Principal Architect (Golang/ Nodejs)

Job highlights

• . Bachelors or Masters degree in Computer Science,Software Engineering,or equivalent practical experience
• platform-level strategy and detailed technical problem solving . . Good to Have
• . Strong experience with

We are looking for a Principal Architect to provide architecture leadership for our Japan market engineering team supporting povo , KDDI's digital telecommunications platform.

As a Principal Architect, you will shape the overall technical vision and evolution of the povo platform , working horizontally across product and technology domains.

You will lead architecture for complex and strategic initiatives, connect business objectives with long-term platform direction, and ensure solutions remain scalable, resilient, maintainable, and cost-efficient.

You are expected to maintain strong engineering depth, stay close to implementation and production systems, and provide practical technical leadership from strategy through delivery.

You will also provide technical leadership across engineering teams, aligning them around shared goals, guiding execution of complex initiatives, and building a culture of ownership, collaboration, and engineering excellence.

Key Responsibilities

• Define and evolve the overall technology and architecture vision for the povo platform.
• Lead end-to-end architecture for the most complex, cross-domain, and strategic initiatives.
• Ensure individual solution designs align with the long-term platform roadmap and architecture principles.
• Act as a senior technical advisor to Engineering Leads, Architects, Product teams, and leadership.
• Drive architecture alignment across domains such as identity, subscriber management, billing, payments, promotions, provisioning, usage, plans, and SIM/eSIM .
• Own architectural engagement from early requirements and solution shaping through implementation and production readiness.
• Lead stakeholder discussions with Circles Product, Engineering, SRE, leadership, and KDDI technology stakeholders .
• Present solution options, trade-offs, risks, dependencies, and recommendations clearly to technical and non-technical audiences.
• Challenge short-term solutions that create unnecessary complexity, scalability limitations, or long-term platform risk.
• Drive platform modernization, architectural simplification, technical debt reduction, and adoption of reusable platform capabilities.
• Establish architecture patterns and standards across APIs, integration, data, messaging, resilience, security, and observability.
• Lead cross-functional engineering teams through complex initiatives, setting clear technical direction, aligning ownership, resolving dependencies, and driving delivery quality and production readiness.
• Coach and develop Architects, Engineering Leads, and senior engineers, strengthening technical judgment, ownership, collaboration, and their ability to lead independently.
• Remain hands-on through technical reviews, prototyping, troubleshooting, critical design validation, and complex production problems.

Job Requirements

;

• Bachelors or Masters degree in Computer Science, Software Engineering, or equivalent practical experience.
• 14+ years of software engineering experience , including significant architecture and technical leadership responsibility.
• Proven experience already working in an Architect, Principal Engineer, or equivalent architecture-focused role ; for large-scale production systems.
• Strong track record defining architecture and technical direction across multiple domains, teams, or major platform capabilities.
• Deep expertise in ; distributed systems, microservices, API architecture, asynchronous processing, messaging, and event-driven architectures .
• Strong hands-on engineering background with technologies such as ; Go and/or Node.js .
• Deep understanding of system design patterns including ; caching, rate limiting, idempotency, retries, concurrency, fault tolerance, and graceful degradation .
• Strong experience with relational and NoSQL databases, Redis, data ownership, and distributed data consistency.
• Strong understanding of ; cloud-native architectures, Kubernetes, CI/CD, and AWS or equivalent cloud platforms .
• Strong knowledge of scalability, performance, reliability, security, observability, and production architecture.
• Demonstrated ability to design systems serving ; high-volume, mission-critical workloads .
• Strong ability to evaluate architecture trade-offs across ; business value, engineering complexity, delivery speed, operational risk, scalability, and cost .
• Excellent stakeholder management and communication skills, including working with senior engineering, product, business, and external partner stakeholders.
• Proven ability to lead and influence multiple engineering teams without relying on direct reporting authority, building alignment, resolving disagreements, and driving shared outcomes.
• Demonstrated experience developing technical leaders and guiding geographically distributed teams through complex delivery challenges, ambiguity, and competing priorities.
• Ability to move comfortably between ; platform-level strategy and detailed technical problem solving .

Good to Have

• Strong experience with ; telecommunications or large-scale digital telco platforms .
• Knowledge across billing, charging, subscriber management, provisioning, identity, payments, promotions, or network integrations.
• Experience defining and executing multi-year platform modernization or architecture roadmaps.
• Experience evolving complex legacy platforms while maintaining business continuity.
• Experience with platforms serving millions of customers and high-volume transactional workloads.
• Experience operating in environments with multiple internal teams and large external enterprise partners.