Backend Software Engineer
Confirmed on the employer's own hiring board on Oct 8, 2026. First seen by Alion on Jun 26, 2026.
About the role
We are seeking a skilled Backend Engineer to join our dynamic engineering team. This role focuses on building scalable, robust software solutions using modern development practices. The ideal candidate will participate in high-level technical decisions, mentor team members, and help the team grow as the company expands.
Key Responsibilities
Software Development: Design and develop scalable, efficient, and high-quality backend systems for our B2B application using modern engineering principles.
Agile Practices: Follow agile methodologies to ensure iterative development and quick delivery of features.
Technical Leadership: Participate in high-level architectural decisions, ensuring scalability, performance, and security.
Mentorship: Empower and guide other developers, fostering knowledge sharing and professional growth.
Scalability & Growth: Ensure the technology stack and systems can scale alongside the business growth.
Required Qualifications
Experience: Minimum of 5 years in software engineering with a focus on backend development.
Education: Degree in Computer Science, Engineering, or a related field.
Technical Skills:
Strong proficiency in Java with a deep understanding of JVM, including memory management and profiling.
Expertise in the Spring Framework (Spring MVC, Spring Security, Spring JPA).
Extensive knowledge of Object-Oriented Programming (OOP) and software architecture principles.
Familiarity with SOLID Principles, Clean Architecture, and Design Patterns.
Strong understanding of relational databases, performance tuning, and optimization strategies.
Experience with Test-Driven Development (TDD).
Knowledge of cloud environments and tools, including IaaS and PaaS, particularly AWS.
Familiarity with DevOps practices.
What We Offer
A competitive salary package based on your experience.
An impressive benefits package, focused on our culture of integral health that includes medical insurance, gym with personal trainer, sauna and hyperbaric chamber, and fresh fruit every day.
Tax-advantageous wage benefit: Meal card, transport package and other measures such as childcare allowance.
Discount on Veg it (vegan meals) to order your lunch at the office.
Flexible start and finish times.
Reduced working hours in August.
23 holidays plus 3 extra days at disposal
Hybrid Work Model.
English classes
Parking benefit for those who live outside of Barcelona.
We want to make a difference, and as soon as the trial period is over, you receive an impressive gift as proof of the success of joining the project.
And what we are very proud of, you will join a young, motivated and powerful team with a great team culture. As it’s not all work, we maintain the team spirit with team building events, parties and workshops where you can enjoy our achievements. When you leave in the afternoon, you can join our paddle tennis games near the office.