Customer Success Manager

Xray; Portugal; On-site; EUR 42,000 - 64,000; Full time

Job summary

Sembi, Inc. is seeking a Customer Success Manager in Portugal. You will independently own a portfolio of mid-market and growth accounts, driving adoption, engagement, and measurable value realizations from our product across the customer lifecycle.

You will collaborate with Renewals, Product, Support, and Sales to onboard customers, maintain engagement, and ensure ongoing value realization. This role emphasizes proactive stakeholder management, risk identification, and continuous improvement

Qualifications

• 2–5 years of experience in customer success, account management, or SaaS roles.
• Proven ability to independently manage a portfolio of mid-market or growth accounts.
• Strong analytical skills to interpret usage data and translate insights into action.
• Excellent communication and relationship-building across multiple stakeholders."
• Proactive, organized, and able to manage competing priorities across accounts.

Responsibilities

• Own a portfolio of mid-market and growth accounts, ensuring adoption and value realization.
• Develop and execute customer success plans tailored to each account.
• Proactively engage customers to drive adoption and best practices.
• Manage customer relationships across user and business stakeholders.
• Monitor health signals like usage, engagement, and sentiment; act on risks.
• Identify churn signals early and take proactive mitigation actions.
• Serve as the primary point of contact and coordinate internally for resolutions.

Skills

Portfolio management

SaaS experience

Analytical skills

Communication

Stakeholder management

Tools

Salesforce

HubSpot

Gainsight

Job description

The Customer Success Manager is the baseline operating role within the Customer Success organisation and is responsible for driving adoption, engagement, and measurable value realisation across a portfolio of mid-market and growth accounts. You will independently own your portfolio, ensuring customers achieve meaningful outcomes from the product while proactively managing account health, risks, and opportunities across the customer lifecycle.

This role is central to ensuring strong customer outcomes and renewal readiness. You will work closely with internal teams, including Renewals, Product, Support, and Sales, to ensure customers are successfully onboarded, engaged, and continuously realising value from the product.

This is a fully independent ownership role, suited to someone who can manage a portfolio autonomously, interpret customer data to drive action, and proactively engage stakeholders to improve outcomes, retention, and customer satisfaction.

Key responsibilities

• Own a portfolio of mid-market and growth accounts, ensuring customers successfully adopt and realise value from the product.
• Develop and execute customer success plans tailored to account needs, maturity, and usage patterns.
• Proactively engage customers to drive adoption, best practices, and continuous value realisation.
• Independently manage customer relationships across user and business stakeholders.
• Monitor customer health signals including usage, engagement, sentiment, and feedback.
• Identify risks, gaps, and churn signals early and take proactive action to mitigate them.
• Own first-line response to customer health risks and coordinate internally to ensure resolution.

Renewal Readiness & Lifecycle Management

• Own renewal readiness signals for your portfolio by ensuring customers are achieving measurable value.
• Partner with Renewal Managers by providing structured insights on account health, risks, and stakeholder context.
• Ensure customers are aligned on value outcomes ahead of renewal cycles, without owning commercial negotiation or contract execution.
• Act as the primary point of contact for your accounts, building strong, multi-threaded relationships across user and business stakeholders.
• Run structured customer engagements (e.g. success reviews, QBR-lite sessions) to reinforce value, alignment, and adoption.
• Maintain strong stakeholder mapping and engagement cadence across your portfolio.

Voice of Customer & Cross-Functional Collaboration

• Act as the voice of the customer, sharing structured feedback with Product, Renewals, Sales, and Support teams.
• Collaborate with internal teams to remove blockers and improve the customer experience.
• Support resolution of escalations through cross-functional coordination and ownership.

Data, Insights & Continuous Improvement

• Use usage, engagement, and customer feedback data to drive proactive decision-making.
• Identify patterns across your portfolio and propose improvements to processes, playbooks, or customer engagement strategies.
• Maintain accurate and up-to-date records in CRM and CS systems.

What we are looking for

• 2–5 years’ experience in customer success, account management, or SaaS customer-facing roles.
• Proven ability to independently manage a portfolio of mid-market or growth accounts.
• Strong analytical skills with the ability to interpret usage and engagement data and translate insights into action.
• Excellent communication and relationship-building skills, with the ability to engage multiple stakeholders at different levels.
• Proactive, organised, and comfortable managing competing priorities across multiple accounts.
• Strong understanding of SaaS business models and customer lifecycle management.
• Comfortable working in a fast-paced, high-growth environment with evolving processes.
• Demonstrated ability to operate independently with accountability for customer outcomes.

Nice to have

• Experience with CRM and Customer Success tools (e.g. Salesforce, HubSpot, Gainsight).
• Experience working in segmented CS models (SMB / Mid-Market / Enterprise).
• Exposure to structured renewal or retention processes and collaboration with Renewals teams.

An Equal Opportunity Employer - All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

By submitting your application, you acknowledge that Sembi, Inc. will process and retain your resume and related personal information solely for recruitment and hiring purposes. Resumes of unsuccessful candidates will be securely deleted within twelve (12) months of the hiring decision, unless a longer period is required by law or you provide explicit consent for continued retention (e.g., for consideration for future opportunities).

In compliance with applicable privacy laws, including the EU General Data Protection Regulation (GDPR), you have the right to request access to, correction of, or deletion of your personal information at any time by contacting [e-mail]. Sembi, Inc. does not sell candidate data and will ensure that all personal information is processed securely and in accordance with relevant data protection regulations.