LAXMI LANKA
Aubrey
Summary
Senior Software Engineer with over 5 years of experience in developing cloud-native retail platforms using Node.js and modern JavaScript. Proven track record in managing real-time promotions and POS systems, processing millions of transactions daily with high accuracy. Expertise in AWS serverless architectures, microservices, REST APIs, NoSQL data modeling, and Redis caching, achieving over 80% test coverage in system designs. Strong coding and project management skills, consistently delivering scalable solutions within Agile and Scrum environments.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Software Engineer II
7Eleven
Irving
05.2023 - Current
- Developed event-driven workflows utilizing AWS Lambda and DocumentDB Change Streams for processing real-time promotion updates.
- Constructed secure Kafka producer services with SSL/SASL, retries, and connection pooling for dependable promotion distribution.
- Implemented rule-based validation and data transformation layers to enforce channel-specific business rules and standardize promotion data models.
- Designed scalable batch and streaming pipelines using SQS-triggered Lambdas and Azure Blob Storage for efficient historical data exports.
- Enhanced system reliability and performance through DLQs, retries, CloudWatch monitoring, and New Relic tracing, achieving approximately 30% faster propagation.
- Utilized Apache Kafka to support event-driven microservices, improving real-time processing capabilities.
- Deployed applications on server machines with AWS or Azure.
- Optimized system performance by integrating Redis caching, resulting in a 30% reduction in database hits.
Software Engineer
7Eleven
Irving
08.2022 - 05.2023
- Operated in Agile/SCRUM environment utilizing JIRA and Confluence for sprint planning and documentation.
- Developed OAuth2 and JWT-secured RESTful microservices, reducing unauthorized access attempts by 60% using Node.js, Fastify, and Express.
- Implemented request validation and error handling with Joi and AJV, ensuring data integrity across API endpoints.
- Engineered full-stack solutions for financial services using Node.js, React.js, and MySQL, enhancing application load time by 40%.
- Designed optimized MongoDB/DocumentDB schemas with indexing; utilized Redis caching for high-performance lookups.
- Constructed serverless, event-driven workflows with AWS Lambda, SQS, SNS, achieving over 80% test coverage and CI/CD pipelines.
- Architected microservices on AWS (Lambda, EC2, RDS) with CI/CD pipelines via Jenkins and Docker, shortening release cycles by 35%.
- Collaborated with cross-functional teams to improve user experience and system efficiency.
Software Engineer
7Eleven
Irving
05.2020 - 08.2022
- Engineered AWS Lambda consumers for Kinesis streams to process real-time promotions and transform data into POS-specific formats.
- Implemented DocumentDB Change Streams and SNS publishing with retries to synchronize promotion updates across distributed POS systems.
- Developed bulk processing pipelines utilizing S3 and SQS, enabling Lambda-to-Lambda batch synchronization for large-scale data loads.
- Designed Redis cache refresh handlers to ensure low-latency promotion updates while maintaining full audit history.
- Ensured system reliability through idempotent processing, dead-letter queues, and secure secrets management.
- Collaborated with UI/UX designers to improve software usability and user experience.
Education
Master of Science - Management Information Systems
University of Houston Clear Lake
Houston, TX12.2019
Bachelor of Science - Computer Science Engineering
GNITS
Hyderabad, India05.2017
Skills
- JavaScript (ES6)
- Nodejs
- TypeScript
- Python
- Expressjs
- Fastify
- Serverless Framework
- React JS
- Angular
- AWS
- MongoDB
- Amazon DocumentDB
- DynamoDB
- Redis
- Kafka
- OAuth2
- JWT
- IAM
- KMS
- Secrets Manager
- SSM Parameter Store
- Jest
- New Relic APM
- CloudWatch
- Git
- Docker
- CI/CD (GitLab)
- Swagger/OpenAPI
- Apache Kafka
- UI/UX
- Technical requirements
- Database management
Certification
- AWS Certified Cloud Practitioner, 01/23
- AWS Certified Developer – Associate (DVA-C02), 01/24
Timeline
Software Engineer II
7Eleven
05.2023 - Current
Software Engineer
7Eleven
08.2022 - 05.2023
Software Engineer
7Eleven
05.2020 - 08.2022
Master of Science - Management Information Systems
University of Houston Clear Lake
Bachelor of Science - Computer Science Engineering
GNITS