{"id":3872507,"url":"https://alion.io/job/quantum-mid-level-java-spring-boot-engineer","title":"Mid-Level Java Spring Boot Engineer","company":{"id":8331,"name":"Quantum","domain":"quantum.com","url":"https://alion.io/company/quantum","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Addis Ababa, Ethiopia"],"countries":["ET"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Hibernate","optional":false},{"name":"Java","optional":false},{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Data JPA","optional":false},{"name":"Spring Security","optional":false},{"name":"SQL","optional":false},{"name":"Apache Kafka","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"Git","optional":true},{"name":"Gmail","optional":true},{"name":"Gradle","optional":true},{"name":"JUnit","optional":true},{"name":"Kotlin","optional":true},{"name":"Linux","optional":true},{"name":"Maven","optional":true},{"name":"Mockito","optional":true},{"name":"RabbitMQ","optional":true},{"name":"Redis","optional":true},{"name":"Spring Cloud","optional":true}],"status":"live","first_seen_at":"2026-11-06T09:24:18Z","employer_posted_date":null,"last_verified_at":"2026-11-06T09:24:18Z","board_verified":false,"closed_at":null,"days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"Mid-Level Java Spring Boot Engineer\nat Quantum Technology PLC\nLOCATION\nAddis Ababa\nEXPERIENCE LEVEL\n2-4 years\nDEADLINE\nNov 16, 2026\nNUMBER OF PEOPLE REQUIRED\n1\nAbout the Role\nWe are seeking a Mid-Level Java Spring Boot Engineer to develop and maintain APIs and backend services, implement business requirements, integrate systems, and resolve defects. You will work with senior engineers, QA and DevOps while taking ownership of well-scoped features.\nKey Responsibilities\nDevelop and maintain Java/Spring Boot applications, REST APIs and business logic.\nImplement backend features from functional requirements and technical designs.\nIntegrate third-party and internal APIs with proper validation and failure handling.\nDevelop database operations with PostgreSQL/MySQL, Spring Data JPA and Hibernate.\nWrite SQL queries, support schema migrations and troubleshoot database issues.\nImplement authentication and authorization using Spring Security and JWT as required.\nWrite unit and integration tests; debug defects and improve code maintainability.\nFollow agreed code conventions, participate in pull-request reviews and maintain API documentation.\nWork with QA and DevOps to support testing, deployment, logging and issue resolution.\nInvestigate application errors in development, UAT and production and escalate complex issues appropriately.\nNice to Have\nMicroservices and integration with payment or financial systems.\nRedis, Kafka or RabbitMQ; CI/CD pipelines and cloud-hosted services.\nSpring Cloud and monitoring/logging tools.\nEmployment and Working Schedule\nFull-time, on-site.\nMonday to Friday: full working days; Saturday: half day; Sunday: off.\nWhat We're Looking For\nAn engineer who takes ownership of features, writes clear, well-tested code, learns quickly and communicates early when a technical issue threatens delivery.\nSalary\nBased on Company scale.\n\nRequirements\n2 to 4 years of professional Java backend development and hands-on Spring Boot experience.\nSolid Java 17+ fundamentals, object-oriented programming and RESTful API development.\nSpring Data JPA/Hibernate, Maven or Gradle, and Git.\nWorking knowledge of PostgreSQL/MySQL and SQL queries.\nFamiliarity with Spring Security, JWT and API authentication.\nExperience with testing tools such as JUnit and Mockito.\nBasic Docker and Linux familiarity and good debugging skills.\nAbility to independently deliver assigned work and collaborate effectively.\nHow to apply\nInterested candidates should send their updated CV and application letter to\n\n with the subject:\n\"Application - Mid-Level Java Spring Boot Engineer\"\n\nApplication Deadline: Nov 15, 2026","description_format":"text","description_chars":2651,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cloud Storage & File Sharing","Backup & Disaster Recovery"],"lifecycle":[{"event":"open","at":"2026-11-06T14:58:30Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":26,"reasons":["seen:1","velocity","win:early"],"computed_at":"2026-11-08T05:47:12Z"},"pay":null,"html_url":"https://alion.io/job/quantum-mid-level-java-spring-boot-engineer","json_url":"https://alion.io/job/quantum-mid-level-java-spring-boot-engineer.json","meta":{"generated_at":"2026-11-08T21:35:43Z","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":45027,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-09T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":8331},"rest":"https://alion.io/mcp/rest/get_company?id=8331"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fquantum-mid-level-java-spring-boot-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fquantum-mid-level-java-spring-boot-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fquantum-mid-level-java-spring-boot-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/quantum-mid-level-java-spring-boot-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fquantum-mid-level-java-spring-boot-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3872507}},{"tool":"search_jobs","arguments":{"company":"quantum.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3872507},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); 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