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Jobs→LiNKX株式会社→[Flexible Attendance / Full Flex Time / IPO Scheduled for June 2026] Startup Challenging the Modernization of Core Banking Systems | Senior Backend Engineer Wanted

[Flexible Attendance / Full Flex Time / IPO Scheduled for June 2026] Startup Challenging the Modernization of Core Banking Systems | Senior Backend Engineer WantedEnglish summary from Japanese

LiNKX株式会社

✓ Detailed
Salary
901万円 〜 1,200万円
Apply on FINDY

Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

LiNKX is a fintech startup modernizing core banking systems using AI and cloud-native technologies. They are seeking a Senior Backend Engineer to lead architectural design, technology selection, and development, while mentoring junior engineers. The role involves working on mission-critical financial systems and contributing to the company's IPO scheduled for June 2026.

Must-haves

  • 7+ years of software engineering experience or equivalent achievements
  • Experience leading a team as a Senior or Tech Lead (min. 3 people)
  • Deep knowledge and large-scale development experience in at least 2 of: Spring (Java/Kotlin), Vue.js/Nuxt.js/Quasar, Go, C# .NET/ASP.NET
  • Advanced knowledge and infrastructure design/build experience in at least one of: AWS, GCP, Azure (including IaC with Terraform/OpenTofu)
  • Design experience with modern architectural patterns (microservices, distributed systems, EDA) and ability to explain design intent
  • Strong foundational knowledge of Computer Science, OS, and SDLC
  • Fluent English communication skills (reading/writing required) for multinational teams

Nice-to-haves

  • Experience developing financial systems or in the fintech domain

About the Company

LiNKX株式会社

Headquarters
東京都港区赤坂1丁目12番32号
Visit Website
Posted7/30/2026
Sourcefindy
  • Experience in large-scale development in the enterprise domain
  • Consultative experience in upstream processes, understanding client issues and proposing technical solutions
  • Development experience in projects with high-level security principles required for financial systems
  • Experience from the early stages of product development (PoC, MVP) with an overall business perspective
  • Experience introducing and operating agile development styles (Scrum, Kanban) within a team
  • Tech stack

    JavaKotlinTypeScriptGoC#SpringVue.jsNuxt.jsQuasar.NET FrameworkAWSGCPAzureTerraformOpenTofu

    Work style

    Hybrid (frequency depends on project, with initial onboarding requirements). Super flexible time system (no core hours). Location: Tokyo, Japan.

    Other notes

    Annual salary: ¥9,000,000 - ¥12,000,000. No bonuses. Trial period: 3 months (same conditions).