{"id":3567516,"url":"https://alion.io/job/ciklum-expert-back-end-engineer","title":"Expert Back End 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":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bulgaria"],"countries":["BG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":46000,"max_usd":89000,"period":"year","method":"role_seniority_country_cell","sample_n":8},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Kubernetes","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-21T14:23:08Z","employer_posted_date":"2026-10-21","last_verified_at":"2026-11-01T16:03:52Z","board_verified":true,"closed_at":null,"days_open":11,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":11},"description":"Ciklum is looking for an Expert Back End Engineer to join our team full-time in Bulgaria.\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 an Expert Back End Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. We're building the financial infrastructure that powers the next generation of B2B commerce. Our platform enables businesses to streamline payments, automate financial workflows, and deliver exceptional purchasing experiences.\nResponsibilities:\nTake ownership of the entire software development lifecycle-from ideation and architecture through implementation, testing, deployment, and ongoing production support\nParticipate in architecture discussions and contribute to long-term technical strategy and platform evolution\nContribute to how we shift towards agentic software development lifecycle\nSupport Client’s rapid business growth\nCollaborate closely with Product Managers, Designers, Data teams, fellow engineers and other stakeholders\nMentor and support fellow engineers through technical guidance, knowledge sharing, and collaborative problem-solving\nRequirements:\nYou’re curious about and actively experimenting with how AI changes Software Development Lifecycle\n7+ years of experience building production-grade backend applications, preferably Node\nExperience designing and building RESTful APIs and service-oriented architectures\nSignificant practical experience building distributed systems\nHands-on experience with large-scale production databases, including PostgreSQL and/or MongoDB\nStrong knowledge of data modeling, indexing, query optimization, and database performance tuning\nExperience working with AWS cloud services\nExperience with Docker, Kubernetes, and/or serverless architectures\nExperience building and maintaining CI/CD pipelines\nSolid understanding of software architecture, clean code principles, and design patterns\nExperience working in Agile development environments\nFrontend experience with React or similar frameworks is an advantage\nBachelor's degree in Computer Science, Software Engineering, or a related field is an advantage\nWhat’s in it for you?\nRegular salary reviews based on performance\nCorporate events: webinars, offline parties, and meetups\nInternal Mobility Program\nTailored education path (including full access to Udemy, certifications, etc.)\n25 paid days off: 20 business days of vacation per calendar year + 5 undocumented sick leave days\nAdditional health insurance\n100% company-covered Multisport card, with discounts available for family members\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.\nSince expanding to Bulgaria in 2022, we’ve been building a fast-growing team that thrives on learning, collaboration, and innovation. Join us on this exciting journey and help shape the future of our delivery center.\nExplore, empower, engineer with Ciklum!\nInterested already? We would love to get to know you! Submit your application. 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