42dot

Senior Performance Engineer

42dot
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3 months ago
Sŏngnam, Korea, SouthSenior

Responsibilities

  • Define SLA/SLO performance goals during service design and propose performance-focused architecture.
  • Build CI/CD-based performance test automation and continuous validation systems.
  • Design and operate performance test scenarios for large-scale traffic and vehicle-data processing environments.
  • Analyze and improve performance bottlenecks across applications, databases, infrastructure, and networks.
  • Use AI-based tools to advance performance testing automation and analysis processes.
  • Forecast infrastructure capacity and establish cost-efficient scaling strategies as the business grows.
  • Collaborate with major platform development organizations including Gleo AI and App Market.

Requirements

  • At least seven years of backend development or performance engineering experience.
  • Experience with MSA-based service architecture and performance optimization.
  • Experience using performance testing tools such as k6, Locust, and JMeter.
  • Experience analyzing and tuning system performance across Linux, JVM, and databases.
  • Understanding of DevOps and CI/CD-based development environments.
  • Ability to communicate technical subjects effectively and collaborate with diverse stakeholders.
  • Preferred: experience operating and optimizing AWS services including EKS, RDS, and Kafka.
  • Preferred: experience building observability platforms with Datadog, Prometheus, or Grafana.
  • Preferred: experience optimizing large-scale data platforms or real-time messaging systems.
  • Preferred: experience with Chaos Engineering, resilience validation, FinOps, or AI-based development tools.

Benefits

  • A three-month probationary period may apply.
  • The interview process includes document screening, a coding test, video and/or in-person interviews, and compensation discussions.
  • Interviews may be conducted remotely or in person depending on the stage.
  • Veterans and individuals eligible for employment protection or disability employment support receive preference according to applicable law.
  • A reference check may be conducted with the applicant’s consent after the interview process.

Tech Stack

Apache JMeterApache KafkaAWSDatadogGrafanaLinuxPrometheus

Categories

42dot

About 42dot

501-1,000 employees

42dot builds software-defined vehicle and autonomous mobility platforms for automakers and mobility service providers. Its products include AI-driven vehicle software, data-based update services, and core platform components such as API gateways and identity/access management to connect services securely. The privately held company is headquartered in Seongnam-si, Gyeonggi-do, and focuses on transportation and automotive markets.

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