Job Application for Principal Software Engineer at RxSense

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.

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When you apply to a job on this site, the personal data contained in your application will be collected by RxSense (“Controller”), which is located at 2 Grand Canal Plaza D04V586 Dublin 2 99881 and can be contacted by emailing smulholland@rxsense.com. Controller’s data protection officer is Stephen Lesher, who can be contacted at infosec@rxsense.com. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf. Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses. You can obtain a copy of the standard contractual clauses by contacting us at smulholland@rxsense.com. Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment. Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have to right to data portability. In addition, you may lodge a complaint with an EU supervisory authority.

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Principal Software Engineer

RxSense in Dublin

Role Overview

Main Responsibilities

Knowledge. Skills and Experience

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