Looking for a job

ranjan sen

@ranjansen

Principal Engineer at Oracle IDC designing OCI distributed systems and improving workload performance, reliability, and scalability.

India

Message

What I'm looking for

I’m targeting Staff/Principal-level individual-contributor roles focused on distributed systems, backend/platform engineering, data infrastructure, cloud-native architecture, and enterprise AI/GenAI platforms. I prefer hands-on technical leadership, architecture, system design, performance, reliability, and engineering mentorship over people management.

At Oracle IDC, I design and deliver cloud-native solutions for Oracle products within OCI, from architecture and implementation through production support. I focus on distributed-system reliability, scalability, and performance.

I improved OCI workload efficiency through algorithm and performance optimization, and contributed to data-platform and observability initiatives involving Kubernetes/OKE, Kafka, and Spark-based workloads.

At EPAM Systems, I led a centralized Data Hub initiative using Databricks, Apache Spark, and Delta Lake. I designed end-to-end ETL pipelines and established data-quality and governance practices for the platform.

At Cimpress Technology, I designed cloud-native microservices for a mass-customization platform supporting high-volume order processing. I also developed scalability and fault-tolerance mechanisms for peak-load transactions.

Experience

Work history, roles, and key accomplishments

Current

Principal Member of Technical Staff

Current

Oracle

Mar 2021 - Present (5 years 7 months)

Designs and delivers scalable cloud-native solutions for Oracle products within OCI, focusing on high availability, fault tolerance, and performance. Provides technical leadership and drives engineering practices across cross-functional Agile teams.

Java Microservices Distributed Systems Kubernetes OCI Kafka Apache Spark CI CD System Design Performance Engineering

Lead Software Engineer

EPAM Systems

Nov 2020 - Mar 2021 (4 months)

Led a centralized Data Hub initiative using Databricks, Apache Spark, and Delta Lake, designing end-to-end ETL pipelines and defining data-quality and governance practices.

Databricks Apache Spark Delta Lake ETL Data Quality Data Governance Data Infrastructure

Lead Software Engineer

Cimpress Technology

Jan 2019 - Oct 2020 (1 year 9 months)

Designed and developed scalable cloud-native microservices for a mass-customization platform, building scalability and fault-tolerance mechanisms for high-volume order processing.

Microservices Cloud Native Java Spring Boot Scalability Fault Tolerance Agile

Technical Lead

Happiest Minds Technologies

Feb 2018 - Dec 2018 (10 months)

Translated complex business requirements into technical specifications and solution designs, developed proof-of-concepts, and coordinated testing and implementation across cross-functional teams.

Solution Design Technical Specifications Proof of Concept Cross functional Coordination Testing

Senior Solution Integrator

Ericsson

Feb 2018 - Dec 2018 (10 months)

Designed integration blueprints and executed system testing for customer implementations, planning phased deployments to minimize disruption and managing end-to-end rollout activities.

System Integration Testing Deployment Stakeholder Coordination

Information Technology Specialist

IBM

Aug 2010 - Oct 2014 (4 years 2 months)

Designed, developed, tested, deployed, and maintained enterprise software solutions across the full SDLC, working directly with US and Australian clients to deliver solutions aligned with business requirements.

Java SDLC Requirements Analysis Software Development Client Engagement