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Sumit Kumar

@sumitkumar33

Senior Customer Success Manager driving churn reduction, retention, and ARR growth across B2B SaaS partnerships.

India
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What I'm looking for

I’m looking for a B2B SaaS role where I can own customer lifecycle, improve retention and NPS using VoC and health monitoring, and lead cross-functional teams to expand accounts while ensuring strong SLA adherence.

I’m a results-driven Customer Success Manager with 11+ years of experience across B2B SaaS, EdTech, and operations, focused on delivering measurable outcomes from onboarding through renewal. I’ve driven churn reduction and sustained 95% client retention by building disciplined customer lifecycle management, customer health monitoring, and Voice of Customer (VoC) feedback loops.

I lead cross-functional execution—often with 50+ team members—to strengthen account expansion through renewals, upsell & cross-sell, and Quarterly Business Reviews (QBRs). With hands-on expertise in Salesforce CRM (and Microsoft Dynamics CRM), plus data-driven success planning (including Generative AI tools), I help teams improve NPS and accelerate ARR growth while ensuring consistent SLA adherence.

Experience

Work history, roles, and key accomplishments

NL

Senior Customer Success Manager

NetCom Learning

Jul 2023 - Mar 2025 (1 year 8 months)

Streamlined customer service implementation in collaboration with Product and Engineering, reducing onboarding turnaround time by 15% for enterprise accounts. Drove account expansion through upsell/cross-sell, maintained 100% SLA adherence for high-value partnerships, and ran QBRs to improve engagement and retention.

SI

Customer Success Manager

Simplilearn

Mar 2022 - Jul 2023 (1 year 4 months)

Owned end-to-end customer lifecycle for key accounts, achieving 95% client retention and driving a 12% increase in renewal revenue through proactive success planning. Improved partner onboarding-to-renewal turnaround time by 20%, boosted NPS via milestone tracking, and used product/usage analytics to identify upsell opportunities and support ARR growth.

TS

Customer Success & Sales Manager

Treenet IT Business Solutions

Feb 2021 - Feb 2022 (1 year)

Optimized remote service workflows to improve turnaround times by 20% and ensured 100% operational compliance across distributed teams. Built automated tracking to eliminate bottlenecks, supported 100% SLA adherence, and improved productivity by 15% using root cause analysis and quality audits.

OL

Zonal Business Manager

OYO Life

Mar 2019 - Jan 2021 (1 year 10 months)

Led regional co-living portfolio operations with a 50+ member cross-functional team, driving a 15% increase in occupancy and supporting zonal revenue growth using Salesforce-driven pipeline optimization. Improved resident retention by raising NPS by 20% through quality audits and RCA, and built MIS dashboards from Salesforce CRM data to increase lead-to-conversion efficiency by 12% while streamlin

Education

Degrees, certifications, and relevant coursework

Swami Vivekananda Subharti University logoSU

Swami Vivekananda Subharti University

Master of Business Administration (MBA), Business Administration

Earned a Master of Business Administration (MBA) from Swami Vivekananda Subharti University.

University of Allahabad logoUA

University of Allahabad

Bachelor of Commerce (B.Com), Commerce

Earned a Bachelor of Commerce (B.Com) from the University of Allahabad.

Tech stack

Software and tools used professionally

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