Software Developer jobs in Spain

Who Are We?

UniUni, a North American leader in last-mile logistics, delivers tens of millions of parcels annually across Canada, from coast to coast, and is rapidly expanding its footprint in the United States. Founded in 2019, UniUni is known for its tech-driven innovation and crowdsourced delivery model, providing fast, economical, and reliable services to local, national, and international e-commerce clients.

What Do We Offer?

At UniUni, we empower our employees with opportunities to achieve their professional goals. We value both lateral growth and vertical advancement, ensuring every role helps you develop your skills, broaden your expertise, and build a fulfilling career. We are looking for passionate professionals ready to work hard, embrace challenges, and enjoy being part of a dynamic, fun team.

We are seeking a highly skilled and experienced Senior Software Engineer to join our innovative team. The ideal candidate will have a strong background in backend development and a proven track record of designing and developing scalable, high-performance software solutions. You will work collaboratively with cross-functional teams to deliver new features and functionalities, ensuring the highest level of quality and performance.

• In collaboration with the product owner and other development team members, design, develop, test, and deploy new features and functionalities with industrial best practices.
• Take ownership of the solution design and development for the critical components.
• Evaluate, implement, and enforce software development best practices.
• Participate in technical support, troubleshooting, and root cause investigation.
• Participate in system integration by providing technical insights, including estimation and technical proposals.
• Investigate and fix bugs, refactor, and improve performance.
• Mentor less senior developers on the team and provide thoughtful, constructive feedback on pull requests and design documents.
• Participate in Agile/Scrum development processes.
• Develop and maintain the essential technical documents.
• Provide technical support for web applications and mobile apps.
• Maintain a mindset of continuous learning.

• Degree in Computer Science, Engineering, or a related field
• 5+ years of experience in backend development
• Proficiency in designing, developing, and testing software in PHP Laravel framework; open to using multiple languages
• Experience in PHP Laravel or core Java and implementing solutions that handle high availability and concurrency with low latency requirements
• Experience in MySQL or PostgreSQL and able to optimize SQL query performance
• Experience with Domain-Driven Design and Test-Driven Development
• Experience with Docker and knowing Kubernetes as a bonus
• Experience designing and developing applications in Amazon Web Services and making use of Google APIs
• Experience deploying and supporting software across the entire Continuous Delivery lifecycle as a plus
• Sound SDLC practices and tooling experience—version control, CI/CD, and configuration management tools
• Ability to reason about performance, security, and process interactions in complex distributed systems
• Excellent communication skills, with the ability to collaborate well with both technical and non-technical audiences, both written and oral
• The ability to understand and effectively debug both new and existing software
• Experience meeting demands for high availability, low latency, and scale
• Experience working with remote/distributed teams and projects

• Dental, Vision, Medical insurance
• Paid Holiday, Paid Time Off, Paid Sick Leave
• Management training program
• Salary range $90,000 to $120,000 CAD