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Salary: USD 140,000 - 160,000 / annual
Stash is a venture-backed fintech company democratizing wealth creation through education, advice, and products that help customers achieve greater financial freedom. The company is leveraging AI and emerging technologies to move faster and operate more efficiently.
As a Backend Engineer III on the Accounts Team, you will play a pivotal role in managing and enhancing Stash's Core Banking System. The system is built using Go with a robust asynchronous architecture and CockroachDB as the primary database. You will work on designing, developing, and maintaining backend services that power banking infrastructure for everyday Americans.
Key responsibilities include:
- 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
- Optimize and scale the system as the company continues to grow, ensuring high availability and security
- Act as an "Agent Conductor" to architect, design, and rapidly implement services by leveraging AI coding assistants
- Collaborate with cross-functional teams, including operations and infrastructure teams, to deliver seamless experiences
- Continuously deploy and monitor services in a cloud-based environment
- Debug, test, and document code to ensure high-quality software development
This position operates on a hybrid schedule, requiring you to be on-site in the New York office at least three days per week to work with stakeholders and foster team collaboration.
Requirements:
- 3–5 years of professional experience in backend software development
- Strong proficiency in Go or Rails (or deep experience in another backend language with a willingness to learn Go)
- Experience working with event-driven, asynchronous architectures
- 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
- Hands-on experience building highly scalable, fault-tolerant backend services
- Strong understanding of testing best practices, debugging, and profiling
- Familiarity with cloud platforms (AWS)
- Excellent problem-solving skills and a mindset for continuous improvement
Desirable qualifications (Gold Stars):
- Knowledge of multi-region architectures
- Familiarity with CI/CD pipelines, Terraform, and Datadog
- Understanding of banking or fintech-related systems
