We’re hiring a Founding Engineer to help architect and scale a next-generation AI-powered product from early traction to millions of users.
This is a high-impact role for someone who thrives in fast-moving environments, enjoys solving hard technical problems, and wants significant ownership over product and infrastructure decisions from day one.
You’ll work directly with the founder to define technical direction, build core systems, and establish engineering best practices as the company scales.
What You’ll Do
Lead architecture and technical decision-making across the platform
Build and scale highly reliable consumer-grade web applications
Own critical infrastructure, backend systems, and developer workflows
Design systems that support rapid product iteration and long-term scalability
Diagnose and resolve production issues end-to-end
Improve application reliability, observability, and performance
Work closely with product and leadership to shape the technical roadmap
Requirements
Experience
8+ years of experience shipping production software
Experience at a high-growth startup that scaled significantly in users and infrastructure
Previously worked as an early engineering hire at a startup or joined a company during its early growth phase
Proven experience owning production incidents from detection through postmortem
Experience building and scaling consumer or prosumer web applications, including mobile web experiences
Technical Skills
Frontend & Product Engineering
Strong production experience with:
TypeScript
React
Next.js (App Router)
Deep understanding of mobile web reliability and browser edge cases, especially iOS Safari
Backend & Infrastructure
Strong PostgreSQL expertise, including:
online migrations
partitioning
query optimization
large-scale production databases
Experience with distributed job and queue systems such as:
SQS
Temporal
BullMQ
Inngest
or equivalent technologies
AI & Integrations
Experience building AI-powered applications using OpenAI and/or Anthropic
Familiarity with:
prompt optimization
model routing
batching
latency and cost optimization
Experience integrating third-party platforms and APIs including payments, communications, storage, and transcription services
Reliability & Observability
Strong operational mindset with experience using tools such as:
Sentry
PostHog
structured logging platforms
Experience defining SLIs/SLOs and improving production visibility before customer impact occurs
Nice to Have
Experience in voice, transcription, or AI-native products
Familiarity with real-time systems, audio processing, or streaming infrastructure
Experience scaling products from early-stage through rapid growth.
#LI-SB1
Numbers & Facts
Location
Boston, MA
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Skills
Application Programming Interface (API)unmatched
Artificial Intelligence (AI)unmatched
Best Practicesunmatched
Cost Controlunmatched
Identify Issuesunmatched
Internet Applicationunmatched
JavaScriptunmatched
Leadershipunmatched
Mobile Applicationsunmatched
Multiplatform/Cross-Platformunmatched
Network Routersunmatched
PostgreSQLunmatched
Problem Solving Skillsunmatched
Product Engineeringunmatched
Product Supportunmatched
Query Optimizationunmatched
React.jsunmatched
Reliability Engineeringunmatched
Safari Browserunmatched
Simple Queue Service (SQS)unmatched
Startupunmatched
Systems Engineeringunmatched
Technical Recruitingunmatched
User Interface/Experience (UI/UX)unmatched
Web Browsersunmatched
iOSunmatched
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