Sachin Nandal
Member of Technical Staff @ Oracle | Ex-Highradius | Full Stack Developer
- Role
- Member of Technical Staff at Oracle
- Location
- Hyderabad, TG, IN
- LinkedIn followers
- 500 followers
About Sachin Nandal
Software Engineer with 4+ years of experience designing and delivering scalable, high-availability backend systems across FinTech and Telecom domains. Currently Member of Technical Staff at Oracle, owning critical platform components with a strong focus on system reliability, zero-downtime deployments, and performance optimization.At Oracle, I design and implement runtime hot-deployment architectures for Java/Groovy/Drools code, enabling configuration and logic refresh without service interruption. I actively drive performance engineering initiatives, including JVM tuning, heap and thread dump analysis, and CPU/memory profiling to resolve memory leaks, stuck threads, and bottlenecks. I also led the migration of legacy JUnit 3 test suites to JUnit 5 on Java 21, addressing javax–jakarta compatibility and ensuring high test stability for enterprise releases.Previously at HighRadius, I built and scaled distributed payment systems processing 1M+ weekly transactions, delivering low-latency REST APIs, asynchronous messaging with Amazon SQS, and real-time dashboards. I implemented Direct Debit systems, multi-currency payment workflows, Spring Batch automation, and global checkout experiences supporting 15+ languages. My contributions enabled international market expansion, improved customer retention, reduced processing costs by 15%, and lowered checkout abandonment by 20%.I bring strong ownership, production mindset, and experience across system design, backend development, cloud platforms, and CI/CD pipelines.Core Skills:Java | Spring Boot | RESTful APIs | Distributed Systems | Microservices | Performance Engineering | JVM | JUnit 5 | Hibernate | JPA | React | AWS | OCI | Amazon SQS | SQL | CI/CD | Jenkins | Payments | FinTech
Experience
Member of Technical Staff
Apr 2025 — Present · Hyderabad, IN
Building Unified Inventory & Network Integrity at Oracle• Developed a zero-downtime deployment solution, removing dependencies on shared file systems. • Conducted in-depth performance testing, leading to the identification of critical performance bottlenecks. • Migrated legacy test suites to JUnit 5, achieving a high test success rate and compliance for UIM 8.0.
Education
CHANDIGARH UNIVERSITY
Bachelor of Engineering - BE
2018 — 2022
CHANDIGARH UNIVERSITY
Bachelor's degree
2018 — 2022
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