Backend Engineer

Stash

New York, United States Posted October 10, 2026

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Remote Full-time Senior
Salary Range

$140,000 - $160,000

Job Description

Join our Accounts Team as a Backend Engineer, where you will play a crucial role in managing and enhancing our Core Banking System. You will design, develop, and maintain backend services, optimize and scale our system, and collaborate with cross-functional teams. This is a remote position with excellent benefits, including unlimited time off and a learning & development stipend.

  • Design, develop, and maintain backend services for the Core Banking System, ensuring performance, reliability, and scalability.
  • Architect and implement robust asynchronous workflows to process banking transactions efficiently, optimizing and scaling the system as it grows.
  • Collaborate with cross-functional teams to deliver seamless experiences, continuously deploying and monitoring services in a cloud-based environment.
  • Familiarity with cloud platforms (AWS)
  • A strong understanding of testing best practices, debugging, and profiling
  • Data-driven decision maker, willing to take risks, fail fast, and iterate at the speed of AI generation
  • Proficiency in working with relational and distributed databases, preferably CockroachDB, PostgreSQL, or similar
  • Excellent problem-solving skills and a mindset for continuous improvement
  • Strong proficiency in Go or Rails (or deep experience in another backend language with a willingness to learn Go)
  • Hands-on experience building highly scalable, fault-tolerant backend services
  • Experience working with event-driven, asynchronous architectures
  • 3 - 5 years of professional experience in backend software development
  • Understanding of banking or fintech-related systems
  • Familiarity with CI/CD pipelines, Terraform, and Datadog
  • Knowledge of multi-region architectures
Required Skills
collaboration cross-functional collaboration learning and development Amazon Web Services testing PostgreSQL problem solving process improvement Rails software development CI/CD Terraform Datadog
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