Customer Success · Product Analytics · AI

Sourav
Karmakar.

Customer Success leader for analytics-led SaaS teams

I help product-led SaaS companies turn adoption data, executive alignment, and renewal strategy into measurable customer value.

Sourav Karmakar
8+ yearsSaaS customer success
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Experience
0+
Years in SaaS
customer success
Portfolio
$0M
ARR managed
at Heap
Expansion
0K+
Upsell revenue
generated in FY2025
Retention
0%
Net revenue retention
across portfolio

About me

Built for complex customers.
Fluent in technical products.

I started in AI chatbot automation — building user journeys, mapping intent, and helping enterprises deploy intelligent workflows on HCM platforms. That foundation gave me something rare in CS: a genuine technical instinct.

Today I manage a $3.5M ARR portfolio of 80+ mid-market and enterprise accounts at Heap by Contentsquare — helping product, data, and engineering teams turn behavioural analytics into business decisions. I run EBRs with CPOs and CTOs, build success plans, and make sure every renewal is earned, not assumed.

My north star: value before renewal. If your customer can't articulate why they need your product, no relationship will save them at renewal time.

Churn preventionExecutive relationshipsRenewal strategyProduct analyticsMEDDICQBRs / EBRsUpsell motionsHealth scoringAPI implementationChatbot automation
Current role
Customer Success Manager
Heap by Contentsquare · July 2023 – Present · Delhi NCR
Net revenue retention
87% NRR
Across $3.5M portfolio of 80+ accounts
Upsell performance
$140K+ in FY2025
>$35K quarterly upsell at Heap
Certification
Contentsquare Certified
January 2024

Experience

The journey.
The wins.

July 2023 — Present
Heap by Contentsquare
Customer Success Manager
Mid-Market & Enterprise · Analytics
$140K+upsell revenue generated in FY2025 alone
  • Maintained 87% NRR across a $3.5M portfolio of 80+ mid-market and enterprise accounts.
  • Conducted QBRs & success planning with CPO and CTO-level stakeholders at high-value accounts.
  • Partnered with AEs & PMs for cross-functional support on strategic accounts and expansion motions.
GainsightCatalystTableauMarketoSFDC
June 2022 — June 2023
Freshworks Inc.
Sr. Onboarding Specialist
Chatbot Implementation · UK & US
9/10average CSAT score across 50+ onboarded customers
  • Led chatbot project implementation for Freshchat with automation use-case mapping and API integrations.
  • Onboarded 50+ customers across UK & US regions in FY2022, delivering within SLA.
ZendeskFreshdeskKantataPostman
Oct 2019 — June 2022
Harmonize
Customer Success Manager
HR Technology · Time Tracking
78%renewal rate achieved for HR Technology product
  • Onboarded 40+ customers with an average time-to-value of just 3 weeks.
  • Led product onboarding & app training programs for the time tracking product suite.
StripeFreshdeskHubSpotMySQL
July 2017 — Oct 2019
Leena AI
Key Account Manager
Conversational AI · HCM
25%churn reduction through proactive EBRs & health cadences
  • Built user journeys for chatbot automation on HCM solutions — the root of my technical product instinct.
  • Served as product consultant for the unified CHRO dashboard, presenting to C-suite stakeholders.
HCM PlatformsChatbot DesignEBR frameworks

Toolkit

What I bring
to the table.

Core CSM
Retention & Renewal
Churn preventionHealth scoringMEDDICNRR / GRRVOC programs
Analytics
Product Intelligence
Heap AnalyticsTableauSQLBehavioural dataFunnel analysis
Stakeholder
Executive Engagement
QBRs / EBRsCPO / CTO relationsValue storytellingQBR frameworks
Growth
Expansion Revenue
Upsell motionsCross-sellROI framingExpansion ARR
Domain
AI & Automation
Conversational AIChatbot designFlow buildingJSON / REST APIs
Tools
Tech Stack
GainsightCatalystSFDCJIRAHubSpotMarketo

Social Proof

What colleagues
say about me.

"
🔗 LinkedIn Recommendation

He builds strategic partnerships, not just accounts.

Sourav is a powerhouse of product expertise and a natural collaborator who truly understands the bridge between technology and customer value. He has a unique knack for identifying product friction points before they impact the user experience, working cross-functionally with Product and Engineering teams to advocate for his clients and resolve issues proactively.

His mastery of the Heap ecosystem, combined with a deep commitment to team goals, made him a standout colleague. Sourav doesn't just manage accounts; he builds strategic partnerships. I cannot recommend him highly enough for a CS role.

HK
Hari Kashyap
Customer Success Manager @ Heap by Contentsquare
Colleague · April 2026
"
🔗 LinkedIn Recommendation

He brings data-backed insights to every customer conversation.

I highly recommend Sourav as a Customer Success Manager. He joined our team at Heap during a major workflow transition and stepped up immediately. Sourav is the type of CSM who does the deep research before every call; he doesn't just check in, he brings data-backed insights that show he truly understands his customers' business cases.

In just six months, he led over 50 value and renewal meetings while proactively identifying churn risks through his own custom tracking and analysis. He is excellent at navigating technical product challenges and isn't afraid to lean into commercial or executive-level conversations. Sourav is a dedicated, proactive, and data-driven professional who would be a massive asset to any CS organization.

CH
Christy Hollingshead
VP, Customer Success · Driving Customer Value & Product Adoption
Senior colleague · April 2026

Let's connect

Open to the
right conversations.

Whether you're a hiring manager, a future collaborator, or just curious — I'd love to connect. I'm always open to roles where customer impact is the north star.