Mytos is backed by Y Combinator, the most successful startup program in the world which produced companies such as AirBnb, Dropbox, and Ginkgo Bioworks.

The Role

As a Senior Software Engineer focused on full-stack product development, you'll build the critical interfaces and systems that enable scientists to work with our cell manufacturing platform. You'll create intuitive, reliable software that abstracts away complexity while giving users powerful tools to customise and monitor cell growth protocols.

Any experience with distributed systems will translate well to our environment, where you'll find familiar concepts like asynchronous communication and managing state consistency across components — with the added excitement of components including physical hardware!

Your work will directly impact how quickly and effectively new therapies and research tools can be developed, ultimately helping patients worldwide.

What You'll Do

• Work directly with customers to translate their scientific workflows into reliable, flexible and simple software solutions. - Own and deliver end-to-end product functionality spanning experiment scheduling, automated image analysis, and remote operation of our devices. - Develop and improve our frontend applications using TypeScript, React, and GraphQL to create intuitive interfaces for complex biological workflows. - Build backend services that communicate with our hardware systems and ensure data integrity throughout the cell manufacturing process. If you've worked on microservices you already understand many of the challenges we face! - Collaborate across disciplines with hardware engineers, biologists, and commercial teams to build reliable and effective systems in record time. - Leverage tooling and automated testing to deliver quality software at speed. - Contribute to the core architecture of our systems, improving database performance, data integrity, API design, and distributed system reliability. Your experience with software resilience will help us build systems that gracefully handle unexpected scenarios.

Must-have

• Strong experience with full-stack web development using TypeScript or other typed languages. - Experience with modern frontend frameworks (React preferred). - Experience with backend development and API design (Node.js preferred). - Understanding of distributed systems concepts — if you've built reliable microservices or dealt with API synchronisation, you already have relevant experience. - Experience working with databases (PostgreSQL and Prisma or similar ORM experience ideal). - Experience working with complex data and creating intuitive interfaces to manage it. - Ability to work effectively in cross-functional teams. - Strong communication skills and customer empathy.

At least one of these areas

• Product thinking and design mentality : Experience working closely with users, translating complex requirements into simple interfaces, and making scope decisions based on customer value. - Deep distributed systems expertise : You bring a deep experience working with complex systems with varying constraints on the solution space. If you’ve worked with systems running at different deployment/update schedules, data migrations for historical data, multiple-environments architectures for regulatory compliance, we want to hear from you! We apply similar patterns to coordinate between software services and hardware components. - Systems control understanding : Ability to reason about system state and processes. If you've designed state machines or worked with data pipelines, these skills are relevant.

Nice-to-have

• Experience with Python for data processing or image analysis. - Background or interest in biology, lab automation, or scientific instrumentation. - Experience working with or building distributed systems. - Experience with regulated environments (GMP, HIPAA, etc.) - Experience with UI/product design processes and tools (wireframes, mockups, looks-like prototypes, etc.).

Why You'll Love Working Here

• Impact : Your work will directly enable the production of cell therapies that can transform patients' lives. - Growth : We're solving complex problems at the intersection of software, hardware, and biology—you'll constantly learn and develop new skills. - Autonomy : You'll have the freedom to shape our approach to GMP readiness, with support from a talented cross-disciplinary team. - Team : Work with the best engineers and scientists in a collaborative environment where diverse perspectives drive innovation.

Salary And Benefits

• Competitive salary with stock options - Collaborative team environment with very high potential to learn new skills - 32 days holiday (bank holidays, end-of-year closure, and 21 days discretionary PTO) - Workspace with office, workshop and wet lab facilities in the Imperial College Innovation hub, White City - Strong in-person culture with team lunches covered daily when in office - Flexible working with core hours (10am to 4pm) to support team collaboration - Hybrid working (typically 2-3 days on-site per week) that respects where you do your best work while maintaining overall team efficiency

We're building a team that enjoys moving fast, strives for continuous improvement through learning from mistakes, and is passionate about work that contributes to solving real world problems. No GMP experience? No problem! We want someone who is motivated to deliver an innovative product into a regulated space with creative, efficient solutions.

If you're excited about solving interesting problems at the intersection of software, hardware, and biology while helping us prepare for the next phase of our growth, we want to hear from you!