Senior Full Stack Engineer — Real-Time AI Backend Lead

PulseRise Technologies LTD; San Francisco (CA); On-site; USD 150,000 - 190,000; Full time

Job summary

PulseRise Technologies LTD in San Francisco is seeking a Senior Full Stack Engineer with a strong backend focus to design, build, and scale core infrastructure of a rapidly growing AI platform. You'll work closely with the CTO on backend systems, agent runtimes, and real-time infrastructure.

You should have 5+ years building production backend services, fluent TypeScript, and hands-on experience with real-time streaming and distributed systems.

Qualifications

• 5+ years of experience building and operating backend systems in production, including on-call responsibility.
• Fluent TypeScript and comfort across the stack, with a clear preference for going deep on the backend.
• Experience building real-time systems in production, such as WebSockets, SSE, event streaming, or message queues.
• Strong distributed systems intuition, including a solid understanding of consistency tradeoffs.
• Infrastructure you've shipped to real external users, not only internal tooling.
• A working understanding of LLM agent loops and model interaction patterns (ML engineering depth is not required).
• Based in the San Francisco Bay Area or willing to relocate before starting; US work authorization sponsorship possible for exceptional candidates.
• A direct, proactive communication style suited to a small, in-person team.
• Openness to a paid in-person work trial on a real project, from a few days to two weeks.
• Nice to have: experience with Cloudflare Workers, Durable Objects, Fly.io, or other edge/serverless compute.
• Nice to have: experience building agent systems, model routing layers, or LLM tool-use architectures.
• Nice to have: background as a founder, CTO, or early engineer, ideally at an AI or agentic company.
• Nice to have: hands-on AI side projects or active experimentation with AI tools.
• Familiarity with parts of the stack is a plus: Hono, Drizzle ORM, Postgres, Zod, SST, Vercel AI SDK, Docker, React, Vite.

Responsibilities

• Work directly with the CTO to design, build, and scale the core backend infrastructure
• Build and operate agent runtimes, including SSE streaming, task queues, and multi-model LLM provider routing
• Design distributed systems on Cloudflare Workers, Durable Objects, and Postgres, making clear tradeoffs around consistency and performance
• Own deployments across Cloudflare Workers and Fly.io, using blue-green rollouts and canary patterns
• Set a high bar for reliability, monitoring, and incident response as the platform onboards its first paying users
• Contribute across the stack, including React frontend work when needed
• Take ownership of complex technical problems end-to-end, from design through production
• Help shape engineering practices and culture as the team grows

Skills

TypeScript

Backend systems

Distributed systems

Real-time streaming

On-call experience

LLM patterns

Tools

Cloudflare Workers

Fly.io

Postgres

Durable Objects

SSE

Job description

PulseRise Technologies LTD in San Francisco is seeking a Senior Full Stack Engineer with a strong backend focus to design, build, and scale core infrastructure of a rapidly growing AI platform. You'll work closely with the CTO on backend systems, agent runtimes, and real-time infrastructure.

You should have 5+ years building production backend services, fluent TypeScript, and hands-on experience with real-time streaming and distributed systems.