Senior Backend Developer / Software Test Engineer - Gothenburg

About this job

You will play a key role in designing, developing, and validating our backend system. You will work closely with our software and firmware teams to develop reliable, scalable backend services with a strong focus on quality, testing, and automation. Your experience in backend development and test engineering will be important in shaping and improving our platform. What you will do: Design, develop, and maintain backend services and systems using Go and the Twelve-Factor App methodology. Design, develop, and maintain automated test frameworks, test environments, and validation processes for backend systems and services. Define and implement test strategies covering functionality, integration, system, regression, and performance testing. Build tools and test harnesses to verify the reliability, scalability, and correctness of distributed systems. Optimize software for performance, efficiency, reliability, and scalability. Troubleshoot, debug, and analyze applications and test results to ensure smooth functionality. Collaborate with front-end developers, firmware engineers, and other stakeholders to deliver high-quality software solutions. Participate in code reviews and provide constructive feedback to team members. Your Profile Minimum of 5 years of experience in backend development, test engineering, or a similar role. Experience with Go is a strong advantage. We also welcome candidates with solid backend experience in other typed backend languages. Experience designing and implementing CI-based test execution for backend systems and distributed applications. Experience and familiarity with concurrent and asynchronous programming. Proven experience with RESTful API design, implementation, and testing. Strong familiarity with Linux-based IT systems and test or hosting environments. Knowledge of databases (PostgreSQL, Cassandra) and expertise with in-memory caching solutions (Redis or comparable). Experience with distributed event-streaming and messaging systems, such as Apache Kafka or NATS. Experience working with version control systems (Git) in collaborative environments. Excellent problem-solving skills and attention to detail, with the ability to make sound trade-offs based on business needs and technical requirements. Ability to work independently and as part of a team. You communicate clearly and are comfortable supporting and mentoring less experienced developers. Strong communication skills in English, written and spoken. Proficiency in Swedish is a plus.

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