Customer Success Manager — APAC

Oneinbox; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

Equity for early team members

Health coverage

APAC off-sites

Flexible time off

Learning budget

Daily meals and commuter support

Job summary

OneInbox is seeking a focused Customer Success leader to own the APAC enterprise portfolio, drive renewals, and surface expansion opportunities. You will establish trust with key stakeholders and align cross-functionally to reduce churn and grow net revenue.

You’ll run executive QBRs, monitor health metrics and usage signals, and coordinate with sales, solutions, and product to close open workstreams. This role offers real ownership and a path to scale the function across a fast-growing APAC

Qualifications

• 4-7 years in customer success, technical account management, or solutions consulting at a B2B SaaS or API-first company.
• Experience managing enterprise accounts with complex deployments and integrations.
• Strong stakeholder management with VP- and C-level conversations.
• Technically fluent enough to discuss APIs and architecture without writing code.

Responsibilities

• Own the APAC enterprise portfolio and build relationships with key stakeholders.
• Audit renewal timelines, health metrics, and usage patterns across the portfolio.
• Align with sales, solutions, and product on open workstreams.
• Open renewal conversations 120 days ahead with regional AEs.
• Surface 3+ expansion opportunities supported by usage data.
• Contribute to a post-sales playbook for the team.

Skills

Customer success

Enterprise accounts

Stakeholder management

APIs discussion

C-level communication

Ambiguity handling

Job description

Own retention and expansion across our APAC enterprise portfolio. Make sure every deployment becomes a renewal and a reference.

About OneInbox

• We're putting voice at the heart of how enterprises actually run.
• We're the production-grade voice AI platform built for Japan and Asia-Pacific.
• We're handling millions of real calls every month - in Japanese, English, Hindi, and Arabic - for banks, real estate firms, and government services.
• Try OneInbox today.

Why we're hiring this role

• Our enterprise deployments are complex; without strong CS, expansion and renewal slip even when the product is delivering.
• We need a single-threaded owner for APAC accounts who can run executive QBRs and unblock cross-functional work.
• This role directly moves Net Revenue Retention in a market that's about to compound.

What you'll be doing

First 30 days

• Take ownership of the APAC enterprise portfolio and build relationships with key stakeholders at each account.
• Audit current health metrics, renewal timelines, and usage patterns across the portfolio.
• Align with sales, solutions, and product on open workstreams.

First 60 days

• Establish a structured cadence (weekly / biweekly / monthly) based on account tier.
• Stand up proactive health monitoring using usage and engagement signals.
• Deliver the first round of structured QBRs for tier-1 and tier-2 accounts.

First 90 days

• Open renewal conversations 120 days ahead with the regional AEs.
• Surface 3+ expansion opportunities supported by usage data.
• Contribute to a post-sales playbook the rest of the team can run.

Who you are

• 4-7 years in customer success, technical account management, or solutions consulting at a B2B SaaS or API-first company.
• Experience managing enterprise accounts with complex deployments and integrations.
• Strong stakeholder management - comfortable with VP- and C-level conversations.
• Technically fluent enough to discuss APIs and architecture without writing code.
• Comfortable operating in ambiguity and helping define the function as it scales.

Why OneInbox

• Generational impact: build the voice layer that every APAC enterprise eventually runs on.
• Ownership culture: you'll work close to the founders and ship in days, not quarters.
• Kind, high-bar team: senior operators who've built and led at scaled companies - and are easy to work with.
• Strong backing: institutional investors and committed enterprise customers from day one.

What we offer

• Real ownership: competitive salary and meaningful equity for early team members.
• Health coverage: medical, dental, and vision for you and your dependents.
• Team time: regular in-person off-sites across Tokyo, Singapore, Dubai, and Bengaluru.
• Flexible time off: take what you need, when you need it.
• Learning budget: dedicated annual L&D, plus conference and travel support.
• Daily essentials: catered meals on office days, commuter support, and wellness benefits.