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Senior Full Stack Application Engineer

Resonance
York, NY Full Time
POSTED ON 2/16/2026 CLOSED ON 6/3/2026

What are the responsibilities and job description for the Senior Full Stack Application Engineer position at Resonance?

About Us

Resonance is a technology company building a more sustainable and valuable fashion industry for designers, brands, manufacturers, consumers, and the planet. The company’s AI-powered operating system ONE enables brands to design, sell, and make in that order, empowering designers to operate with no unnecessary inventory and eliminating the financial and environmental burdens of the legacy fashion industry.

Resonance ONE is our software that powers any apparel company. Resonance ONE uses an emergent behavior model that redefines how garments are designed, sold and made with an “I know nothing” mindset that is constantly learning from our users. Resonance ONE includes the following:

  • An apparel brand or creator’s digital operating system to launch and run their brand’s business.
  • An AI Agentic framework, Contracts, and APIs for functions that span the end-to-end creation-to-closet functionality, including everything from 3D volumetric design and collection creation to payments to orders to inventory management and some non-standard processes that are specific to Resonance workflows
  • Internal value chain routing, organization, and optimization of garment manufacturing.Future analytics and machine learning functions for learning and optimization.

ONE primarily focuses on building a learning system that teaches optimally how to produce garments sustainably and without legacy restrictions.

Headquartered in New York City and Santiago, Dominican Republic, Resonance has partnered with more than 30 brands, including THE KIT and Rebecca Minkoff, to create garments that use 97% less dye, 70% less water, and 50% less material than any other fashion brand—and immediately eliminate overproduction.

Want to know more? Visit our website and read articles about us.

About the role

As a Senior Full Stack Application Engineer, you will be a critical role in implementing the applications roadmap at Resonance. This role…

Responsibilities

  • Own the App roadmap working closely with products to design and develop the next generation of Resonance services.
  • Design, build, and maintain, user-facing experiences, services, APIs, and systems
  • Make effective tradeoffs that consider business priorities, user experience, and a sustainable technical foundation
  • Strike a balance between always trying to improve the platform and tools we use while being highly value-focused and aiming to delight customers
  • Debug production issues across services and multiple levels of the stack

Minimum Qualifications

  • 5 years of software engineering experience
  • Enjoy being a generalist working on both the frontend and backend
  • Care deeply about the user experience and take pride in building products to solve problems and delight users
  • Prefer simple solutions and designs over complex ones, and have a good intuition for what will last and scale
  • Thrive in a collaborative environment involving different stakeholder and partners: we work closely with designers, product team, analysts and operational teams
  • Have a high quality bar, attention to detail, and helps teammates deliver polished products
  • Want to own end-to-end product experiences: product design, architecture, writing lots of code,
  • safely rolling out that code, and doing whatever is needed to ship products

Preferred Qualifications

  • Experience with startups
  • Prior experience with Javascript/Typescript, React, and SQL
  • Experience building Python APIs
  • Have a track record of building excellent products

  • We offer full benefits (medical, dental, and vision), a competitive salary and equity.
  • Resonance Companies is an equal opportunity employer and values diversity in our company. We do not discriminate based on race, religion, color, sex, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status, or any other basis covered by appropriate law. All employment is decided based on qualifications, merit, and business needs.

Salary.com Estimation for Senior Full Stack Application Engineer in York, NY
$122,761 to $155,841
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