{"id":3567581,"url":"https://alion.io/job/ciklum-senior-full-stack-engineer-9","title":"Senior Full Stack Engineer","company":{"id":181259,"name":"Ciklum","domain":"ciklum.com","url":"https://alion.io/company/ciklum","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["CZ"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":82000,"max_usd":209000,"period":"year","method":"global_role_seniority_cell","sample_n":7767},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude Code","optional":false},{"name":"Copilot","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"GraphQL","optional":false},{"name":"Java","optional":false},{"name":"Kotlin","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Trino","optional":false},{"name":"TypeScript","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Docker","optional":true},{"name":"GCP","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-10-14T17:43:32Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-11-01T16:03:52Z","board_verified":true,"closed_at":null,"days_open":18,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":18},"description":"Ciklum is looking for a Senior Full Stack Engineer to join our team full-time in the Czech Republic.\nWe are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.\nAbout the role:\nAs a Senior Full Stack Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. You'll be part of a small, close-knit R&D team that builds features across the whole stack. How much time you spend on frontend versus backend depends on what the feature needs. One week it might be 70/30, the next 60/40, and sometimes you'll take a feature from start to finish. The platform is mature and busy, with peaks of over 20,000 messages per second. The team is AI-first, so tools like Claude Code and GitHub Copilot are simply part of how we develop every day. You will join a long-term engagement with an Israeli company in automotive cybersecurity. Its platform protects millions of connected vehicles and covers vehicle security monitoring, threat detection, and fleet security operations, as well as API security.\nResponsibilities:\nBuild and maintain reliable React/TypeScript frontend components, applying consistent standards for code quality, testing, and reusability\nImplement features end-to-end: React UI through backend services; take ownership from architecture to production\nDesign and optimize PostgreSQL schemas; understand query performance and indexing\nWork with Kafka for event-driven workflows; process and stream thousands of messages per second\nDevelop backend services in Kotlin; contribute to backend design and architecture\nImplement and optimize data queries in data lake (Iceberg/Trino)\nIntegrate GraphQL for client-server communication; understand schema design and performance\nWrite tests across the stack; maintain code quality and reliability standards\nDebug production issues; profile and optimize performance bottlenecks\nCollaborate with frontend engineers and backend architects on design and implementation\nParticipate in code reviews; maintain team standards on both frontend and backend\nUse AI tools such as Claude Code as a natural part of your workflow\nRequirements:\n5+ years of production software development experience\nExpert-level React and TypeScript; deep understanding of component architecture and state management\nStrong algorithmic thinking and system design skills; can review and critique code thoughtfully\nStrong backend experience: Java, Kotlin, or Node.js; but comfortable switching to Kotlin codebase\nPostgreSQL experience; understanding of schema design and query optimization\nExperience with high-scale, resource-constrained systems (20,000+ messages/second processing)\nGraphQL or REST API integration; understanding of client-server contracts\nGit and CI/CD pipelines; familiar with GitHub workflows\nFast learner, independent and a strong team player\nProficient in verbal and written English communication\nNice to have:\nKafka or event-driven architecture experience\nData lake concepts (Iceberg, Trino)\nDocker, Kubernetes (practical understanding)\nMulti-cloud experience (AWS, GCP, Azure)\nMentoring or technical leadership experience\nAutomotive or cybersecurity domain background\nWhat’s in it for you?\nFlexible working hours\nHome office option\n5 weeks of holiday\n5 sick days\nMultisport Card\nMeal allowance\nInternal trainings including workshops and seminars\nPaid certifications and technical as well as soft-skills training\nPossibility to participate in international conferences\nFresh fruit, coffee, and a weekly company breakfast in the office\nLoyalty bonus after 5, 10, 15 and more years with the company\nReferral bonus programme\nCorporate events including team building, outdoor activities, Christmas party, health week, summer ice cream, and more\nHybrid and remote working options available across our Czech offices in Prague, Hradec Králové, and Zlín\nAbout us:\nAt Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.\nWith delivery centers in Prague, Hradec Králové, and Zlín, our Czech team delivers end-to-end solutions across industries. Here, innovation thrives through collaboration, and every idea drives our partners' success.\nExplore, empower, engineer with Ciklum!\nInterested already? We would love to get to know you! Submit your application. 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