Solution Engineer, Japan

Based in Tokyo, Japanese and Chinese bi-lingual speaker ****** Appcharge is a leading direct-to-consumer platform for app publishers.

We help publishers sell digital goods directly to their users - bypassing traditional app store commissions and owning the full payment and commerce experience.

The result: higher margins, better flexibility, and a more direct relationship with end users.

Backed by $89M from leading investors and operators, we’ve grown 14x in the past year and now process over a billion dollars annually. We’re building the infrastructure that lets modern app businesses take back control of monetization – at scale.

Role Overview: As a Solution Engineer, you’ll own the post-sales technical onboarding for our publisher partners, mainly in Japan and China . You’ll work closely with Business Development, Product, Engineering, and Account Management to ensure integrations are delivered efficiently, accurately, and with exceptional client experience. You’ll be the bridge between commercial success and technical execution - orchestrating integration plans, solving technical challenges, and ensuring every new publisher launches seamlessly on Appcharge.

Responsibilities:

• Own the technical implementation of publisher integrations - working directly with client engineering teams to set up SDKs, APIs, payments, storefronts, analytics pipelines, CRM hooks.
• Review publisher architectures and data flows to design optimal integration approaches aligned with Appcharge’s capabilities and best practices.
• Support and troubleshoot technical issues during onboarding, escalating to internal product/engineering teams as needed and ensuring issues are resolved quickly.
• Provide ongoing technical support after launch, including issue triage and escalation with reproducible evidence.
• Configure and validate integration environments (staging, sandbox and production), and manage configuration changes in line with internal approval processes, performing hands-on QA and verification of transaction flows and event tracking.
• Document and communicate technical requirements, ensuring both sides (publisher and Appcharge) share a common understanding of the implementation details.
• Contribute to improving integration tooling, SDKs, and documentation, feeding back learnings from real implementations to make future integrations faster and cleaner.
• Act as the technical counterpart to Account Management and Onboarding teams, ensuring they have clear visibility into integration status and blockers.
• Collaborate with the account manager to ensure a seamless and comprehensive onboarding process. This includes supporting the expansion of post-launch features to maximize DTC revenue for our publishers.

Requirements:

• Fluency in Japanese, Mandarin and English.
• Experience integrating with mobile game backends or payment systems.
• 4+ years of experience in technical integration, solutions engineering, or developer onboarding in SaaS, gaming, payments, or ad tech.
• Strong knowledge of APIs, SDKs, payment processing, webhooks, and authentication flows (e.g. token-based auth).
• Proven ability to read and debug code, logs, and network calls - not necessarily as a full-time engineer, but with enough fluency to work side-by-side with developers.
• Familiarity with mobile app stacks (iOS/Android), deep linking, and attribution integrations
• Excellent communication skills - able to translate between commercial priorities and technical realities.
• Strong interpersonal skills and a proactive approach to problem-solving.
• Highly autonomous and comfortable working with global teams across time zones.

Apply now: If you are a highly motivated and results-driven leader with a passion for the mobile gaming industry and a strong desire to make a significant impact in the Japanese & Chinese market, we encourage you to apply!