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Senior Backend Engineer (New York)

mLabs

$130,000 - $200,000
Oct 28, 2025
New York, NY, US
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MLabs is a rapidly growing, well-funded B2B SaaS company that is reinventing the Accounts Receivable category for scaling technology companies by providing a modern, AI-powered platform to automate complex revenue workflows and billing. They are seeking a Mid/Senior Product Engineer with strong backend skills to build world-class financial tools and help shape their engineering culture.

Requirements

  • 3 to 8 years of experience as a backend or full stack software engineer working on production products.
  • Strong backend skills and proficiency in Kotlin (or equivalent experience with a strong statically-typed language and the eagerness to master Kotlin quickly).
  • Proven ability to contribute to and shape backend architecture, ensuring scalability and stability.
  • Experience in the FinTech, Payments, or Revenue Operations (RevOps) domain.
  • Experience working on AI-powered platforms or complex B2B workflow automation.

Responsibilities

  • Design, build, and ship robust financial tools for fast-scaling technology companies, focusing on the core billing, quote-to-cash, and revenue operations process.
  • Play an integral role in shaping our backend architecture for performance, reliability, and scalability to support our hypergrowth.
  • Write clean, high-performance code, primarily leveraging Kotlin, to create a world-class product experience.
  • Guide product direction and decisions by collaborating closely with data, product, and design teams.
  • Contribute to an inclusive, high-performance environment where autonomy and ownership are key.
  • Shape our backend architecture
  • Build world-class financial tools

Other

  • Hybrid work model, requiring 3 days a week in our New York City office
  • A product-minded approach with a commitment to delivering a world-class user experience.
  • A desire to operate with high autonomy and play a defining role in building a category-leading product.
  • Excitement about working in a fast-paced, high-growth startup environment with high operating speed.
  • Visa sponsorship is not available for this position.