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Senior Backend Engineer with Kotlin

Appunite
Poznan, województwo wielkopolskie
Full time
1 dzień temu

About us

Not a software-house for sure, not a product company either. We try to take the best from both of these approaches. We build deep, long-last relationships based on mutual trust. Our clients have insight into the smallest details of our work and direct communication channels create a feeling of sitting next to the team. We foster a spirit of collaboration and try to work as one team with one goal.

On job boards, you can often see that having an influence is advertised as a benefit. Well, we think that this is a good start. For us, your impact is actually desirable and required. We believe that mutual and honest feedback will allow us to build a better team, better product and is a great opportunity for personal growth.

We foster a culture of learning and experimentation. You will be able to validate your ideas on the production from day one. Do you think that tuning that query will reduce page load time by 50%? Or maybe changing the placement of that button will boost product conversion rates vastly? No problem, let's check and measure that!

Of course, everyone makes bad calls sometimes. This is natural and there is nothing wrong with that. The worst thing would be not learning those lessons and keeping that knowledge for yourself.

Salary: 18 000,00–23 000,00 PLN net / monthly on B2B

Availability: ASAP



You are ideal fit if you have:

  • 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.

Nice to have:

  • 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.

Responsibilities:

  • 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.

What 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.

Our recruitment process is only 3 steps long

  • Video interview with our Recruitment Team (abt 45 minutes)

  • Technical task (3-4 days to complete)

  • Video interview with our Backend Team (abt 90 minutes)

  • If any other step of the recruitment process is necessary, we will inform you.

  • And finally, the decision, after which we can say “welcome on board.”

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