Senior Backend Developer (Java / Spring Boot / Microservices)Agentic Dream • New York, New York, United States

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Senior Backend Developer (Java / Spring Boot / Microservices)

Agentic Dream

New York, New York, United States

New York, New York, United States

Über

We are seeking a Senior Backend Developer to join our growing engineering team responsible for building enterprise-grade, data-driven software solutions. The ideal candidate is a backend expert who thrives in designing scalable microservices, optimizing performance, and ensuring system security across distributed environments. This role involves ownership of backend architecture, API development, database design, and integration with modern cloud infrastructures — all within a high-impact, collaborative environment. Key Responsibilities Backend Development & Architecture Design, build, and maintain microservices using Spring Boot and Java 19, ensuring reliability, scalability, and maintainability. Develop and integrate RESTful and GraphQL APIs for internal and external use. Architect and implement multi-tenant systems, data isolation layers, and complex authorization mechanisms. Optimize database performance, schema design, and query efficiency in PostgreSQL environments. Implement event-driven architecture using AWS messaging services (SQS, SNS) or equivalent. Contribute to system-wide architecture and design reviews, proposing solutions for scalability and performance. Security & Compliance Implement and maintain secure authentication and authorization flows using OAuth2, JWT, and Spring Security. Ensure compliance with enterprise-grade security standards, including encryption, data privacy, and audit logging. Establish and monitor RBAC (Role-Based Access Control) and tenant-aware data security patterns. Performance & Reliability Conduct performance tuning, profiling, and load testing across services. Apply caching, asynchronous processing, and queuing patterns to handle large-scale traffic. Set up observability pipelines, including logging, monitoring, and alerting for production systems. Collaboration & Leadership Work closely with frontend, DevOps, and product teams to define APIs, integration flows, and release strategies. Participate in code reviews, mentor mid-level developers, and advocate for clean coding and design principles. Contribute to continuous improvement of engineering practices, automation, and CI/CD pipelines. Requirements Technical Expertise 5+ years of experience in backend software development using Java (preferably Java 17+). 3+ years of hands-on experience with Spring Boot in production-grade systems. Proven track record in microservices architecture design and maintenance. Proficiency in PostgreSQL and ORM frameworks (JPA / Hibernate 6.x). Strong background in API design — REST, GraphQL, OpenAPI (Swagger). Experience with AWS Cloud Services (S3, SQS, SNS) and Spring Cloud AWS integrations. Advanced Competencies Deep understanding of multi-tenancy architectures, schema management, and tenant isolation. Experience with event-driven systems, message queuing, and distributed transaction patterns. Knowledge of Domain-Driven Design (DDD), Clean Architecture, and enterprise integration patterns. Familiarity with Reactive Programming (Spring WebFlux) and API Gateway patterns (Spring Cloud Gateway). Strong focus on security: OAuth2, JWT, RBAC, and encryption best practices. Preferred Skills Experience with Flyway for database migrations. Familiarity with CQRS and event sourcing concepts. Exposure to containerized environments (Docker) and CI/CD automation (Jenkins, GitHub Actions, etc.). Understanding of GraphQL optimization, schema federation, and caching strategies.
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New York, New York, United States

Sprachkenntnisse

English

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