Senior Software Engineer

About CassianRx

CassianRx is a healthcare technology company on a mission to streamline specialty care. Our ONE Journey™ platform integrates data, workflows, and communication into a single ecosystem --- connecting patients, providers, pharmacies, pharmaceutical manufacturers, and payers in real time.

By reducing administrative burden and fostering transparency across the care continuum, we help healthcare organizations improve therapy access, operational efficiency, and patient outcomes. In short: we're building the connective tissue that makes specialty care work better for everyone in it --- especially the patients.

About the Role

We're looking for a Senior Software Engineer to help build the next chapter of the ONE Journey™ platform. This is a back-end-leaning role with full-stack reach, and it comes with real ownership --- not a ticket queue.

You'll design and develop scalable, secure systems; integrate complex data flows across our partner ecosystem; tune application performance; and shape the architectural decisions that determine where the platform goes next. On a small, focused team, the work you do has visible impact from day one.

What You'll Build With

• Languages: JavaScript, SQL
• Backend: Node.js / Express
• Frontend: React.js
• Data: MySQL; experience with caching layers (Redis) a plus
• Cloud: AWS --- EC2, ECS, SQS, Lambda, Elastic Beanstalk, S3, and the surrounding ecosystem
• APIs: RESTful design across multiple services
• Testing: Mocha / Chai for unit and integration coverage
• Workflow: Git with trunk-based development

Who You Are

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related STEM field
• 5--10 years of professional software development experience
• Strong foundation in computer science fundamentals --- algorithms, data structures, and system design
• Proficient in back-end web development, with a track record of building scalable, secure applications
• Advanced knowledge of object-oriented programming principles and modern development practices
• Skilled in coding, debugging, and the kind of careful problem-solving that holds up in production
• Experience with cloud platforms and modern dev tooling
• A clear communicator who collaborates well with engineers, product partners, and non-technical teammates
• Someone who takes pride in their craft --- clean code, thoughtful design, software worth putting your name on
• Familiarity with HIPAA, healthcare data, or SaaS environments is a plus

Why CassianRx

We're a focused team working on something that matters: making specialty care less fragmented for the patients living through it. If you want real ownership, a stack you can be proud of, and a mission worth showing up for --- let's talk.

Contact

We'd love to hear from you. Reach out anytime at [email protected].

Location: Philadelphia, PA, Charlotte, NC, Pittsburgh, PA or fully remote

Type: Full-Time