Job Description On The Spot Development is a software development company that builds R&D teams for heavily invested startups and tech companies from the UK, EU, and Israel. This job opportunity is for a position within one of our teams. You will be directly employed by On The Spot and will collaborate closely with our partner companies, contributing to their product's journey. As a part of Orca cloud security suite, we are developing a product that processes massive amounts of real-time data. Our team drives Cloud Detection and Response (CDR) solutions, managing large-scale API log ingestion, comprehensive stream and batch log analysis, and high-performance real-time services. By connecting software engineering, big data processing, cloud infrastructure and security, we are delivering scalable and reliable systems.ResponsibilitiesOwn and drive the architecture, implementation, operation and maintenance of the entire Cloud Detection and Response product offering, including breach detection, anomaly detection and forensicsManage team performance and employee wellbeing (up to 5 people)Oversee team ceremonies and manage team deliveriesLead communication with stakeholders (product management, technical support, sales) representing the teamEnsure the reliability, performance, and scalability of our infrastructure, making data-driven improvementsDevelop and optimize real-time and batch processing pipelines for API log ingestion and analysisImplement and enhance observability using metrics, logging, and tracing to monitor service health and performanceWork closely with product management and research teams to align technical decisions with business needsDesign and implement storage solutions optimized for different types of data (structured, semi-structured, unstructured)Tech StackProgramming Languages: Python, GoFrameworks: Django, FastAPI, FaustStreaming/ConfluentMessaging & Streaming: Kafka, SQSInfrastructure & Orchestration: Kubernetes, DockerDatabases: PostgreSQL, SingleStore, ElasticsearchMonitoring & Observability: Grafana, Prometheus, CoralogixVersion Control & CI/CD: GitHubCloud infrastructure: AWS (primary), GCP, AzureQualifications5+ years of experience in software engineering with a focus on backend, distributed systems, or real-time data processing.Nice to have at least 1 year of experience as a team leader, demonstrating proven leadership and the ability to guide technical decisionsStrong expertise in building scalable and performant services.Experience designing and deploying real-time data pipelines using Kafka or similar technologies.Deep understanding of cloud infrastructure, preferably AWS, and containerized deployments using Kubernetes.Proficiency in working with databases (PostgreSQL, ClickHouse, SingleStore, Elasticsearch, or similar) and optimizing data storage for high-scale environments.Experience in building fault-tolerant, high-availability systems.Strong problem-solving skills and a mindset for automation and efficiency.Excellent communication skills and the ability to work in cross-functional teams.Bonus PointsExperience with real-time security and anomaly or threat detection systems.Familiarity with batch and stream processing frameworks.Prior work in high-scale, multi-tenant SaaS environments.Contributions to open-source projects related to real-time data processing.BenefitsWork in a highly professional team. Informal and friendly atmosphere in the teamPaid vacation — 20 business days per year, 100% sick leave paymentEquipment provisionPartially compensated educational costs (for courses, certifications, professional events, etc.)Legal and Accounting support in PolandAbility to work from our comfortable office in Warsaw at Prosta 515 sick days per yearMedical insurance (after the end of the probationary period)Flexible working hours – we care about you (!) and your outputEnglish and Polish classes 2 times a week (online)Bright and memorable corporate life: corporate parties, gifts to employees on significant datesAI Disclaimer We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.