Senior Software Engineer at Flatiron Health | Tokyo, JPN | Rezi

Senior Software Engineer at Flatiron Health

Senior Software Engineer

Flatiron Health · Tokyo, JPN

1 weeks ago

Senior Software Engineer

Flatiron Health · Tokyo, JPN

13 days ago
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About the Role

We’re looking for a Senior Software Engineer to help us accomplish our mission to improve and extend lives by learning from the experience of every person with cancer.

Responsibilities

  • Design, develop, and deploy robust software solutions to securely access, transfer, and transform raw patient data into high-quality, ready-to-use real-world evidence and data products.
  • Collaborate with Flatiron colleagues globally and work day-to-day with oncologists, clinicians, product leaders, quantitative scientists, and customers to understand their challenges and build technological solutions.
  • Drive key technical objectives within the team's roadmap and lead architectural decisions for your areas of scope, ensuring alignment with global Flatiron engineering standards.
  • Lead the architecture, design, and development of data extraction and web applications that meet the needs of a rapidly changing business.
  • Devise creative solutions to solve tough business, security, and data privacy challenges.
  • Lead the hands-on deployment of solutions at hospital partner premises, directly navigating and troubleshooting complex local infrastructure, network configurations, and technical constraints.
  • Mentor and guide other engineers, fostering a culture of technical excellence and continuous learning.

Requirements

  • 5+ years of experience with software development using programming languages, such as C#, Java or Python
  • 5+ years of experience with web technologies (such as HTML, CSS and JavaScript) and backend frameworks (such as ASP.NET Core and Spring MVC)
  • 3+ years of experience with relational database systems, such as PostgreSQL and MySQL
  • 3+ years of experience with Linux system administration
  • Experience working with infrastructure as code (IaC)
  • Deep expertise in system architecture, data modeling, and designing secure APIs.
  • Business-level proficiency in English
  • Native or advanced business-level Japanese proficiency, with the polished communication skills and professional etiquette required to lead technical discussions, align on requirements, and build trust directly with physicians, hospital executives, and vendor partners
  • Strong understanding of networking fundamentals (TCP/IP, DNS, routing, firewalls, and proxy configurations) and experience troubleshooting connectivity issues in highly secure or restricted enterprise environments
  • Willing to travel to hospital partner premises to perform server operations when needed.

Skills

  • C#
  • Java
  • Python
  • HTML
  • CSS
  • JavaScript
  • ASP.NET Core
  • Spring MVC
  • PostgreSQL
  • MySQL
  • Linux system administration
  • Infrastructure as code (IaC)
  • System architecture
  • Data modeling
  • API design
  • Networking fundamentals (TCP/IP, DNS, routing, firewalls, and proxy configurations)
  • EHR systems development or operation
  • Server hardware management
  • AWS development

Location

  • Tokyo, Japan

Work Type

  • Full time
  • Fixed term contract (12-month)
  • Flex-time system

Experience Level

  • Senior
  • 5+ years of experience with software development
  • 5+ years of experience with web technologies
  • 3+ years of experience with relational database systems
  • 3+ years of experience with Linux system administration

Benefits

  • Health insurance
  • Pension
  • Employment insurance
  • Workers' Accident insurance

About the Company

  • Flatiron Health is a healthtech company using data for good to power smarter care for every person with cancer, around the world.
  • Flatiron partners with cancer centers in the US, Europe and Asia to transform patients’ real-life experiences into real-world evidence and create a more modern, connected oncology ecosystem.
  • Our multidisciplinary teams include oncologists, data scientists, software engineers, epidemiologists, product experts and more.
  • Flatiron Health is an independent affiliate of the Roche Group.
  • Our people are at the center of everything we do.
  • We strive to foster a culture where our teammates feel equipped and empowered to make meaningful contributions with confidence, compassion, and clarity.