{"id":69441,"url":"https://alion.io/job/appier-senior-software-engineer-backend-development-playable-ads","title":"Senior Software Engineer, Backend Development (Playable Ads)","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":"structured","locations":["Taipei, Taiwan"],"countries":["TW"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":16500,"max_usd":49000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6933},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Apache Kafka","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"ChatGPT","optional":false},{"name":"CI/CD","optional":false},{"name":"Copilot","optional":false},{"name":"Cursor","optional":false},{"name":"Docker","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"GCP","optional":false},{"name":"Go","optional":false},{"name":"Incident Management","optional":false},{"name":"Java","optional":false},{"name":"LLM","optional":false},{"name":"NATS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"RabbitMQ","optional":false},{"name":"SQL","optional":false},{"name":"A/B Testing","optional":true},{"name":"Agile","optional":true}],"status":"live","first_seen_at":"2025-09-22T08:31:08Z","employer_posted_date":"2026-09-21","last_verified_at":"2026-10-17T10:09:05Z","board_verified":true,"closed_at":null,"days_open":390,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":389},"description":"About Appier \nAppier is an AI-native Agentic AI as a Service (AaaS) company that uses artificial intelligence (AI) to power business decision-making. Founded in 2012 with a vision of democratizing AI, Appier’s mission is turning AI into ROI by making software intelligent. Appier now has 17 offices across APAC, Europe and U.S., and is listed on the Tokyo Stock Exchange (Ticker number: 4180). Visit www.appier.com for more information.\nAbout the role\nAppier's Playable Ads team (https://www.appier.com/en/blog/what-is-playable-ads) builds AI-powered playable and video ad experiences that drive dramatically higher engagement and conversion for the world's leading apps and games. We're looking for a Senior Backend Developer with deep expertise in distributed systems and modern backend architecture to design and build the scalable, high-performance services behind these experiences - from creative generation pipelines to the infrastructure that brings our ML models to production. You'll work across microservices, messaging systems, data persistence layers, and system performance optimization, while partnering with ML scientists on MLOps workflows to continuously ship and serve new model versions to end users. You'll also collaborate closely with frontend engineers and product managers to deliver seamless, cross-functional outcomes.\nIf you're passionate about building backend systems that operate at scale, thrive in cross-functional teams, and want your code to directly power AI-driven ad experiences reaching millions of users, we'd love to talk.\nWhat You'll Work On\nArchitect and develop robust, scalable backend services and APIs using ASP.NET Core, owning sizable projects from system design through production operation.\nDesign efficient database schemas and optimize data access logic across SQL and NoSQL data stores.\nImplement message-driven communication with high reliability and fault tolerance.\nPartner with ML scientists to build and maintain MLOps pipelines - including model versioning, deployment, serving, and monitoring - ensuring new models are reliably delivered to production.\nLead system designs, drive technical roadmap decisions, and provide guidance to team members.\nProactively identify performance bottlenecks, profile critical components, and implement scalable solutions.\nOwn and continuously improve system observability, incident management, CI/CD pipelines, and deployment workflows.\nExplore and integrate AI-assisted development tools and emerging technologies to boost team productivity.\nParticipate in on-call rotation to ensure product reliability and scalability.\nWhat We're Looking For \n[Minimum qualifications]\nProficiency in C# and ASP.NET Core, or experience with other object-oriented languages (e.g., Java, Go) with willingness to cross-train in the .NET stack.\nProven experience in distributed systems, microservice architectures, and designing scalable backend systems.\nStrong expertise in PostgreSQL, MongoDB, or equivalent SQL/NoSQL databases, with hands-on experience in ORM frameworks such as Entity Framework Core.\nAdvanced knowledge of message broker systems such as RabbitMQ, Kafka, or NATS.\nIn-depth understanding of 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