Senior Applications Engineer
Confirmed on the employer's own hiring board on Oct 8, 2026. First seen by Alion on Sep 2, 2026. Dassault Systemes scores B on the Alion truth index.
Senior Applications Engineer
Japan, 13, Tokyo
Regular
Key Job Details
Location:
Japan, 13, Tokyo
Job type:
Regular
Product:
MEDIDATA
Experience level:
4 to 5 years
Posted on:
9/2/2026
Ref ID:
549680
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Location: Hybrid, Tokyo
Medidata follows a hybrid office policy in which employees who are hired for an in-person position are expected to work on site a certain number of days per week following Company policy.
About our Company:
Medidata is powering smarter treatments and healthier people through digital solutions to support clinical trials. Celebrating over 25 years of ground-breaking technological innovation across more than 38,000 trials and 12 million patients, Medidata offers industry-leading expertise, analytics-powered insights, and one of the largest clinical trial data sets in the industry. More than 1 million registered users across approximately 2,300 customers trust Medidata's seamless, end-to-end platform to improve patient experiences, accelerate clinical breakthroughs, and bring therapies to market faster. A Dassault Systèmes brand (Euronext Paris: FR0014003TT8, DSY.PA), Medidata is headquartered in New York City and has been recognized as a Leader by Everest Group and IDC. Discover more at www.medidata.com. Listen to our latest podcast, from Dreamers to Disruptors, and follow us at @Medidata.
About the team:
As a Senior Applications Engineer in Medidata’s Platform organization, you'll help to modernize our architecture and support adoption of best practices throughout the company. You'll help to transform the Medidata Platform for customers, delivering mission-critical software that impacts internal and external teams.
Employing AI-first engineering practices, you'll build tools and products that serve as foundational components for engineering and customer-facing services, improving the quality and scalability of our systems. While our projects span various core services within the Platform, our mission remains constant - increase Medidata’s velocity of innovation by raising quality across all teams while maintaining our transparent and trusting team culture.
Responsibilities
- Write, debug, and deploy frontend and backend code using a variety of programming languages and frameworks, including Ruby and Ruby on Rails.
- Embrace AI-first engineering practices, creatively developing agentic workflows and using modern AI tools to solve complex engineering challenges.
- Create maintainable code through refactoring, continuous integration, test automation, and code review practices, with a strong focus on modern observability and leveraging AI to synthesize telemetry into actionable alerts.
- Drive architecture discussions and design decisions, with a focus on simplicity and maintainability.
- Bring a fresh perspective to current systems and architectures, identifying opportunities for modernization and optimization
- Participate in Agile working practices such as daily stand-up meetings, backlog grooming, sprint planning, and retrospectives.
- Advocate for transparency and knowledge sharing across the organization through regular blogs, reveals, and pull requests.
- Delight our users by delivering consistent improvement from user feedback.
- Create clear, thorough documentation that sets up other teams for self-guided success.
- Follow Medidata’s Standard Operating Procedures to ensure all software meets regulatory and company requirements.
Qualifications
- Proficiency in Ruby and Ruby on Rails as a versatile all-rounder.
- Versatility in tackling multiple aspects of microservices development and architecture.
- Strong problem-solving ability for complex technical challenges.
- Self-driven and self-motivated with a goal-oriented approach.
- Confidently share perspectives while demonstrating flexibility and openness to alternative viewpoints.
- Contribute to a positive working environment.
Education & Experience
- 5+ years experience with Ruby.
- 5+ years experience developing and maintaining production applications.
- B.S. in computer science or similar field or equivalent experience.
- Working knowledge of HTML/CSS and JavaScript.
- Familiarity with Micro Front-End (MFE) architecture, a plus.
- Experience using AWS cloud infrastructure and technologies, a plus.
- Experience working in a regulated environment or with clinical research processes, a plus.
- Familiarity with event-driven architectures and platforms like Kafka, a plus
Base pay is one part of the Total Rewards that Medidata provides to compensate and recognize employees for their work. Most sales positions are eligible for a commission on the terms of applicable plan documents, and many of Medidata's non-sales positions are eligible for annual bonuses. Medidata believes that benefits should connect you to the support you need when it matters most and provides benefits, including medical, life and disability insurance, paid time off, paid sick leave, Employee Assistance Program, and paid family leaves.
We will accept applications on an ongoing basis until we fill the position.
Inclusion statement
As a game-changer in sustainable technology and innovation, Dassault Systèmes is striving to build more inclusive and diverse teams across the globe. We believe that our people are our number one asset and we want all employees to feel empowered to bring their whole selves to work every day. It is our goal that our people feel a sense of pride and a passion for belonging. As a company leading change, it’s our responsibility to foster opportunities for all people to participate in a harmonized Workforce of the Future.
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MEDIDATA generates the evidence and insights to help pharmaceutical, biotech, medical device and diagnostics companies, and academic researchers accelerate value, minimize risk, and optimize outcomes.
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