Principal Software Engineer

We are a healthcare technology company that provides platforms and solutions to improve the management and access of cost-effective pharmacy benefits. Our technology helps enterprise and partnership clients simplify their businesses and helps consumers save on prescriptions.

As a leader in SaaS technology for healthcare, we offer innovative solutions with integrated intelligence on a single enterprise platform that connects the pharmacy ecosystem.  With our expertise and modern, modular platform, our partners use real-time data to transform their business performance and optimize their innovative models in the marketplace.

RxSense in Dublin

RxSense is establishing a new development centre in Dublin as part of our global growth strategy, bringing together the city’s world-class engineering talent with our mission to transform healthcare technology. Dublin’s thriving tech ecosystem and strong community of innovators make it the ideal hub to accelerate product development and drive cutting-edge solutions. But Dublin isn’t just about core engineering — it’s strategically placed to support AI-driven transformation across product, engineering, and design.

By joining our new centre, you’ll collaborate with international teams, and grow your career in an environment that values creativity, ownership, and continuous learning.

Role Overview

We are seeking a Principal Engineer to lead a critical refactoring initiative, migrating our existing platform to an in-memory database architecture. You will play a pivotal role in ensuring scalability, performance, and reliability across our technology stack.

Main Responsibilities

• Lead the design and refactor of the core platform to leverage an in-memory database solution, with emphasis on GemFire or equivalent distributed caching/data grid technologies.
• Partner with product and architecture teams to define scalability, performance, and quality goals aligned to RxSense business growth.
• Build and optimize data models, query performance, and caching strategies for mission-critical systems.
• Drive a test-first, quality-driven approach to engineering to improve release confidence, enhance date certainty, and reduce defects.
• Champion initiatives that reduce time to market while improving system reliability and lowering long-term engineering effort.
• Provide technical leadership and mentorship across engineering teams in best practices for distributed systems and high-performance data processing.
• Contribute hands-on to application development, with emphasis on Python for automation, integration, and backend logic.
• Collaborate with teams using Java and .NET/C# to ensure seamless migration and interoperability across the platform.
• Drive code reviews, design reviews, and architecture discussions to maintain engineering excellence.
• Champion the RxSense engineering culture of innovation, reliability, and continuous improvement.

Knowledge. Skills and Experience

• 10+ years of software engineering experience, with at least 5+ years in distributed systems, in-memory data grids, or high-performance databases.
• Experience designing and implementing scalable architectures in a regulated or mission-critical environment.
• Strong understanding of data consistency, replication, fault tolerance, and distributed computing principles.
• Hands-on leadership: ability to set direction, mentor teams, and still roll up sleeves for deep technical work.
• Experience with GemFire (strongly preferred) or similar platforms (Hazelcast, Redis Enterprise, Coherence, Ignite).
• Proficiency with Java and/or .NET/C#, particularly in enterprise environments.
• Proven expertise in Python (backend, data pipelines, automation, or distributed applications).
• Background in healthcare, PBM, or other regulated industries a plus.
• Familiarity with CI/CD pipelines, cloud infrastructure (AWS), and containerized environments (Docker/Kubernetes).
• Prior success driving large-scale platform refactors or migrations.

RxSense believes that a diverse workforce is a more talented and productive workforce. As such, we are an Equal Opportunity and Affirmative Action employer. Our recruitment process is free from discriminatory hiring practices and all qualified applicants are considered for employment without regard to race, color, religion, sex, gender, sexual orientation, gender identity, ancestry, age, or national origin.  Neither will qualified applicants be discriminated against on the basis of disability or protected veteran status.  We believe in the strength of the collaboration, creativity and sense of community a diverse workforce brings.