{"id":2496856,"url":"https://alion.io/job/twin-harbour-interactive-senior-backend-engineer","title":"Senior Backend Engineer","company":{"id":452199,"name":"Twin Harbour Interactive","domain":"twinharbourinteractive.com","url":"https://alion.io/company/twin-harbour-interactive","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"A","score":95,"open_postings":7,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":168,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["St. Julian's, Malta"],"countries":["MT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":32000,"max_usd":95000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6933},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"GitHub","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Gradle","optional":false},{"name":"JavaScript","optional":false},{"name":"MySQL","optional":false},{"name":"Node JS","optional":false},{"name":"PHP","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Redis","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Agile","optional":true},{"name":"Fine-tuning","optional":true},{"name":"Java","optional":true},{"name":"Kanban","optional":true},{"name":"Scrum","optional":true}],"status":"live","first_seen_at":"2026-10-09T07:46:31Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-17T11:18:40Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"Join us as Senior Backend Engineer on our live strategy game Supremacy World War III!\nAt Twin Harbour Interactive we strive to develop high-quality strategy games and make them accessible for all players around the world. In our eyes game development is a promise for fun and entertainment - that’s what we live and aim for!\nAs a Senior Backend Engineer, you will be responsible for designing, building, and enhancing features for our game platform, focusing on our self-build Java game engine that is interfacing with other services written in Java and PHP, which we constantly extend and improve. Our servers are running on a distributed architecture in the Google Cloud. Your work will align with best practices in stability, performance, scalability, security, and maintainability.\nIn this role, you will collaborate closely with game designers, producers, and other stakeholders to implement innovative features that enhance the player experience. For this role, you must be fluent in technical and business English.\nYOUR MISSION\nYou will mainly work on the Java Backend of Supremacy World War III, a live strategy game with with seasonal releases. However, you need to be comfortable with working in other languages - like PHP. And have an understanding of how Javascript/Typescript works.\n\nTake ownership for maintaining and extending the Java Backend and actively drive firefighting and quality initiatives.\n\nProfile and improve performance of a long-running Java game server under live load (GC, threading, slow game loops).\n\nWork safely in a large, mature codebase: refactor step by step, add tests, keep live games stable through seasonal releases.\n\nDefine SLOs, add metrics/tracing/logging, participate in on-call/incident reviews, and continuously harden reliability & performance for live operations.\n\nWork closely with game designers and product leads to implement new features with an interest in learning the complementary full-stack technologies.\n\nCommunicate and collaborate within a cross-functional team and with other teams to ensure a smooth daily workflow.\n\nActively participate in technical decisions influencing the architecture of our services and platform.\n\nMentor and support other engineers through code reviews, pair programming, and knowledge-sharing sessions.\n\nDrive initiatives to enhance the stability, performance, and scalability of our platform and live games.\n\nContribute high-quality, maintainable Java code using a wide range of technologies such as Spring, JUnit5, Gradle, Github, Docker, MySQL, Apache Kafka, Flatbuffers, and Redis.\n\nYOUR BACKSTORY\n7+ years of proven experience in Java development, demonstrating strong coding and debugging skills.\n\nExcellent verbal and written communication skills, with the ability to work effectively in a cross-functional team environment.\n\nDemonstrated ability to effectively integrate AI tools into development workflows for code generation, debugging, and technical research.\n\nGood understanding of Javascript/Typescript and be familiar with or eager to learn other languages - like PHP, Node.js.\n\nExcellent analytical and problem-solving skills.\n\nYou have a proactive attitude towards learning new technologies and improving existing skills, including leaving the comfort zone of your programming language.\n\nYou have experience developing and maintaining multi-server, high-load backend services and APIs.\n\nDeep understanding of computer science fundamentals such as object-oriented design, algorithms, and software architecture patterns.\n\nStrong automated quality mindset using unit testing, integration testing, and other test automation frameworks.\n\nYou are enthusiastic about games and ideally strategy games.\n\nFamiliarity with SQL and NoSQL databases, including MySQL, PostgreSQL, MongoDB, or similar.\n\nExperience in popular Java frameworks such as Spring, Spring Boot, JUnit5, and Gradle.\n\nExperience with cloud platforms (GCP preferred), CI/CD (GitHub Actions), networking, and debugging distributed systems is a plus.\n\nHands-on experience with agile methodologies such as Scrum or Kanban.\n\nWhy You'll Love Working With Us\nA Global Team, A Shared Purpose\nOur strength lies in our diversity. With over 30 nationalities represented across our two locations, we’re united by a shared passion for strategy games and a bold vision for the future. We celebrate what makes each of us unique - our perspectives, our stories, and the paths that led us here.\nWork Your Way\nWhether you're crafting code from a harbor-view desk in Hamburg or fine-tuning design details under the Maltese sun, we support flexible hybrid work models that empower you to do your best work - wherever you are.\nGrow With Us\nAt Twin Harbour, your journey matters. Our Career Path Framework and mentorship culture provide the clarity and feedback you need to take the next step - whether you’re deepening your expertise or branching into new disciplines. We invest in your growth with language courses, e-learning platforms, and support for conferences and training.\nWe’re Human First\nWe believe that great teams are built on trust, respect, and good humor. From game nights to casual drinks, quiz nights, and karaoke, we don’t just work together - we connect, play, and support each other like a true crew.\nJoin Twin Harbour Interactive\nWhere Strategy Meets Vision.\nTwin Harbour Interactive is a global strategy game powerhouse, shaping the future of long-term multiplayer gaming. With offices in Hamburg and Malta, we design strategy games that bring people together - across borders and generations.\nWhether you’re an expert tactician or an imaginative world-builder, there’s a place here for you to grow, thrive, and leave your mark.","description_format":"text","description_chars":5694,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Hybrid work"],"hiring_locations":[{"name":"Malta","iso":"MT","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Games","Game Development"],"lifecycle":[{"event":"open","at":"2026-10-14T04:56:14Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":7,"expected_fill_days":168,"reasons":["conf:14","win:early"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/twin-harbour-interactive-senior-backend-engineer","json_url":"https://alion.io/job/twin-harbour-interactive-senior-backend-engineer.json","meta":{"generated_at":"2026-10-17T14:25:59Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":19447,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":452199},"rest":"https://alion.io/mcp/rest/get_company?id=452199"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftwin-harbour-interactive-senior-backend-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftwin-harbour-interactive-senior-backend-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftwin-harbour-interactive-senior-backend-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/twin-harbour-interactive-senior-backend-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftwin-harbour-interactive-senior-backend-engineer"}]}