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Mend.io

Senior Java Developer – Index Team

Mend.io

Senior Java Developer designing and developing scalable backend systems for Mend.io's AI Native AppSec Platform. Engaging in data management, complex integrations, and innovation in application security.

Posted 5/13/2026full-timeRemote • 🇵🇱 PolandSeniorWebsite

Tech Stack

Tools & technologies
AWSCloudJavaKafkaPostgresRabbitMQSQL

About the role

Key responsibilities & impact
  • Lead the design and development of scalable, high-performance backend systems from concept to deployment.
  • Develop solutions for processing, storing, and analysing data at scale.
  • Optimize application performance and ensure the reliability of services running in a cloud-native environment.
  • Design and maintain complex databases, ensuring data integrity and query efficiency across relational and non-relational systems.
  • Manage and implement multi-system integrations, handling high levels of complexity and technical interdependencies.
  • Work closely with cross-functional teams to define project objectives and participate in rigorous code reviews to maintain high quality.
  • Stay current with emerging technologies and trends to ensure Mend.io remains at the forefront of the industry.

Requirements

What you’ll need
  • 4+ years of experience with the Java language, including experience with multithreading, concurrency, and performance optimization,
  • 6+ years of experience in software development,
  • Experience with SQL backend, preferably PostgreSQL,
  • Experience with Kafka/RabbitMQ,
  • Experienced with AWS and CI/CD pipelines,
  • Experience with AI tools (i.e. Cursor AI or Claude),
  • Ability to take tasks from requirements to deployment quickly and independently,
  • Ability to work within distributed, multidisciplinary teams,
  • Design and build scalable, high-availability mission-critical systems and APIs,
  • Experience with test-driven development.

Benefits

Comp & perks
  • Collaborative workplace
  • Empowering environment

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
Javamultithreadingconcurrencyperformance optimizationSQLPostgreSQLKafkaRabbitMQAWSCI/CD
Soft Skills
independencecollaborationproject managementcode reviewadaptability