Oscilar

Sr./Staff Backend Engineer - Java (Poland)

Oscilar
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4 months ago
Remote, PolandSenior / Staff+
H1B Sponsor

Responsibilities

  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS.
  • Collaborate with product management, frontend, and QA teams on technical requirements and platform integration.
  • Optimize existing services for performance, reliability, and maintainability.
  • Identify and resolve system bottlenecks and improve resource utilization and stability.
  • Implement code quality, testing, and deployment practices, including CI/CD pipelines.
  • Monitor backend service health and performance and mitigate potential issues.
  • Provide technical guidance and mentorship to junior team members.

Requirements

  • Bachelor's or master's degree in Computer Science, Software Engineering, or a related field.
  • At least 5 years of backend software development experience focused on Java and AWS.
  • Strong experience building and operating low-latency, high-scale services in distributed environments.
  • Proficiency in Java and its ecosystem and related frameworks.
  • Knowledge of microservices architecture, Docker, Kubernetes, Kafka, and ClickHouse.
  • Familiarity with RESTful API design and security best practices.
  • Experience with Jenkins, Git, Maven, and Gradle.
  • Strong problem-solving, attention to detail, independent work, teamwork, and written and verbal communication skills.

Benefits

  • Remote-first culture with the ability to work from anywhere.
  • Employer-covered comprehensive health, dental, and vision insurance for U.S. employees and dependents.
  • Unlimited paid time off.
  • Equity packages and a 401(k) are offered, with no specific compensation amount stated.
  • Family-friendly environment, regular team events, and offsites.
  • Professional development and learning opportunities.

Tech Stack

Apache KafkaAWSClickHouseDockerGitGradleJavaJenkinsKubernetesMaven

Categories

Oscilar

About Oscilar

201-500 employees

Oscilar powers real-time risk decisioning across fraud, credit, and compliance with a single, unified solution. Our no-code AI Risk Decisioning™ platform leverages agentic AI and advanced signal processing to analyze complex data, detect anomalies, and automate mission-critical decisions with speed and precision. Built by the team behind risk systems at Google, Meta, Uber, Citi, and J.P. Morgan, Oscilar combines deep technical expertise with cloud-native architecture to deliver scalability, transparency, and regulatory-grade performance.