NIVIN S JOHN
Bengaluru
Summary
Staff / Technical Lead with nearly 10 years of experience in designing and modernizing cloud-native platforms for regulated enterprises. Expertise in Java, Spring Boot, and AWS architectures, with a focus on building secure, event-driven microservices. Proven track record in architecting shared platforms and AI-enabled services, including integration of LLMs into production workflows. Skilled in driving engineering standards and technical direction while maintaining hands-on involvement in coding and CI/CD processes.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Technical Lead
Oracle India Pvt. Ltd.
Bengaluru
08.2021 - Current
- Architected a secure, gateway-centric integration platform using Spring Cloud Gateway, JWT-based authentication, tunneling, Kafka-based asynchronous workflows, and standardized service contracts, reducing CRUD application delivery effort by ~60% and accelerating onboarding across teams.
- Designed and delivered event-driven, cloud-native microservices using Kafka, Java 17, and Spring Boot, applying AWS-ready, infra-aware design patterns compatible with EC2, API Gateway, IAM, RDS, S3, and Lambda.
- Led the Gen2 → Gen3 upgrade of Oracle Integration Cloud adapters, introducing multi-auth support, event-driven integrations, and extensible connector patterns, while migrating customers with zero downtime.
- Modernised business-critical microservices (Java 7 → 17, Spring Security with OAuth2/SAML2), improving runtime performance by ~20% and reducing security vulnerabilities by ~35% in a regulated enterprise environment.
- Designed and delivered event-driven, cloud-native microservices using Kafka for messaging, Java 17, and Spring Boot, applying AWS-ready, infra-aware design patterns compatible with EC2, API Gateway, IAM, RDS, S3, and Lambda.
- Owned production reliability and operational excellence, embedding observability and traceability by design (Prometheus, Grafana, ELK), conducting performance validation with JMeter, and contributing to incident triage, root cause analysis, and permanent fixes.
- Provided technical leadership and mentorship, leading engineers through platform upgrades, setting coding and security standards, and mentoring an intern who successfully secured a PPO.
- Delivered GenAI and agentic capabilities into enterprise workflows, including a hackathon-winning Reply Box Agent, a released Intelligent Campaign Designer, and AI-driven automation and analytics services, demonstrating safe, production-oriented LLM integration.
Senior Software Engineer
MDSap Tech SA
Abu Dhabi
01.2019 - 07.2021
- Built and maintained omni-channel banking and healthcare platforms using Spring Boot, SAPUI5/OpenUI5, OData, Angular, Oracle DB, and Sybase, supporting secure, high-traffic enterprise workloads.
- Designed and implemented RESTful APIs for financial systems, incorporating security filters, authentication, authorization, and request validation, aligned with audit and compliance requirements.
- Developed responsive, high-performance SPAs using OpenUI5 and Angular (Material), improving page load times by ~25% and enhancing user experience across channels.
- Contributed to event-driven workflows by integrating asynchronous processing patterns (Kafka-backed messaging in downstream systems), improving decoupling and resilience of financial transactions.
- Optimised SQL queries and data access patterns, and supported Sybase → Oracle migrations, improving system stability and daily operational efficiency in production environments.
- Collaborated with cloud and platform teams on cloud-readiness initiatives, applying AWS-compatible design principles (stateless services, externalised config, scalable APIs) in preparation for future cloud deployments.
- Built an Angular + XSJS portal for the SAP HANA team, reducing manual operational processes by ~20% and improving internal visibility.
Software Engineer → Senior Software Engineer
IBS Software
Trivandrum
05.2015 - 12.2018
- Enhanced airline seat management algorithms → 40% efficiency boost.
- Automated flight data ingestion with Spring Batch pipelines.
- Built productivity tools: I-Build (ClearCase automation), Roster Mgmt tool, saving hours per release.
- Maintained production configs for multiple airline clients using SVN & ClearCase.
- Mentored juniors; represented IBS at Vistara Aviation Hackathon Finals (2017).
Education
B.Tech - Computer Science & Engineering
Cochin University of Science & Technology
01.2015
Skills
- Java (8–17), Spring Boot, Microservices
- REST, GraphQL
- Reactive Programming (Reactor, CompletableFuture)
- Multithreading, Concurrency
- Caching: Redis, Hazelcast
- Python (data processing, scripting, analysis)
- AWS: EC2, S3, RDS, IAM, API Gateway, Lambda
- OCI
- Docker, Kubernetes, Jenkins
- Helm (familiar)
- CI/CD pipelines, automated validation
- Kafka
- Distributed Systems, Scalability
- Event-Driven Architecture
- API Gateway patterns
- Fault Tolerance (Resilience4j, Hystrix)
- Rate Limiting, High Availability
- JWT, OAuth2, OIDC, SAML2
- API Security, Encryption
- Secure-by-design systems
- Oracle, PostgreSQL, Sybase
- SAPUI5 / OpenUI5
- Angular
- JavaScript
- JSP, jQuery
- JUnit, Mockito
- Integration & Contract Testing
- Performance Testing: JMeter
- Observability: Prometheus, Grafana, ELK/EFK, Kibana, JMX/Jolokia
- LLM Integrations
- Autogen
- LLM Services
- Prompt Engineering
- Mentoring & Coaching
- Team Leadership (2 engineers)
- Code Reviews
- Feature & Platform Ownership
Self Projects
- AWS Deployment Projects, Hosted Spring Boot apps on EC2, RDS, S3 with IAM, API Gateway, Lambda., Improved deployment knowledge.
- COVID-19 Case Tracker, Spring Boot + Thymeleaf + cron jobs for daily stats., Public awareness dashboard.
- Spring Cloud Microservices (POC), Config Server, Service Discovery, API Gateway with Resilience., Practiced distributed design patterns.
- GraphQL + Angular POC, Apollo client + schema-driven APIs., Learned GraphQL integration.
Certification
- AI Agents Associate - Oracle Agent Studio
- OCI Foundations Certified
- Oracle APEX Foundations
- SQL Beginner & Intermediate (TechGig)
AI Projects
- Reply Box Agent, Email orchestration with Autogen + Spring Boot; conversation-aware replies., 1st place, added to roadmap.
- Intelligent Campaign Designer, AI side-panel for scoring, prediction, content generation., Released to customers.
- Review Analyzer, Summarization + sentiment analysis of feedback → dashboards., Helped sales reduce churn risk.
- Marketing Automation Agents, Built 4 agents for campaign creation/event mgmt with Spring Boot + Python., Demoed to leadership, under productization.
Accomplishments
3× Spot Award Winner (Oracle, 2022-24) - Continuous innovation & technical excellence.
Timeline
Technical Lead
Oracle India Pvt. Ltd.
08.2021 - Current
Senior Software Engineer
MDSap Tech SA
01.2019 - 07.2021
Software Engineer → Senior Software Engineer
IBS Software
05.2015 - 12.2018
B.Tech - Computer Science & Engineering
Cochin University of Science & Technology