Engineering Manager | Technical Architect

Arunkumar M designs and delivers scalable, high-performance applications for enterprise SaaS products.

11+ years across React, Angular, TypeScript, Java, Spring-boot, micro-frontends, design systems, cloud delivery, and AI-assisted engineering. I lead teams, shape product architecture, and turn complex delivery programs into reliable, user-flexible applications.

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Design
Development
Management
Leadership
AI-Assisted
Cloud
0+Years in engineering
0+Engineers led
0+Reusable UX components
0%Sprint commitment success
About

A hands-on engineering leader passionate about driving continuous improvement and innovation.

My task intersects with design of architecture, delivery, people leadership, and team building.

Technical Architecture

I design and develop maintainable applications with clean component boundaries, predictable data flow, reusable design patterns, and strong performance standards adapting to security & accessibility standards.

Engineering Leadership

I have led 40+ engineers across delivery, code quality, mentoring, sprint planning, stakeholder reporting, risk management, and production stability.

AI-Assisted Engineering

I use tools like Claude, Copilot, Cursor, Bolt, and ElevenLabs to accelerate code reviews, unit-test preparation, checklists, voice workflows, and delivery quality.

Career Path

From enterprise systems developer to Application and Engineering management.

Focus: UI team leadership and scalable frontend architecture

  • Led a 12-member UI team building scalable applications with React and Angular.
  • Defined application architecture, component structure, data flow, and maintainable UI patterns.
  • Implemented full-stack solutions across MERN, MEAN, Java, REST services, and SQL.
  • Strict adherence to accessibility, security, and performance standards across multiple product lines.

Outcome: Delivery for multiple product lines with reusable UI patterns and design governance for Government and Enterprise clients.

Technical Stack

A broad toolkit for building and operating modern applications.

Frontend Architecture

React.jsAngularTypeScriptJavaScript ES6+HTML5CSS3Micro-frontends

Design Systems

Component LibrariesStorybookCSS Modulesmaterial-uiShadcnTailwind CSSResponsive UIWCAG

Backend & Data

Node.jsExpress JSJavaSpring-bootMicro-servicesREST APIsOracleMySQLMongoDB

Cloud & DevOps

AWS S3AzureCloudFrontAzure DevOpsApacheWebLogicJenkinsNginx

AI Engineering

GitHub CopilotCursorClaudeElevenLabsChecklist AutomationUnit Test Generation

Quality & Security

JestJasmineKarmaJunitSASTDASTBlack DuckBurp Suite
Projects

Selected delivery work and architecture outcomes.

Healthcare engagement platform

Delivered a HIPAA-aware React portal for patient communications and clinical workflows.

Architecture

Built reusable React UI modules, headless APIs, CMS integration, and secure Azure-hosted frontends.

Business impact

Improved patient engagement and automated workflow.

Enterprise design system

Created a cross-team design system and component library for multiple SaaS product lines.

Architecture

Standardized tokens, accessible components, and shared design patterns.

Business impact

Enabled 35% faster new feature delivery and improved UI consistency.

Operations automation dashboard

Simplified release and monitoring workflows with a responsive admin experience.

Architecture

Combined real-time insights, role-based views, and safe deployment controls.

Business impact

Reduced incident review cycles by 40% and boosted team efficiency.

Secure Application Engineering

Implemented security best practices across enterprise web applications to safeguard sensitive data and meet compliance requirements.

Architecture

Integrated SAST, DAST, OSS dependency scanning, CSP, secure authentication flows, and vulnerability remediation into the CI/CD pipeline.

Business impact

Reduced security vulnerabilities, accelerated secure releases, and strengthened application resilience.

Web accessibility compliance

Led accessibility initiatives to build inclusive, WCAG compliant enterprise applications.

Architecture

Implemented semantic HTML, keyboard navigation, color contrast improvements with screen reader support.

Business impact

Achieved accessibility compliance, enhanced user experience for all users.

Key Achievements

Measurable impact across architecture, delivery, performance, and people.

ACEEngineering Excellence

Built a centralized UI component library with 50+ reusable UX components adopted across multiple teams.

Implemented a micro-frontend pattern and transformed a legacy application into 3 independent products.

Maintained web vitals targets: LCP under 2 seconds, INP under 100 ms, and CLS under 0.1.

Reduced development effort by 35% through reusable UI architecture and design patterns.

Led 40+ engineers through evaluations, 1:1s, mentoring, release planning, and career guidance.

Worked on HIPAA, GDPR, OSS, SAST, DAST, and penetration-testing compliance practices.

Integrated Web Analytics and SEO Optimization

Automated infrastructure alert monitoring, log analysis, code checklists, and unit-test preparation workflows.

Recipient of Accenture ACE Award, multiple Star of the Month awards, and TCS On-the-Spot Award.

Certifications

Verified technical foundations.

AWS Certified Developer - Associate
Oracle WebLogic 11g System Administration Certified
Technology Architect Associate Certification - Accenture
Education

Academic background.

B.Tech, Electronics & Communication Engineering - SASTRA University, Thanjavur, 2014
HSE, Computer Science - A.R.R Matriculation Higher Secondary School, Kumbakonam, 2010
Contact

Let's build reliable, elegant systems.

Available for engineering leadership, architecture & design-system strategy, enterprise SaaS delivery, and AI-assisted development initiatives.

marun.kumar93@gmail.com+91 81221 17713