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Xaira Therapeutics

Senior Software Engineer, X-Scientist

Xaira Therapeutics · South San Francisco, California, United States

Posted about 3 months ago · $189,000 - $245,000 · Previously reposted

or apply directly on Xaira Therapeutics's site. We never take the application ourselves.

Is this posting real?

This role has been open
81 days
Xaira Therapeutics's roles stay open a median of 80 days
Reposted
Yes
taken down and listed again at least once
Salary listed
Yes
100% of Xaira Therapeutics's roles list one
Ghost-job risk at Xaira Therapeutics
high
22 stale, 1 reposted of 24 open
Hiring momentum
33 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-23

Measured from postings appearing on and disappearing from Xaira Therapeutics's own greenhouse board since 2026-08-03. Full hiring picture for Xaira Therapeutics.

About this role

As a Senior Software Engineer on the X-Scientist team at Xaira Therapeutics, you will develop backend systems and APIs that integrate AI models with scientific tools and workflows. Your work will involve creating tool-calling infrastructure, SDKs, and interfaces that facilitate scientific analyses, while ensuring reliability and maintainability of long-running workflows. Collaboration with multidisciplinary teams will be essential to transform complex research workflows into user-friendly software solutions.

Our read on this posting3.4out of 5
benefits
3/5
freshness
1/5
career value
4/5
role clarity
4/5
pay transparency
5/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Xaira Therapeutics as an employer.

What you need

  • Strong Python engineering fundamentals with clean, typed, tested, maintainable code
  • Experience building at least one of the following: a 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
  • Comfort working with complex systems that combine multiple components, external calls, domain-specific logic, and evolving user needs
  • Good instincts for abstraction, error handling, reliability, and designing software that can grow across use cases
  • Strong communication skills and ability to work in a collaborative, multidisciplinary environment

Nice to have

  • Background or interest in computational biology, bioinformatics, protein design, single-cell genomics, biomedical AI, or adjacent domains
  • Familiarity with biomedical databases or tools such as PubMed, UniProt, AlphaFold, PDB, DepMap, or related resources
  • Curiosity about biology and scientific research; you do not need a biology background, but you should be excited to learn the domain and work closely with scientists and ML researchers

What you get

  • Competitive compensation and benefits package
  • Base salary range of $205,000 - $275,000 annually
  • Total cash compensation up to $235,000 - $325,000
  • Open, flexible, and friendly work environment
  • Platform for developing long-term careers

Worth weighing

  • No specific technologies or frameworks mentioned, which may affect the clarity of the tech stack
  • The role involves collaboration with scientists and ML researchers, which may require a steep learning curve for those without a biology background

Summarised from Xaira Therapeutics's posting. Read the full original.

Listed by Xaira Therapeutics on their greenhouse job board, last confirmed open on 2026-10-23. PitchMeAI is not the employer.

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