We are seeking a Principal Solutions Engineer to support enterprise payment platforms and digital solution integrations within a globally recognized fintech organization. In this client-facing technical role, you will partner closely with enterprise customers, sales teams, and regional stakeholders to guide API integrations, explain complex system architectures, and support enterprise solution implementations throughout the customer lifecycle.
This is an excellent opportunity for experienced professionals with expertise in API integration, SaaS platforms, payment systems, and enterprise architecture to work on large-scale digital transformation initiatives within an international business environment.
Key Responsibilities
- Lead technical client discussions to understand business requirements and recommend suitable enterprise solution architectures.
- Serve as the technical subject matter expert for payment platforms, API integrations, and enterprise digital solutions.
- Support enterprise clients with API onboarding, integration guidance, and implementation support.
- Translate technical documentation and specifications into client-friendly explanations for both technical and non-technical stakeholders.
- Collaborate with internal sales teams to support technical consultations and solution positioning activities.
- Respond to technical inquiries related to APIs, system integrations, implementation workflows, and enterprise connectivity.
- Work closely with regional and offshore teams to support technical enablement and issue resolution.
- Create and maintain technical documentation including architecture diagrams, integration guides, and solution materials.
- Conduct customer workshops, technical presentations, and enablement sessions.
- Stay updated on fintech trends, API technologies, SaaS platforms, cloud environments, and enterprise integration best practices.
Required Skills and Qualifications
Experience:
- 5+ years of experience in solutions engineering, technical consulting, systems integration, presales, or solution architecture.
- Experience supporting enterprise software, SaaS platforms, or API-based solution integrations.
- Strong understanding of REST and SOAP APIs, enterprise connectivity, and technical implementation processes.
- Experience participating in technical client discussions and implementation support activities.
- Experience reading and interpreting technical specifications and integration documentation.
- Experience supporting enterprise system integration or implementation projects.
- General understanding of cloud environments, operating systems, and programming concepts.
- Experience collaborating with regional or global technical teams.
- Experience working directly with enterprise clients in technical consulting or client-facing engineering roles.
- Bachelor's degree or equivalent professional experience in a related field.
Soft Skills:
- Strong communication skills with both technical and non-technical stakeholders.
- Ability to explain complex technical concepts clearly within client-facing environments.
- Strong analytical thinking and problem-solving capabilities.
- Ability to manage multiple priorities in fast-paced business environments.
- Collaborative mindset with strong stakeholder coordination and teamwork skills.
- Strong ownership mentality and accountability for customer success.
- Ability to quickly learn and adapt to complex technical solutions.
- Professional presentation and customer engagement abilities.
Language Requirements:
- Japanese: Fluent level preferred (JLPT N2 or above).
- English: Fluent business-level communication skills.
Preferred Skills & Qualifications
- Experience within payments, fintech, SaaS, or digital platform industries.
- Experience supporting payment gateway, merchant, or financial system integrations.
- Knowledge of cloud platforms such as AWS or Azure.
- Experience with enterprise architecture or technical solution design.
- Experience working within APAC-focused or international organizations.
- Experience with API testing tools or technical integration support activities.
About the Company
Our client is a globally recognized technology-driven organization delivering enterprise digital transaction platforms and payment solutions across international markets. The company continues to invest heavily in payment technologies, API ecosystems, digital innovation, and enterprise platform capabilities to support long-term growth and customer success.
This organization offers a highly international environment where professionals can work on enterprise-scale fintech solutions and collaborate with global technical stakeholders on strategic digital transformation initiatives.
Why You'll Love Working Here
- Work within a highly international and collaborative business environment.
- Partner with major enterprise clients on complex technical solution initiatives.
- Gain exposure to payment technologies, API integrations, enterprise SaaS platforms, and fintech ecosystems.
- Collaborate closely with regional and global engineering stakeholders.
- Play a key role in driving enterprise solution delivery within the Japan market.
- Strong long-term career growth opportunities within a globally established organization.
- Future leadership potential as the technical team continues to expand.
- Hybrid work arrangements supporting flexibility and work-life balance.
- Competitive compensation and comprehensive benefits package.
Don't Miss Out - Apply Now!
