Java Backend Developer

Photon; Dallas (TX); On-site; USD 120,000 - 150,000; Full time

Job summary

Photon is seeking a highly skilled Java Backend Developer with 7+ years of experience to design, develop, and scale mission-critical backend services. You will build robust microservices and real-time event-processing systems in a cloud-native environment, leveraging distributed systems patterns and event-driven design.

The role focuses on designing scalable microservices with Spring Boot, integrating Kafka for streaming, and deploying on AWS with containerized infrastructure.

Qualifications

• Must have 7+ years of professional Java backend development experience.
• Strong experience with Spring Boot ecosystems and microservices.
• Proficiency with Kafka for real-time event processing.

Responsibilities

• Design, develop, and scale microservices in Java/Spring Boot.
• Build event-driven architectures using Apache Kafka.
• Create secure, versioned RESTful APIs for internal and external use.

Skills

Java

Spring Boot

Kafka

AWS

Microservices

REST APIs

Docker & Kubernetes

Tools

Docker

Kubernetes

CI/CD pipelines

Job description

We are seeking a highly skilled Java Backend Developer having 7+years of experience to design, develop, and scale mission-critical backend services. In this role, you will be responsible for building robust microservices and real-time event-processing systems that handle complex business logic and high-volume data streams. The ideal candidate thrives in a cloud-native environment and has a deep understanding of distributed systems and event-driven patterns.

Key Responsibilities

• Microservices Development: Design and implement scalable, high-performance microservices using Java and the Spring Boot ecosystem.
• Event-Driven Architecture: Architect and maintain event-driven systems utilizing Apache Kafka for seamless asynchronous communication and real-time event processing.
• API Design: Develop and document secure, versioned RESTful APIs to support internal services and external integrations.
• Business Logic Implementation: Translate complex functional requirements into efficient business rules and logic within the application layer.
• Cloud Infrastructure: Deploy and manage containerized applications on AWS EKS (Elastic Kubernetes Service), ensuring optimal resource utilization and high availability.
• System Integration: Integrate backend components with various AWS services to enhance scalability, storage, and monitoring capabilities.
• Quality & Performance: Write clean, maintainable, and well-tested code while performing regular performance tuning and troubleshooting of distributed systems.

Required Technical Skills

• Core Languages: Proficiency in Java (JDK 11+).
• Frameworks: Extensive experience with Spring Boot (Spring Cloud, Spring Security, Spring Data).
• Messaging & Streaming: Hands-on experience with Apache Kafka, including producers, consumers, and Kafka Streams.
• Cloud & Orchestration: Proven experience with AWS services, specifically AWS EKS, EC2, S3, and IAM.
• Architecture: Strong understanding of Microservices architecture and Event-Driven Architecture (EDA).
• Web Services: Expert knowledge of REST API design principles and JSON/XML.
• Database & Logic: Experience managing event processing workflows and implementing complex business rules engines.
• DevOps Tools: Familiarity with Docker, Kubernetes, and CI/CD pipelines.

Preferred Qualifications

• Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, or DynamoDB).
• Understanding of distributed tracing and monitoring tools (e.g., Prometheus, Grafana, or AWS CloudWatch).
• Knowledge of reactive programming or functional programming patterns in Java.
• Background in designing systems for financial services or high-frequency data environments.