Shigekazu Takei

Architect for dotData's customer-facing administrative platform, owning the solution from concept through launch and ongoing operation.

• Led the greenfield design and delivery of dotData Console, establishing IaC foundations with AWS CDK and Amplify and directing end-to-end implementation.
• Mentored a team of five external developers during the initial build, setting coding standards via prototypes, code reviews, and hands-on guidance.
• Serve as Japan-based technical owner post-launch, shipping customer-driven features while safeguarding reliability through proactive monitoring and infrastructure optimization.

Tech: FastAPI, React (Remix), TypeScript, AWS CDK, AWS Amplify, AWS Cognito, AWS Lambda, AWS Step Functions, AWS EventBridge, AWS EKS, AWS ECS

Partnered with the CEO to evaluate a Salesforce-focused analytics service by delivering a production-quality proof of concept in under three months.

• Transformed high-level concepts into a secure, serverless AWS architecture spanning frontend, backend, and Salesforce data ingestion.
• Implemented a full-stack solution featuring a Next.js interface on AWS Amplify, an AWS SAM-defined backend, and data synchronization via AppFlow and Glue.
• Accelerated market validation cycles while preserving scalability, authentication, and compliance with AWS best practices.

Tech: TypeScript, Next.js, Docker, AWS SAM, AWS CloudFormation, AWS Lambda, AWS Step Functions, AWS Cognito, AWS DynamoDB, AWS Glue, AWS AppFlow

Drove innovation efforts spanning generative AI experimentation and performance refactoring for emerging dotData products.

• Advised the CEO on an LLM-powered marketing translation concept, proposing a RAG architecture and delivering a working Streamlit + OpenAI prototype within one week.
• Overhauled real-time data synchronization by replacing polling with a digest-based Server-Sent Events broadcast, significantly reducing latency and redundant traffic.

Tech: Python, FastAPI, Streamlit, OpenAI APIs, Vector databases (LanceDB), React, Next.js, TypeScript, TanStack Query

Sole architect and project manager for a mission-critical integration with a major Japanese enterprise partner.

• Led the engagement end to end, from technical proposal and architecture to implementation and production rollout of a multi-tenant integration platform.
• Engineered an Azure-hosted solution incorporating Synapse for auto-scaling orchestration and Key Vault-backed tenant isolation for secure SDK execution.

Tech: Python, Azure Synapse, Spark, Azure Key Vault, Azure Data Lake

Managed a full-stack team of eight engineers delivering the dotData Enterprise web interface.

• Directed sprint planning, prioritization, and mentoring while maintaining hands-on technical leadership across backend and frontend efforts.
• Transitioned back to an individual contributor tech lead role following organizational restructuring in mid-2022.

Tech: Scala, Python, TypeScript, Play Framework, AngularJS, Apache Spark

Led a backend team delivering integration features and platform stability improvements for dotData Enterprise.

• Implemented Tableau data-source exchange capabilities and an Apache Spark-based internal upgrade framework.
• Reduced end-to-end test runtimes from six hours to thirty minutes through Docker adoption and refactoring.

Tech: Scala, Python, Play Framework, Apache Spark, Tableau Hyper

Delivered automation and backend services supporting SmartNews publisher growth.

• Eliminated a manual finance bottleneck by leading a CEO-backed task force that automated publisher payouts via Google Apps Script, tripling new publisher applications.
• Supported US growth initiatives as a server-side engineer building Java services on AWS.

Tech: Java, TypeScript, Google Apps Script, AWS

Led architecture and delivery of high-throughput programmatic advertising systems.

• Designed and launched a video ad delivery platform handling 2000+ requests per second with sub-30ms latency using Scala, Finagle, Thrift, and Protocol Buffers.
• Stood up AWS infrastructure and observability (Datadog, New Relic, PagerDuty) to ensure always-on operations.
• Acted as product manager and lead engineer for a new ad product, including AngularJS admin UI and TypeScript SDK.

Tech: Scala, Finagle, Thrift, Protocol Buffers, AWS EC2, AWS ElastiCache, AWS RDS, AWS Redshift, Datadog, New Relic, PagerDuty, AngularJS, TypeScript

Oversaw the creation of a new demand-side advertising platform.

• Architected and implemented the core DSP components, including a Scala/Finagle ad server, Play-based admin UI, and client-side JavaScript SDK.

Tech: Scala, Finagle, Play Framework, JavaScript

Led modernization and tooling initiatives across enterprise software programs.

• Managed a five-person team migrating a core system from COBOL to Java, achieving a 5× performance improvement.
• Delivered security verification, Selenium-based UI testing tools, and large-scale mail system performance analyses.

Tech: Java, COBOL, Eclipse, Selenium, Maven