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# Senior Full Stack Engineer

- **Company:** Johnson, Alice
- **Location:** Fremont, CA, United States
- **Experience:** Expert
- **Salary:** $200,000 - $280,000
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Automation of Tests, C++ (Programming Language), Cursor, Database Schema, Github, Python (Programming Language), PostgreSQL, Redis, Microsoft Copilot, Scala (Programming Language), Search Technologies, Data Streaming, TypeScript, WebSocket, Datadog, Google Cloud, Real Time Systems, Lightspeed, ReactJS, Retrieval-Augmented Generation, Large Language Models, Claude Code, Reliability of Systems, Technical Debt, Backend, Kubernetes, Front End Software Development, Terraform, Code Restructuring, Docker, Golang
- **Published:** October 22, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=b1e7104663df776d

## About the Role

We are looking for a Senior Full-Stack Software Engineer with 5+ years of experience to join as a core contributor building a production platform from the ground up at the intersection of process intelligence and agentic AI. You'll be an early engineering hire at a Lightspeed-backed seed-stage company that is already transforming operations for large enterprises.

We need someone who has made architectural decisions, lived with the consequences, and iterated - a builder who writes idiomatic Go, ships React frontends, and has hands-on experience integrating LLMs into production systems. You'll work directly with the founders and have significant technical decision-making authority in a young, clean codebase.

What we're looking for

Must-haves

 * 5+ years building production software, with experience shipping across the stack and sustained ownership of meaningful systems.
 * Strong backend engineering in a typed language: You have production experience in Go, C++, Java, Scala, or C and can design and operate reliable backend systems.
 * Python proficiency: You can build and maintain Python services, work with async patterns, and integrate with AI/ML tooling
 * PostgreSQL skills: Database schema design, migrations, and production operations
 * React and TypeScript: You can build and maintain a modern React frontend (hooks, context, component composition)
 * Hands-on LLM systems design: You have personally built and shipped systems leveraging LLM APIs and understand LLM development patterns (e.g., orchestration, tool calling)
 * Pragmatic mindset: You know when to refactor vs. ship, when to build vs. buy, and how to manage technical debt intentionally
 * Ownership mentality: You take end-to-end responsibility for features, from design through deployment and monitoring
 * Comfort with ambiguity: Early-stage startup means evolving requirements and shifting priorities

Strongly preferred

 * Customer-facing communication: Clear written and verbal communicator with users/customers
 * Vector search / embeddings: RAG patterns, hybrid search
 * AI-assisted development: You already use tools like Claude Code, Cursor, Copilot, or similar to accelerate your work
 * Testing discipline: Building test frameworks, establishing coverage standards, writing meaningful tests
 * Production operations: Observability, incident response, system reliability

Nice to have

 * Infrastructure as Code: Terraform, GCP, container orchestration
 * Real-time systems: Server-Sent Events (SSE), WebSockets, streaming APIs

5 - 10 years of experience in full-stack software engineering, with strong Go (or another typed language), Python and React/TypeScript

Tech stack

Go, Python, PostgreSQL, Redis, React, TypeScript, GCP, Terraform, Docker, Datadog, GitHub