Sasi Kumar
Arlington,TX
Summary
- Software Engineer with 6+ years of experience designing and implementing high-performance, scalable enterprise systems using Java, Spring Boot, and cloud-native architectures.
- Strong understanding of software design patterns and principles, with proven ability to write clean, maintainable, and reusable code for long-term system reliability.
- Hands-on experience with JSP, Servlets, EJB, JMS, AJAX, JDBC, Struts, and ORM frameworks, delivering robust and reliable enterprise-grade applications.
- Strong background in database management with MySQL, PostgreSQL, Oracle, and MongoDB, including schema design, query optimization, and advanced data modeling techniques.
- Solid experience in designing and optimizing RESTful APIs that support scalable, high-performing web and mobile applications, including performance tuning and load balancing.
- Expertise in implementing authentication and authorization using OAuth2, JWT, and role-based access controls, ensuring security and compliance for enterprise applications.
- Deep knowledge of AWS cloud services including EC2, S3, Lambda, RDS, and Kinesis, with hands-on experience in building cost-effective, scalable cloud solutions.
- Experience in real-time data processing pipelines using Kafka and event-driven architectures to enable high-throughput, fault-tolerant applications.
- Strong DevOps expertise with CI/CD pipelines (Jenkins, GitLab CI/CD), automated testing, and infrastructure as code using Terraform and Ansible.
- Proficient in containerization technologies including Docker and Kubernetes, ensuring portable, scalable, and resilient deployment environments.
- Skilled in monitoring and alerting systems with Prometheus, Grafana, and CloudWatch, enabling proactive issue detection and high system reliability.
- Collaborative team player experienced in Agile/Scrum methodologies, with excellent communication skills, continuous learning mindset, and experience mentoring junior engineers.
Overview
8
8
years of professional experience
Work History
Software Engineer
Ford
Arlington, Texas
01.2022 - Current
- Developed and maintained Java/Spring Boot microservices for Ford’s connected vehicle platform, enabling real-time telemetry processing and diagnostics.
- Implemented a Kafka-based event streaming architecture to process high-volume vehicle data with reliable message queuing and fault-tolerant consumers.
- Designed and delivered RESTful APIs for remote vehicle commands and diagnostics, seamlessly integrated with the FordPass mobile ecosystem.
- Built and optimized AWS infrastructure using EC2 auto-scaling groups, RDS PostgreSQL clusters, and S3-based data lakes for storing historical vehicle data.
- Created a RabbitMQ-based notification system for critical vehicle alerts, including maintenance warnings and recall notifications.
- Improved database performance through indexing, query optimization, and partitioning of large time-series datasets.
- Developed AWS Lambda functions for data transformation tasks and third-party service integrations.
- Established CI/CD pipelines using Jenkins and Terraform, enabling reliable, automated deployments across multiple environments.
- Led migration of legacy monoliths to containerized Kubernetes microservices, improving scalability and resiliency.
- Conducted code reviews and mentoring, ensuring adherence to best practices and improving team productivity.
- Partnered with product managers to translate business requirements into technical solutions.
- Implemented distributed tracing with Jaeger to monitor microservice communication and detect performance bottlenecks.
- Developed disaster recovery protocols with automated failover, ensuring high availability of critical vehicle systems.
Software Engineer
ABC Fitness
01.2018 - 12.2021
- Developed Spring Boot microservices powering the core gym management platform used by 500+ fitness locations nationwide.
- Implemented a QR code-based member check-in system using Python image processing, fully integrated with the mobile app to streamline customer entry.
- Designed and maintained PostgreSQL databases for membership, class schedules, and billing with high availability and failover support.
- Built automated payment workflows for recurring billing and failure recovery, reducing manual intervention and improving accuracy.
- Created a Redis caching layer to enhance performance of frequently accessed APIs for member profiles and schedules.
- Established JWT/OAuth2 security frameworks for customer-facing apps and staff portals to ensure secure role-based access.
- Developed a staff management portal with granular access controls tailored to different employee roles and permissions.
- Integrated Twilio SMS/email services to automate reminders, receipts, and customer communications, improving engagement.
- Led migration from monolithic architecture to microservices, significantly improving scalability and deployment speed.
- Optimized complex SQL queries for analytics on membership trends and facility usage, improving reporting performance.
- Leveraged AWS services (S3, Lambda) to enable serverless document storage and lightweight data processing.
- Implemented an automated testing framework (JUnit, Mockito) to strengthen code reliability and streamline CI/CD pipelines.
- Contributed to Agile development processes through sprint planning, daily standups, and retrospectives, ensuring iterative delivery.
- Integrated with third-party fitness tracking APIs to sync workout data into member profiles, enhancing customer experience.
- Built an automated reporting system for franchise owners, providing actionable insights on member retention and utilization.
Education
Master of Science - Computer Science
Campbellsville University
Campbellsville, KYSkills
- Programming Languages: Java, Python, SQL, JavaScript
- Frameworks & Libraries: Spring Boot, Spring Security, Hibernate, React, Angular
- Testing: JUnit, Mockito, TestNG, Selenium
- Cloud Platforms & Services: AWS (EC2, Lambda, RDS, S3, CloudFormation, CloudWatch, EKS), Terraform, Ansible
- Containerization & Orchestration: Docker, Kubernetes, Helm
- DevOps & CI/CD: Jenkins, GitLab CI/CD, GitHub Actions, Maven, Bitbucket, Git
- Databases: PostgreSQL, MySQL, Oracle, MongoDB, Cassandra, DynamoDB
- Messaging & Streaming: Apache Kafka, RabbitMQ, JMS, Apache Flink, Apache Spark
- API & Integration: RESTful APIs, Swagger/OpenAPI
- Security: OAuth2, JWT, SSL/TLS
- Monitoring & Logging: CloudWatch, ELK Stack, Prometheus, Grafana
- Agile & Collaboration: Scrum, Kanban, JIRA, Confluence
Timeline
Software Engineer
Ford
01.2022 - Current
Software Engineer
ABC Fitness
01.2018 - 12.2021
Master of Science - Computer Science
Campbellsville University