Senior Backend Developer (Java)

At Umbrella, we’re building cutting-edge cloud cost optimization solutions that help global organizations manage and reduce their cloud spending efficiently.

We’re looking for a strong Senior Backend Developer (Java) to join our core R&D team and take full ownership of complex, large-scale backend projects.

This role is hands-on and perfect for someone who thrives in a fast-paced environment, loves solving hard problems, and has real-world experience working with large volumes of data.

What You’ll Do

• Design, develop, and maintain highly scalable backend services in Java.
• Build robust and efficient systems capable of handling large-scale data processing and migrations.
• Solve complex concurrency and multi-threading challenges in production systems.
• Occasionally contribute code in Python (for specific tools or integrations).
• Collaborate closely with DevOps, Product, and Data teams across the company.
• Take ownership of end-to-end projects, from concept through architecture, development, and deployment.
• Drive technical excellence, best practices, and innovation within the backend systems.
  
  

• 5+ years of hands-on backend development experience, primarily in Java.
• Strong understanding and practical experience with Big Data environments and large-scale data processing.
• Solid experience with multi-threaded programming, distributed systems, and performance optimization.
• Comfortable or open to occasional coding in Python (even if Python is not your primary language).
• Familiarity with microservices architecture, Docker, Kubernetes, and CI/CD workflows.
• Experience working in cloud environments (AWS, GCP, or Azure – advantage).
• Strong problem-solving abilities, analytical thinking, and proactive ownership.
• Excellent interpersonal skills and ability to work effectively in a collaborative environment.
  
  

• Practical experience working with language models (LLMs) or AI/ML tools (e.g., integrating LLMs like GPT into production systems).
• Experience with Kafka, Redis, or ElasticSearch.
• Familiarity with cloud cost optimization or FinOps domains.