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Tellus Solutions

Backend Engineer

Tellus Solutions, San Francisco, California, United States, 94199

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Job Description: About the Role You'll be one of the very first engineers shaping our core product and reimagining how people integrate AI companions into their day-to-day workflows. Expect to:

Think from zero . Whiteboard the concept in the morning and demo it by evening. Own the stack . Backend, frontend, model orchestration, observability-whatever removes friction between idea and shipped product. Bridge research and delight.

Sit beside scientists, translate breakthroughs into polished consumer experiences, and push them to production in days, not quarters. Define the bar.

Establish the engineering, design, and reliability standards that every future hire will follw. Move markets.

Your features won't live in a sandbox-they'll redefine how everyday people trust and collaborate with AI.

You'll be leading initiatives from conceptual design to production deployment, iterating quickly and putting real user feedback at the heart of product decisions.

Key Responsibilities

Craft end-to-end experiences:

Design, code, and ship full-stack features-Python, TypeScript, Postgres, GPU infra-whatever it takes. Design MCP schemas:

Create flexible, extensible JSON-based models that represent property context, room types, policies, branding, and more. Integrate core booking systems:

Build robust connectors to PMS, CRM, messaging platforms, and booking engines Build internal and partner-facing APIs:

Develop secure, scalable APIs that ingest, structure, and serve context to downstream AI agents. Engineer for trust:

Single-digit-ms paths, sandboxed execution, telemetry everywhere-four nines or it's broken. Invent agentic primitives:

APIs, eval harnesses, and safety guardrails that let wild research ship to millions. Listen, iterate, delight:

Sit with users, absorb the pain, and turn feedback into joy fast.

You Bring Must Haves

More than 5 yrs years of professional software engineering experience Strong backend fundamentals: REST API architecture, distributed systems, cloud deployment Proficiency with JavaScript, React, and other web technologies Proficiency with a backend language (we use Py C. B thon) Some experience with relational databases like Postgres/MySQL Deep experience integrating 3rd-party APIs and building data abstraction layers (bonus: hotel/hospitality tech exposure) Working knowledge of LLM pipelines, embeddings, and context windows (LangChain, OpenAI Assistants API, etc.) Proven ability to thrive in fast-growing, product-driven companies by effectively navigating loosely defined tasks and managing competing priorities or deadlines.

Nice to Haves

Familiarity with travel tech (e.g. Mews, SynXis, Oracle Opera, Cloudbeds) Experience designing or managing structured knowledge graphs or JSON schemas Experience with LLMs, prompt engineering, or function calling Former founder, or early engineer at a startup who has built a product from scratch is a plus Interest in AI/ML (direct experience not required)