Fractional CTO · Forward deployed engineer · Product builder

I turn complex ideas into products that ship.

Fractional CTO and hands-on builder for ambitious products. Nearly two decades shaping architecture, teams, and delivery across web, mobile, and applied AI.

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Parama
Current focusForward deployed · Applied AI
Tokyo, JapanWorking across time zones
20years in software
18+recent products mapped
15products live now
3web · mobile · AI

Selected work

Products built to solve real friction.

Recent work spans climate tech, testing, food discovery, accessibility, location-aware experiences, and AI-supported workflows.

View the complete build log

How I work · six steps

From direction to durable delivery.

A practical path from the first product decision to a production system the team can keep improving.

  1. Align

    Fractional CTO

    Set direction, priorities, and decision ownership before complexity compounds.

    StrategyRoadmapsTeam design
  2. Shape

    Product engineering

    Turn an ambiguous problem into a focused product slice people can use.

    Product scopeWebMobile
  3. Design

    System architecture

    Define secure boundaries, APIs, and services proportionate to the next stage.

    API designCloudSecurity
  4. Ground

    Data and platforms

    Establish pragmatic foundations for identity, data, deployment, and operations.

    PostgreSQLFirebaseDocker
  5. Accelerate

    Applied AI

    Apply AI where it improves a real decision or removes measurable friction.

    RAGLLM workflowsOCR
  6. Ship & evolve

    Quality engineering

    Build testing, observability, and feedback into every production release.

    AutomationCI/CDObservability

Operating principle

Technical strategy only matters when it reaches production.

I work from the decision to the deployment: framing the product, setting the architecture, unblocking the team, and building the critical path when that is what moves the product forward.

Explore my approach

Notes from the work

Writing on systems, quality, and building.