Enterprise Account Executive (Founding Hire)

Mission Inbox•Houston, TX

3d•Remote

About The Position

Mission Inbox is a B2B email infrastructure platform processing over 80 million emails per month for more than 130 customers globally, including enterprise accounts with annual contracts exceeding $240,000. The company is cash-flow positive, profitable, and experiencing significant year-over-year growth with strong net revenue retention. Operating as a fully remote, globally distributed team, Mission Inbox maintains high execution standards. The company offers three product lines: Sales & Marketing email infrastructure, Transactional email, and an AI Shield trained on over 90 million emails, which serves as a competitive advantage in an increasingly challenging deliverability market.

Requirements

4-7 years of B2B SaaS closing experience as a quota-carrying Account Executive.
Proven track record of closing deals with ACVs between $80,000 and $250,000.
Background in B2B infrastructure, devtools, martech, or RevOps tech (e.g., Twilio/SendGrid/Postmark, Outreach/Apollo/Salesloft, HubSpot/Marketo).
Technical fluency to discuss APIs, authentication, IP reputation, and infrastructure with a CTO.
Demonstrated ability to multi-thread accounts and engage multiple stakeholders.
English fluency, written and verbal.
Resilience and patience to manage enterprise sales cycles that span multiple quarters.
A builder mindset, willing to co-create the enterprise sales playbook.

Nice To Haves

Spanish or Portuguese language proficiency.

Responsibilities

Own a named account list of 80-100 target companies across Sales & Marketing and Transactional cubes, including building, hunting, and defending these accounts.
Land deals with a baseline Annual Contract Value (ACV) of $60,000+, with a focus on securing $200,000+ deals.
Multi-thread accounts by engaging with 5+ stakeholders per opportunity, including Marketing Ops, RevOps, CTOs, VPs of Engineering, Procurement, and Security.
Become an expert in email infrastructure, discussing deliverability, sender reputation, IP warming, SPF/DKIM/DMARC, and the competitive landscape.
Manage the procurement process, including security reviews, MSAs, DPAs, and vendor onboarding, utilizing existing playbooks for large deals.
Partner with Marketing on Account-Based Marketing (ABM) plays for top accounts.
Collaborate with the SMB Sales team to identify upmarket signals from inbound leads.
Shape the enterprise roadmap by providing insights on enterprise buyer requirements directly to the product team.