Maru Tech Ltd. — Independent Enterprise IT Consultancy (Est. 2015)
Gov of Canada Secret Cleared • TOGAF® & Oracle SOA 12c Certified • AI Vibe Coding • Claude Code & Antigravity
INDEPENDENT IT CONSULTING SINCE 2015 • LED BY SUN IL KIM

Enterprise-Grade Architecture.
AI-Accelerated Velocity.

Founded in 2015, Maru Tech Ltd. is a specialized IT consulting practice owned and operated by Sun Il Kim—combining 20+ years of senior enterprise Java, Cloud, and SOA architecture with cutting-edge AI Vibe Coding workflows using Claude Code and Google Antigravity.

Explore Practice Areas Discover AI Vibe Coding
Est. 2015 Independent Consultancy
20+ Yrs Software Engineering Mastery
Secret Gov. of Canada Clearance
AI-Native Claude Code & Antigravity
Direct Principal Engagement
Mr. Sun Il Kim
Founder & Principal Consultant, Maru Tech Ltd.
B.Sc. Applied Computer Science • TOGAF® Certified • Scrum Master
AI & Vibe Coding Stack Claude Code, Google Antigravity, Agentic Prototyping & Refactoring
Core Enterprise Stack Java / J2EE, Spring Boot, OpenShift / K8s, Oracle SOA/OSB 12c, ADF
Architecture & Quality TOGAF® Enterprise Architecture, Agile (Scrum / Kanban), TDD, WCAG
Security Credential Government of Canada — Secret Security Clearance
AI Vibe Coding Cloud Microservices SOA & Middleware

PROVEN TRACK RECORD DELIVERING MISSION-CRITICAL SYSTEMS FOR

Bank of Canada Central Banking & Financial Systems
Agriculture & Agri-Food Canada National Financial & Producer Programs
Health Canada Public Health & Regulatory Platforms
Employment & Social Development Canada Enterprise SOA & Cross-Agency Integration
Statistics Canada Digital Workflow & Enterprise Portals
PRACTICE AREAS & CONSULTING MODEL

Senior Architectural Craftsmanship Meets Modern AI Delivery

Established in 2015, Maru Tech Ltd. operates on a direct principal-led model. The senior architect who designs your solution is the exact engineer who builds, tests, and deploys your production system—now supercharged by next-generation AI coding agents.

01

100% Principal Hands-On Execution

Zero agency bloat or junior hand-offs. Every microservice, integration pipeline, and database optimization is personally engineered by Sun Il Kim.

02

AI Vibe Coding + 20+ Yrs Judgment

Harnessing Claude Code and Google Antigravity for rapid prototyping and code generation, governed by two decades of enterprise architectural rigor.

03

Federal & Financial Grade Readiness

Active Government of Canada Secret clearance, TOGAF® & Oracle SOA 12c certifications, and deep adherence to WCAG accessibility and security standards.

TRENDING PRACTICE

AI-Augmented “Vibe Coding” & Agentic Delivery

Accelerating full-stack software creation, legacy refactoring, and complex system modernization using state-of-the-art AI coding agents—guided by senior enterprise engineering discipline.

  • Agentic development workflows with Claude Code & Google Antigravity
  • Rapid interactive UI/UX prototyping & full-stack application scaffolding
  • AI-assisted legacy code comprehension, boilerplate elimination & migration
  • Automated unit/integration test generation & architectural verification

Cloud-Native Java & Microservices Modernization

End-to-end design and migration of monolithic or legacy middleware processes into resilient, cloud-hosted Spring Boot applications on Red Hat OpenShift & Kubernetes.

  • Java / J2EE, Spring Boot, Spring MVC, Hibernate / JPA & EclipseLink
  • Legacy integration & MuleSoft-to-Spring Boot cloud container migration
  • Dynamic business rules engineering using Drools & CDI
  • OpenShift / Kubernetes container orchestration & DevOps automation

Oracle Fusion Middleware & Enterprise SOA Integration

Certified architecture and implementation of multi-system integration backbones using Oracle SOA Suite 11g/12c, Oracle Service Bus (OSB), and enterprise messaging.

  • Reusable enterprise OSB & SOA application framework templates
  • Guaranteed message delivery across platforms via JMS & IBM MQ
  • BPEL process orchestration, error-recovery subprocesses & Human Task
  • RESTful & SOAP Web Services, WSDL, XSD, XSLT & XQuery transformations

High-Availability Financial Systems & Data Architecture

Mission-critical transaction processing, payment authorization engines, bulk data ingestion pipelines, and high-performance relational database modeling.

  • Oracle (10g–19c), MS-SQL, DB2, Sybase & MySQL schema design & PL/SQL tuning
  • High-volume batch interfaces, Excel/PDF ingestion & quarantine workflows
  • Enterprise reporting & document generation with JasperReports
  • Performance troubleshooting, load testing & high-availability tuning

WCAG-Accessible Web Portals & Digital Workflows

Modernizing paper-based and manual operations into streamlined electronic request, approval, and digital-signature web applications compliant with public-sector accessibility standards.

  • WCAG-compliant responsive interfaces using Angular, JSF & jQuery
  • Electronic forms & enterprise portals with Oracle ADF & WebCenter
  • Test-Driven Development (TDD) achieving 80%+ code coverage (JUnit, EasyMock)
  • End-to-end automated regression suites with Selenium, Parasoft & SoapUI

Enterprise Architecture (TOGAF®) & Agile Leadership

Strategic SOA and cloud maturity assessments, technical/economic feasibility prototyping, and hands-on Scrum Master and Team Lead guidance.

  • TOGAF® Foundation-aligned enterprise architecture & IT strategy analysis
  • Agile Scrum Master leadership: capacity, velocity & sprint backlog management
  • Cross-team framework supervision, code reviews & developer mentoring
  • Translating complex business rules into clean functional specifications
NEXT-GEN ENGINEERING PARADIGM

Why “Vibe Coding” Works Best in the Hands of a 20+ Year Architect

AI-driven Vibe Coding—building software through natural-language intent and agentic collaboration with tools like Claude Code and Google Antigravity—has transformed development speed. However, raw AI output without senior architectural oversight often leads to brittle, insecure systems.

At Maru Tech Ltd., AI agents are directed by two decades of enterprise Java, SOA, and database mastery. You get the explosive speed of Vibe Coding combined with the structural integrity, security, and maintainability of a TOGAF®-certified Principal Architect.

Claude Code Agentic CLI & Deep Codebase Refactoring
Google Antigravity Autonomous Multi-Step Full-Stack Engineering
AI-Driven TDD Automated JUnit, Selenium & Edge-Case Verification

The Maru Tech AI-Augmented Advantage

⚡
10x Faster Prototyping & Scaffolding

Rapidly spin up working prototypes, WCAG-compliant UIs, and Spring Boot service templates to validate technical feasibility in hours instead of weeks.

🛡️
Senior Architectural Guardrails

Every AI-generated module is reviewed, hardened, and structured for enterprise concurrency, transaction safety, and clean OOP/SOLID design patterns.

🔄
Accelerated Legacy Modernization

Use agentic workflows to analyze complex legacy schemas, PL/SQL procedures, XML/XSLT transformations, and middleware flows for seamless cloud migration.

TECHNICAL CAPABILITIES

Full-Spectrum Enterprise & AI Technology Stack

A comprehensive toolkit uniting AI-native Vibe Coding workflows with battle-tested enterprise Java, Oracle Fusion Middleware, and relational database platforms.

AI

Vibe Coding & Agentic AI Engineering

Claude Code Google Antigravity AI Vibe Coding Workflows Agentic Prototyping & Scaffolding AI-Assisted Legacy Modernization Automated Unit Test Synthesis Prompt & Context Architecture AI-Augmented Code Review & QA
01

Java, Cloud & Application Platforms

Java (J2EE / Java 8 / Java 9+) Spring Boot Spring MVC & Core Red Hat OpenShift Kubernetes Hibernate / JPA / JDO EclipseLink CDI (Dependency Injection) Drools Rules Engine Oracle WebLogic Apache Tomcat LDAP Security
02

SOA, Middleware & Enterprise Messaging

Oracle SOA Suite 11g / 12c Oracle Service Bus (OSB) Oracle BPM / BPEL Oracle ADF IBM MQ & JMS Oracle Business Rules Engine Oracle WebCenter Portal MuleSoft Cloud Migration Human Task & SOA Adapters RESTful & SOAP Web Services WSDL / XSD / XML / XSLT / XQuery JAXB & WLST
03

Databases, Accessible UI & DevOps QA

Oracle 10g / 11g / 19c MS-SQL, DB2, Sybase & MySQL PL/SQL & Performance Tuning WCAG Accessible UI Angular / AngularJS / JSF / jQuery JasperReports Agile (Scrum & Kanban) / TDD JUnit, EasyMock, DBUnit & Selenium Parasoft SOAtest & SoapUI Jenkins, TeamCity, Gradle, Maven & Git

The Meaning Behind Maru Tech

In Korean, “Maru” (마루) signifies the highest ridge, summit, or foundational floor where people gather. Founded in 2015, our dual-arch emblem reflects the union of solid architectural foundations and modern technological elevation.

Company Maru Tech Ltd. (Est. 2015)
Founder & Principal Sun Il Kim, B.Sc.
Security Clearance Government of Canada — Secret
Architecture & AI TOGAF® • Claude Code • Antigravity
FOUNDER & PRINCIPAL ARCHITECT

Meet Sun Il Kim

Founder of Maru Tech Ltd. (Est. 2015) and Senior Enterprise Software Architect with over 20 years of industry experience across finance, public health, and federal government systems.

After building a deep foundation in enterprise Java and database engineering, Mr. Sun Il Kim founded Maru Tech Ltd. in 2015 to provide direct, principal-level IT consulting to Canada’s most demanding institutions—delivering mission-critical systems for Statistics Canada, Employment and Social Development Canada (ESDC), Health Canada, Agriculture and Agri-Food Canada, and the Bank of Canada.

Known for his analytical precision and collaborative communication style, Sun Il bridges complex business requirements with resilient technical execution. Today, he pairs his 20+ years of expertise in Java/J2EE, Spring Boot, OpenShift, Oracle SOA/OSB, and TOGAF® Enterprise Architecture with modern AI Vibe Coding tools—including Claude Code and Google Antigravity—to deliver higher-quality software in a fraction of traditional timelines.

His disciplined approach to leadership and resource management draws from diverse life experiences: serving as a Private 1st Class in the Republic of Korea Army (managing IT support, training plans, and operational logistics), teaching computer programming (Java, C++, Visual Basic, COBOL), and serving as President of the Inha Amateur Astronomical Association (IAAA).

AI-Augmented Principal Delivery Combining 20+ years of architectural judgment with Claude Code and Google Antigravity for rapid, reliable execution.
Agile & Quality Leadership Experienced Scrum Master and Team Lead championing Test-Driven Development (TDD) and 80%+ automated code coverage.
VERIFIED QUALIFICATIONS

Certifications, Clearance & Academic Honours

Industry Certifications

  • TOGAF® Enterprise Architecture Foundation The Open Group Certified Architecture Standard
    Certified
  • Oracle SOA Suite 12c Certified Implementation Specialist Oracle Fusion Middleware Enterprise Integration
    Certified
  • Oracle SOA Suite 11g Certified Implementation Specialist Oracle Service-Oriented Architecture Specialist
    Certified
  • Sun Certified Java Programmer (SCJP) Java 2 Platform Core Programming Certification
    Certified
  • Microsoft Certified Database Administrator (MCDBA) Microsoft SQL Server Database Developer / Admin
    Certified
  • Cisco Certified Network Associate (CCNA) & MCSE Enterprise Networking & Microsoft Certified Systems Engineer
    Certified

Academic Education & Clearance

SECURITY CLEARANCE

Government of Canada — Secret Clearance

Authorized for sensitive federal systems, central banking infrastructure, and inter-departmental data exchange mandates.

University of Winnipeg • Winnipeg, MB

Bachelor of Science (B.Sc.) in Applied Computer Science

Applied Computer Science Degree Program

Red River College • Winnipeg, MB

Computer Analyst / Programmer Diploma

Information Technology & Software Development

★ Graduated with Honours • 4.20 GPA • Achieved Honour Roll Status Every Term

Inha University • Incheon, Korea

Electronics Engineering Studies

Completed 2nd Year of Bachelor Study • President, Inha Amateur Astronomical Association

Ready to Accelerate Your Next Initiative?

Whether you need a principal consultant to modernize legacy middleware into cloud-native Spring Boot microservices, architect an Oracle SOA/OSB solution, or accelerate delivery with AI Vibe Coding workflows, Maru Tech Ltd. delivers senior execution from day one.

Initiate a Consultation

Send a direct inquiry to Sun Il Kim at Maru Tech Ltd. (contact@marutech.ca).