at Sun* Inc.

Fullstack Engineer (English Fluency)

WHAT WE DO:

  • Develop end-to-end features across frontend and backend using modern web frameworks and backend technologies (e.g., React, Vue, .NET, Node.js, Python)
  • Build scalable, responsive web applications with a strong focus on user experience
  • Design and implement backend services, business logic, and RESTful APIs
  • Integrate and optimize database queries using SQL and ORM frameworks (e.g., Entity Framework, Dapper)
  • Collaborate with Product teams and stakeholders to ensure feature completeness and performance
  • Ensure quality via code reviews, testing (unit/integration), and observability

WHO YOU ARE:

#Mandatory Skills

  • 4+ years of experience as a Fullstack Engineer, working across both frontend and backend
  • Experience building modern frontend applications using frameworks such as React, Vue.js, Angular or similar
  • Experience working with backend technologies such as Node.js, .NET, Python or similar
  • Ability to design and develop end-to-end features, from frontend UI to backend services
  • Solid experience designing and implementing RESTful APIs (GraphQL is a plus)
  • Good understanding of relational databases (e.g., PostgreSQL) and query optimization
  • Experience with cloud platforms (AWS, Azure, or GCP)
  • Experience with CI/CD pipelines and containerization (Docker)

#Desired Skills

  • Experience working with microservices architecture
  • Familiarity with AI-related products, AI tools, or LLM-powered platforms
  • Experience with modern frontend tooling (e.g., Tailwind CSS, Zustand/Redux, React Query, or similar)
  • Experience working with serverless or cloud-native architectures
  • Familiarity with observability and monitoring tools
  • Experience working in global or English-speaking engineering environments

#Skill requirements

  • Excellent English communication skills
  • Outstanding teamwork abilities
  • Proven ability to prioritize and allocate work
  • Sharp critical thinking and logical reasoning
  • Effective problem-solving skills

#Attitude Requirements

  • Customer-centric mindset
  • Adaptability to change
  • Commitment to continuous learning and growth

BENEFITS AND PERKS

# Professional, open-minded, and creative environment:

  • Work with colleagues who embrace ideas to change the society
  • Respect different perspectives within a team
  • Strong learning culture that promotes individual development
  • The culture of taking risks to experience and thrive

# Focus on individual development:

  • Be consulted, accompanied, and supported in career development with the career path system (developing in expertise or management direction) that has been studied and tested for many years
  • Be oriented for individual, group, and organizational goals
  • Be empowered
  • Be supported to define a 3-month or 6-month goal (Goal Define Support)
  • Get access to company Learning Hub online library with various courses provided by Udemy, LinkedIn,…

# Special care for employees:

  • Salary: Negotiable + competitive allowance (lunch, living allowance, beauty care, Japanese and IT certificates, etc.)
  • Performance-based bonus and year-end bonus
  • Performance review: Twice/a year
  • Hybrid working policy; flexible check-in, check-out
  • Comprehensive health insurance Sun* Care
  • Seniority Allowance
  • Women care allowance: Women’s physiological leave: 2.5 hours/month; Postpartum leave for female employees with under 1-year-old children: 1 hour/day
  • Policies supporting learning activities, knowledge sharing, and cultural exchange (Technology Seminar – Tech Expert, Club: Reading, Japanese, Music Club, …
  • Annual company trip and quarterly team-building activities.

Note: By applying for this position, you consent to Sun* collecting, storing, and processing your personal data for current and future recruitment purposes. Your data may be shared with relevant parties involved in the recruitment process and will be retained indefinitely until you submit an official written request for its deletion.

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