Sai Kumar Lakumarapu
Senior Software Engineer @Tech Mahindra
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WORK HISTORY
Senior Software Engineer @Tech Mahindra
ON, CA
Architected and modernized a mission-critical enterprise pricing platform used to evaluate, validate, and publish margin rules, promotions, and competitive pricing for thousands of U.S. retail stores.The platform powers high-volume pricing decisions through Spring Boot microservices, event-driven Kafka workflows, and resilient batch processing, ensuring accurate, timely, and reliable price execution at national scale.• Led modernization of core pricing and sign-post APIs by refactoring legacy logic, reducing technical debt, and enabling faster rollout of complex pricing capabilities• Delivered 40–60% API performance improvements by eliminating N+1 query patterns, redesigning inefficient SQL, and implementing intelligent caching strategies• Designed and implemented fault-tolerant, large-scale batch pipelines for pricing group execution, reducing nightly batch failures by 90%+• Built event-driven pricing workflows using Kafka, enabling scalable, asynchronous processing of competitive changes, execution-level updates, and downstream publishing events• Engineered resilient retry frameworks for Azure Blob–backed batch inputs, using exponential backoff, jitter, and transient-error filtering to prevent partial pricing failures• Strengthened production observability by introducing context-rich structured logging and performance monitoring, significantly improving incident diagnosis and recovery time• Acted as primary escalation owner for high-severity production incidents, performing deep root-cause analysis and implementing long-term fixes to prevent recurrence
EDUCATION
Lambton College
Postgraduate Degree, Cloud Computing for Big Data
Guru Nanak Institutions(GNI)
Bachelor of Technology - BTech, Computer Science
ABOUT SAI KUMAR LAKUMARAPU
Senior Backend Engineer with 6+ years of experience building scalable, high-performance microservices and enterprise platforms using Java, Spring Boot, Kafka, and cloud-native architectures. I specialize in modernizing legacy systems, improving API performance, and designing resilient batch and event-driven workflows that power large, business-critical operations.I have a strong track record of solving complex engineering challenges, eliminating performance bottlenecks, optimizing SQL queries, removing N+1 patterns, and implementing intelligent caching layers that improve system throughput and stability. I’ve engineered robust retry/backoff frameworks, refined distributed workflows, and redesigned APIs to ensure predictable execution under heavy load. My work has consistently resulted in zero-defect releases, faster processing times, and dramatically improved system reliability.My strengths include deep analytical thinking, production debugging, and the ability to translate business rules into clean, maintainable technical solutions. I collaborate closely with product, data, DevOps, and architecture teams to deliver high-impact features that support real-world business goals, especially in pricing, financial systems, and large-scale data processing.I am passionate about clean architecture, distributed system design, performance engineering, and building reliable platforms that scale. I continuously learn and upskill to stay aligned with modern engineering trends in cloud technologies, event-driven systems, and backend optimization.
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