Oscilar

Senior Backend Engineer – Java

Oscilar

full-time

Posted on:

Location Type: Remote

Location: Poland

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Job Level

Senior

Tech Stack

AWSDockerGradleJavaJenkinsKafkaKubernetesMavenMicroservices

About the role

  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies.
  • Collaborate with the product management, frontend, and QA teams to define technical requirements and ensure smooth integration with other components of the platform.
  • Optimize and enhance existing services to achieve maximum performance, reliability, and maintainability.
  • Identify and resolve bottlenecks in the system, ensuring optimal resource utilization and system stability.
  • Implement best practices for code quality, testing, and deployment, including continuous integration and continuous deployment (CI/CD) pipelines.
  • Proactively monitor the health and performance of backend services, taking necessary actions to 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.
  • 5+ years of experience in backend software development, with a focus on Java and AWS technologies.
  • Strong experience in building and operating low latency, high scale services in a distributed environment.
  • Proficient in Java programming, with a deep understanding of its ecosystem and related frameworks.
  • Knowledge of microservices architecture, containerization technologies (Docker, Kubernetes), and distributed data systems (Kafka, Clickhouse).
  • Familiarity with RESTful API design, and a strong understanding of security best practices.
  • Experience with CI/CD tools (Jenkins, Git, Maven, Gradle) and agile development methodologies.
  • Excellent problem-solving skills, attention to detail, and a strong ability to work independently or as part of a team.
  • Strong communication skills, both written and verbal.
Benefits
  • Compensation: Competitive salary and equity packages, including a 401k
  • Flexibility: Remote-first culture — work from anywhere
  • Health: 100% Employer covered comprehensive health, dental, and vision insurance with a top tier plan for you and your dependents (US)
  • Balance: Unlimited PTO policy
  • Technical: AI First company; both Co-Founders are engineers at heart; and over 50% of the company is Engineering and Product
  • Culture: Family-Friendly environment; Regular team events and offsites
  • Development: Unparalleled learning and professional development opportunities
  • Impact: Making the internet safer by protecting online transactions
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
JavaAWSlow latency serviceshigh scale servicesmicroservices architectureDockerKubernetesRESTful API designCI/CDagile development methodologies
Soft Skills
problem-solvingattention to detailindependent workteam collaborationcommunication
Certifications
Bachelor's degree in Computer ScienceMaster's degree in Software Engineering