal workflows, and multi-tenant AI automation infrastructure.

  • camera icon

    Cloud & DevOps

    Designing and deploying cloud infrastructure, implementing CI/CD pipelines, and managing containerized applications.

References

  • Oliver Flynn

    Oliver Flynn

    oliverflynn@gmail.com

    Working with AKIRA NAKAO was an absolute game-changer for our NFT marketplace. His expertise in blockchain development and smart contract optimization helped us reduce gas fees significantly. His attention to detail and problem-solving skills are exceptional.

  • MARK ABRAHAM

    MARK ABRAHAM

    markabaham@gmail.com

    AKIRA's work on our AI-powered image processing system was outstanding. He implemented complex ML algorithms and LLM integrations that significantly improved our system's performance. His ability to handle both backend and AI development is remarkable.

  • Emily evans

    John Victor

    victordev56@gmail.com

    The cloud architecture and DevOps solutions implemented by AKIRA transformed our development workflow. His expertise in AWS, Kubernetes, and CI/CD pipelines helped us achieve better scalability and reliability.

  • Henry william

    Vijai V

    vijai.monsterdev@gmail.com

    AKIRA's full-stack development skills are exceptional. He built our entire platform from scratch, implementing modern technologies and best practices. His ability to handle both frontend and backend development is impressive.

Oliver Flynn
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Oliver Flynn

Richard was hired to create a corporate identity. We were very pleased with the work done. She has a lot of experience and is very concerned about the needs of client. Lorem ipsum dolor sit amet, ullamcous cididt consectetur adipiscing elit, seds do et eiusmod tempor incididunt ut laborels dolore magnarels alia.

Clients

Resume

Education

  1. Yokohama National University - Yokohama, Japan

    April 2011 - May 2016

    Bachelor's Degree of Computer Engineering

Experience

  1. Senior AI & Backend Engineer at Wand - United States

    April 2025 - June 2026

    Architected core AI automation and chat infrastructure for agentic labor platforms on Temporal, FastAPI, and Kubernetes.

    • Built and maintained the AI automation runtime on Temporal with multi-queue workers, CaseWorkflow engine, and ContextManager workflows with distributed trace propagation.
    • Developed the chat-service platform (FastAPI, MongoDB, Temporal) with agent catalog/runner patterns, multi-provider LLM inference, tool-call loops, and collab-specific agent behavior.
    • Designed the human–agent task management layer in TypeScript/Express with PostgreSQL/Prisma, supporting org-scoped task hierarchies, HUMAN/AGENT assignees, and CloudEvent callbacks.
    • Built the Matrix collaboration bridge ingesting Synapse webhooks, routing events through RabbitMQ/Kafka with compensating Temporal sagas for reliable message flows.
    • Extended the Element Web collaboration client with Wand-specific React features: assistant management, citation rendering, artifact previews, and escalation settings.
    • Implemented the executor-service Kubernetes pool for sandboxed Python code execution with dynamic pod provisioning and Redis-backed cross-replica allocation.
    • Contributed to governance and AI workforce control plane across Go services, Keycloak OIDC auth, org-registry, and ai-workforce-api.
    • Resolved production reliability issues in the automation worker fleet, including Temporal sandbox deadlock fixes and workflow replay-safe logging.
    Technologies: Python, FastAPI, Temporal, Kubernetes, MongoDB, PostgreSQL, RabbitMQ, Kafka, Redis, Go, TypeScript, React, Matrix

  2. Senior Fullstack & Blockchain Engineer at Mintable - Singapore

    February 2024 - March 2025

    Leading the development of NFT marketplace and DeFi solutions.

    • Designed and maintained blockchain infrastructure and cloud architecture using AWS CDK and CloudFormation.
    • Integrated Elasticsearch and AI agents to power the chatting system.
    • Implemented image optimization using AWS Lambda, Step Functions, and SQS/SNS.
    • Developed global NFT marketplace APIs (RESTful, GraphQL, serverless) with Node.js, Python, and TypeScript.
    • Built skinnable frontend with React.js, Next.js, Tailwind CSS, MUI, and Amplify backend.
    • Consolidated multiple AWS AppSync APIs and API Gateway into one integrated system.
    • Conducted unit, integration, E2E, stress, and A/B tests using Jest, Cypress, and Playwright.
    • Built ETL data pipeline for DeFi protocols (Uniswap V3, Liquidity V2, Aave V3).
    • Contributed to NFT and DeFi smart contracts using Solidity and Rust with gas optimization.
    Technologies: AWS CDK, Next.js, GraphQL, Elasticsearch, Docker, Kubernetes, Argo CD, Solidity, Rust, Nest.js, FastAPI

  3. Lead Backend & AI Engineer at ArtisseAI - Hong Kong

    June 2023 - November 2023

    Developed AI-powered image processing and generation systems.

    • Designed distributed servers and databases for global regions.
    • Developed scalable image training and generation through prompt engineering and fine-tuning.
    • Integrated ML algorithms, LLMs, and RAG to enhance data processing and chatbot capabilities.
    • Integrated AI agents including Google Gemini and ChatGPT-4.
    • Integrated backend, AI servers, and microservices using SQS/SNS, Kafka, and Redis.
    • Implemented serverless Lambda and Step Functions using Node.js and Python.
    • Built crypto payment system with Solidity and Rust; integrated Apple, Google, and Stripe payments.
    • Integrated third-party services (Twilio/SendGrid, push notifications, CMS, WhatsApp, Slack, Telegram).
    Technologies: Python, ML, LLM, RAG, AWS SQS/SNS, Kafka, Redis, Solidity, Rust, Nest.js, PostgreSQL, TDD

  4. Senior Fullstack & Blockchain Developer at SOLARR - Hong Kong

    April 2022 - May 2023

    Developed NFT marketplace and DeFi projects with cross-chain functionality.

    • Developed smart contracts for Ethereum and Solana.
    • Implemented Cross-chain purchase and swap using CCIP/CCTP protocols.
    • Used ERC-20, ERC721(A), ERC1155, and ONFT-721 tokens.
    • Optimized Gas usage, resulting in significant cost savings.
    • Migrated legacy codebase to serverless & microservice architecture.
    • Implemented CI/CD pipelines using Azure, GitHub, ArgoCD, and Grafana.
    • Created centralized logging and monitoring using Kafka, ClickHouse, and sync systems.
    Technologies: Solidity, Rust, CCIP/CCTP, Azure, ArgoCD, Kafka, ClickHouse, CI/CD, Microservices

  5. Senior Fullstack Developer - Upwork & Freelancer

    January 2020 - February 2022

    Developed various SaaS platforms and applications for multiple clients.

    • Built SaaS platforms, Shopping, Ecommerce, Healthcare and Fintech Products.
    • Developed responsive Frontend using React.js, Next.js, Vue, Nuxt.js.
    • Built microservices with Express.js, NestJS, Python, FastAPI, Django, Laravel.
    • Created centralized component library with Storybook.
    • Implemented comprehensive testing and CI/CD pipelines.
    • Maintained IaaC using Terraform and Ansible.
    Technologies: React, Next.js, Vue, Node.js, Python, FastAPI, Django, Laravel, Terraform, Ansible

  6. Fullstack Developer at TechCrunch - Yokohama, Japan

    May 2016 - March 2019

    Developed payment, news, and ecommerce products.

    • Developed web and mobile backend with Node.js(Express.js).
    • Built GraphQL and REST APIs using NestJS and Apollo GraphQL.
    • Optimized database performance with sharding and indexing.
    • Implemented performance monitoring and optimization.
    • Managed TDD and CI/CD with Gitlab pipeline.
    Technologies: React, TypeScript, Node.js, Express.js, NestJS, GraphQL, PostgreSQL

My skills

  • Frontend: HTML, CSS, JavaScript, TypeScript, React, React Native, Next.js, Vue2, Tailwind CSS, Material-UI, ChakraUI
  • Backend: Python, Node.js, Express.js, Nest.js, FastAPI, Flask, Django, Go, Gin, Laravel, Ruby on Rails, Elixir
  • Database & Messaging: MySQL, PostgreSQL, MongoDB, MariaDB, DynamoDB, Redis, RabbitMQ, Kafka, ClickHouse
  • AI & Orchestration: Temporal, LLM inference, agent orchestration, RAG, prompt engineering, Prisma
  • Blockchain: Solidity, Rust, Web3.js, Ethers.js, Wagmi
  • Cloud & DevOps: AWS (EC2, ECS, ECR, EKS, Lambda, Amplify, AppSync, S3, DynamoDB, RDS, CloudFront, OpenSearch, CodePipeline, SNS, SQS, SES, CloudWatch, Step Functions), GCP, Microsoft Azure
  • DevOps Tools: Terraform, Docker, Kubernetes, Jenkins, Ansible, ELK Stack
  • Testing & QA: Jest, Cypress, Playwright, Storybook, Mocha
  • Payment Systems: Stripe, Wert, AliPay, WeChat Pay, Apple Pay, Google Pay, Crypto payments
  • Analytics & Monitoring: Heap, Datadog, ELK Stack, AWS CloudWatch

Portfolio

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