Founding Account Manager

Altor Partners; Boston (MA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Discretionary PTO

Healthcare

Dental

Vision

Company retreats

Job summary

Altor Partners is seeking a senior Customer Success/Account Management professional to own a portfolio of enterprise accounts and drive renewals and growth. You’ll hunt within the existing base for new teams, demonstrate ROI in QBRs, and align product roadmaps with customer plans.

You’ll build relationships from engineers to CFOs and work closely with Product and CS to maximize value. This is a fully remote role with a strong East Coast preference.

Qualifications

• 5+ years in account management, expansion sales, or strategic customer success at a B2B SaaS company.
• Track record owning a $5M+ book of business with 110%+ net dollar retention or equivalent.
• Comfort selling to and negotiating with technical buyers—engineers, architects, CTOs.
• Experience negotiating multi-year enterprise renewals, including pricing and legal cycles.

Responsibilities

• Own a portfolio of enterprise accounts - renewals and net dollar retention against clear targets.
• Hunt inside the existing customer base for new teams, use cases, and budget, the way an AE hunts new territory.
• Run QBRs that prove ROI with data and tie the roadmap to each customer's long-term plans.
• Build multi-threaded relationships, from platform engineers up to the economic buyer.
• Track usage and engagement signals so you catch renewal risk months out, not weeks.
• Partner closely with Customer Success (who own satisfaction, not revenue) and feed customer insight back to Product.

Skills

Account management

Strategic CS

Sales negotiations

B2B SaaS

Renewals management

Job description

APIs have quietly become the plumbing of the AI economy - every agent, every integration, every product built on an LLM has to talk to somebody's API, and right now most companies' API estates are a mess.

That's the gap this business exists to close, and it's working: this VC-backed API infrastructure company has doubled headcount in the past year, sits on $5-10M in annual revenue, and is tracking toward a Series B.

Its net revenue retention is 130% - top 5% of startups on that metric and its enterprise customers, mostly Fortune 500 and category-leading tech names, rarely leave. You'd be the first person hired to own what happens after the sale.

Why this role:

• A proven path to Head of Function - the current Head of Customer Success joined as a senior individual contributor and was promoted into running the team; prove yourself here and the same door is open to you.
• You're the founding hire, not employee #47 - you'll build the account planning, QBR, and renewal playbook from scratch, and it'll carry your fingerprints for years.
• Numbers that sell themselves - 130% net revenue retention and 94% gross retention, on infrastructure customers can't easily rip out.
• Enterprise logos, real budgets - a book weighted toward Fortune 500 and top-tier tech accounts, with deals ranging from $80K to $600K+.
• A real seat at the table - your voice-of-customer feedback goes straight to Product and Engineering, and shapes what gets built next.

What you'll do:

• Own a portfolio of enterprise accounts - accountable for renewals and net dollar retention against clear targets.
• Hunt inside the existing customer base for new teams, use cases, and budget, the way an AE hunts new territory.
• Run QBRs that prove ROI with data and tie the roadmap to each customer's long-term plans.
• Build multi-threaded relationships, from platform engineers up to the economic buyer.
• Track usage and engagement signals so you catch renewal risk months out, not weeks.
• Partner closely with Customer Success (who own satisfaction, not revenue) and feed customer insight back to Product.

What you'll need:

• 5+ years in account management, expansion sales, or strategic customer success at a B2B SaaS company (dev tools or infrastructure a strong plus).
• A track record owning a $5M+ book of business with 110%+ net dollar retention or equivalent.
• Comfort selling to and negotiating with technical buyers - engineers, architects, CTOs and translating that into terms a CFO or procurement team will sign off on.
• Experience negotiating multi-year enterprise renewals, including pricing and legal cycles.

**The role is fully remote with a strong preference for the East Coast - ideally New York, where you can work alongside the team in person if you want to. On top of that: discretionary PTO, healthcare, dental and vision cover, and company retreats that bring the team together in person.

Sounds like you?