Lead Full Stack Software Engineer (Mgr.or Assist. Mgr)_CSO Policy Servicing Team (Japan)

Description and Requirements
(Recruiter:Shibata)
The Customer Services Operations (CSO), Policy Servicing Integration Team manages the integration ecosystem that enables communication between core policy systems and enterprise applications. The team works across business processes, API development, cloud infrastructure, and enterprise integration technologies to deliver scalable and reliable solutions.
The ideal candidate is a Bilingual Business System Analyst (BSA) / Solution Specialist with the ability to translate business requirements into technical solutions while possessing strong knowledge of APIs, cloud-native architectures, system integrations, solution design, and AI-driven ways of working. This role requires close collaboration with business stakeholders, architects, and engineering teams to drive successful delivery of integration initiatives, while utilizing Generative AI and AI-assisted practices to improve requirements analysis, solution design, knowledge management, and overall delivery efficiency.

Provide technical leadership and guidance to the team on solution design, integration architecture, API development, and engineering best practices in Agile Development.

Perform code reviews to ensure code quality, maintainability, security, and adherence to enterprise standards.

Partner with business stakeholders, product owners, architects, and engineers to translate business requirements into scalable technical solutions.

Lead requirements gathering, solution analysis, impact assessments, and specification management activities.

Design and document APIs, interface contracts, data mappings, and integration workflows across multiple platforms.

Support architecture discussions and ensure solutions align with enterprise architecture, security, compliance, and operational standards.

Provide expertise in cloud technologies, infrastructure, scalability, integration patterns, and AI-driven engineering practices to enable efficient, scalable, and innovative solution delivery..

Mentor team members and provide functional and technical guidance throughout development, testing, deployment, and production support.

Act as the subject matter expert for Policy Servicing Integration and serve as the primary liaison between business and technology teams.

Lead root cause analysis and support the resolution of production issues across applications, APIs, and enterprise integrations.

• API design and integration technologies (REST APIs, OpenAPI/Swagger, JSON, XML)
• Cloud platforms and services (Azure) with knowledge of cloud-native architectures.
• Enterprise integration patterns, middleware technologies, and distributed systems.
• Microservices architecture and event-driven integration solutions.
• CI/CD, DevOps, release management, and software delivery lifecycle practices.
• Application monitoring, logging, observability, and proactive operational support.
• Security best practices, authentication and authorization mechanisms (OAuth, JWT, SSO).
• Vulnerability management, security remediation, dependency upgrades, and compliance support.
• System stability, reliability, resiliency, and performance optimization for business-critical applications.
• Database technologies, data modeling, and integration fundamentals.
• System interoperability, distributed application architecture, and cross-platform integrations.
• Strong troubleshooting, root cause analysis, and production support experience.
• Ability to utilize Generative AI, Prompt Engineering, Copilot technologies, and AI-assisted engineering practices to improve productivity, accelerate solution delivery, enhance decision-making, and drive continuous innovation across the software development lifecycle.

English (Business Level/Native)
Japanese (Native/N2 or equivalent able to speak/understand Business/Technical conversation)
Strong experience in working with large scale system integrations and Modernization will be a plus.
Having a strong technical background but wanted to move into Business System Analyst roles would be an ideal match.
CBAP/CCBA (Optional)
Azure Developer/Solution Certification (Plus)
Join a highly collaborative team where business and technology professionals work together to deliver impactful solutions across the organization. This role offers the opportunity to partner with business stakeholders, architects, and engineers, contribute to key technology decisions, and drive meaningful outcomes for customers and the business.
The team fosters a culture of collaboration, innovation, continuous learning, and ownership, while embracing AI-driven ways of working to improve productivity, accelerate solution delivery, and enhance decision-making. You will have opportunities to leverage modern technologies, including cloud platforms, APIs, enterprise integrations, and AI-powered tools, while continuously expanding your technical and leadership capabilities.
This is an ideal role for individuals who enjoy solving complex challenges, sharing knowledge, mentoring others, and growing in a supportive, forward-thinking environment that encourages experimentation, innovation, and professional development.
福利厚生
メットライフ生命では、ワークライフバランスと社員の心身の健康を促進する福利厚生を提供しています。社員はフレックスタイム制度、年次有給休暇、特別連続休暇、リフレッシュ休暇等の休暇を利用できます。また、社会保険や団体保険の他、旅行や英会話教室で使える割引も提供しています。柔軟に働けるよう、オフィス勤務と在宅勤務を組み合わせた勤務形態の導入や、短時間勤務制度、また柔軟性のあるドレスコードなども設けています。
Benefits We Offer
MetLife Japan offers a comprehensive benefits package that promotes work-life balance and employee wellbeing. Employees can take advantage of flex time policy and a generous time-off policy, national holidays, annual paid leave, special consecutive leave, and refreshment leave. We also provide full social insurance coverage, a commuting expense reimbursement, group insurance, and discounts on travel and English language lessons. To support work flexibility, employees also have hybrid work options, shortened working hours for parents with children in third grade or below, and a casual dress code.
メットライフについて
メットライフは、グローバルで展開する金融サービス企業です。個人および法人のお客さまがより確かな未来を築けるよう、保険、年金、社員福利厚生給付、資産管理のサポートを提供しています。1868年に創業したメットライフは、世界40以上の市場で事業を展開し、米国、アジア、中南米、ヨーロッパ、中東において業界をリードしています。
メットライフ生命は、日本初の外資系生命保険会社として、1973年2月に国内での営業を開始しました。当社のPurpose「ともに歩んでゆく。よりたしかな未来に向けて。」は、メットライフが誇るグローバルネットワークと世界中のベストプラクティスを活かし、お客さまのニーズに応え、地域社会との信頼関係を築くという信念を表しています。
メットライフは、New Frontier戦略の一環として、AIを活用し、人を中心に据えた未来を築いています。私たちは、AIを活用して顧客へのサービス向上、地域社会への支援、そして働き方の変革を推進していく中で、好奇心、適応力、そして成長意欲を持つ人材を求めています。メットライフにおいて、AIは、人間の判断力、創造性、継続的な改善を支える責任あるパートナーであり、信頼、インクルージョン、そして長期的な価値の構築に貢献しています。About MetLife
About MetLife
MetLife Inc., through its subsidiaries and affiliates (MetLife), is one of the world's leading financial services companies, providing insurance, annuities, employee benefits and asset management to help individual and institutional customers build a more confident future. Founded in 1868, MetLife has operations in more than 40 markets globally and holds leading positions in the United States, Asia, Latin America, Europe and the Middle East.
As part of our New Frontier strategy, MetLife is building an AI-enabled, people-centered future. We're looking for people who bring curiosity, adaptability, and a growth mindset as we use AI to enhance how we serve customers, support communities, and evolve the way work gets done. At MetLife, AI is a responsible partner that supports human judgment, creativity, and continuous improvement while helping us build trust, inclusion, and long-term value.
MetLife Japan began operations in February 1973 as Japan's first foreign-owned life insurance company. Our purpose, "Always with you, building a more confident future," encapsulates our strong commitment to leveraging our global network and best practices worldwide to stand with our customers and build trust with our communities.
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