Senior Full-Stack Engineer — Enterprise B2B SaaS & AI

Candidate; San Francisco (CA); On-site; USD 180,000 - 250,000; Full time

Job summary

Speak is seeking a senior full-stack engineer to contribute across the Speak for Business product, focusing on enterprise onboarding, reporting, subscription workflows, and admin experiences. You’ll work primarily in TypeScript, Node.js, and Postgres, shaping multi-tenant architectures with a hands-on approach.

In a small, fast-moving team, you’ll translate product goals into robust technical designs, mentor peers, and uphold high standards for reliability, security, and code quality as we

Qualifications

• 6+ years of experience building production-scale web applications.
• Proficiency in TypeScript, Node.js, and PostgreSQL.
• Full-stack capability across frontend and backend.
• Experience with B2B SaaS, enterprise product surfaces, or multi-tenant systems.
• Strong product and business judgment, turning enterprise requirements into pragmatic scope and durable technical foundations.
• Excellent cross-functional communication and collaborative working style.

Responsibilities

• Build and own full-stack features across the Speak for Business surface, including partner portals, admin dashboards, reporting, and B2B subscription workflows.
• Design and implement backend services, APIs, and data models that support multi-tenant enterprise use cases.
• Lead cross-functional integrations across authentication, entitlements, billing, CRM, and analytics.
• Partner with product, design, sales, and customer success to define scope and deliver end-to-end outcomes.
• Set a high quality bar for privacy, security, observability, data integrity, and safe rollouts.
• Contribute to an AI-native development workflow with strong verification loops and safe shipping with AI-assisted tooling.
• Mentor engineers and raise the team’s technical judgment and ownership.

Skills

TypeScript

Node.js

SQL databases

Tools

PostgreSQL

Job description

Speak is seeking a senior full-stack engineer to contribute across the Speak for Business product, focusing on enterprise onboarding, reporting, subscription workflows, and admin experiences. You’ll work primarily in TypeScript, Node.js, and Postgres, shaping multi-tenant architectures with a hands-on approach.

In a small, fast-moving team, you’ll translate product goals into robust technical designs, mentor peers, and uphold high standards for reliability, security, and code quality as we