Aruna Karumajji
San Ramon,CA
Summary
Senior Full-Stack Software Engineer with over 15 years of experience in architecting and optimizing scalable web applications. Expertise in Ruby on Rails, RESTful APIs, GraphQL, and microservices architecture. Skilled in modern frontend frameworks including React and Angular, with a strong background in Redis, PostgreSQL, and cloud infrastructure. Demonstrated ability to lead agile teams and mentor developers, achieving performance improvements exceeding 40%.
Overview
20
20
years of professional experience
1
1
Certification
Work History
Lead Software Engineer
IZEA
12.2023 - 02.2025
- Led implementation of AI features using Stability AI and Open AI APIs, increasing user engagement by 35%
- Optimized Graph QL endpoints for Admin KPI Dashboard metrics
- Fine-tuned database performance by refactoring queries and implementing proper indexing
- Redesigned casting calls flow using PostgreSQL json columns and dry-schema validation
- Implemented real-time subscription analytics with Redis pub/sub for cross-country metrics
- Integrated Instagram Graph API for demographic analytics using Tailwind CSS
- Resolved complex issues in Stripe payment processing and Apple subscription systems
- Led daily scrums and sprint ceremonies for cross-functional teams of 8+ members
- Tech Stack: Rails 7, Ruby 3.4, PostgreSQL, RESTful APIs, Open AI, Redis
Technical Lead Staff Engineer
Zuberance Inc
02.2015 - 11.2023
- Architected and developed word-of-mouth marketing platform serving thousands of users
- Designed and implemented high-performance RESTful APIs for user profile management, referral tracking, and analytics
- Led development of O Auth-based SSO integration and rewards management system using Tango and Shopify APIs
- Created scalable email management system using SendGrid templates with 99.8% delivery rate
- Enhanced authentication flow for mobile applications using JWT and O Auth 2.0
- Designed and implemented video processing pipeline with redis based caching
- Developed interactive dashboards for advocacy, review, and referral metrics using React
- Optimized database queries achieving 40% performance improvement in high-traffic scenarios
- Implemented Redis-based caching layer that reduced API response times by 65%
- Implemented profile photo editing with slim javascript and social media integration
- Managed team of 4 developers, conducting code reviews and implementing best practices
- Tech Stack: Rails 6, Ruby 3.0, Groovy, Grails 2.5, Angular 1.5.9, PostgreSQL, Redis, RESTful APIs
Senior Software Engineer - SAP
Apple
05.2012 - 12.2012
- Developed Web Dynamic Programming applications for rate table processing
- Implemented required code modifications for iTunes EHP5 upgrade project
- Tech Stack: SAP R/3, ABAP
Senior Software Engineer - SAP
Infinera
02.2012 - 04.2012
- Implemented data migration solutions for vendor master records
- Developed and optimized SAP reports for improved performance
- Created maintenance views for custom tables
- Tech Stack: SAP ECC 6.0, ABAP
Senior Software Engineer - SAP
Columbia Sportswear
11.2011 - 01.2012
- Enhanced user exits for GL line item processing
- Extended IDOC implementations for material management
- Developed scalable applications using agile methodologies for timely project delivery.
- Tech Stack: SAP R/3 ECC 6.0, ABAP, AFS
SAP Development
Maventic Innovate Solutions
01.2008 - 01.2009
- Developed custom reports for better data analysis, driving informed decision making.
- Leveraged expertise in ABAP programming language to develop custom code as needed for specific project requirements.
SAP Technical Development
SIEMENS
01.2007 - 01.2008
- Provided SAP certification and mentorship for trainees
- Enhanced user exits for FICO modules
SAP Development
InfyTree Software Solutions
01.2005 - 01.2006
Education
M.S. - Computer Science
California State University-East Bay
Hayward, CA06.2015
B.Tech -
JNT University
Skills
- Languages: Ruby, JavaScript, TypeScript, Python, Groovy, Java
- Frameworks: Ruby on Rails (5/6/7), React, Angular (15/20), Grails
- Frontend: HTML5, CSS3, JavaScript, Tailwind CSS, Bootstrap, SASS
- Backend: RESTful APIs, GraphQL, Microservices, OAuth
- Databases: PostgreSQL, MySQL, Redis, MongoDB
- Infrastructure: Docker, AWS, Jenkins, Hudson, New Relic, Bugsnag, Sentry, Airbrake
- Tools: Git, JIRA, Confluence, Sidekiq, RSpec
- Methodologies: Agile/Scrum, TDD, CI/CD, Microservices Architecture
Certification
Project Management Foundations from PMI, CSM, SAP Certified Development Associate
Timeline
Lead Software Engineer
IZEA
12.2023 - 02.2025
Technical Lead Staff Engineer
Zuberance Inc
02.2015 - 11.2023
Senior Software Engineer - SAP
Apple
05.2012 - 12.2012
Senior Software Engineer - SAP
Infinera
02.2012 - 04.2012
Senior Software Engineer - SAP
Columbia Sportswear
11.2011 - 01.2012
SAP Development
Maventic Innovate Solutions
01.2008 - 01.2009
SAP Technical Development
SIEMENS
01.2007 - 01.2008
SAP Development
InfyTree Software Solutions
01.2005 - 01.2006
M.S. - Computer Science
California State University-East Bay
B.Tech -
JNT University
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