Senior Software Engineer

Barcelona / Engineering / Full-time

We are looking for a Senior Software Engineer for our team either remote or from our cozy office in Barcelona. We seek a proactive person with experience building scalable web platforms. You should have a strong interest in modern applications and systems and will help us set the new standard for distributed data analysis in the cloud. This pivotal role will help lead the development of the Nextflow Tower platform.

Your time will be split between hands-on development and leading the engineering team. As a team player, you will collaborate in growing the organization and delivering quality software. We require a proactive candidate who thrives in fast-paced environments and who wants to invent the future. 

Previous experience with highly scalable, distributed cloud systems is a plus.


  • Collaborate and make proposals about the engineering work, and help the team members make informed decisions in alignment with the strategic plans of the company
  • Expose technology and organizational needs throughout the engineering department
  • Teach, mentor, grow and provide advice to other domain experts, individual contributors, across the team
  • Play a central role in technical, business, and organizational contributions affecting the department
  • Solve technical problems of the highest scope, complexity, and ambiguity for the engineering department
  • Looks for innovation opportunities with a willingness to experiment and to boldly confront problems of large complexity and scope
  • Proposes initial technical implementation which supports architectural changes that solve scaling and performance problems
  • Ensures that OKR level goals are aligned across the team
  • Guide conversations to remove blockers and encourage collaboration across teams
  • Interact with customers and other external stakeholders as a consultant and spokesperson for the work of your sub-department
  • Evaluate existing engineering processes and recommend improvements
  • Recommend new technologies to improve system performance and reliability
  • Provide technical guidance in planning and executing assigned projects
  • Develop new systems and maintain and modify existing systems when required
  • Schedule engineering meetings to discuss new ideas, issues, and project status
  • Evaluate existing engineering processes and recommend improvements


  • Bachelor’s Degree in computer engineering/computer science or related field
  • Design of highly scalable systems
  • Five years of working experience with Java programming
  • Experience designing microservices-based applications
  • Solid experience with API design and patterns
  • Experience with Event-driven systems
  • Experience with Elasticsearch and time-series databases
  • Experience writing parallel and concurrent algorithm
  • Containerized applications & ecosystem
  • Ability to write high-quality, efficient, and testable code

Desirable Skills

  • Experience with Micronaut application framework
  • Experience with Groovy programming language
  • Proficiency with the Gradle build system
  • Strong analytical skills
  • Excellent organizational and leadership skills
  • Proven experience in software development methodologies
  • Proven experience building complex web systems
  • The ability to work in a multi-tasks environment

Why working at Seqera rocks?

By learning from and with each other, we ensure our ability to drive innovation and make better decisions in our mission. Most importantly, our culture provides a genuinely fun, inclusive, and challenging environment that will allow you to grow while making a huge difference in human health and beyond.

Join us and you will enjoy all of these:

- Awesome international working environment

- Passionate & talented team

- Continuous skills development

- Mental health app access

- Team retreats and bonding activities

About Seqera

At Seqera Labs we develop software that simplifies complex data analysis pipelines. These pipelines are used for the analysis of data like DNA sequences and fMRI in applications spanning research, agritech and the clinic. Our software enables scientists to create and securely deploy their data applications in the cloud or on traditional high-performance computing infrastructure.

We are the leading provider of open source workflow orchestration software: Nextflow. We connect data pipelines, cloud infrastructure and enable collaboration across life sciences, healthcare, imaging and machine learning. Nextflow is used by thousands of organizations of all sizes—from startups to large enterprises— to manage their data analysis and get results fast.

From personalized immunogenic vaccines to sequencing-based diagnostics, Seqera's customers are performing the most critical work on this planet. We believe in a future where scientific applications and massive datasets join forces to deliver incredible outcomes.

You should know

Seqera Labs is proud to be an equal opportunity employer. However you identify or whatever your journey to this point, we welcome all candidates to apply for the position that inspires them. Come join us and help us build a global company that everyone is proud to be part of.

As we scale, we constantly improve our in-office and WFH environments and learn to help everyone have the best setup for our company's success and your personal development, while always keeping the human touch in every aspect of our lives.