Oyindrila Bhattacharjee
Principal Consultant @Abjayon Inc
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WORK HISTORY
Principal Consultant @Abjayon Inc
Mar 2023 – PresentPrincipal ConsultantAbjayon, KolkataKey Projects & Responsibilities:C2M Transition for Water Utility – Kingdom of Saudi ArabiaObjective: Support transition of legacy Billing and MDM applications to the C2M platform for over 2.2 million meters.Responsibilities:Led middleware integration design using OSB, SOA, and APIGEE to ensure uninterrupted service continuity.Executed service cloning, transformation updates, performance testing, and end-to-end validation.Managed integration impact assessments and optimization for scalable, future-proof architecture.Smart Meter Roll-out – Jammu & KashmirObjective: Integration of HES and Oracle Utilities MDMS for smart meters.Responsibilities:Designed and implemented SOA-based APIs to support one-way and two-way smart meter communication.Integrated Head End System (HES), Meter Data Management System (MDMS), and Billing System for seamless data flow.Led requirement gathering, solution design, and stakeholder alignment.RDSS Smart Metering – Multi-State Roll-out (Kashmir, Ranchi, Tripura)Objective: Drive digital transformation through large-scale smart meter integration under India’s RDSS scheme.Responsibilities:Delivered comprehensive integration design and development for MDMS, HES, and C2M platforms.Built and managed services for Master Data Sync, Billing Determinants, Consumer Onboarding, Authentication, and Portal Integrations using SOA/OSB.Orchestrated dependencies across multiple systems (C2M, HES, Field Gateway, JIO APIs), ensuring complete SIT and UAT coverage.Other Notable Engagements-Utility modernization projects for Bangladesh-based DISCOMs-Implementation support for REC, LNG Metering, DT Metering, and SPLIT configurations-Collaborated across multi-vendor ecosystems for seamless rollout, testing, and post-go-live support.
EDUCATION
Birla Institute of Technology and Science, Pilani
Master of Technology - MTech
Kendriya Vidyalaya
Science
Techno India Institute of Technology
BCA, Computer Science
SKILLS
ABOUT OYINDRILA BHATTACHARJEE
As a Middleware Principal Consultant with 12+years of experience, I specialize in designing and delivering enterprise integration solutions that connect complex systems and drive real business outcomes. My expertise centers around Oracle Service Bus (OSB), Service-Oriented Architecture (SOA), and enterprise API management, with a strong focus on the utilities, telecom, banking, and insurance sectors.In my current role, I lead middleware initiatives that enable seamless system communication and long-term scalability. From greenfield implementations to large-scale upgrade projects, I’ve successfully delivered solutions tailored to meet evolving business and technology needs. One of the key highlights of my career has been leading multiple transformation programs—including the Oracle 11g to 12c upgrade and a major C2M (Customer to Meter) upgrade initiative—where I’ve played both technical and strategic roles.My professional journey has allowed me to wear many hats—from Techno-Functional Lead to Middleware Service Designer. I’ve been deeply involved in every stage of the solution lifecycle: requirement gathering, stakeholder engagement, solution architecture, API design, development, performance tuning, and go-live planning. I bring a balance of technical depth and business understanding, which helps in aligning IT solutions with organizational goals.I also bring experience in greenfield projects, where I’ve designed integration landscapes from the ground up—ensuring they’re secure, scalable, and future-ready. These projects are especially rewarding as they provide the opportunity to create optimized solutions without legacy constraints.Beyond delivery, I’ve contributed to pre-sales engagements, helping clients envision integration roadmaps, estimate efforts, and define high-level architectures. My ability to communicate effectively with both business and technical stakeholders has been key to building trust and delivering successful outcomes.What drives me is the opportunity to solve complex problems, simplify the integration landscape, and contribute to an organization’s digital transformation journey. I believe in continuous learning, collaboration, and always striving for excellence.
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