Principal/Lead Software Engineer



Software Engineering
Barcelona, Spain · Remote
Posted on Saturday, October 28, 2023

WELCOME to Aetion! We are a global leader in science-driven technology using real-world evidence to provide innovative healthcare solutions. Our Aetion Evidence Platform is used to evaluate the safety, effectiveness and value of medications, delivering better outcomes to patients, medical professionals, and clients. We’ve partnered with top biopharma companies and are backed by leading venture capital firms to help increase our medical research and expand our product line. Aetion is headquartered in the US and has expanded throughout Europe with EU headquarters in Barcelona.

Recent Achievements:

Aetion and Aetion’s leadership are recipients of several prestigious awards:

Come join us!

PERKS of being an A-Teamer:

  • 25 vacation days
  • Daily in-office lunch stipend (and a fully stocked kitchen)
  • Sabbatical opportunity after five years of employment
  • Commitment to professional development opportunities with access to Skillsoft learning experience platform
  • Employee-led initiatives including annual company-wide innovation day & DEI resource groups
  • Comprehensive private health coverage w/ out-of-network reimbursements options .
  • Peer & company recognition programs
  • Mental Health & Wellness Benefits
  • Monthly educational lunch & learns

Why join Aetion’s tech team?

  • You’ll collaborate with other engineering leaders on all matters that impact the Engineering team, including resourcing and building technology/product vision
  • You’ll have the opportunity to coach and mentor colleagues, including code reviews, higher-level software design, and direct management
  • The team works on a technical stack which includes both cloud and on-premise deployments, big-data ingestion and analytics, distributed systems and algorithmic complexity.
  • Looking for more insight into our culture? Check out our LinkedIn Life page here:


As a science-driven healthcare analytics company with a rapidly growing customer base, Aetion is looking for a Lead Software Engineer to strengthen our backend engineering team in Barcelona. As a tech lead for our global backend data analytics team you will drive system architecture discussions and decisions, strategize, and execute to improve the core analytical backend of Aetion’s platform. Specifically, you will work with the team to lead continuous improvements, refactoring, and rearchitecting of how we query data using Spark & Scala to meet growing expectations of our system. You will work closely with our product and science team in providing insights on technology advancements for the platform’s analytical capabilities, ensuring scalability, reliability, and availability is at the forefront of strategic conversations.


  • Code in Scala and lead in the development of analytics code, services, jobs, workflows and clusters in Apache Spark (60-80%).
  • Implement automated tests to validate changes to the codebase, and generally to increase overall coverage.
  • Develop and document software solutions by studying information needs, conferring with users, studying systems flow, data usage, and work processes; investigating problem areas; and following the software development lifecycle.
  • Contribute to the strategic development and execution of the core analytical backend of Aetion’s platform.
  • Provide insights on technology advancements for the platform’s analytical capabilities by ensuring scalability, reliability, and availability.
  • Assist in the development of relevant features and processes to ensure that statistical programs are properly documented and implemented on Aetion's platform according to generally recognized industry and regulatory standards.
  • Mentor, guide, and develop less senior engineers.
  • Provide expertise on devising technical solutions. Making shrewd judgment calls on when and how to invest in tactical vs. strategic solutions.
  • Ensure continued functionality of a program during maintenance and testing of software
  • Document each aspect of a system or application as a reference for future upgrades and maintenance


Basic Qualifications

  • Bachelor's Degree in Computer Science, Engineering or related field, or equivalent experience.
  • 10+ years of prior experience writing production-level code in Java, Scala, Python, SQL, or R.
  • Extensive experience (2+ years) with Apache Spark and Scala programming.
  • Demonstrated experience leading large scale initiatives and technical projects.
  • Experience with big datasets and the large data domain.
  • Ability to demonstrate understanding of system design, data structures, and algorithms.

Preferred Qualifications

  • Ability to prioritize, communicate well, design for repeatability and scalability, exude ownership, and dig beneath the hood with technology.
  • Enthusiastic about working in collaborative team environments, including partnering with product teams to find creative solutions for challenging engineering problems.
  • Working knowledge of Python and R.

Aetion is an Equal Opportunity Employer. Aetion is committed to being an employer of choice, not just a good place to work, but a great and inclusive place to work. To that end, we strive to recruit and maintain a workforce that meaningfully represents the diverse and culturally rich communities that we serve. Qualified applicants will receive consideration for employment without regard to their race, color, religion, national origin, sex, sexual orientation, gender identity, protected veteran status or disabled status or, genetic information.