A1
Architecture
Systems designed to last and scale, built on clean foundations your team can grow on.
Tokyo, Japan
We build software
and the teams
that ship it.
A3 Tech Group is a Tokyo-based engineering studio. We deliver production full-stack systems, AI automation, and the kind of hands-on training and partnership that turns an idea into something real.
- 10+ yrs
- combined senior delivery
- Full-stack
- web, cloud, AI, automation
- Worldwide
- remote-friendly partnership
Trusted across
- Fintech
- SaaS
- E-commerce
- Healthcare
- Manufacturing
- EdTech
The name
The three A's behind A3.
Architecture, Analytics, Automation. Three disciplines, one team, and the shape of how we work.
A2
Analytics
Turning data into clear decisions, so you can see what's working and what comes next.
A3
Automation
Letting software and AI handle the repetitive work, so your people do the work that matters.
Three A's, three ways we show up.
How we buildArchitecture·Analytics·Automation
How we partnerAlign·Assist·Ascend
What you gainAdapt·Accelerate·Achieve
01 · Skills
What we do, and do well.
Four core capabilities, one senior team. Swipe through to see how we can help.
01Full-Stack Development
End-to-end product engineering: clean APIs, considered front-ends, and infrastructure that holds up. From a blank repository to a system your team can own, we write code that still makes sense a year from now.
Track record
Experience you can build on.
Real, ongoing work, delivered through sincere dedication and genuine, all-out effort.
Outlier
AI training & model evaluation (ongoing)
Mercor
AI talent & data projects (ongoing)
Aligner
AI alignment & data quality (ongoing)
3 full-stack apps
web platforms in active development
From the first idea to launch and the years after, we handle the whole stack, so you are never left stitching vendors together.
02 · Why us
Why collaborate with A3 Tech Group?
Not a vendor you brief and forget. A technology partner that thinks about your business the way you do.
What makes A3 Tech Group different?
We start from your business, not from a stack of tools. Then we bring senior engineering and real AI experience to build something that scales with you.
- Business-first thinking
- Long-term partnerships
- AI & automation expertise
- Modern technology stack
- Transparent communication
- Scalability & future growth
Why should businesses trust us?
Trust is earned in how we deliver: predictably, with quality you can see, and support that does not disappear after launch.
- Commitment to quality
- Reliable delivery process
- Focus on measurable results
- Technical excellence
- Long-term support
What partnerships are we looking for?
We work best with people who think in years, not weeks. If you value a real relationship over a transaction, we should talk.
- Business collaborations
- Strategic partnerships
- Technology partnerships
- Startup collaborations
- Enterprise projects
- Long-term client relationships
How do we approach collaboration?
We listen first, agree on what success looks like, and keep you in the loop the whole way. Accountability runs both directions.
- Understand business goals first
- Transparent communication
- Shared vision & accountability
- Continuous improvement
- Mutual growth & success
What values guide our work?
The same principles guide every decision, whether anyone is watching or not.
- Trust
- Integrity
- Innovation
- Accountability
- Long-term thinking
- Continuous learning
03 · Approach
Craft over noise.
We believe in steady, deliberate improvement, applied to how software gets made. Small steps, shipped often. Nothing goes out that we wouldn't run ourselves.
- I
Listen first
We start with your constraints and your customers, not our favourite framework. The right tool is the one your team can live with.
- II
Build in the open
Short cycles, visible progress, working software early. You see decisions as they happen, never a black box.
- III
Leave it better
We hand over documented, tested systems, and the knowledge to run them. Our goal is to make ourselves optional.
04 · Stack
The tools we reach for.
Pragmatic, proven, and chosen per project, never cargo-culted.
Frontend
- React
- Next.js
- TypeScript
- Vue
- Tailwind
Backend
- Node.js
- Go
- Python
- PostgreSQL
- GraphQL
AI / Automation
- Claude & OpenAI
- LangChain
- n8n / Zapier
- Vector DBs
- RAG
Cloud & Ops
- AWS
- GCP
- Docker
- Kubernetes
- Terraform
05 · Partnership
Built together, built to last.
We're genuinely excited to bring our expertise to the table and help turn your vision into something real.
Every result we're proud of started the same way, with people who trusted one another and shared a clear goal. Projects always have their hard moments; what carries them through is steady communication, professionalism, and a real commitment to each other's success.
To us, collaboration is more than working side by side. It's combining strengths, trading honest ideas, and opening doors none of us could reach alone. Good things get built through consistent effort and a genuine willingness to support the people around you.
The partnerships we value most aren't about quick wins. They grow over time on a foundation of reliability, mutual respect, and shared long-term goals. When our partners and our team line up behind the same vision, the results tend to outlast the project itself.
Right now we're looking to connect with professionals, founders, and business-minded people, especially across the United States and Canada, who value real, growth-oriented partnerships. Whether you're focused on expansion, new technology, or simply creating opportunities, we'd love to explore what we could build together.
And you don't need to be technical to work with us. We bring the engineering and the AI know-how; what we ask for is openness, trust, and a real spirit of collaboration. That, more than anything, is what makes a partnership work.
You also don't need a technical background to earn alongside us. Through referral and revenue-share partnerships, your network, market knowledge, and relationships can generate real income, while we quietly handle all of the technical delivery behind the scenes.
In other words, even without expertise in the field, meaningful results and real revenue can come from working together. We'll walk you through exactly how it works during a short call.
Together, we can turn ideas into opportunities, and opportunities into something that lasts.
Start a conversationProof
From an idea to real revenue.
What collaboration, applied to a single idea, can actually produce.
We put our work where our words are. The chart below tracks the average revenue generated per collaborating partner, starting from nothing more than an idea, our engineering, and a shared commitment to make it work.
The first two months are preparation: research, building, and laying the foundation, with no revenue by design. From the third month real income begins, passing $4,000 per collaborator. By the tenth month it grows to more than $13,000.
No technical background was required from our partners. These results came from the idea itself, a genuine spirit of collaboration, and the technology we built around it.
2 monthspreparation period
$4K+by month 3
$13K+by month 10
Our philosophy
Great achievements are rarely built alone. The strongest results come from trusted partnerships where ideas, expertise, and commitment work toward a shared vision.
Meaningful success takes patience. The work that matters is rarely finished in a single sprint; it is built steadily, by people who keep showing up for one another.
Strong partnerships are tested by the hard parts, not the easy ones. When something breaks or the plan changes, a real partner stays in the room and solves it with you.
Trust is the foundation everything else rests on. Once it is there, decisions move faster, feedback gets honest, and the work gets noticeably better.
Innovation rarely arrives from one mind in isolation. It grows when knowledge and experience are shared openly and people feel safe to try, question, and refine.
Long-term thinking compounds. Choices made for the years ahead, rather than the next quarter, tend to create the bigger opportunities later.
The best results come from rowing in the same direction. When goals are shared and the destination is clear, good teams find a way to reach it.
06 · Founders
The people behind A3.
Two founders, one standard: do honest work, build real relationships, and leave every project better than we found it.
Daniel (Hiro Tanaka)
Co-Founder & CTO
Daniel leads engineering and applied AI at A3 Tech Group. He has spent his career at the intersection of solid software and practical AI, architecting systems, mentoring engineers, and keeping delivery honest. He believes good technology is quiet: it works, it lasts, and it gets out of the way.
- 10+ years building and scaling production software
- Full-stack & AI systems across fintech, SaaS and e-commerce
- Leads architecture, code quality and AI automation
Shigefumi Kobayashi
Co-Founder & CEO
Shigefumi connects the engineering to the business. He focuses on partnerships, client relationships, and making sure every project ladders up to a real outcome. His belief is simple: technology only matters when it helps people and businesses move forward.
- Background in business strategy and operations
- Builds long-term client and partner relationships
- Drives growth, delivery and partnership across markets
Company
Company profile
- Company name
- A3 Tech Group
- Established
- 2024
- Location
- Tokyo, Japan
- Representatives
- Daniel (Hiro Tanaka), Shigefumi Kobayashi
- Business
- Full-stack development, AI automation, CMS & CRM solutions, AI training
- Languages
- English / 日本語 / 中文
07 · FAQ
Questions, answered straight.
The things partners and clients usually ask before we begin. If yours isn't here, just ask.
We work across fintech, SaaS, e-commerce, healthcare, manufacturing, and education, among others. The domain matters less than the problem; if it can be solved with software or AI, we can help.
We begin by understanding your goals, agree on scope and success criteria, then build in short, visible cycles. You see working software early and stay involved at every step.
Yes. Launch is the start, not the finish. We offer maintenance, monitoring, and continuous improvement so your system stays reliable as your business grows.
Absolutely. We regularly extend, integrate with, and improve existing codebases and third-party tools. We meet your stack where it is rather than forcing a rebuild.
Security is built in from the start: least-privilege access, encrypted data, dependency and code review, and secure deployment practices. We treat your data as carefully as our own.
React, Next.js, TypeScript, Node.js, Go, and Python on the engineering side, plus modern AI tooling like Claude, OpenAI, RAG, and automation platforms. We choose per project, never by fashion.
They remove repetitive work, reduce errors, and free your team for higher-value tasks. Done well, automation pays for itself by saving hours every week and improving consistency.
Regular, predictable updates through whatever channel suits you, with clear ownership and no surprises. You always know what is happening and why.
Yes. Most of what we build is custom, shaped to your exact workflow and goals rather than bent to fit off-the-shelf software.
Yes. We migrate legacy systems, refactor fragile code, and bring older applications up to modern standards of speed, security, and maintainability, usually in safe, incremental steps.
We plan realistically, break work into milestones, and track progress openly. If something shifts, you hear about it early, with options, not at the deadline.
Shared goals, honest communication, and trust on both sides. The strongest projects happen when client and team operate as one group working toward the same outcome.
Context compounds. The longer we work together, the better we understand your business, which means faster decisions, fewer mistakes, and work that keeps getting better.
Visible progress, plain-language updates, and access to the work as it happens. There is no black box; you can always see where things stand.
Yes. We move fast and pragmatically for startups, and bring the rigor, documentation, and process that enterprises need. We scale our approach to the stage you are at.
We innovate where it creates value, not for novelty. New technology earns its place by solving a real problem better than the proven alternative.
We build systems that handle growth: solid architecture, automation that removes bottlenecks, and infrastructure that expands with demand instead of breaking under it.
We expect them to. Our process is built for change, so evolving requirements are handled calmly through re-prioritisation rather than treated as a crisis.
By outcomes that matter to you: time saved, revenue enabled, users served, or risk reduced. We agree on what success looks like up front and measure against it.
Because we act as a long-term partner, not a billable vendor. You get senior people, business-first thinking, real AI expertise, and a team genuinely invested in your result.
08 · Contact
Let's build something that lasts.
Tell us what you're working on, or book a 30-minute call. No slide deck, just a straight conversation.
Send us a message
We reply to every enquiry within one business day.
- LocationTokyo, Japan
- ResponseWithin 1 business day
- LanguagesEnglish / 日本語 / 中文
Prefer to talk? Book a call
Grab a 30-minute slot directly in our calendar.
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