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Staff Full Stack Engineer

Aetion

Aetion

Software Engineering
Barcelona, Spain
Posted on Jun 3, 2025

WELCOME to Aetion! We are a global leader in science-driven technology using real-world evidence to provide innovative healthcare solutions. Our Discover and Substantiate applications, powered by the Aetion Evidence Platform, are 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 a Research and Development Hub in Barcelona.

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.
  • 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.
  • Monthly educational lunch & learns.

Why join our 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, mentor, and learn from highly-skilled colleagues, by leading initiatives, performing code reviews, and contributing to technical designs.
  • 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.

DESCRIPTION

As a science-driven healthcare analytics company with a rapidly growing customer base, we are seeking multiple Staff level Full Stack Engineers to strengthen our applications team in Barcelona.

As a software engineer, you will contribute to all parts of the software development lifecycle, including design, development, documentation, testing, and operations. You will play a key role in defining problems, designing solutions, and executing to achieve results. You will collaborate with other engineers to lead continuous improvements, refactoring, and rearchitecting to meet the growing expectations of our legacy system.

You will also partner cross-functionally with our product and science teams to provide insights on technology advancements contributing to increased scalability, reliability, and availability for Aetion’s platform.

RESPONSIBILITIES

  • Enrich one of our rapid-cycle full-stack analytic applications.
  • Develop and document highly performant and scalable component and 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.
  • Works across Engineering to address issues, identify technical debt, and lead cross-cutting initiatives.
  • Provide expertise on devising technical solutions, and make shrewd judgment calls on when and how to invest in tactical vs. strategic solutions.
  • Implement automated tests to validate changes to the codebase, and generally to increase overall coverage.
  • Provide insights and suggest technology advancements for the codebase’s scalability, reliability, and availability.
  • Lead by example to elevate engineering practices; Mentor, guide, and develop less senior engineers.
  • Document each aspect of a system or application as a reference for future upgrades and maintenance, as well as faster onboarding of new hires.
  • Collaborate closely with our product, design, and science teams to understand the needs of our clients.

QUALIFICATIONS

Required Qualifications

  • Bachelor's Degree in Computer Science, Engineering, or related field (or equivalent experience).
  • 7+ years of proven developer experience, highly proficient with TypeScript and ideally combined with some Java / OOP experience.
  • Ability to demonstrate understanding of system design, data structures, and algorithms.

Preferred Qualifications

  • Experience with high proficiency with front-end frameworks such as React, Angular, or similar.
  • Agile Methodology experience leveraging CI/CD.
  • Experience with big datasets.
  • Ability to prioritize, communicate well, design for repeatability and scalability, exude ownership, and dig beneath the hood with technology.
  • Enthusiastic about working in highly collaborative team environments, including partnering with product teams to find creative solutions for challenging engineering problems.

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.