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Astroscale

On-orbit satellite servicing and debris removal

IT Infrastructure Specialist

System AdministrationConfirmed live in the last 24 hours
Full-timeSumida City, Tokyo, JapanNo salary listedHybrid

About the Job

Requirements

  • A bachelor's degree or above in IT Engineering, Computer Science, or a related subject.
  • At least 5 years of relevant experience in IT infrastructure, system administration, or network engineering.
  • Business-level bilingual proficiency in English and Japanese, both written and spoken.
  • Strong experience managing Linux environments, including building, deploying, software management, and reporting.
  • Hands-on experience with Amazon Web Services EC2, VPC, IAM, CloudWatch, and storage services.
  • Solid understanding of TCP/IP, DNS, DHCP, VPN, firewalls, and switch management.
  • Practical experience with Proxmox VE or an equivalent hypervisor platform.
  • Proficiency in Bash and/or Python for automation and operational tooling.
  • Strong communication, documentation, and cross-functional collaboration abilities.

Responsibilities

  • Configure, modify, and optimize on-premises and cloud-based infrastructure.
  • Perform hands-on Linux administration, including installation, configuration, patching, package management, systemd services, scheduled tasks, process and resource monitoring, permissions, storage, networking, log analysis, and command-line troubleshooting.
  • Administer AWS resources, including EC2 instances, VPCs, subnets, route tables, security groups, IAM roles and policies, CloudWatch monitoring, S3/EBS storage, and DNS configuration.
  • Manage TCP/IP networking, DNS, DHCP, VPN configurations, firewall rules, switch configurations, and network troubleshooting across on-premises and cloud environments.
  • Operate and maintain Proxmox VE clusters, including ZFS storage management, VM/LXC provisioning, high-availability configuration, backups, and cluster health monitoring.
  • Maintain Prometheus and Grafana monitoring stacks, define alert thresholds, create dashboards, and perform log analysis for proactive issue detection.
  • Implement automated patching, manage access controls, enforce security best practices, and coordinate vulnerability remediation across systems.
  • Design, execute, and validate backup strategies for on-premises and cloud infrastructure to ensure recovery objectives are met.
  • Document architectures, standard operating procedures, runbooks, and maintenance schedules for managed infrastructure.
  • Coordinate incident response and root-cause analysis for infrastructure outages and performance issues.
  • Partner with engineering, operations, and mission teams to provision, modify, and troubleshoot infrastructure supporting their workflows.

Desired Qualifications

  • Extensive experience using Terraform for infrastructure-as-code provisioning and Ansible for complex configuration management.
  • Exposure to Docker, container platforms, or Kubernetes in environments where they support infrastructure services.
  • Practical understanding of Site Reliability Engineering concepts, including service-level indicators and objectives, error budgets, capacity planning, and reliability metrics.
  • Experience supporting AI/ML workloads, GPU passthrough, or local large language model deployment environments.
  • AWS certifications such as Solutions Architect, SysOps Administrator, or equivalent.
  • Previous technical leadership, mentoring, or on-call coordination experience.

About the Company

Astroscale

On-orbit satellite servicing and debris removal

Astroscale provides on-orbit satellite servicing to extend mission lifetimes and reduce space debris. Its offerings include End-of-Life services (ELSA-d and ELSA-M) to capture and de-orbit defunct satellites, Active Debris Removal (ADRAS-J) to approach and inspect debris, Life Extension (LEXI) for in-orbit refueling planned for 2026, and in-situ space situational awareness (ISSA) to monitor the space environment. It enables docking plates attached pre-launch to allow future servicing or removal, serving governments (JAXA, UK Space Agency, ESA) and commercial operators (Eutelsat, OneWeb). Its goal is to create a sustainable space environment by enabling safe rendezvous, servicing, and debris removal in low Earth orbit and geostationary orbit and by shaping regulations for responsible space activity.

Company size
201-500
Company stage
IPO
Headquarters
Tokyo, Japan
Founded
2013

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