Hayabusa Cloud

Custom Development

We take on custom software development and contract-based engagements for metaverse, XR, online games, VTuber live streaming, and other systems that depend on real-time communication.

Why Clients Work With Us

  • Our foundation is solid computer science and systems engineering, with deep expertise in real-time communication infrastructure and high-performance backend systems.
  • We maintain our own low-level libraries and have proven delivery experience, helping us reduce unnecessary trial and error.
  • We deliver complete source code, from application features to communication engines, so your team can operate and extend the system in-house.
  • We perform low-level customization and optimization based on client requirements and system characteristics.

What We Build

  • (1) Custom real-time communication engines tailored to your business domain
  • (2) Backend infrastructure and client SDKs for products such as Unity-based applications
  • (3) Business logic, multiplayer features, and application-layer functionality
  • (4) Technical feasibility studies and software R&D
  • (5) Systems software and cloud infrastructure

Areas of Expertise

  • (1) Metaverse and XR
  • (2) VTuber live streaming platforms
  • (3) Online games
  • (4) Other systems that require real-time communication
  • (5) Software research and development

Recent Work

We recently built a domain-specific real-time engine for a VTuber live broadcasting system serving a well-known voice actress idol group in Japan.

Service and Pricing

(1) Custom Development Plan

  • Pricing: Individually estimated based on project complexity, scope, and duration
  • Reference rate: USD $110 per person-hour
  • Warranty: If defects attributable to us are found within 6 months after delivery, we will correct them free of charge.
  • For long-term projects, we may propose phased development and delivery under separate milestone-based contracts.

(2) Technical Feasibility Plan (PoC)

  • Use case: When you want to verify technical feasibility before full-scale development, we deliver a focused proof-of-concept implementation over a period of up to three months.
  • Pricing: USD $37,500
  • If the expected effort for technical validation exceeds three person-months, please contact us for a separate estimate.
  • Deliverables from technical validation are not intended for production use. This phase may use simplified architecture or temporary implementations, so some or all outputs may not be reusable in the main development phase.

(3) Contractor Services

  • Use case: Projects that require a very high degree of flexibility.
  • Standard hourly rate: USD $100
  • Workload: 1–5 days per week (flexible scheduling available)
  • Work location: Remote from Japan or on-site in the Greater Tokyo Area
  • Timezone: JST (UTC+9). We can adjust our working hours to accommodate meetings across time zones.

Quick Timezone Comparison Table

Find your local time zone below to see the corresponding time in Japan.

North America

PST (UTC−8)JST (UTC+9)PDT (UTC−7)JST (UTC+9)EST (UTC−5)JST (UTC+9)
8:00 AM1:00 AM +1d8:00 AM12:00 AM +1d8:00 AM10:00 PM
9:00 AM2:00 AM +1d9:00 AM1:00 AM +1d9:00 AM11:00 PM
10:00 AM3:00 AM +1d10:00 AM2:00 AM +1d10:00 AM12:00 AM +1d
11:00 AM4:00 AM +1d11:00 AM3:00 AM +1d11:00 AM1:00 AM +1d
3:00 PM8:00 AM +1d3:00 PM7:00 AM +1d3:00 PM5:00 AM +1d
5:00 PM10:00 AM +1d5:00 PM9:00 AM +1d5:00 PM7:00 AM +1d
7:00 PM12:00 PM +1d7:00 PM11:00 AM +1d7:00 PM9:00 AM +1d
9:00 PM2:00 PM +1d9:00 PM1:00 PM +1d9:00 PM11:00 AM +1d

Europe

WET (UTC+0)JST (UTC+9)CET (UTC+1)JST (UTC+9)EET (UTC+2)JST (UTC+9)
8:00 AM5:00 PM8:00 AM4:00 PM8:00 AM3:00 PM
9:00 AM6:00 PM9:00 AM5:00 PM9:00 AM4:00 PM
10:00 AM7:00 PM10:00 AM6:00 PM10:00 AM5:00 PM
11:00 AM8:00 PM11:00 AM7:00 PM11:00 AM6:00 PM
3:00 PM12:00 AM +1d3:00 PM11:00 PM3:00 PM10:00 PM
5:00 PM2:00 AM +1d5:00 PM1:00 AM +1d5:00 PM12:00 AM +1d
7:00 PM4:00 AM +1d7:00 PM3:00 AM +1d7:00 PM2:00 AM +1d
9:00 PM6:00 AM +1d9:00 PM5:00 AM +1d9:00 PM4:00 AM +1d

Local daylight saving rules may change the applicable time zone abbreviation and offset.

(4) Warranty Extension Option

  • Use case: When you wish to extend the warranty period for deliverables in custom development projects.
  • This option extends the free correction period for defects attributable to us beyond the standard 6-month warranty period after delivery.
  • Pricing: 1% of the total deliverable amount per month of extension
  • Maximum extension period: Up to 24 months

We retain the following rights and do not transfer them to clients:

  • (1) Copyrights, patent rights, know-how, trade secrets, and other intellectual property rights that we already own prior to the contract start date
  • (2) General algorithms, data structures, programming techniques, design patterns, and other technically reusable components
  • (3) Technologies already in the public domain, industry-standard technologies, and implementation methods that must be adopted due to technical necessity

For items not covered above, we grant clients a non-exclusive license to use our proprietary software to the extent necessary for the agreed business purposes.

Tax Information

  • We are a qualified invoice issuer under Japan’s Qualified Invoice System.
  • VAT number: T5011001149663
  • Other certificates are available upon request, including a Certificate of Residence in Japan.

If you need a high-performance real-time system, please share your requirements with us through our free consultation.

Contact Us