Top Tech Jobs & Startup Jobs in Yokohama

Design and deliver high-performance backend platform features for a multi-tenant SaaS PaaS. Own microservice architecture, scalability, fault tolerance, and API contracts. Build services (gRPC/REST), use AWS managed services, ensure observability/resiliency, runbook/incident readiness, mentor engineers, participate in on-call/RCAs, and collaborate with product and recruiting.

Serve as the global subject-matter expert for the OPUS platform, creating and governing messaging, knowledge artifacts, and LLM-ready frameworks to enable executive buyer conversations, field enablement, and AI-driven experiences. Partner cross-functionally to translate technical capabilities into business value, curate a canonical platform knowledge library, and design prompt/patterns for consistent AI interactions.

Lead localization projects: review and prepare strings, verify i18n readiness, manage vendors and stakeholders, triage support tickets, provide translator context, monitor delivery, and propose process and tooling improvements.

Lead business development across APAC: source and close deals, build partner relationships, gather market insights, shape product direction with product and engineering, represent company at events, and manage BD pipeline and KPIs.

Create and deliver graphic, motion, and video assets for social, product campaigns, events, and brand touchpoints. Maintain brand consistency, collaborate cross-functionally, manage multiple deliverables, and use AI tools to accelerate creative workflows.

Design user-friendly web and mobile experiences by creating wireframes, user flows, mockups, and prototypes. Collaborate with product managers and developers to translate business and user requirements into intuitive interfaces and continuously optimize UX across projects.

Own the lifecycle of institutional staking and yield products, translating PoS consensus mechanics into B2B workflows. Drive cross-functional Agile delivery, integrate blockchains, design parsers/builders for smart contract ABIs, produce PRDs and high-fidelity Figma prototypes, and ensure MPC multisig compliance for yield actions.

Lead delivery of cost management services across construction projects from initiation to completion. Oversee cost planning, estimating, post-contract reporting, value engineering, risk and commercial management, stakeholder engagement, team development, and invoicing controls to meet budgetary and client objectives while driving business growth and governance.

The Contract Reviewer role involves reviewing contracts, providing legal advice, liaising with stakeholders, and supporting risk management processes within operational teams.

The Software Engineer will build data ingestion pipelines, manage cloud infrastructure, and collaborate on AI dataset roadmaps for model training operations.

Prepare and review corporate tax returns, declarations, and reporting packages; analyze and interpret tax laws; maintain tax records; prepare correspondence with tax agencies and auditors; and coach less experienced staff as needed to ensure accurate, timely tax compliance.

The Strategic Account Executive at Twilio will grow existing customers in Japan by developing strategies for up-sell and cross-sell, collaborating with stakeholders, and forecasting business opportunities.