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Software Development Engineer (Onsite)

Cytek Biosciences
Seattle, WA Full Time
POSTED ON 12/6/2025 CLOSED ON 12/29/2025

What are the responsibilities and job description for the Software Development Engineer (Onsite) position at Cytek Biosciences?

Join the team behind Cytek Biosciences’ advanced flow cytometry platform. In this role, you'll be instrumental in designing, maintaining, and supporting the desktop software powering our flow cytometry instruments. You'll craft solutions for instrument control, real-time image capture and processing, data visualization, statistical analysis, and user data management across both Windows and Linux environments.

Our development stack includes C# and C (within Visual Studio) along with Qt. Bring your experience in these tools to help build intuitive, reliable, and high-performing scientific software.

What You'll Do

  • Architect & Build: Design, develop, document, and rigorously test software that controls our flow cytometry systems.
  • Learn & Validate: Deeply understand our instruments and the scientist-operators who use them.
  • Collaborate & Communicate: Participate in design and code reviews. Clearly articulate technical ideas, both verbally and in writing.
  • Shape System Design: Contribute to application and system architecture to ensure maintainability and scalability.
  • Troubleshoot & Resolve: Debug system-level software and contribute to its evolution.
  • Ensure Quality: Partner with QA to design automated and unit tests, ensuring software reliability.
  • Support in the Field: Work with field teams to resolve live support challenges and enhance user experience.
  • Adapt & Contribute: Embrace additional responsibilities as needed to help propel the team forward.

What We’re Looking For

  • Academic Background: Bachelor’s or Master’s in Electrical Engineering, Computer Science, or a related discipline—advanced degrees (Master’s/Ph.D.) would be a plus.
  • Proficient Developer: 2 - 5 years of strong software engineering experience—especially in crafting complex, user-facing applications.
  • Real-Time Systems: Proven experience with real-time, multithreaded communication among software, firmware, and hardware.
  • Thoughtful Design: Deep understanding of object-oriented design principles.
  • Adaptable Collaborator: Experience building new software components as well as maintaining and improving existing systems.

Work Environment & Physical Requirements

This position involves occasional work around laboratory equipment. We highly prefer candidates who can work onsite at our Seattle office. We’re committed to inclusive hiring and will provide accommodations to help individuals perform essential duties effectively.

What Sets Us Apart

  • Impactful Engineering: Your work will directly support leading-edge cytometry systems used in research and diagnostics.
  • Cross-Disciplinary Exposure: Collaborate with engineers, scientists, and technical support teams to refine solutions.
  • Growth & Innovation: Advance your skills in real-time systems, imaging, analysis software, and more.
  • Collaborative Culture: Join a dynamic, purpose-driven environment where your voice matters—and your contributions power real results.

Why Join Cytek?

Innovative Culture

Be part of a team that champions creativity, teamwork, and scientific excellence. Cytek thrives on collaboration, customer focus, and an entrepreneurial spirit grounded in integrity and shared success.

Meaningful Impact

Contribute directly to a biotech pioneer—recognized as the 2024 BioTech Company of the Year for advancing Full Spectrum Profiling™ technology, which is reshaping flow cytometry and accelerating research in immunology, oncology, and beyond.

Growth & Development

Cytek invests heavily in employee training and development—fostering career progression and innovation. Employees are encouraged to stretch their skills, and growth opportunities are built into the company’s DNA.

Comprehensive Benefits & Equity

Enjoy competitive compensation, a full package of benefits, and a workplace committed to inclusion and ethical practices. Cytek welcomes diverse backgrounds, identities, and experiences, ensuring all team members are supported and respected.

Salary : $138,000 - $156,000

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