Sandeep Kumar Rayala
Bengaluru
Summary
Java Software Engineer with proven track record in designing and implementing scalable software solutions across Banking,Telecom, Saas base e-commerce , ERP modules in EDtech, and Financial services. Expertise in Java, Spring Boot, Apache Kafka, Mysql ,PostgreSQL, Elasticsearch and Mongo Db with a strong emphasis on microservices architecture. Successfully transitioned legacy systems to modern frameworks, enhancing performance and integration. Proficient in Agile methodologies and version control systems, driving efficient software development lifecycles.
Overview
6
6
years of professional experience
Work History
Senior Software Engineer
Alberstsons Companies of India
Bengaluru
06.2026 - Current
- Contributed to the Published Item Golden Record and Enrichment Gateway initiatives, working across item ingestion, enrichment, reconciliation, and publishing workflows to support reliable and consistent enterprise item data.
- Single handedly Designed and developed Enterprise Merchandising Item R&D initiatives, contributing to R&D and POC development for an Item Orchestration Service, integrating three enterprise systems into an MVP that was successfully demonstrated and approved by stakeholders.
- Developed and supported Databricks-based data processing jobs for item-related datasets, using PySpark and Spark SQL.
- Participated in Disaster Recovery (DR) activities, supporting execution, validation, troubleshooting, and operational handoffs to ensure successful DR readiness.
- Mentored junior software engineers on ADB, Knowledge transfer
- Supported weekend handoffs and critical activities when required, ensuring continuity and effective knowledge transfer across the team.
- Technologies: Java 17, Kafka, MongoDB, Databricks, Apache Spark, Spark SQL, GitHub Copilot, and Enterprise Claude
Java Consultant
Deloitte USI
10.2024 - 03.2026
- Re-engineered the payment simulation module by migrating from legacy Spring to Spring Boot 3.x, converting deployment from WAR to executable JAR; this increased developer velocity by 30%, integrated the simulator with the Moneris application, mentored 2–3 engineers during migration, conducted code reviews, and ensured adherence to payment system standards.
- Supported postal financial services observability platforms, managing over 1 TB of log data using Logstash ingestion pipelines, log, and metrics ELK for monitoring.
- Used Spring Boot, Spring Security, batch custom validation, Spring filters for authorisation, and Kafka-based buffering for log ingestion within a distributed ELK stack, improving fault tolerance, back-pressure handling, and system reliability.
- Knowledge of Spring AI, with experience in some proof of concept and Copilot utilisation.
Software Engineer
Phasezero.ai
Bengaluru
07.2023 - 09.2024
- Worked in an R&D team on a scalable multi-tenant e-commerce SaaS platform, enhancing PAT-based tenant onboarding, fixing over 90 production issues, and implementing Apache POI streaming for memory issues, thereby reducing manual SQL intervention by 80%, and accelerating tenant onboarding timelines by 90%.
- Developed admin, auditing, and activity history modules using Hibernate Envers Validity Audit Strategy to support auditing across complex user functionality.
- Built an asynchronous, high-throughput coupon generation and management system for millions of codes using Spring Batch, storing transactional data in PostgreSQL, ensuring fast and reliable processing.
- Migrated five application modules (7,000+ LOC), including integration of Elasticsearch-based global search, gaining deep expertise in Elasticsearch 8.x, optimised queries, Apache Camel integrations, and reduced system overhead.
- Designed query-driven data models with optimised partition keys and clustering columns to ensure efficient read/write performance.
- Worked on database design and entity relationship diagrams (ERDs); designed RESTful APIs following SOLID principles, and created API documentation using Swagger.
Java Developer
Navneet Top Tech
Bengaluru
10.2022 - 05.2023
- Designed and developed an Admission Management System end-to-end, integrating Template Management, and multiple supporting systems.
- Built an exam paper builder using a tree data structure to support complex hierarchies, including sections, subsections, MCQs, and question papers.
- Integrated Razorpay payment SDK for applicant and exam fee processing, and Confluent Kafka for reliable retrieval and propagation of applicant data across modules.
- Enabled asynchronous Kafka-based processing for bulk student and staff ID card generation across 100+ schools, supporting multiple OCR, PDF, and QR code formats.
- Developed dynamic JSONB queries and forms for multi-tenant B2B applications, improving data organisation and client configurability.
- Contributed to entity and database design, participated in business workshops and feature discussions, and maintained approximately 80% code quality compliance using SonarQube, SonarLint, and best practices.
Software Development Engineer
Lumen technologies (CenturyLink)
Bengaluru
12.2021 - 10.2022
Software Engineer
Mphasis (First republic bank)
Bangalore
10.2020 - 12.2021
Education
Btech - Mechanical Engineering
Sanketika Vidya Parishad of Engineering
05.2019
Skills
- Java
- Springboot
- Apache Kafka
- PostgreSQL
- ETL (Databricks)
- Multithreading/concurrency
- Elasticsearch
- Development life cycle (SDLC)
- Spring Security
- Hibernate
- MySQL
- Mongo
- Eastic search Logstash Kibana
- Observability
- JPA
- GitHub, Bitbucket
- Programming
- Java Microservices
- Maven
- Gradle
- RESTful APIs
- Database design
- Agile
- Software development
- Application design
- Code reviews
- Microservices Architecture
- Oops
- API integration
- Java programming
- Asynchronous processing
- Kafka integration
- Code reviewing
- API design
- Agile methodologies
- Technical documentation
- Problem solving
- Technical mentoring
- Azure cloud
- Linux
- Spring framework
- Spring AI
- Sonar Lint and SonarQube
Awards
Summit Individual Award, Mphasis, 2021-08-01
Applause award for mentoring and leading the team Deloitte USI 2025-12-09
Personal Information
Websites, Portfolios and Profiles
- https://github.com/SandeepKumarRayala
- https://www.linkedin.com/in/sandeep-kumar-rayala-63521016a/
Timeline
Senior Software Engineer
Alberstsons Companies of India
06.2026 - Current
Java Consultant
Deloitte USI
10.2024 - 03.2026
Software Engineer
Phasezero.ai
07.2023 - 09.2024
Java Developer
Navneet Top Tech
10.2022 - 05.2023
Software Development Engineer
Lumen technologies (CenturyLink)
12.2021 - 10.2022
Software Engineer
Mphasis (First republic bank)
10.2020 - 12.2021
Btech - Mechanical Engineering
Sanketika Vidya Parishad of Engineering