20+ years in advertising industry gives me opportunities to involve wide range of assignments in Tokyo, from translation and copywriting to research and brand strategy. Recently I get many inquiries on local support of global brands. My experience started in Japanese advertising agency and I moved to global mega agencies, then a Los Angeles based creative agency. I also have short-term experiences in Client side and a global consulting firm. Freelance career since March, 2018. Tetra Tokyo G.K. established in Jan 2020.

I build production-grade software at the intersection of AI, fintech, and blockchain. My work spans the full stack — from backend architecture and API design to polished React frontends — with a focus on systems that handle real money, real data, and real users. Past and current work includes an AI-powered personal health platform with food analysis and a token reward economy; and a custodial crypto trading platform integrating Cobo WaaS 2.0 for a funded fintech startup. What I deliver for clients: AI-integrated applications — Gemini, OpenAI, and Claude APIs wired into production products Crypto exchange infrastructure — Trading platform with rest API & websocket order execution, Cobo WaaS 2.0 MPC custody, KYC integration, VARA licensing support Algorithmic trading systems — MQL4/MQL5 EAs, Python ML pipelines, live deployment on IC Markets and similar brokers Full-stack web and desktop applications — React/Vite frontends, Node.js/Express backends, Supabase (PostgreSQL), deployed on Vercel, Railway, and AWS Smart contracts and dApps — Solidity, Rust, Web3.js, ethers.js across EVM chains and Solana I work independently, communicate clearly, and ship. 100% Job Success · Top Rated Plus. Stack: TypeScript · Node.js · React · Python · MQL5 · Solidity · Supabase · AWS · Cobo & Fireblocks WaaS · Vite · Vercel · Railway

AI Agents | Multi-Agent Systems | Production AI Automation | Agentic AI Anyone can build an AI automation that works in a demo, share a Loom video, bill the hours, and call it a day. In my experience, the real problems show up weeks later, when the automation has been running unattended and real money is on the line. Many clients come to me after an automation has already started causing problems. The workflow looks healthy, but outputs are wrong, costs quietly increase, and nobody trusts the system anymore. Today, I help businesses deploy AI they can trust with real work. I know you're here because you want AI to take away your repetitive, messy, manual workflows so you can focus fully on what moves the needle for your business. But here's the hard truth: 𝘆𝗼𝘂 𝗮𝗿𝗲 𝗻𝗼𝘁 𝗱𝗲𝗹𝗲𝗴𝗮𝘁𝗶𝗻𝗴 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀, 𝘆𝗼𝘂 𝗮𝗿𝗲 𝗱𝗲𝗹𝗲𝗴𝗮𝘁𝗶𝗻𝗴 𝘁𝗿𝘂𝘀𝘁. And that's the only thing I care about. 𝗧𝗥𝗨𝗦𝗧. I'm a Robotics & AI Reliability Engineer, and throughout my career I've built production systems where trust and reliability are non-negotiable. From building self-driving car software at Toyota R&D, where a wrong decision on the road can cost a life, to low-latency trading infrastructure, where one bad output burns real money in seconds. I later founded and scaled Weavlog into a six-figure localization business on Upwork, applying the same engineering rigor and discipline to build reliable localization workflows for businesses expanding into global markets. Top Rated Plus for 9+ years on Upwork, ranking among the top 3% of talent on the platform. The reviews from that business are still on my profile. They aren't reviews about AI, but they are proof of how I work: meticulous, reliable, communicative, and accountable when quality matters. At the end of the day, 𝘆𝗼𝘂 𝗷𝘂𝘀𝘁 𝘄𝗮𝗻𝘁 𝘁𝗼 𝘀𝗹𝗲𝗲𝗽 𝗽𝗲𝗮𝗰𝗲𝗳𝘂𝗹𝗹𝘆 𝗸𝗻𝗼𝘄𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗶𝘀 𝗶𝗻 𝘀𝗮𝗳𝗲 𝗵𝗮𝗻𝗱𝘀 and nothing is breaking silently under the hood. I don't just build AI systems. I understand what it costs when they fail silently because 𝗜'𝘃𝗲 𝗯𝗲𝗲𝗻 𝘁𝗵𝗲 𝗽𝗲𝗿𝘀𝗼𝗻 𝘄𝗵𝗼𝘀𝗲 𝗻𝗮𝗺𝗲 𝘄𝗮𝘀 𝗼𝗻 𝘁𝗵𝗲 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆. 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗿𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆-𝗳𝗶𝗿𝘀𝘁 𝗔𝗜 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝘃𝗲𝗿𝗶𝗳𝘆 𝗯𝗲𝗳𝗼𝗿𝗲 𝘁𝗵𝗲𝘆 𝘁𝗿𝘂𝘀𝘁. Structured outputs. Validation gates. Human review where it matters. ━━━━━━━━━━━━━━━━━━━━━━ 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 • AI Agents & Multi-Agent Systems • Business Workflow Automation • AI Voice & Telephony Automation • Document Intelligence, Research Automation & Decision Support • RAG Enterprise Knowledge Assistants • CRM & Sales Workflow Automation • Enterprise Data Platforms (ETL/ELT, API Integrations & Analytics) ━━━━━━━━━━━━━━━━━━━━━━ 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗔𝗜 & 𝗢𝗿𝗰𝗵𝗲𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 OpenAI • Claude • Gemini • LangGraph • LangChain • CrewAI • MCP • RAG • Pinecone • ChromaDB • NLP • PyTorch 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗩𝗼𝗶𝗰𝗲 n8n • Make • GoHighLevel (GHL) • CRM Integrations • Vapi • Retell AI • ElevenLabs • Azure Voice 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 Python • Rust • C++ • Node.js • React/Next.js 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 FastAPI • Supabase • Docker • Kubernetes • PostgreSQL • MongoDB • Redis • Kafka • AWS • Azure • GCP ━━━━━━━━━━━━━━━━━━━━━━ I start with your workflow and business goals, then build the simplest system that solves the problem reliably. I'll also tell you where automation isn't the right answer, and where human oversight should remain part of the process. My recent AI automation, LLM, and workflow engineering projects are showcased in my portfolio. Send me a message and tell me what you want off your plate, or which part of your current setup you don't trust. 𝗟𝗲𝘁'𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝘆𝗼𝘂 𝗰𝗮𝗻 𝘀𝘁𝗼𝗽 𝘄𝗼𝗿𝗿𝘆𝗶𝗻𝗴 𝗮𝗯𝗼𝘂𝘁.

With 25+ years building mission-critical trading systems for investment banks, hedge funds, and professional traders, I bring genuine front-office experience to every project - not just technical skills, but a deep understanding of what traders actually need and the low margin for error that comes with it. My background includes roles on the trading floors of ING Barings and UBS Securities, where I developed equity solutions in high-pressure, time-critical environments. Since then I've worked extensively with hedge funds and private investors, most recently in an ongoing relationship with a New York hedge fund spanning 5+ years, building strategy screeners, broker connectivity via Interactive Brokers/QuickFIX, and risk management reporting across Excel, Python, and Azure SQL Database. One of my core specialties is the intersection of Excel and C# - building sophisticated, real-time trading tools using Excel DNA, multithreaded C# DLLs, and custom broker APIs that go well beyond what standard VBA can deliver. I'm equally comfortable at the quant/data layer (Python, Plotly Dash, Bloomberg, Eikon) and the execution layer (QuickFIX, FIX Protocol, broker APIs). I have a particular talent for untangling complex, hard-to-reproduce bugs in live trading environments - the kind of problems that require both deep technical knowledge and genuine market understanding to diagnose. I'm looking for long-term client relationships with serious projects. If you're building something sophisticated in the trading/fintech space, let's talk.

I build backend, automation, DevOps, and applied AI systems for teams that need reliable production engineering around messy real-world workflows, integrations, and data. My strongest lane is backend engineering combined with LLM/RAG systems: ingestion pipelines, embeddings, vector retrieval, metadata boundaries, context assembly, retrieval quality, and operational reliability. I have production experience working with multi-corpus embedding pipelines around ~30GB of data, where practical issues like storage growth, duplicate contamination, metadata separation, retrieval quality, and naive RAG limitations show up quickly. I can help with: - Building RAG systems over internal documents and knowledge bases - Designing ingestion, chunking, embedding, and retrieval pipelines - Improving chatbot memory, context construction, and answer quality - Adding traceability and evaluation-oriented workflows - Building backend APIs, internal tools, and automation workflows - Designing SQL-backed backend systems and operational data workflows - Improving deployments, monitoring, logging, and reliability My approach is practical: I separate ingestion, retrieval, ranking, context assembly, generation, evaluation, and observability so each part can be tested and improved independently. For AI systems, this matters because “just embed everything and ask the model” usually breaks down once the corpus becomes large, duplicated, sensitive, or multi-domain. I have had to deal with many fires involving one recurring item would eat up top k candidates, unbounded embeddings eating up all the vector db storage, async summarization work not landing when needed and so on. Technical areas: - Backend: TypeScript/Node.js, Rust, PostgreSQL, Redis, APIs, queues, integrations - AI/RAG: embeddings, vector search, retrieval, metadata filtering, context assembly, evaluation-oriented design - Observability: OpenTelemetry, Prometheus, Tempo, Grafana - Automation: internal tools, workflow automation, scraping/integration systems - Data workflows: PostgreSQL, SQL, data modeling for application/backend systems I work well async, write clearly, and can turn ambiguous technical goals into scoped plans, milestones, and maintainable systems. Languages: English, Bengali, Japanese, conversational Hindi.

Expert-vetted Certified Marketing Cloud and Data Cloud Consultant, with 200+ projects over 7+ years. I have experience with all versions of Marketing Cloud including Account Engagement (Pardot), Engagement and Next (Growth and Advanced). My projects have spanned a variety of countries, industries and company sizes, from Fortune 50 Enterprise, to 10 person startup. I am an Upwork expert-vetted consultant in Marketing Automation, which means I was hand-selected by Upwork as the top 1% of talent in my category on the platform. I would love to help you with your Marketing Cloud projects, whether implementing Marketing Cloud, providing consulting or ad-hoc support and training, acting as an extension of your Marketing team and running your campaigns for you. My typical Marketing Cloud projects look a little something like this: 1. Implementation Get your tool up and running and set up for success 2. Email Journey Development Develop email journeys that are measurable and drive results 3. Email, Form and Landing page design (CSS, HTML etc.) I’ll build your assets to be on-brand and responsive 4. Strategic consulting Lean on my expertise and experience with building measurable and effective programs across lifecycle stages that drive ROI 5. Revenue Operations Lead scoring, grading and routing; Campaign hierarchy and marketing attribution; reports, dashboards and integrations, etc. Please reach out for a free consultation or to see if there is a fit.

Award-winning filmmaker and photographer with more than 20 years of experience across development, field production, post-production, directing, producing, and cinematography. I have filmed for Discovery Channel, the United Nations, BBC, CNN, Meta, Google, and many others. My work ranges from intimate, small-scale shoots to large productions with budgets exceeding 100,000 USD, including projects for American Airlines. I have covered health, science, sports, history, nature, and human-interest stories, and have worked in more than 60 countries on both international and domestic assignments.

I design minimal logos, wordmarks, and brand identity systems for founders, premium brands, and growing businesses. My work combines clear visual strategy, Japanese design sensibility, and refined typography to create identities that feel distinctive, practical, and long-lasting. I specialize in logo design, custom wordmarks, monograms, and small brand identity systems that work across packaging, print, and digital use. With over 25 years of experience, I combine structured visual thinking, Japanese design heritage, and cultural depth to create identities that feel modern, authentic, and quietly memorable. My work is especially suited for lifestyle, wellness, hospitality, premium brands, and organizations that value clarity, quiet beauty, and timeless design. What I offer: – logo design – wordmark design – brand identity systems – visual direction – typography and color direction My approach: – no templates – no AI-generated logos – carefully crafted design from concept to final execution If you are looking for a calm, distinctive, and culturally refined brand identity, I would be glad to discuss your project.

Hi, I’m Kaori – a Tokyo-based bilingual marketing director with over 15 years of experience in sales, advertising, and global business development for tech startups, hardware and software companies, and the manufacturing industry. With a proven track record of helping businesses grow brand awareness and boost sales through strategic planning, cross-cultural communications, and hands-on international outreach, I specialize in building bridges between Japan and global markets.

Your product is live in Japan. Your content is localized. But growth has plateaued — and you're not sure why. The problem usually isn't what you said. It's how it was structured. Japanese users don't just evaluate your product. They evaluate whether they can trust it — and trust is built through the precision of language, the consistency of terminology, and the sequence in which information is revealed. When any of these are off, Japanese users disengage without explaining why. I fix that. As a strategic editor for the Japan market, I work with what you already have. I don't replace your content — I restructure it. I find where the friction is, clarify what's getting lost, and rebuild the sequence so your message actually reaches Japanese audiences. ▶︎ WHAT YOU GET ❯ MESSAGING AUDIT & RESTRUCTURE: A clear analysis of where your current messaging breaks down for Japanese audiences — with a restructured version ready to implement. ❯ CONTENT ARCHITECTURE: Your existing website, product copy, or pitch materials reorganized around how Japanese users read, evaluate, and decide. ❯ JAPANESE UI LANGUAGE REVIEW: Screen-by-screen review of your product UI — identifying inconsistent terminology, unnatural phrasing, and friction points — with specific corrections for each. ▶︎ WHY THIS WORKS 8 years in growth marketing with a focus on Product-Market Fit. I've worked across SaaS products where the same core offering succeeded or failed purely based on how its Japan-facing story was structured. I also operate a boutique hotel in Japan — which means I work inside the Japanese user's trust framework every day, not from a textbook. ▶︎ HOW WE START Most projects begin with a focused audit: share your current materials (website, product screenshots, or copy), and I'll return a clear picture of what's working, what isn't, and what to change first. ▶︎ BEST FIT IF YOU ARE ・A SaaS team live in Japan but underperforming against expectations ・A company hearing that your product "feels foreign" despite being in Japanese ・A team preparing for Japan launch and wanting to avoid the most common structural mistakes Fast replies | JST-based | Available for ongoing review partnerships