• 日本語
  • English
    • Contact Us
  • 日本語
  • EN

    • KPI-BACKED · OFFSHORE DEVELOPMENT · JAPAN LED

    Japanese consultants design offshore development strategies.
    Vietnamese engineers ship the code. You pay only when KPIs are met.

    Pay for outcomes.

    Not hours. Not promises.

    Book a 30-min review → See how it works ↓

    No NDA required · 30 minutes · In English or Japanese

    Day 30 First KPI lands or month one is free
    Day 90 Every KPI lands or full refund
    0 hours billed Invoiced on milestones
     See the three models compared
    18+
    Enterprise clients
    5/5
    Avg. client rating
    66+
    Projects shipped
    15%
    Avg. cost saved
    60d
    KPI guarantee

    OUTSOURCING SCENARIOS

    3 Situations, 1 Outcome-Based Outsourcing Model.

    Not generic offshore outsourcing. Each case has a defined fix, fixed price, and measurable KPIs.

    Case 01 · Post-Series A Team

    Just Raised? Hiring Can't Keep Up With Roadmap.

    Hiring takes 6 months. Your milestone is in 3. You need a senior offshore team that ships from week one.

    Fix Our senior dev team starts week one. KPI met by day 30, or month one is free.
    See our Series A strike-team model

    Case 02 · White-Label Development

    Need A White-Label Partner Your Clients Will Never See?

    We work in your repo, attend your client calls as your team, and ship under your brand. Mutual NDA before message one.

    Fix Fixed-price, BrSE engineers, zero scope creep. Delivered under a 90-day SLA.
    See how white-label works

    Case 03 · EdTech · AI Cost Audit

    Paying For AI Tools But Nobody Tracks The ROI?

    You're paying $10K~50K/month on AI tools nobody audited. Costs climb, ROI is unclear, your CFO is asking.

    Fix 30-day audit, identify waste, build roadmap, ship result. We bill on the savings, not the hours.
    Start with a 30-day AI cost audit

    THE DIFFERENCE

    Not Another Vendor. An Accountable Outsourcing Partner.

    Most offshore teams sell hours. We sell shipped features with contractual guarantees. Here's the difference.

    ✗ Hourly / Project-Based
    ✓ Outcome-Based (PROS)
    Billing model
    Hourly: pay for time, not results
    Fixed-price, milestone-based, KPI checkpoints
    Delivery commitment
    Estimates only, no financial accountability
    Contractual SLA, zero charge if milestone missed
    Post-launch
    No docs, no tests, no support
    Full docs, test coverage, 90-day post-launch support
    Communication
    Language barrier, no single owner
    Japanese-speaking BrSE on every project
    Scope creep
    Vague estimates, endless change requests
    Locked scope, weekly sprint reports, no surprises

    HOW IT WORKS

    From first call to production in a predictable sequence.

    01

    Free 30-min call

    Talk to a senior engineer
    not a sales rep.

    Day 1
    02

    2-week Discovery Sprint

    Codebase review, scope, KPIs, fixed-price proposal. On us.

    Week 1–2
    03

    First deliverable in production

    Real code shipped to your production environment.

    Month 1
    04

    90-day KPI checkpoint

    KPIs hit
    or we work month four free.

    Month 3
    Start with a Discovery Call →
    DELIVERY
    99%
    on-time delivery rate across 66+ projects since 2020
    SPEED
    60days
    average from kickoff to first production deploy
    RELIABILITY
    Zero
    billing if we miss the agreed delivery milestone

    Outcome-Based Outsourcing. We Stake Our Fee On Your KPIs.

    Every project ties to measurable business outcomes. Fixed-price proposals, milestone-based billing, no hourly charges. If we don't hit your KPIs, you don't pay.

    ✓ We work in your repo, your tools, your timezone
    ✓ Code & requirements fully documented
    ✓ Japanese-speaking BrSE on every project
    Your Repo · Your Tools · Your Brand
    BrSE Bridge engineer: bilingual, on your timezone
    PM Project manager: scope, timeline, risk
    DEV 2–8 engineers: your stack, your repo
    QA Quality assurance: every sprint, every build
    Close KPI or Full Refund
    if (kpisMet) {
      celebrate();
    } else {
      refund(client, "full");
    }
    Conversion uplift over 90-day sprint
    8%
    Baseline
    22%
    Day 30
    31%
    Day 90

    +287% uplift · ROI guaranteed or refunded

    AI audit → roadmap → production in 60 days.

    Structured AI audit for EdTech, MarTech, and SaaS teams. Identify high-impact use cases, build a KPI roadmap, ship the first feature in 30 days.

    First KPI missed? Month one is free. 90-day full guarantee or complete refund.

    30
    Day AI Cost Audit Flat-rate · Outcome-guaranteed. Identify waste, build roadmap, ship first result.
    Get the 90-day guarantee →

    Post-Series A? We're Your Offshore Strike Team.

    Hiring senior engineers takes 6 months. Your milestone is in 3. We drop in week one, ship first deliverable by day 30, and leave your codebase cleaner than we found it.

    Discuss our Series A program →
    90 Days · Milestone-Based · No-Surprises
    Week 1–2 Discovery sprint, architecture review
    Week 3–4 First deliverable in production
    Month 2–3 Core features shipped, KPIs tracked
    Month 3+ KPI checkpoint, handoff or continue

    THE TEAM

    The people behind the guarantee.

    Full-time engineers, NOT contractors. Shipping production software for Japan, the US, and Europe since 2020.

    Tony Hoang — Founder & CEO

    Tony Hoang

    Founder & CEO

    View profile →
    Hakuhodo · Antler · 15+ yrs VN-JP delivery
    Sawada Tsubasa — Business Partner

    Sawada Tsubasa

    Business Partner

    View profile →
    Allied Architects IPO · 20 yrs JP enterprise
    Hirano Yusuke — DX Consultant

    Hirano Yusuke

    DX Consultant

    View profile →
    25 yrs software dev · Built VN dev base
    Vietnam Leadership
    Michael Tran — COO

    Michael Tran

    COO

    View profile →
    NTT DATA · 15+ yrs IT operations
    Ryan Nguyen — CDO

    Ryan Nguyen

    CDO

    View profile →
    Rikkei · 15+ yrs engineering & design
    Brice Nguyen — CPO

    Brice Nguyen

    CPO

    View profile →
    Topica · 10+ yrs product integration

    CREDENTIALS

    Credentialed, not just capable.

    PMP Certified PMP
    PSM Certified PSM I
    ISTQB Certified ISTQB
    Top Custom Software Development Company Top Dev Co.
    Google Partner Google Partner
    🛡️
    Zero charge if not delivered Outcome-based, you pay for results, not hours
    📈
    First KPI in 30 days Flat-rate engagement. KPI hit or month one free
    ⚡
    60-day delivery SLA From first call to first production deploy

    FAQ

    Frequently asked questions

    What does "outcome-based outsourcing" mean?
    Outcome-based outsourcing means we charge for shipped, measurable results, features deployed, KPIs hit, costs reduced, NOT engineering hours billed. Every project has a fixed-price proposal, 30-day first-KPI checkpoint, and 90-day guarantee. Miss the KPI, full refund.
    Pay-for-outcomes vs time-and-materials, what's the difference?
    Time-and-materials bills hourly with no ceiling, regardless of result. Pay-for-outcomes ties billing to shipped milestones, features deployed, KPIs hit. With time-and-materials, you carry all delivery risk. With pay-for-outcomes, the vendor stakes their fee on agreed results. Miss the milestone, refund or rework at no extra cost.
    Who is Protean Studios built for?
    Three buyer types: SaaS founders post-Series A who need to ship features fast, Japanese SIers and consulting firms who need a white-label development partner, and EdTech / MarTech platforms that need a structured AI cost audit with guaranteed ROI.
    What's the typical timeline from first call to production?
    Week 1–2: free Discovery Sprint (architecture audit + fixed-price proposal). Week 3–4: first deliverable in production. Month 2–3: core features shipped with KPIs tracked. 60-day delivery SLA from engagement start.
    How does the 90-day KPI guarantee work?
    KPIs are defined and signed before development starts. If they're not met within 90 days, we continue working at zero cost, or issue a full refund. The first KPI is guaranteed within 30 days; if missed, month one is free.
    What happens if you miss a milestone?
    Three things, depending on severity. Miss the first 30-day KPI: month one is free. Miss the 90-day final KPI: we continue working at zero cost or issue a full refund, your choice. Miss any milestone in between: we absorb the cost overrun, scope stays locked. Documented in every contract.
    Do you support Japanese-language communication?
    Yes. Every project includes a BrSE (Bridge Software Engineer) fluent in Japanese. We maintain a dedicated office in Ginza, Tokyo, and have served 18 Japanese enterprise clients since 2020.
    Can you work as a white-label partner under our brand?
    Yes. We build software features and full products under your brand for your clients. We work in your repo, attend your client calls as your team, and ship under mutual NDA. Fixed-price, dedicated BrSE, 60-day delivery SLA. Your clients see your name, we stay invisible.

    CONTACT

    Tell Us What's Broken. We'll Tell You Honestly If We Can Fix It.

    No sales pitch. No commitment on the first call. We scope the problem first, then tell you which entry point makes sense.

    • →Free architecture review of your current system
    • →Honest assessment, if we're not the right fit, we say so
    • →Fixed-price proposal within 5 business days
    • →No NDA required to start the conversation