Java developer

Job Description:

Join our Belfast PPS Engineering team and help modernize Proofpoint’s flagship Email Security platform, a mission‑critical service relied upon by many of the world’s largest enterprises. You’ll work across cloud‑native backend systems, distributed architectures, and high‑throughput security pipelines, contributing to initiatives that shape the next generation of our platform.

This role suits engineers who are adaptable, curious, and motivated to work across multiple technologies to deliver high‑performance solutions.

Your Day-to-Day

As a Software Engineer, you will:

• Build and enhance backend services while contributing to the cloud‑modernization of our large‑scale, containerized and distributed email security platform.
• Develop clean, maintainable code primarily in Java, and Perl components where needed.
• Design and implement APIs and backend components, including data ingestion and processing pipelines.
• Work with event‑driven, streaming, and asynchronous processing architectures.
• Collaborate closely with Product, QA, SRE, and other engineering teams.
• Own and improve CI/CD pipelines to support reliable builds, testing, and deployments.
• Participate in an on‑call rotation to help maintain system reliability.
• Take initiative, learn new technologies, and drive improvements across the platform.

What You Bring to the Team

• Strong experience in Java, with flexibility to work across additional technologies as needed.
• Experience with CI/CD tooling and deployment workflows.
• Experience or strong interest in distributed or stateful systems in cloud‑native environments.
• Experience with AWS or similar cloud platforms.
• Experience with Kubernetes or other container orchestrators.
• Familiarity with event‑driven messaging patterns or real‑time streaming data processing.
• Familiarity with caching or data stores (e.g., Redis).
• Focus on building maintainable, high‑performance, and scalable systems.
• Proactive, self‑directed, and strong problem‑solving skills.
• Effective communication and collaboration with cross‑functional teams.

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