Lead Developer(Full Stack Software Engineer)

【Job Description】

We are looking for a Principal Product Development Engineering professional with a track record of delivering enterprise-scale software solutions, driving engineering excellence, and leveraging emerging technologies to create business value. To be successful in this role, the candidate would require a balance of hands-on technical expertise and technical thought leadership across the software development lifecycle, including full-stack application development, cloud-native architectures, DevOps practices, Artificial Intelligence, and modern engineering frameworks.

The mission of this role is to accelerate business transformation through software engineering innovation, technical leadership, and adoption of emerging technologies, from solution design and architecture through production-grade implementation, ensuring scalable, secure, and reliable solutions that deliver business value to the enterprise.

Success in this role requires strong collaboration, communication, and problem-solving skills, with an emphasis on partnering with business stakeholders, product teams, architects, and engineering teams. This role will collaborate closely with business and technology partners to co-create solutions, navigate technical complexity, and establish engineering best practices across multiple initiatives.

The Principal Product Development Engineer serves as a senior technical leader and individual contributor within the organization. Besides contributing through hands-on development and architecture activities, this role influences engineering strategy, promotes technical excellence, and mentors engineers across teams. Ultimately, you are responsible for helping build a high-performing engineering organization that delivers scalable, secure, and innovative technology solutions through best practices, reusable frameworks, and AI-enabled development capabilities.

【Responsibilities】

• Design, develop, and deliver scalable, secure, and maintainable software solutions supporting business objectives.
• Lead all stages of the software development lifecycle, from solution design, architecture, and technical planning through development, testing, deployment, and production support.
• Solve complex business and technology problems using modern engineering practices, software design principles, and emerging technologies.
• Provide technical leadership and architectural guidance across multiple teams and products.
• Collaborate with business stakeholders, product owners, architects, and engineering teams to define requirements, align priorities, and deliver business value.
• Drive adoption of modern engineering practices, including cloud-native development, DevOps, platform engineering, and AI-assisted software development.
• Identify, evaluate, and implement emerging technologies, including Generative AI and intelligent automation solutions, to improve developer productivity, solution quality, and delivery efficiency.
• Contribute to application modernization initiatives, helping evolve legacy platforms toward scalable and maintainable technology solutions.
• Promote software engineering best practices, including code quality, design standards, automated testing, performance optimization, and security-by-design principles.
• Develop reusable frameworks, components, reference architectures, and engineering accelerators that improve consistency and delivery speed.
• Document and communicate technical solutions effectively to both technical and non-technical audiences.
• Mentor and support engineers through technical guidance, knowledge sharing, and coaching.
• Contribute to innovation, experimentation, proof-of-concepts, and continuous improvement initiatives.
• Performs other duties as assigned or required.

【Required Qualifications】

• Bachelor's degree in computer science, information technology, engineering, or equivalent educational qualification.
• 10+ years of relevant experience in software engineering, application development, or related disciplines with delivered business results.
• Proven record of delivering complex enterprise software solutions and technical initiatives across multiple teams and business domains.
• Strong experience in full-stack application development, including front-end, back-end, API, and database technologies.
• Proven expertise in software architecture, object-oriented design, design patterns, and modern engineering principles.
• Experience designing and developing scalable, resilient, and secure applications in enterprise environments.
• Experience working with large and complex business applications, distributed systems, microservices architectures, cloud-native solutions, and third-party integrations.
• Strong programming expertise in one or more languages such as Java, C#, Python, JavaScript, TypeScript, or similar technologies.
• Experience with modern front-end frameworks, API development, integration patterns, and service-oriented architectures.
• Familiarity with cloud platforms (Azure, AWS, GCP) and cloud-native engineering practices.
• Experience with CI/CD, DevOps, DevSecOps, automated testing, and modern software delivery methodologies.
• Awareness of Software Development Lifecycle (SDLC), release management, environment management, application monitoring, operational support, and software quality practices.
• Demonstrated ability to provide technical leadership and influence engineering direction without direct managerial authority.
• Demonstrated ability to evaluate and adopt emerging technologies to improve software quality, engineering productivity, and business outcomes.
• Strong analytical, troubleshooting, and structured problem-solving skills.
• Excellent communication, collaboration, storytelling, and presentation skills.
• Strong partner and stakeholder engagement experience across business and technology organizations.

【Preferable】

• Banking, Financial Services, and Insurance domain knowledge.
• Experience with cloud-native architectures, microservices, containerization technologies, and Kubernetes.
• Experience with Generative AI platforms, Large Language Models (LLMs), AI agents, prompt engineering, or enterprise AI frameworks.
• Experience implementing AI-assisted software development practices, developer copilots, intelligent automation, or engineering productivity solutions.
• Experience designing and implementing reusable engineering platforms, shared services, or developer enablement capabilities.
• Experience leading application modernization and digital transformation initiatives.
• Experience with Azure services and Microsoft development technologies.
• Experience working in Agile product delivery organizations across multiple teams.
• Evidence of technical thought leadership (publications, speaking engagements, open-source contributions, patents, or internal innovation).
• Relevant certifications in cloud platforms, software architecture, artificial intelligence, or software engineering disciplines.

【Language】

• Japanese: Business
• English: Business