Mangesh Patil

• Led requirement gathering and feasibility analysis, collaborating closely with Architects and Product Managers to define scalable solutions.
• Reviewed implementation plans to ensure adherence to engineering standards and best practices.
• Evaluated and provided feedback on test cases to ensure comprehensive test coverage and quality assurance.
• Oversaw release processes, proactively mitigated bugs, and ensured smooth deployment.
• Conducted performance tuning and job optimization to enhance system efficiency and reliability.
• Drove continuous process improvements to boost delivery productivity and reduce operational overhead.
• Managed and mentored a team of 5-7 data engineers, overseeing workload distribution, skill development, and performance reviews to ensure high team effectiveness.
• Coordinated cross-functional initiatives across departments, contributing to enhanced business operations and improved customer satisfaction.

• Served as a core member of the Technical Support Group (TSG), contributing to digital banking initiatives, including API banking solutions with integrated AI and ML capabilities.
• Managed the end-to-end lifecycle of multiple banking products, from inception through to successful market launch.
• Oversaw architecture reviews, infrastructure and capacity assessments, load testing, and code reviews to ensure high-quality and scalable delivery.
• Coordinated with InfoSec, audit, and compliance teams to secure necessary approvals and sign-offs for implemented solutions.
• Led vendor evaluation and management, ensuring timely and efficient delivery of new features and product enhancements.
• Actively engaged with diverse stakeholders, including consumers, middleware teams, and integration partners, to ensure seamless product interoperability.
• Directed and conducted System Integration Testing (SIT) and User Acceptance Testing (UAT) to validate that solutions met business requirements.
• Managed deployment activities, including production rollout and post-deployment validation to confirm operational readiness and stability.
• Negotiated contractual agreements with vendors to secure favorable terms for the company while maintaining strong partnerships in the supply chain network.
• Ensured overall project success by tracking key performance indicators, identifying trends, and proactively addressing issues that could impact delivery timelines.

JBDL (Jio Big Data Lake), a central Big Data platform, enabled ingestion of diverse data streams into HDFS/Hive for advanced analytics and complex business logic execution to generate actionable insights and reports.

Key Responsibilities:

• Planned and executed release deployments, including prerequisite validations and coordination with the development team for seamless implementation.
• Monitored data ingestion pipelines, Kafka streaming, and analytics job performance, along with log analysis in the JBDL cluster.
• Configured and managed access control policies for HDFS, Hive, and YARN queues to ensure secure and efficient resource usage.
• Defined operational checkpoints and implemented alerting mechanisms to proactively manage platform health and job reliability.
• Analyzed data ingestion trends, identified anomalies or dips, and coordinated with source teams to resolve inconsistencies.
• Implemented data purging strategies based on business-defined retention policies for both Hive internal/external tables and HDFS storage.
• Analyzed and reported on key performance metrics to senior management.
• Analyzed data trends to identify potential bottlenecks in operations workflow, implementing strategies to mitigate risks accordingly.

• Contributed to the development and support of a cross-domain application primarily within the telecom domain, designed to serve global Law Enforcement Agencies (LEAs).
• The system is responsible for acquiring, processing, correlating, and analyzing data from diverse sources, including telecom service providers, banks (online, ATM, credit card transactions), and travel and hospitality sectors (rail, road, sea, hotels).
• Delivered actionable intelligence by integrating multi-source data to generate suspect profiling and activity insights, aiding criminal investigations and threat prevention on a global scale.
• Served as a role model for the team by demonstrating commitment to excellence, professionalism, and adherence to company values at all times.

Project: Data Clearing House (DCH) Application – Telecom Roaming Settlement

• Worked on the Data Clearing House (DCH) application, a flexible and robust solution aligned with GSMA specifications and guidelines.
• DCH acts as an intermediary platform for telecom operators, enabling the exchange of billing information related to GSMA-compliant international roaming services.
• Supported the accurate and standardized processing of roaming call records and billing data between operators, ensuring compliance with industry standards and smooth inter-operator settlements.

Project: VSNL (Videsh Sanchar Nigam Ltd) – Wholesale Billing for Inter-Operator Traffic

• Contributed to the wholesale billing operations for National and International Long-Distance (NLD/ILD) calls using the CSG Intec application.
• Performed Level 1 support activities, including monthly billing cycle management, monitoring of call detail record (CDR) rating, and ensuring system stability throughout the billing process.
• Managed file system housekeeping, monitored and optimized tablespace usage, and generated business-specific data extracts as per operational and reporting requirements.
• Ensured timely and accurate billing closure by proactively resolving issues and maintaining system performance.