楽天モバイル株式会社の求人を41件掲載しています（2026年9月29日更新）。年間休日は平均123日です。新着順・年収が高い順・年間休日が多い順・残業が少ない順で並び替えられます。
「—」の項目はまだ収集していません。募集要項に書かれていないことを推測で 埋めることはしていないので、企業そのものの情報は公式サイトをご確認ください。
NEW5日前
The role designs, builds, operates, and troubleshoots Linux/RHEL infrastructure; securely operates Kubernetes; and manages authentication, secrets, certificates, and access control. It also covers security hardening, automation, incident response, and collaboration with network, cloud, security, and operations teams.
NEW5日前
The SOC Analyst (L2) works in the Cyber Defense Operations Section’s 24/7 Security Operations Center, helping evolve its defenses through AI-assisted threat hunting, incident response, and SOC capability improvements. The role investigates complex incidents, analyzes containerized and Kubernetes environments, develops team playbooks, and collaborates on detection logic and SIEM/SOAR improvements.
NEW5日前
Lead detection engineering for Cyber Defense Operations, building Detection-as-Code pipelines and AI/LLM-driven detection capabilities. The role includes implementing eBPF-based runtime monitoring, threat hunting and attack simulations, deception technologies, and integrating detection logic with SOAR.
NEW5日前
Design, implement, and improve network and cluster security for Kubernetes-based environments. The role also covers F5 traffic and application security, Cisco perimeter and access security, cloud security architecture, and incident and vulnerability management. It includes improving operational automation and standards, mentoring junior engineers, and collaborating with network, platform, development, SOC, and GRC stakeholders.
NEW5日前
Leads the 24/7 Security Operations Center team and the transformation toward an autonomous, AI-augmented defense organization. The role includes AI-driven detection and response, L3 incident escalation, Telco security monitoring, SOC governance, and support for DFIR efforts.
17日前
担当する事業部門のHRBPとして、現場のマネージャーや社員とコミュニケーションを取り、人・組織に関する課題を把握して解決を支援します。採用・配置・育成・評価などの人事施策を推進し、人事内の専門組織と連携して、担当組織に必要な施策の検討・実行を支援する役割です。
17日前
楽天モバイルおよび関連会社の人事組織で、経験や適性に応じて採用・労務・評価・人材育成・タレントマネジメント・給与・社会保険などの人事業務を担当します。人事制度や施策の運用、人事オペレーションの管理・改善、データ分析、各部門や楽天グループ内の人事組織との連携も行います。経験を活かせる領域から始め、将来的には人事施策の企画・改善やプロジェクト推進にも携わります。
17日前
楽天モバイルおよび関連会社の人事領域におけるマネージャーとして、担当領域の組織・チームマネジメントや人事戦略・施策の企画・実行を担います。メンバーの目標設定・評価・育成、業務改善、現場の人事・組織課題の解決支援、グループ内の関係部署との連携などを行います。
22日前
This position works with Rakuten Mobile sales representatives operating at global locations to negotiate with relevant ministries, agencies, and government-affiliated financial institutions to structure and execute projects. Responsibilities include project formation, preparing proposals to secure financial support, project management, budget and risk management, and reporting to relevant ministries and agencies.
22日前
This position performs accounting procedures for projects financially supported by Japanese government ministries, agencies, and government-affiliated financial institutions. Duties include accounting for supported expenses, monitoring fund usage, budget vs. actual management, management of grant-acquired assets, and responding to audits.
22日前
政府助成金プロジェクトを担当する各PMと各技術部門をつなぐ、技術領域横断のテクニカルプロジェクトマネージャーです。技術要件の集約・整理、6Gの動向調査と技術支援、関係者との技術的な折衝、提案書・報告書の作成、技術的課題の解決支援を含むプロジェクトマネジメントを担います。
22日前
This position works with Rakuten Mobile's globally operating sales representatives and negotiates with relevant ministries, agencies, and government-affiliated financial institutions to structure and execute projects. Duties include coordinating project formation, preparing proposals to secure financial support, managing funded projects, and reporting on project implementation and completion.
22日前
The HR Representative will drive talent development and organizational development for the mobile-related business. Responsibilities include planning and improving training programs, conducting organizational surveys and supporting improvement measures, and supporting performance appraisal, career development, and succession planning. The role also promotes English and Japanese language skills and plans initiatives to vitalize internal communication.
22日前
Develop and execute talent management strategies for the Rakuten Mobile business. The role includes managing internal mobility, promoting employee career development, optimizing talent management through data analysis, and reviewing organizational structures. It also involves self-assessment surveys, internal job posting, and employee movements within and outside the group, including overseas assignments.
22日前
Execute succession planning, performance improvement, and management development through evaluation operations. Design and operate HR systems for performance evaluation and compensation. The role supports organizational challenges within the performance management domain for Rakuten's rapidly growing mobile-related businesses.
22日前
As an HRBP, you will formulate and execute HR strategies for specific business divisions and lead general HR areas including organizational design, talent development, recruitment, performance and compensation systems, talent management, and labor management. The role is in the Mobile/RTS Human Resources Department, with an approximately 8-member RTS HRBP Group.
22日前
The Employee Relations Manager will support labor relations for Rakuten's mobile-related businesses. Responsibilities include revising regulations, submitting notifications to the Labor Standards Inspection Office, health and safety and health management tasks, and responding to employee inquiries and consultations. The role also involves collaborating with HRBPs and improving operations and processes.
22日前
The role manages Labor Relations work processes and improves operations and processes, including revising rules and regulations, applications to the Labor Standard Supervision Office, health and safety initiatives, and responding to employee inquiries. The work is often project-based and includes opportunities to gain experience in project management and project lead.
22日前
このポジションでは、総務省、経済産業省などの関係省庁や政府系金融機関の支援を受ける事業の会計手続きを担当します。支援対象経費の会計、資金使用状況のモニタリング、予実管理、補助金で取得した資産の管理、監査対応を行います。
24日前
法人向けサービスや、TOR、MBHに関わるNTTダークファイバ関連業務、及びNTT GCにおける工事管理・設計・構築業務を担当します。NW装置の物理設計から工事完了、安全品質管理までを行います。
24日前
The Senior Cyber Threat Hunter will proactively identify and mitigate advanced threats to strengthen Rakuten Mobile's cyber defense posture. The role develops and executes hypothesis-driven hunts, analyzes security data, and translates findings into actionable detection improvements while supporting incident investigation and containment.
24日前
Provide L2/L3 troubleshooting support for 5GC E2E operations and resolve technical issues across Core & Cloud. The role includes operational analysis, audits, change implementation, incident support, and collaboration with internal teams, partners, and vendors. The position is based in the Tokyo office.
24日前
Provides L2/L3 troubleshooting and technical support for 5GC end-to-end operations, resolving complex issues across core and cloud infrastructure. The role also conducts audits and technical analysis, verifies configurations, analyzes operational KPIs, and contributes to service and process improvements.
24日前
Design and develop container-based virtualization infrastructure for mobile communication systems. The role integrates hardware, operating systems, virtualization infrastructure software, and third-party components, and includes infrastructure automation, performance tuning, and implementing functionality to support stable and efficient service delivery.
24日前
岡山データセンターのフィールドエンジニアとして、データセンターの運用管理を担当します。監視部門からの要請によるモバイルネットワーク設備の保守や、収容図・設計図に基づく機器の搭載・配線などの構築業務を行います。4名程度のチームの一員として、2～3名でオンサイト作業に対応します。
24日前
Responsible for day-to-day data center operations and strategic build and decommissioning projects. The role includes service monitoring, incident and change management, capacity planning, vendor coordination, infrastructure design and procurement, and collaboration with cross-functional teams.
24日前
Rakuten MobileのArchitecture Review Boardで、AI/MLのアーキテクチャ設計・評価と、ネットワーク全体のAIガバナンスを担うポジションです。Tech SLMの構築、モデルやAI/MLインフラの評価、設計パターンや監視フレームワークの整備を行います。
24日前
The Customer Support SME leads strategic transformation initiatives and acts as the primary bridge between business and technology teams to deliver scalable, AI-enabled customer support solutions. The role assesses support operations and defines transformation roadmaps, technology recommendations, and business cases.
24日前
You will handle NTT dark fiber-related operations for corporate services, TOR, and MBH, along with construction management, design, and construction operations at NTT Building. As a Manager or Technical Leader, you will oversee work from physical network equipment design through construction completion, including safety and quality management.
24日前
As a core member of the Business Strategy team, the Strategist owns the end-to-end lifecycle of new business initiatives, from ideation to execution. The role covers opportunity discovery, market and competitive intelligence, business case development, partnership support, project delivery, and executive communication.
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