Arun K

@arun_kumar_tech

Senior Software Engineer

India
English, Hindi
About me
I am a Senior Software Engineer and Technical Consultant with over 15 years of experience in Java, Spring Boot, Node.js, and Full Stack development. I specialize in building enterprise applications, cloud migrations, and DevOps automation using AWS and Docker. Additionally, I have mentored over 20,000 professionals, bridging the gap between complex technical concepts and real-world production practices.... Read more

Skills

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arun_kumar_tech
Arun K
Offline • 
Average response time: 1 hour

See my services

Bug Fixes
I will debug and fix backend API, java, spring boot, nodejs issues
From$5 / projectMore details
DevOps Consulting
I will diagnose why your application works locally but fails in production
From$5 / projectMore details

Portfolio

Work experience

Brain_Mentors Pvt Ltd

Development Lead / Technical SME

Brain Mentors Pvt Ltd • Full-time

Jan 2024 - Aug 2026 • 2 yrs 7 mos

- Provided technical leadership through architecture discussions, code reviews, mentoring, implementation guidance, team coordination, and engineering enablement. - Worked across software development, technical consulting, cloud, DevOps, deployment, platform modernization, and technical training. - Designed and delivered practical training and hands-on solutions covering Java, JavaScript/TypeScript, backend and full-stack development, microservices, cloud, DevOps, testing, and databases. - Developed REST APIs and backend services using Java/Spring Boot and Node.js/Express/TypeScript, including authentication, database integration, validation, error handling, testing, and API integration. - Worked with Docker, Docker Compose, Nginx, AWS, Jenkins, and GitHub Actions for application environments, CI/CD, deployment, and troubleshooting. - Provided debugging support, production troubleshooting, code reviews, architecture guidance, mentoring, and implementation support. - Participated in AWS-to-Hetzner cloud migration and deployment modernization activities, including infrastructure and application deployment considerations.

IIHT_Ltd

Technical Consultant & SME

IIHT Ltd • Full-time

Sep 2018 - Jan 2024 • 5 yrs 4 mos

- Delivered consulting, engineering enablement and practical technical training across Java, JavaScript/TypeScript, Node.js, full-stack development, REST APIs, databases, cloud, DevOps and software testing. - Supported developers and engineering teams with application development, backend and API development, debugging, testing, integrations, architecture discussions and technical problem solving. - Conducted technical evaluations, code reviews, implementation reviews and technology adoption activities to support engineering teams and development initiatives. - Created and adapted technical learning materials, coding exercises, practical labs and assessments based on project and learner requirements.

Self_Employed

Technical Trainer

Self Employed • Freelance

Aug 2014 - Oct 2018 • 4 yrs 2 mos

- Delivered implementation-focused technical training and consulting across Java, JavaScript, Node.js, Express.js, MEAN/MERN, Angular, REST APIs, databases, software testing and deployment. - Conducted hands-on programming, application development, debugging and troubleshooting sessions for freshers, developers and working professionals. - Designed and delivered technical course content, coding exercises, practical assignments, projects, assessments and hands-on labs based on learner and project requirements.