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Full-Stack Lead Engineer – 25madison

Full-Stack Lead Engineer – 25madison

Company25madison
LocationNew York, NY, USA
Salary$170000 – $210000
TypeFull-Time
Degrees
Experience LevelSenior

Requirements

  • 5+ years of full-stack engineering experience, ideally in startup environments.
  • Strong proficiency in TypeScript and React (our core front-end stack).
  • Solid experience in at least one of Node, Next, Nest (or, Rust, Golang if you’re a performance person) or Python—bonus if you’ve dabbled in more than one.
  • Experience supporting data science teams and integrating ML/AI models. Hands on use with LLMs is great; hands-on ML/AI expertise is even better.
  • Familiarity with cloud infrastructure (AWS, GCP, or Azure) and CI/CD pipelines.
  • Excellent verbal and written communication skills.

Responsibilities

  • Own the technical implementation of each new startup concept—rolling up your sleeves to grind out code while making strategic decisions that balance speed and scalability.
  • Own entire projects end-to-end — from ideation to deployment.
  • Communicate complex technical concepts in simple terms.
  • Mentor junior engineers as we expand our ranks.
  • Push code quickly but also know when to invest in scalability and best practices.

Preferred Qualifications

  • Familiar with the B2B distribution business model and related operational/supply chain challenges a plus.
  • Experience with the tech stack at industrials businesses a plus.