Customer Success Manager – VC Backed Startups

SignalFire

Customer Success Manager joining SignalFire’s network connecting professionals with VC-backed startups. Driving adoption, retention, renewals, and expansion across early-stage technology companies.

Posted 8/5/2026full-timeNew York City • New York • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in customer success strategies, focusing on driving renewals, expansion, and customer retention. Proficient in utilizing customer success tools and metrics to enhance customer engagement and satisfaction.

Highest-signal resume keywords

Customer Success ManagementRenewals and ExpansionRelationship BuildingGainsightData-Driven Mindset

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Customer Success StrategiesCustomer RetentionCustomer Engagement MetricsOnboarding ProcessesCustomer Advocacy

Soft Skills

Communication SkillsCollaborationTrust Building

Tools & Technologies

GainsightChurnZeroZendeskHubSpotTotango

Industry Keywords

B2B SaaSHigh-Growth StartupEnterprise CustomersCustomer Success Platforms

About the role

Key responsibilities & impact

Own customer relationships to drive adoption, satisfaction, and long-term retention
Develop and execute customer success strategies for renewals and expansion
Act as a trusted advisor helping customers achieve business goals
Build scalable customer onboarding, enablement, and support processes
Collaborate with product, sales, and marketing to improve customer experience
Develop playbooks and success metrics to optimize customer engagement
Advocate for customer needs and provide feedback to product and engineering teams
Implement and manage customer success tools such as Gainsight, ChurnZero, Zendesk, and HubSpot
Join SignalFire’s talent network so the profile can be shared with portfolio companies
Respond to potential opportunities identified by SignalFire talent partners or portfolio-company leaders

Requirements

What you’ll need

3+ years of experience in customer success, account management, or a related function
Experience at a high-growth startup or SaaS company
Proven ability to drive renewals, expansion, and customer retention
Strong relationship-building and communication skills
Experience working with B2B SaaS, enterprise customers, or technical products is a plus
Familiarity with customer success platforms such as Gainsight, ChurnZero, and Totango
Data-driven mindset with experience tracking NPS, churn, and engagement metrics
Passion for building and scaling customer success functions from the ground up
Experience driving customer retention, expansion, and advocacy

Benefits

Comp & perks

Visibility into exclusive early-stage opportunities
Potential access to full-time, fractional/interim, and advisory opportunities
Profile retained for future customer success roles in SignalFire’s portfolio
Potential access to opportunities across SignalFire’s portfolio companies