{"id":838566,"url":"https://alion.io/job/titanos-senior-backend-engineer-ruby-on-rails","title":"Senior Backend Engineer (Ruby on Rails)","company":{"id":689008,"name":"Titan OS","domain":"titanos.tv","url":"https://alion.io/company/titanos","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":100,"open_postings":3,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":15,"computed_at":"2026-10-01T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":53000,"max_usd":103000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":13},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Kubernetes","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"SQL","optional":false},{"name":"Ruby","optional":true}],"status":"live","first_seen_at":"2026-09-30T10:05:56Z","employer_posted_date":"2026-09-30","last_verified_at":"2026-10-01T13:44:44Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":1},"description":"Is this you?\nTitan Operating System S.L. (Titan OS), the Barcelona-based technology, entertainment, and advertising company, is looking for you!\nAt TitanOS, we live by three core values:\nMake things happen - We take ownership, move fast, and deliver impact.\nNo ego - We collaborate with respect and humility to reach shared goals.\nShow genuine passion - We love what we do and never stop learning.\nCulture and environment are at the heart of our ethos. If the above resonates with you, keep reading because we believe you could be a perfect addition to our incredible team!\nRole overview:\nWe are looking for a Senior Backend Engineer with a deep understanding of server-side technologies and a passion for building highly scalable systems that power industry-leading applications. You will be responsible for designing, developing, and maintaining the backend infrastructure that drives our products and services, ensuring they are secure, reliable, and performant.\nYou’ll be instrumental in architecting and delivering robust solutions that power the core functionality of our business. This role is for someone who thrives on solving complex problems and is driven by the desire to contribute to a high-impact product every day.\nKey responsibilities\nDesigning and developing highly scalable backend services and APIs to support front-end applications and third-party integrations.\nBuilding and maintaining databases, ensuring data is stored securely and can be accessed efficiently.\nCollaborating with front-end developers, DevOps, and product teams to define and implement new features.\nOptimising the performance and reliability of server-side code to ensure seamless user experiences.\nEnsuring the security of backend systems through the implementation of best practices and security protocols.\nWriting clean, maintainable, and well-documented code, adhering to industry standards and team best practices.\nMonitoring and troubleshooting production systems, ensuring high availability and rapid response to issues.\nParticipating in code reviews and contributing to the continuous improvement of development processes.\nRequirements\nWhat makes you a great fit:\n+7 years of professional experience as a Backend Engineer, working on large-scale systems.\nProficiency in Ruby on Rails.\nStrong knowledge of database systems (SQL and NoSQL), with experience in designing efficient data architectures.\nExperience with cloud platforms like AWS, GCP, or Azure, and familiarity with containerization tools like Docker and Kubernetes.\nSolid understanding of RESTful API design and development, including experience integrating third-party services.\nA strong focus on performance optimization, scalability, and security.\nExcellent problem-solving skills and attention to detail.\nA Bachelor’s degree in Computer Science, Software Engineering, or a related field is preferred but not required.\nStrong communicator and fluent in English\nBenefits\nReasons to apply:\nCompetitive compensation\nPrivate health insurance\nFriendly, diverse, and international work environment\nOpportunity to work outside of your comfort zone and develop professionally in an exciting and fast-growing CTV industry.\nChange the future of TV! A unique opportunity to join a well-funded, high-growth company in the early stages to help shape a product/business that will impact millions.\nIf you're excited about this position, don’t hesitate to apply. We’re waiting for you to join us! And if you want to know more about us, follow us on LinkedIn!","description_format":"text","description_chars":3505,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Health insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Operating Systems","Streaming & OTT Platforms"],"lifecycle":[{"event":"open","at":"2026-09-12T20:26:26Z"}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":15,"reasons":["conf:6","velocity","win:early"],"computed_at":"2026-10-01T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/titanos-senior-backend-engineer-ruby-on-rails","json_url":"https://alion.io/job/titanos-senior-backend-engineer-ruby-on-rails.json","meta":{"generated_at":"2026-10-01T19:39:58Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2329,"day_limit":5000,"remaining_today":2671,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}