{"id":69454,"url":"https://alion.io/job/appier-senior-backend-engineer-sre-reliability-performance","title":"Senior Backend Engineer (SRE / Reliability & Performance)","company":{"id":177717,"name":"Appier","domain":"appier.com","url":"https://alion.io/company/appier-2","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":85,"open_postings":62,"ghost_share":0.161,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":281,"computed_at":"2026-10-17T05:46:00Z"}},"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":"explicit","locations":["Taipei, Taiwan"],"countries":["TW"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":17000,"max_usd":50000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6933},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"GCP","optional":false},{"name":"Git","optional":false},{"name":"Go","optional":false},{"name":"Grafana","optional":false},{"name":"GraphQL","optional":false},{"name":"Incident Management","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Scala","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"SQL","optional":false},{"name":"SRE","optional":false},{"name":"Ansible","optional":true},{"name":"ArgoCD","optional":true},{"name":"Configuration Management","optional":true},{"name":"Docker","optional":true},{"name":"GitHub Actions","optional":true},{"name":"GitLab CI","optional":true},{"name":"HAProxy","optional":true},{"name":"Jenkins","optional":true},{"name":"Kubernetes","optional":true},{"name":"Nagios","optional":true},{"name":"Nginx","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-07-06T09:51:00Z","employer_posted_date":"2026-09-21","last_verified_at":"2026-10-17T16:12:03Z","board_verified":true,"closed_at":null,"days_open":103,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":102},"description":"About Appier\nAppier (TSE: 4180) is an AI-native Agentic AI as a Service (AaaS) company that empowers businesses to create value through cutting-edge AdTech and MarTech solutions. Founded in 2012 with the vision of \"Making AI Easy by Making Software Intelligent,\" Appier helps businesses turn AI into ROI through its Ad Cloud, Personalization Cloud, and Data Cloud-each powered by Agentic AI that enables autonomous, adaptive, and real-time decision-making. Today, Appier operates 17 offices across APAC, the US, and EMEA, and is listed on the Tokyo Stock Exchange. Learn more at www.appier.com.\nAbout the role\nEngineers at Appier build a wide range of platforms and services that interconnect data and AI with our customers and users-operating at scale where every millisecond and every nine of availability matters. As a Senior Backend Engineer (SRE / Reliability & Performance), you will sit at the intersection of backend development and site reliability engineering: designing and building scalable, performant backend services while owning the reliability, observability, and performance characteristics of large-scale, high-traffic systems (QPS > 10k). You will profile and tune systems end to end, lead the response to production incidents, and drive the engineering practices that keep our services fast and resilient as traffic grows. Seniority and title are determined by job-related skills, experience, and evaluation following the interview. We welcome international candidates to our teams. This position is ideally to be based in Taiwan.\nResponsibilities\nDesign and build scalable, reliable, and maintainable backend services and the components that support them\nOwn system reliability and performance for high-traffic services, including SLO/SLA definition, error budgets, and capacity planning\nProfile, benchmark, and tune critical components to resolve latency, throughput, and scalability bottlenecks in medium-to-large systems (QPS > 10k)\nDiagnose and solve production traffic problems-load spikes, hot paths, resource contention, and cascading failures\nLead system design and provide technical guidance on reliability and performance trade-offs\nContinuously improve observability (logging, metrics, tracing), incident management, DevOps, and production operational SOPs\nLead incident response, troubleshooting, and blameless post-mortems, then drive the follow-up engineering work\nBuild and optimize CI/CD pipelines and deployment automation to ship safely and frequently\nLead code reviews to ensure high quality coding and operational standards\nMentor engineers and facilitate agile collaboration across cross-functional teams\nParticipate in on-call rotation to ensure product reliability and scalability\nAbout you\n[Minimum qualifications]\n5+ years of experience in backend software development, with hands-on SRE / reliability / infrastructure responsibilities\nProven experience tuning system reliability and performance for production services\nDemonstrated experience solving traffic and scalability problems in medium-to-large systems\nAbility to build and operate web services on Linux\nProficient in one or more of the following languages: Go / Python / Java / Scala / C++\nGood knowledge of Network API design (e.g. REST or GraphQL)\nGood understanding of SQL/NoSQL databases (MySQL / PostgreSQL / MongoDB / Redis / etc.)\nHands-on experience with observability tooling (e.g. Prometheus, Grafana, distributed tracing)\nFamiliar with AWS, GCP, or Azure\nFamiliar with Git\nProactive, with strong interpersonal and problem-solving skills\n[Preferred qualifications]\nBS/MS degree in Computer Science or related field\nTechnical leadership experience, such as mentoring engineers and facilitating agile processes\nStrong skills with profiling and debugging tools, and building high-performance network services on Linux\nExperience designing and architecting large-scale distributed systems and implementing distributed algorithms and data structures\nExperience with container orchestration (Kubernetes, Docker) and infrastructure-as-code / configuration management (Terraform, Ansible)\nHands-on experience with CI/CD platforms (Jenkins, GitLab CI, GitHub Actions, ArgoCD)\nExpert in some of the following CS domains:\nNginx / HAProxy and load balancing\nCaching strategies and data-intensive application design\nMonitoring and alerting systems (Prometheus / Nagios)\nCapacity planning and chaos / resilience engineering\nOperation automation\nContinuous integration / continuous deployment","description_format":"text","description_chars":4494,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Taiwan","iso":"TW","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Machine Learning","Advertising","Marketing & Sales AI"],"lifecycle":[{"event":"open","at":"2026-07-06T09:51:00Z"}],"visa":[],"liveness":{"score":64,"band":"ok","label":"Likely open","p_open":1,"p_active":0.883,"p_room":0.72,"age_days":102,"expected_fill_days":281,"reasons":["conf:2","velocity","win:mid","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/appier-senior-backend-engineer-sre-reliability-performance","json_url":"https://alion.io/job/appier-senior-backend-engineer-sre-reliability-performance.json","meta":{"generated_at":"2026-10-17T16:25:27Z","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":22594,"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":177717},"rest":"https://alion.io/mcp/rest/get_company?id=177717"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fappier-senior-backend-engineer-sre-reliability-performance"},{"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%2Fappier-senior-backend-engineer-sre-reliability-performance"},{"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%2Fappier-senior-backend-engineer-sre-reliability-performance"},{"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/appier-senior-backend-engineer-sre-reliability-performance\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fappier-senior-backend-engineer-sre-reliability-performance"}]}