Senior Software Engineer (Backend)

Senior Software Engineer (Backend) For Digital Hub Warsaw, we are looking for:Senior Software Engineer (Backend)A senior software engineer delivers and integrates software to form a complete service or product. Individuals in this role will:Plan and lead development on sets of related storiesHave an understanding of the whole system and take responsibility for teaching this to othersWork with other disciplines to understand what needs to be builtCoach and mentor more junior colleaguesOperate the production services being builtFind ways to improve system robustness, resilience, and stability Key Tasks & Responsibilities:Programming and BuildCollaborate with others when necessary to review user stories and code and developimplementation approachesUse the agreed implementation approaches to design, code, test, and document programs or scripts of medium-to-high complexity, using the right standards and toolsSystems DesignDesign systems characterized by medium levels of risk, impact, and business or technical complexitySelect appropriate design standards, methods, and tools, and ensure they are appliedeffectivelyReview the systems designs of others to ensure the selection of appropriate technology.efficient use of resources, and integration of multiple systems and technologySystems IntegrationDefine the integration buildCo-ordinate build activities across systemsUnderstand how to undertake and support integration testing activitiesModern Standards ApproachCompetently apply a modern standards approach and guide others to do soInformation SecurityMaintain a strong understanding of information securityDesign solutions and services with security controls embedded, specifically engineered with mitigation of security threats as a core feature.PrototypingApproach prototyping as a team activity, actively soliciting prototypes and testing with othersEstablish design patterns and iterate themUse a variety of prototyping methods and choose the most appropriateService SupportIdentify, locate, and fix faultsUser FocusCollaborate with user researchers and represent users internallyExplain the difference between user needs and the desires of the userChampion user research to focus on all usersPrioritize and define approaches to understand the user story, guiding others in doing soOffer recommendations on the best tools and methods to useAvailability and Capacity ManagementManage service components to ensure they meet business needs and performance targets Qualifications & Competencies (education, skills, experience):Bachelor's degree in Computer Science, Software Engineering, Information Technology or a related field5+ experience as a software engineerProficiency in one or more programming languages such as PythonDeep understanding of software development lifecycle and software developmentmethodologies (e.g .. Agile, Scrum)Proficiency in software design and architectureExtensive experience with version control systems like GitAbility to write clean, maintainable, and efficient codeFamiliarity with integrated development environments (IDEs) like VSCodeKnowledge of software development tools and practices, including continuous integratior and continuous deployment (CI/CD)Advanced understanding of database management and SQL (PostgreSQL) and ORM (SQLAlchemy. SQLModel, Aelmbic)Extensive experience with relational, NoSQL and/or vector databases (MongoDB, Redis pgvector)Experience with microservices architecture and RESTful API design (FastAPI) API Observability - Prometheus, Grafana, Open Telemetry, etcExperience with automated testing frameworks and tools (e.g pytest)Knowledge of cloud platforms (AWS, Azure, Google Cloud)Excellent analytical and problem-solving skillsAbility to work collaboratively in a team environmentExtensive experience with containerization and orchestrations tools (Docker, KubernetesExpertise in a specific area such as machine learning, cybersecurity, or mobile developmentStrong understanding of DevOps practices and toolsAl/Agentic communication protocols (MCP, A2A)Advanced understanding of Asynchronous code (asyncio, httpx, uvicor, ete), SQL Optimization, indexing, query planning Caching (Redis, in-memory, etc)Event-driven systems (Kafka, RabbitMQ, etc.)Proven ability to lead and mentor junior developersStrong understanding of software security principles and best practices What do We offer: A flexible, remote-hybrid work model Great workplace in a new modern office in WarsawCareer development, 360° Feedback & Mentoring programmeWide access to professional development tools, trainings, & conferencesCompany Bonus & Reward Structure VIP Medical Care Package (including Dental & Mental health)Holiday allowance (“Wczasy pod gruszą”)Life & Travel InsurancePension planCo-financed sport card - FitProfitMeals Subsidy in Office Budget for Home Office Setup & MaintenanceAccess to Company Game Room equipped with table tennis, soccer table, Sony PlayStation 5 and Xbox Series X consoles setup with premium game passes, and massage chairsTailored-made support in relocation to Warsaw when neededPlease send your CV in English WORK LOCATION: WARSAW AL. JEROZOLIMSKIE 158