Careers

BackEnd Engineer

Location
Lisbon (Hybrid)
Experience
Min. 5 years

Skills

Java Kotlin
Description

About Us

BySix Engineers the future and drives innovation. We are more than just a standard software engineering company, we believe that true impact comes from combining technical expertise with human values. That's why we reflect that in our approach - technology is not the end goal, but the enabler.

Why Us?

🫸 Multidisciplinary team 📒 Training on demand 💴 Attractive salary and benefits package 📈 Career progression plans 👌 And amazing get together events

What are we looking for?

We are looking for a BackEnd Engineer with:

  • More than 5 years of proven experience as a Backend Engineer or in a similar engineering role within a cross-functional team environment.
  • Proficient in Kotlin for backend development.
  • Solid hands-on experience with Spring Boot and Ktor frameworks for building robust, scalable services.
  • Solid hands-on experience with SQL and relational databases, including optimization and schema design.
  • Familiarity with REST API design principles, microservices architectures, and cloud-based services (preferably AWS).
  • Comfortable working within an Agile development environment, embracing incremental delivery and continuous feedback.
  • Strong problem-solving and analytical skills, with a sharp eye for debugging and performance tuning.
  • Excellent written and verbal communication skills in English, with the ability to articulate complex technical concepts to a broad range of audiences.

We value:

  • A growth mindset and willingness to learn new technologies as needed.
  • A team-first attitude, understanding that success is collective.
  • A passion for quality, security, and automation throughout the software development lifecycle.
  • Experience with event-driven architectures (e.g., Kafka, SNS/SQS).
  • Exposure to CI/CD pipelines and Infrastructure as Code (e.g., Terraform).
  • Familiarity with containerization and orchestration tools (e.g., Docker, Kubernetes).
  • Previous work in startups or fast-paced environments where adaptability is key.

What do we expect from you?

  • Design, build, and maintain server-side applications with a focus on performance, scalability, and reliability.
  • Collaborate with cross-functional teams to define, design, and ship new features and improvements.
  • Drive best practices in code quality, security, and testing across the development lifecycle.
  • Troubleshoot, debug, and upgrade existing software systems proactively and effectively.
  • Stay current with emerging technologies and industry trends to continuously drive innovation within the team.

Are you ready?

If you're ready to make a real impact by leveraging cutting-edge technology and fostering human-centric solutions, BySix is the place for you. Together, we'll drive innovation and create lasting business value.

Note: BySix is an equal opportunity employer. All applicants will be considered and analyzed regardless of ethnicity, religion, gender identity, sexual orientation, national origin, age, or disability status.

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Introduction
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Beginner - Basic understanding. Limited ability to use the technology without guidance.
Basic - Able to perform simple tasks and apply foundational concepts with occasional support.
Intermediate - Competent in using the technology for regular tasks. Can troubleshoot common issues independently.
Advanced - Strong proficiency. Capable of handling complex tasks and optimizing workflows effectively.
Expert - Complete mastery. Able to teach, innovate, and implement advanced solutions with the technology.
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