Group-buy order conversion system
We automated and shipped what used to be manual order collation — with UI improvements and ongoing operation.
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Order automation Marketing automation Website AI · OCR Platform 
한 번 맡기면
Just place the order.
HEPHAESTUS · QJC Development
The forge of the godsbuilds your product
Just tell us what you need — the forge handles the rest. From order automation to a university AI center site, what we have already shipped is the proof. We put yours in your hands in 1–4 weeks too.
23
Completed Projects
1~4주
Avg. Development Time
12
AI Departments
100+
AI Agents
[ PROVEN FORGE ]
Proven by shipped systems, not slogans
23 projects, an 85% renewal rate. Not a proposal — a system that's actually deployed and running is the proof.
The trust built through training, advisory, and system delivery goes straight into your product.
0+
Completed Projects
Successful projects across diverse industries
0%
Source handover
No black box — the code is entirely yours
0%
Client Satisfaction
Proven trust through quality and responsiveness
0%
Renewal Rate
Long-term partnerships through continuous collaboration
Forged alongside us
8 companies and public institutions we have worked with through training, advisory, and system delivery.
PROVEN PORTFOLIO
We have already built and shipped
From order automation to a university AI center site — proof, not promises.
Instagram DM reply automation
We automated repetitive DM inquiries, cutting the operational load significantly.
University AI center site
We built and shipped the intro site for Sahmyook Health University's AI Entrepreneur Center.
On-site photo OCR MVP
We built an MVP that automatically extracts the data you need from construction-site photos.
AI learning platform (built & run in-house)
We built and operate a full platform with payments, gamification, and inquiry automation.
FORGED WITH
Companies and institutions forged alongside us
When you hand off your product,what CEOs really worry about
The four fears we heard most across 23 client meetings.
We block all four outsourcing failures with one structure: the team that builds it stays to the end.
01
“We paid in full but got no deliverables.”
Even though the contract specified deliverables, all we got was an incomplete demo and 'next week' responses. 6 months later, communication stopped.
02
“The dev company lacked capability.”
The proposal was impressive, but the actual workforce was just a couple of juniors. The so-called 'AI' was a single chatbot API call. The result didn't even reach proof-of-concept.
03
“The system we received has too many bugs.”
It worked fine during inspection, but daily errors in production. Fix requests require additional quotes, core logic is a black box. Rebuilding would be faster.
04
Hephaestus's answer
“The company disappeared, so no maintenance.”
Most outsourcing failures happen not at delivery, but after. QJC's team that builds the system handles maintenance too — proven by an 85% renewal rate.
[ PROVEN CRAFT ]
Faster than words —what we have already built
Just as Hephaestus forged countless masterpieces by hand,
QJC has already built and shipped order automation, a university AI center site, and field OCR systems. Just place your order — the same proven hands build yours.
01
The team that built it stays
The team that builds it owns the maintenance too. Not a vendor that vanishes — a forge proven by an 85% renewal rate.
02
A human owns the direction
A human PM owns direction and quality end to end — a partner who answers when you ask, not an outsourcer who slips away.
03
You receive a working system
The complexity is the forge’s burden. In 1–4 weeks you receive the service, fully built and deployed.
Development Process
Our systematic 4-step process ensures reliable results
01
Requirements Analysis
We analyze your business goals and technical needs to design the optimal solution.
02
Prototype Development
Rapid implementation of core features to gather early feedback.
03
Full Development & Testing
Systematic development and testing with focus on stability and scalability.
04
Deployment & Support
Stable deployment and continuous maintenance support.
[ FORGE vs HAMMER ]
Why Hephaestus
Outsourcing that burns through people vs a forge where AI departments build alongside you
Traditional Outsourcing
Slow HammerDevelopment Time
2-8 weeks
Cost
Higher
Quality Assurance
Basic
Post Support
Limited
Hephaestus
AI ForgeDevelopment Time
1-4 weeks
Cost
Reasonable
Quality Assurance
Strict QA
Post Support
3 months free
[ THE MAKERS ]
The hands behind your product
A human team owns direction and quality end to end — proven hands build it and stay with you after launch.
When you ask, you get an answer — and the people who built it handle maintenance too.
Human PM
+
Shipped work 23+
=
Finished Product 85% renewal
CEO
Sangrok Jung
FOUNDER · CEO
What he has built
- Custom web & app development
- Workflow automation builds
- Advisory for Samsung · LG U+ · KOTRA · Ministry of Education
- 23 institutional system builds
“Rather than flashy promises, what matters is owning a result that actually works — all the way to the end.”
프로필 상세보기
우리의 약속
한 번 맡기면
끝까지 함께합니다
설계
요구사항을 끝까지 파고들어, 설계부터 함께 잡아요
개발
사람 PM이 직접 챙기며 한 줄 한 줄 정성껏 만들어요
책임
배포 뒤에도 만든 팀이 끝까지 책임져요
외주에 데였더라도, 이번엔
끝까지 함께합니다
대표 강의
QJC 시스템 운영 방식
영상 보기
Frequently Asked Questions
The questions clients ask most before handing off — answered up front
What's the difference between regular outsourcing and QJC?
Regular outsourcing involves 5-10 people working for 6-12 months. QJC delivers in 2-8 weeks with 100+ AI agents and a human PM, and the same team handles maintenance.
Is 2-8 weeks really possible?
Yes. 12 AI agent departments work in parallel and reuse proven system architectures. Our track record of 23 institutional deliveries proves it.
How much does it cost?
It varies by project scope, but it's 1/10 the cost of regular outsourcing. We provide accurate quotes after a free consultation.
What happens if the PM leaves?
QJC's systems are preserved within the AI organization, not individual people. Even if the PM changes, 12 departments of AI agents keep working, so systems don't disappear.
How does maintenance work?
The team that built the system handles maintenance. The same team keeps supporting it, proven by our 85% renewal rate.
What industries is this applicable to?
Applicable to all industries including manufacturing, retail, finance, education, and healthcare. We already have delivery records to 23 institutions including Samsung Electronics, LG U+, and Ministry of Education.
How do AI agents work?
100+ AI agents divided into 12 departments (strategy, engineering, design, marketing, operations, legal, etc.) verify and recover each other's work. A human PM oversees to ensure quality.
How do I get started?
Apply for a free consultation and we'll analyze your current system in a 30-minute video meeting and provide a customized report within 2 days. No obligation.
Limited Slots3 Remaining This Month
Just place the order.
The forge builds your product
Free consult → Requirements → Prototype → Full build → Deploy
HEPHAESTUS · QJC Development Forge