Available to hire
I’m Akira Nakao, a results-driven Senior Software Engineer with 10+ years of experience designing and developing high-quality software solutions across diverse industries. I excel at collaborating with stakeholders, leading cross-functional teams, and delivering projects on time and within budget with scalable, efficient code.
I stay current with industry trends, continuously sharpening my technical skills, and I enjoy architecting complex systems that meet customer needs while driving innovation and business value.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
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Expert
Expert
Expert
Expert
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Expert
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Expert
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Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
English
Fluent
Japanese
Advanced
Work Experience
Senior Software Engineer at WandAI
March 1, 2025 - March 1, 2026Led backend architecture for AI workflow orchestration, restructuring workflow logic into four service layers (state management, event handling, task execution, and activity execution). Implemented automated task execution workflows with templating, dynamic parameter resolution, heartbeat timeouts, human-in-the-loop signals, and trace ID propagation. Built 6+ backend service modules for workflow invocation, agent execution, template validation, OAuth, form variable collection, and room-based conversation routing. Integrated multiple AI agent types using LangChain, LangGraph, and LiteLLM. Delivered production-ready REST APIs and event-driven integrations with Kafka, Elasticsearch, Redis, Neo4j, and DuckDB. Improved deployment readiness with GitHub Actions CI, Docker, Kubernetes, Helm charts, and pytest. Coordinated backend AI and product workflows to enable scalable orchestration and improved observability.
Senior Software Engineer at MINTABLE
January 1, 2024 - February 1, 2025Designed and maintained blockchain infrastructure and AWS cloud architecture (CDK, CloudFormation, Lambda, Step Functions, SQS, SNS, AppSync, and API Gateway). Built NFT marketplace backend services with Node.js, TypeScript, Python, NestJS, FastAPI, REST APIs, GraphQL, and serverless patterns. Consolidated AppSync APIs and API Gateway configurations into a unified system; integrated Elasticsearch for ERC-721 and ERC-1155 asset discovery. Built AI-powered chat and discovery features connected to Elasticsearch-backed data. Developed frontends with React, Next.js, Tailwind CSS, MUI, and AWS Amplify. Implemented ETL pipelines for Uniswap V3, Liquidity V2, and Aave V3; contributed to smart contracts in Solidity and Rust. Improved reliability with Docker, Kubernetes, Argo CD, GitHub workflows, Datadog, Stripe, and test automation.
AI Backend Engineer at ARTISSEAI
May 1, 2023 - October 1, 2023Designed distributed backend servers and database architecture for global regions. Built AI image training and generation workflows using prompt engineering, fine-tuning, ML algorithms, LLMs, and retrieval-augmented generation (RAG). Integrated AI providers including Google Gemini and GPT-4. Developed REST API and GraphQL API documentation. Built backend APIs using Node.js, Python, NestJS, AWS Lambda, Step Functions, SQS, SNS, Kafka, Redis, and PostgreSQL. Optimized performance through indexing, caching, pagination and search workflows. Integrated payment and communication services including Apple Pay, Google Pay, Stripe, Twilio, SendGrid, WhatsApp, Slack, and Telegram APIs. Deployed containerized services using Docker, Kubernetes, Datadog, AWS CloudWatch, and Jira. Delivered full stack features using React, Next.js, Tailwind CSS, NestJS, and PostgreSQL with TDD.
Fullstack Developer at SOLARR
March 1, 2022 - April 1, 2023Developed NFT marketplace and DeFi products using full stack development and TDD. Built smart contracts across Ethereum and Solana using ERC-20, ERC-721A, ERC-1155 and ONFT-721. Implemented cross chain purchase and swap functionality using CCIP and CCTP protocols. Improved smart contract cost efficiency through gas optimization. Migrated legacy systems to serverless and microservice architecture reducing operating costs by 10 percent. Implemented CI/CD pipelines using AWS and GitHub Actions with centralized logging and monitoring.
Senior Fullstack Developer at Upwork & Freelancer
January 1, 2020 - February 1, 2022Delivered SaaS, ecommerce, healthcare, and fintech platforms using React, Next.js, Vue, Node.js, Express.js, NestJS, Python, FastAPI, Django, Laravel, REST APIs, and GraphQL. Built microservices and serverless backend systems using AWS, GCP, Docker, Jenkins, GitHub Actions, and GitLab CI/CD for multiple client production releases. Implemented PostgreSQL, MySQL, MongoDB, Redis, and DynamoDB-backed data models for marketplace, payment, and customer workflow applications. Maintained infrastructure as code and deployment automation using Terraform, Ansible, Docker, and cloud services to improve release consistency across client projects. Implemented unit, integration, and E2E testing using Jest, Cypress, Playwright, and CI pipelines for production web applications.
Fullstack Developer at TechCrunch / Client Projects
May 1, 2016 - March 1, 2019Developed payment, news, ecommerce, and web platform features using React, TypeScript, Node.js, Express.js, GraphQL, REST APIs, and PostgreSQL. Built web and mobile backend services using Node.js and Express.js for payment-related product workflows. Implemented GraphQL and REST APIs using NestJS, Apollo GraphQL, and PostgreSQL. Improved database performance through sharding, indexing, and query optimization; applied security best practices including access controls, encryption, and secure service communication across backend API services.
AI Backend Engineer at ARTISSE AI
May 1, 2023 - October 1, 2023Designed distributed backend servers and database architecture; built AI image training and generation workflows; integrated AI providers including Google Gemini and GPT-4; developed REST and GraphQL APIs with Swagger documentation; built backend APIs using Node.js, Python, NestJS, AWS Lambda, Step Functions, SQS, Redis, PostgreSQL; optimized performance via indexing, caching, pagination; integrated payment and communications services; delivered full-stack features with React, Next.js, Tailwind CSS, NestJS; practiced TDD.
Education
Bachelor's degree, Software Engineering at Yokohama National University
January 1, 2011 - January 1, 2016Bachelor's at Yokohama National University
January 1, 2011 - January 1, 2016Bachelor's at Yokohama National University
January 1, 2011 - January 1, 2016Bachelor's at Yokohama National University
January 1, 2011 - December 31, 2016Qualifications
Industry Experience
Software & Internet, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Expert
Expert
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Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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