Software Engineer (1785)

EMPLOYER: Keystone AI Inc. TITLE: Software Engineer LOCATION: New York, NY (Option to work remotely from any location in the U.S.) DUTIES: Write clean, maintainable code using modern programming languages and frameworks (e.g., Java, Spring Boot, React). Design and implement RESTful APIs and integrate third-party services as needed. Collaborate with team members through code reviews, pair programming, and architectural discussions. Optimize application performance and troubleshoot issues across development, staging, and production environments. Participate in agile ceremonies (stand-ups, sprint planning, retrospectives) and contribute to continuous delivery pipelines. EOE REQTS: Must have a Bachelor’s degree or foreign equivalent in Computer Science, Information Systems, Systems Engineering, or a related field plus five (5) years of experience in the position offered or a related position. Alternatively, employer will accept a Master’s degree or foreign equivalent in Computer Science, Information Systems, Systems Engineering, or a related field plus three (3) years of experience in the position offered or a related position. Employer will accept pre- or post- Master’s experience. Must have five (5) years (or three [3] years with a Master’s) of experience with all of the following: Designing and building large-scale, modular monolith architectures using Java and Spring Boot, with strict domain separation and multi-module layering; Utilizing Spring ecosystem, including Spring Data JPA, Spring Security, Spring Web, and transaction management; Developing secure RESTful APIs with JWT-based authentication and OAuth2 integration, focusing on input validation, exception handling, and idempotent operations; Performing frontend development with React, including component-based architecture, React Router, custom hooks, and state management; Integrating frontend and backend systems with efficient API contract design and performance optimization; Database schema management and version-controlled migrations using Liquibase, along with data layer optimization in PostgreSQL using both Spring Data and JDBC templates; Utilizing automated testing frameworks including JUnit, Mockito, and Cypress, with a focus on maintaining test coverage across the full stack; and Making architectural decisions that align with long-term business and technical goals. SALARY: $189,592 - $210,000 per year HOURS: 40 hours per week, Monday-Friday *The position is eligible for employee referral reward. #LI-DNI Benefits at Keystone AI Keystone AI recognizes and values that everyone has different needs, interests, and life goals. We built our benefits program with flexibility in mind to support you and your loved ones through a diverse range of circumstances and life events. These flexible offerings sit on a foundation of competitive compensation, health coverage, and time off. Learn more about Keystone AI’s benefits . We create inclusion and belonging through how we onboard, meet, connect, engage, and communicate. Learn more about diversity, equity, and inclusion at Keystone AI. At Keystone AI, we’re proud to be an equal opportunity employer. We realize the key to creating a company with a world-class culture and employee experience comes from who we hire and creating a workplace that celebrates everyone. With this, we proudly consider qualified applicants without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sexual orientation, pregnancy, sex, gender identity, gender expression, genetic information, physical or mental disability, HIV status, registered domestic partner status, caregiver status, marital status, veteran or military status, citizenship status or any other legally protected category. If you have a need that requires accommodation, let us know by completing our Accommodations for Applicants form .