Join a dynamic backend engineering team building scalable services that support email security and enterprise messaging workflows. This remote W2 opportunity is a great fit for a Java engineer who enjoys solving complex problems, improving reliability, and contributing to high-performing distributed systems.

Responsibilities

• Design, build, and maintain backend services using Java and Spring Boot.
• Develop new features, enhancements, and bug fixes within an existing distributed application environment.
• Create and maintain automated unit and integration tests to support code quality and stability.
• Participate in code reviews and technical design discussions with cross-functional team members.
• Support database schema updates, data migrations, and related backend changes.
• Investigate and resolve production issues related to application behavior and data processing.
• Collaborate with technical and business partners to address pipeline and system issues.
• Contribute to the performance, scalability, and reliability of backend systems.

Skills

• 5+ years of professional backend software development experience with Java.
• Strong hands-on experience with Spring Boot and Spring Framework.
• Experience building and supporting distributed or event-driven applications.
• Experience developing RESTful APIs and backend services.
• Solid understanding of unit and integration testing practices.
• Experience troubleshooting production applications and resolving complex technical issues.
• Experience working with relational databases and supporting schema or data changes.
• Strong communication skills and the ability to collaborate effectively across teams.

Preferred Skills

• Experience with cloud platforms such as AWS, Azure, or GCP.
• Familiarity with messaging or event-streaming tools such as Kafka, RabbitMQ, or JMS.
• Experience with Docker and Kubernetes.
• Background working in security-focused or highly available production environments.
• Exposure to CI/CD pipelines and modern DevOps practices.
• Experience using agentic coding tools and collaborative development workflows.
• Knowledge of email processing, SMTP, MIME, or enterprise messaging concepts.
• Experience with SQL and familiarity with tools or technologies such as Elasticsearch, PostgreSQL, Gradle, OTEL, Azure, EventHub, or MS Graph API.

Horizontal is committed to fostering a diverse, equitable, and inclusive workplace where all team members feel respected, supported, and empowered to contribute. We welcome applicants from all backgrounds and experiences who are excited to do meaningful work in a collaborative environment.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.