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Sanjay Singh Bhandari
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© 2026 Sanjay Singh Bhandari.

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    Achievements

    Factual, not adjectival.

    Each item below is tied to a specific role and system — see Case Studies for the full context behind any of these.

    I joined Opal BPM as a Senior Java Developer (second engineering hire) and progressed into Lead Java Developer over a 9-year, 7-month tenure.

    Opal BPM India Pvt Ltd, Sep 2015–Apr 2025.

    I architected the Enterprise Exchange Platform's 16-microservice trading system, running in production at 99.9% uptime with sub-100ms notification delivery.

    Enterprise Exchange Platform, Opal BPM India Pvt Ltd.

    I built an RFC 1.2.0-compliant Beckn protocol adapter supporting 5+ identity-verification providers at sub-50ms P95 API latency.

    Beckn Protocol Verification Adapter ("WRI Connector"), Opal BPM India Pvt Ltd.

    I led the standardization of OAuth2-based authentication and authorization across multiple client deployments of Opal's platform.

    OAuth2 Authentication Platform, Opal BPM India Pvt Ltd.

    I reduced mean time to resolution for production issues by 30% through direct ownership of triage.

    TeamLease Services Pvt. Ltd, Apr 2014–Aug 2015.

    During the last five years at Opal BPM, I provided technical leadership and mentoring to a team of 5–7 developers, establishing code-quality and system-design practices.

    Opal BPM India Pvt Ltd — technical leadership, last ~5 years of tenure.