Senior Technical Systems Analyst​/Systems Engineer

Join a high-impact technology team developing cloud-native software platforms within a complex automotive environment. As a Senior Technical Systems Analyst / Systems Engineer, you will serve as a key technical bridge between Product Management, Software Engineering, and Project Management—transforming product vision into precise technical requirements, scalable system designs, and execution-ready delivery plans.

You will evaluate technical feasibility, author Technical Requirement Documents, define API contracts, map system dependencies, investigate integration issues, and support delivery through structured engineering processes and formal verification gates. This opportunity is ideal for a technically fluent systems professional who excels at turning ambiguity into actionable direction and guiding cross-functional teams from initial requirements through delivery.

• Translate product requirements into detailed Technical Requirement Documents, technical specifications, and execution plans.
• Define and review API specifications and contracts using REST, GraphQL, gRPC, OpenAPI 3.0, and Swagger.
• Create sequence diagrams, document system interactions, and map cross-module software dependencies.
• Evaluate technical feasibility, identify scope gaps, and surface assumptions, edge cases, and error scenarios before development begins.
• Collaborate with Product Managers to clarify requirements and align technical direction.
• Partner with Software Engineering teams on Agile planning, backlog execution, effort estimation, and delivery scheduling.
• Investigate integration test failures and system anomalies using logs, performance traces, and observability data.
• Support root-cause analysis and resolution efforts with backend and engineering teams.
• Help align software development activities with structured engineering processes and formal verification gates.
• Organize test results, verification artifacts, and evidence packages required for evaluation and release readiness.
• Maintain clear, accurate technical documentation throughout the software development lifecycle.

• Bachelor’s degree in Computer Science, Software Engineering, Systems Engineering, or a related technical field.
• At least five years of hands-on experience as a Systems Engineer, Technical Business Analyst, Solution Architect, Technical Program Manager, or similar professional supporting cloud-native software.
• Proven ability to translate product requirements into detailed technical specifications and Technical Requirement Documents.
• Strong knowledge of API specifications and integrations, including REST, GraphQL, and gRPC.
• Experience creating or reviewing API contracts using OpenAPI 3.0 and Swagger.
• Ability to create sequence diagrams, define system interactions, and map software dependencies.
• Experience conducting technical feasibility analysis and identifying scope ambiguities, assumptions, edge cases, and error conditions.
• Hands-on experience troubleshooting integration issues using logs, performance traces, and observability platforms such as Data Dog and AWS Cloud Watch.
• Experience with Jira, Confluence, Postman, Swagger, Jama Software, and AWS Cloud Watch.
• Strong understanding of software development life cycles, requirements management, testing, and release readiness.
• Strong analytical, documentation, communication, and problem‑solving skills.
• Business English fluency, both written and verbal.
• Ability to collaborate effectively with Product Management, Software Engineering, Project Management, and other cross‑functional stakeholders.

• Japanese language proficiency at JLPT N2 level or equivalent.
• Experience working with automotive…