Requirements Degree in Computer Science, Engineering, or a related field, or equivalent hands-on experience. At least 5 years of programming experience in Go, C, C++, or Rust, with readiness to work in Go. Minimum 1 year of experience leading a team, with proven ability to drive technical decisions. Background in building and optimizing low-level applications. Practical knowledge of microservices and cloud-native ecosystems (AWS, GCP, or Azure). Familiarity with DevOps practices and tools such as Kubernetes, Terraform, Helm, GitHub Actions, and Grafana. Strong understanding of software engineering fundamentals including concurrency, synchronization, memory management, algorithms, and data structures. Experience with big data tools and frameworks (Spark, MapReduce, Elasticsearch, SingleStore, or cloud-native equivalents) is a plus. Awareness of cybersecurity practices will be considered an advantage. What We Offer Opportunity to collaborate with a skilled and supportive team in a friendly, informal work culture. 20 paid vacation days per year and fully paid sick leave. Modern equipment provided for your role. Partial reimbursement for training, certifications, and professional events. Legal and accounting support available in Poland. 5 additional paid sick days annually. Health insurance after probation. Free English and Polish language lessons (twice per week, online). Engaging company culture with events, celebrations, and employee gifts.