Xaira Therapeutics
Senior Software Engineer, X-Scientist
$205K–$325K
South San Francisco, California, United States · Senior · Full-time · Posted Jun 11, 2026
About the job
Build reliable AI-assisted scientific software that connects models, tools, datasets, and workflows for drug discovery.
What you'll do
- Develop backend systems, APIs, tool-calling infrastructure, SDKs, CLIs, and workflow runners.
- Build agentic interfaces and reliable, observable, tested systems for long-running scientific workflows.
- Collaborate with scientific and technical teams to turn research workflows into usable software.
What they ask for
- Strong Python engineering skills, including clean, typed, tested, maintainable code.
- Experience building at least one production library, CLI, API, SDK, backend service, workflow system, or developer platform.
- Familiarity with LLM application development, agent frameworks, tool calling, MCP-style interfaces, or orchestration systems.
- Strong communication skills and ability to work collaboratively in a multidisciplinary environment.
Nice to have
- Background or interest in computational biology, bioinformatics, protein design, single-cell genomics, biomedical AI, or adjacent fields.
- Familiarity with biomedical resources such as PubMed, UniProt, AlphaFold, PDB, or DepMap.
Pay
$205,000 - $275,000 annually (base salary); up to $235,000 - $325,000 (total cash compensation)
Tools
Python, LLM, MCP, PubMed, UniProt, AlphaFold, PDB, DepMap
AI focus
Develop AI-assisted and agentic systems that connect AI models with scientific tools and workflows for drug discovery.
Model-written summary · the original posting is authoritative