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Senior Backend Software Engineer

zoolatech.com Logo

Zoolatech

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IT - Software Development

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Salary:

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Job Description:

This is a long-term project for a major player in the online job and career marketplace industry. The team is focused on building scalable and reliable services to support high-traffic applications that help millions of users find the right job. The project already exists and is in a stable yet constantly evolving phase, requiring strong engineers to drive improvements and new features.

Job Responsibility:

  • Design and develop scalable, maintainable backend services using Java + Spring Boot
  • Build high-quality RESTful APIs to support frontend experiences and internal workflows
  • Improve service reliability, performance, and code quality across the backend ecosystem
  • Collaborate closely with product, design, and frontend engineering to deliver cohesive experiences
  • Participate in architecture reviews, code reviews, and solution brainstorming
  • Troubleshoot complex backend issues across distributed systems
  • Contribute to integrating AI-powered features, ensuring services can support LLM-driven or intelligent user experiences

Requirements:

  • 5+ years of backend engineering experience with production-grade systems
  • Expert proficiency in Java, Spring Boot, Gradle, and microservices
  • Strong RESTful API design skills and understanding of API lifecycle best practices
  • Proficiency with relational databases (e.g., PostgreSQL, MySQL) or similar
  • Experience in distributed systems, fault-tolerant service design, and performance tuning
  • Strong communication skills and a collaborative mindset
  • AI Fluency: ability to work with AI-driven requirements, integrate LLM-based workflows, understand API patterns for AI services, and build backend features that support AI-enabled product experiences

Nice to have:

  • Experience with asynchronous messaging (Kafka, RabbitMQ) or event-driven design
  • Familiarity with GraphQL, API gateways, or hybrid API ecosystems
  • Exposure to LLM/AI APIs (OpenAI, Anthropic, etc.) or developing AI-enhanced features
  • Prior remote contracting or cross-functional leadership experience
What we offer:
  • Paid Vacation
  • Sick Days
  • Floating Holidays
  • Sport/Insurance Compensation
  • English Classes
  • Charity
  • Training Compensation

Additional Information:

Job Posted:
January 04, 2026

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