Full-stack Engineer

Speak•San Francisco, CA

3d•$150,000 - $280,000

About The Position

Speak is looking for a senior full-stack engineer to serve as the hands-on technical lead for Discovery, the pod that helps motivated learners and small teams discover, try, and buy Speak. You’ll set technical direction across the web acquisition and purchase journey, including public discovery, authentication, checkout, billing, provisioning, and measurement. You’ll work primarily in TypeScript across Next.js/React, Node.js, and Postgres, partnering with engineers in adjacent pods where the experience crosses team boundaries. You’ll turn business goals and product requirements into clear technical designs, lead execution across multiple engineers and agent-driven contributions, and raise the bar for architecture, reliability, analytics, and rollout. Near-term work includes self-serve Speak for Business onboarding, web payments experimentation, enterprise-ready web journeys, and foundations that let Marketing publish and measure experiments without depending on engineers for every change.

Requirements

6+ years of experience building high-quality, production-scale web applications, with strong proficiency in TypeScript, React, and Node.js
A track record as the technical lead for ambiguous, multi-system initiatives, while remaining hands-on in architecture and implementation
Experience designing APIs and backend services, working with relational data, and reasoning clearly about boundaries between systems
Strong product and business judgment, with the ability to translate growth or B2B objectives into pragmatic scope, measurable outcomes, and durable technical foundations
Experience building reliable transactional or stateful workflows, with strong instincts around data integrity, idempotency, observability, and safe rollouts
Ability to balance building the right way with shipping quickly, learning from real usage, and improving systems incrementally
Excellent cross-functional communication and a desire to mentor engineers and raise the quality of team decisions
Excitement about AI-assisted development, paired with thoughtful verification and a high production-quality bar

Nice To Haves

Deep experience with Next.js and Postgres data modeling
Experience with web payments, subscriptions, billing, invoicing, or entitlements
Familiarity with identity and access, B2B account models, roles, or provisioning
Experience with analytics, attribution, experimentation, CRM, or marketing technology integrations
Experience building internationalized web products or working across consumer and B2B SaaS surfaces

Responsibilities

Serving as the hands-on technical lead for Discovery, from problem framing and architecture through implementation, launch, and production monitoring
Designing and building full-stack web journeys that help individuals and small teams find, evaluate, purchase, and start using Speak
Leading cross-repository integrations across authentication, payments, entitlements, analytics, attribution, CRM, and admin experiences
Partnering closely with product, design, analytics, Marketing, Sales, and adjacent engineering pods to define scope, sequence dependencies, and deliver end-to-end outcomes
Setting an enterprise-ready quality bar for privacy and security, payment correctness, observability, performance, and resilient rollouts
Evolving architecture and development patterns incrementally while protecting conversion and revenue across high-traffic global funnels
Helping the pod operate AI-natively by reviewing plans and designs before implementation, creating strong QA and verification loops, and enabling AI-assisted contributors to ship safely
Mentoring engineers and raising the team’s bar for technical judgment, communication, and ownership