Software Engineer; Member Technical Staff

Overview

Software Engineer (Member of the Technical Staff) — Transfyr Bio

Transfyr is building physical AI for science. We design systems that operate in real laboratory environments to curate, capture, and interpret tacit knowledge from real-world scientific work, turning it into durable, operational knowledge. We are hiring in Cambridge, MA, with in-person work; other locations may open in the future.

We are looking for engineers who will design and build core systems that ingest, organize, and serve multimodal data from complex laboratory workflows, touching physical environments, evolving protocols, and long-tail failure modes.

• Build the Backbone:
  Develop core software systems that enable reproducible, legible, and scalable science in real-world laboratory environments.
• Tame the Data:
  Build data pipelines and services that ingest, transform, and organize multimodal data (events, metadata, media, sensor outputs) generated by scientific workflows and support both rapid experimentation and production use.
• Make It Robust:
  Develop reliable infrastructure that supports both rapid iteration and production-grade robustness.
• Structure Reality:
  Collaborate with AI/ML engineers, perception engineers, scientists, and operations teams to translate evolving real-world needs into robust software abstractions.
• Own the End-to-End:
  Take cross-functional initiatives from concept to deployment, helping define system boundaries, milestones, and technical tradeoffs.
• Ship Tools People Trust:
  Develop internal and customer-facing tools that make complex systems understandable and usable for scientists and operators.
• Enable What Comes Next:
  Evaluate and integrate external tools, open-source software, and infrastructure components where they accelerate progress.

• High agency. You don’t wait for perfect specs, detailed tickets, or constant direction. You notice what needs to be done, anticipate downstream needs, and take ownership of pushing important work across the finish line.
• Biased toward action. You value momentum, can move quickly without being careless, and know when to trade elegance for progress.
• Successful in ambiguity. You can turn incomplete context into working software, ask the right questions when needed, and make reasonable assumptions when answers aren’t available yet.
• Thoughtful. You can balance speed, correctness, and long-term maintainability, and you understand that the right tradeoff depends on the moment.
• Clear, direct communicator. You close loops, surface issues early, and work effectively with colleagues who may not share your technical background.
• Intense. You care deeply about the mission, are willing to work hard when it matters, and take pride in helping a small team do outsized work.

• How to build things:
  Strong full-stack programming skills and a track record of shipping real software systems that get used, maintained, and evolved.
• Python, et al:
  Fluency in Python and the ability to work productively in other languages as the system requires. Our stack spans backend services, data pipelines, and user-facing interfaces, and may involve technologies such as JavaScript/Type Script (HTML/CSS), and systems languages like C++ or Rust in performance- or hardware-adjacent components. We don’t expect candidates to have experience with every part of our stack; we value strong fundamentals, curiosity, and the ability to learn quickly over familiarity with specific tools.
• Data / Infrastructure:
  Experience designing, building, and maintaining data-intensive or backend systems.

• A passion for and experience in science
• A passion for and experience with AI
• Demonstrated experience working in fast-moving/ambiguous environments (like startups!)

• Competitive compensation (cash + equity)
• Full benefits (low/no-cost health insurance options, HSA, 401K with matching, lunch subsidy, etc.)

Apply now

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