Note: The job is a remote job and is open to candidates in USA. Castor is modernizing clinical research through a modular cloud platform that supports clinical trials end-to-end with electronic data capture, eConsent, eCOA, and AI automation. The Senior Platform Engineer will build secure, reliable, containerized infrastructure on Azure, maintain centralized messaging systems, enable product teams to deploy services at scale, and improve automation, documentation, and operational reliability.
Responsibilities
- Designing and implementing solutions that allow product teams to run containerized services seamlessly
- Developing internal best practices, guidelines, and documentation to help developers navigate cloud infrastructure
- Writing and maintaining code for centrally managed services while improving security and reliability
- Manage our centralized messaging infrastructure (NATS), ensuring its reliability, scalability and performance
- Providing support through a dedicated on call rotation
- Contributing to technical documentation and Architecture Decision Records to keep our ecosystem transparent and stable
Skills
- Proficiency in at least one general-purpose programming language
- Solid experience deploying and optimizing solutions on a major cloud provider
- A strong grasp of Infrastructure as Code (Terraform) and the containerization ecosystem (like Kubernetes) and related tooling
- An understanding of Linux, networking, web applications, and database fundamentals
- Familiarity with monitoring server and application performance, with the troubleshooting skills to resolve issues in a distributed environment
- Deep understanding of distributed systems and message brokers
- Comfortable taking ownership of critical infrastructure components that keep our services communicating reliably
- Python or Go preferred
- Azure or GCP
- CET+/-2
Benefits
- Remote-first work arrangement with autonomy to manage your schedule
- Unlimited annual leave with a 25-day minimum
- Quarterly company-wide downtime weeks for deep focus, learning, or catching up
- AI tools and training to support high-value work and reduce manual repetition
- Employee stock options through the Employee Stock Option Plan (ESOP) offered to all Castor team members
- Free access to Open Up for mental health support
- Specialized sleep courses for you and your family
- A budget to improve your home office
- A guaranteed “Happy Holidays” bonus every December
Company Overview