Bilingual Software Engineer - Backend / Full Stack

Software Engineer (Backend / Full Stack) Location: Tokyo, Japan Employment Type: Full-time Language: Japanese (N2+), English (Business Level Preferred) About the Role We are partnering with a range of fast-growing AI, SaaS, and technology companies in Tokyo that are looking for Software Engineers to join their engineering teams. This opportunity is suitable for engineers with experience in backend, or full-stack development who are interested in building scalable products, modern web applications, and innovative technology solutions. Successful candidates will have the opportunity to work on products used by businesses and consumers, collaborate with international teams, and contribute to the development of cutting-edge digital services. Key Responsibilities Software Development Design, develop, test, and maintain web applications and software systemsDeliver high-quality, scalable, and maintainable codeDevelop new product features and enhance existing functionalityBuild APIs and integrations with internal and external systemsOptimize application performance, security, and reliability System Design & Architecture Participate in technical design discussionsContribute to architecture decisions and system improvementsDesign scalable solutions that support business growthEvaluate and implement appropriate technologies and tools Collaboration Work closely with Product Managers, Designers, and other EngineersParticipate in Agile development processes including sprint planning, reviews, and retrospectivesConduct code reviews and support knowledge sharing within the teamCommunicate effectively with local and international stakeholders Continuous Improvement Identify areas for technical improvement and process optimizationStay current with emerging technologies and industry trendsContribute to engineering best practices and development standards Required Qualifications Minimum 2 years of professional software development experienceExperience with frontend, backend, or full-stack developmentStrong understanding of software engineering principles and best practicesExperience working with relational or NoSQL databasesExperience using Git and modern development workflowsJapanese language proficiency at JLPT N2 level or aboveStrong problem-solving and communication skillsAbility to work effectively within a team environment Preferred Qualifications Native-level JapaneseBusiness-level EnglishExperience developing SaaS productsExperience building cloud-native applicationsExperience working in Agile or Scrum environmentsExperience with microservices architectureKnowledge of AI, Machine Learning, or Data-related technologiesExperience mentoring junior engineers Preferred Technology Stack Candidates may have experience with some of the following technologies: Backend PythonJavaGoC#Node.js Frontend ReactVue.jsAngularTypeScriptJavaScript Cloud & Infrastructure AWSAzureGoogle Cloud Platform (GCP)DockerKubernetes Database PostgreSQLMySQLMongoDBRedis Ideal Candidate We are looking for engineers who: Have a solid foundation in software developmentAre interested in AI, SaaS, and digital product developmentEnjoy solving complex technical challengesCan work effectively in multicultural environmentsAre open to learning new technologies and business domainsWant to contribute to high-growth technology companies in Japan What We Offer Competitive compensation packagesHybrid and remote work opportunities depending on the companyInternational and multilingual working environmentCareer growth and learning opportunitiesExposure to modern technologies and large-scale product development Desired Skills and Experience