{"id":3735171,"url":"https://alion.io/job/zalo-software-engineer-media","title":"Software Engineer, Media","company":{"id":183385,"name":"Zalo","domain":"zalo.me","url":"https://alion.io/company/zalo-2","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":{"grade":"B","score":80,"open_postings":24,"ghost_share":0,"stale_share":0.583,"repost_share":0,"time_to_fill_p50_days":83,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Ho Chi Minh City, Vietnam"],"countries":["VN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"TCP/IP","optional":false},{"name":"Apache Kafka","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"gRPC","optional":true},{"name":"RabbitMQ","optional":true}],"status":"live","first_seen_at":"2026-11-04T09:17:54Z","employer_posted_date":"2026-11-04","last_verified_at":"2026-11-06T05:49:56Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"What you will do\nDesign, develop, test, and maintain backend services and RESTful APIs using Java to support applications serving millions of daily active users. \nBuild scalable, reliable, and maintainable backend services to support high-traffic applications with high throughput and low latency requirements. \nDesign and optimize database queries, data models, and caching strategies using SQL, NoSQL to improve system performance. \nMonitor system performance, identify bottlenecks, troubleshoot production issues, and improve service stability and availability.\nWork with microservices, RPC frameworks, message queues, and distributed caching systems to build reliable and efficient backend services. \nWrite clean, maintainable, and well-tested code. Participate in code reviews and follow engineering best practices. \nWork with Linux-based environments, monitoring tools, and deployment pipelines to support development, deployment, and operation of backend services. \nCollaborate with Product Owner, Frontend/Mobile Engineers, and other teams to deliver features that meet business and technical requirements.\nWhat you need\nQualifications\nBachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field, or equivalent practical experience. \nAt least 2 years of professional experience in backend software development. \nTechnical Skills\nGood proficiency in Java, object-oriented programming, common design patterns, exception handling, collections, and Java concurrency fundamentals. \nSolid understanding of common data structures, algorithms, time and space complexity, and problem-solving techniques. \nHands-on experience with SQL databases such as MySQL or PostgreSQL. Understanding of indexing, transactions, query optimization, and database design. \nExperience with Redis or other caching systems. Basic understanding of NoSQL databases and their use cases. \nExperience developing RESTful APIs and understanding HTTP, TCP/IP, authentication, and common networking concepts. \nUnderstanding of microservices, service-to-service communication, distributed systems, and basic system design principles. \nNice to Have\nExperience working with high-traffic systems serving millions of daily active users. \nFamiliarity with RPC frameworks such as gRPC or Thrift. \nExperience with message brokers such as Kafka or RabbitMQ. \nUnderstanding of Docker, CI/CD pipelines, and monitoring tools. \nExperience analyzing application performance, memory usage, thread contention, and database bottlenecks.","description_format":"text","description_chars":2533,"description_truncated":false,"requirements":{"experience_years_min":2,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Messaging Apps","Social Networks"],"lifecycle":[{"event":"open","at":"2026-11-04T09:17:54Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":1,"expected_fill_days":83,"reasons":["conf:0","stale_co","velocity","win:early","comp:junior"],"computed_at":"2026-11-06T05:58:05Z"},"pay":null,"html_url":"https://alion.io/job/zalo-software-engineer-media","json_url":"https://alion.io/job/zalo-software-engineer-media.json","meta":{"generated_at":"2026-11-06T06:55:12Z","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":12258,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"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":183385},"rest":"https://alion.io/mcp/rest/get_company?id=183385"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fzalo-software-engineer-media"},{"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%2Fzalo-software-engineer-media"},{"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%2Fzalo-software-engineer-media"},{"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/zalo-software-engineer-media\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fzalo-software-engineer-media"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3735171}},{"tool":"search_jobs","arguments":{"company":"zalo.me","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3735171},"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); https://alion.io/mcp with an Alion account has everything. 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