{"id":3058477,"url":"https://alion.io/job/phoenixdx-senior-outsystems-developer","title":"Senior OutSystems Developer","company":{"id":2355380,"name":"PhoenixDX","domain":"phoenix-dx.com","url":"https://alion.io/company/phoenix-dx","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Enterprise Apps","role_family":"Enterprise Apps","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":["Ho Chi Minh City, Vietnam"],"countries":["VN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":11000,"max_usd":29000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":1499},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"Cordova","optional":false},{"name":"Firebase","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"Offline-First","optional":false},{"name":"Rest API","optional":false},{"name":"SOAP","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-22T02:14:52Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-23T14:13:14Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"About PhoenixDX\nPhoenixDX is an AI-powered custom software development and innovation company, and a leading Gold-level OutSystems partner in APAC. Part of Alan Allman Associates, we are a team of 140+ engineers, developers, UX designers, solution architects, business analysts, testers and technical leads across Australia, the Philippines and Vietnam.\nOur engineers build with AI as a matter of course, from our AWS and OutSystems foundations to our dedicated AI-native engineering hub in Ho Chi Minh City: the AI-First Hub this role joins. We build mission-critical software for our clients. Our work spans custom core systems, mobile apps, legacy modernisation, and agentic AI and automation. \nWhat you will do...\nThis role sits in our AI-First Innovation Hub: squads where agents carry the delivery volume and people direct, review and own the calls that matter. The toolchain itself is AI-powered: an agentic code-generation pipeline, AI-assisted modernisation tooling and AI-native product features, all on a single Source of Truth with human gates wherever work touches production. We are hiring a Senior OutSystems Developer to design, build and ship native mobile apps. You will own features end to end: data model, offline sync, native plugins, integrations, store builds and production support.\nMobile Delivery\nBuild native mobile applications in OutSystems 11, from user stories through to production release.\n\nDesign offline-first features, including local storage entities, synchronization patterns (read-only, last-write-wins, conflict detection), and OfflineDataSync flows.\n\nManage online and offline application states clearly, ensuring users understand what is saved locally and what has been synchronized.\n\nIntegrate and configure native device capabilities, including camera, barcode scanning, geolocation, maps, biometrics, file handling, and push notifications via Firebase Cloud Messaging.\n\nOptimize application performance on real devices through effective use of screen lifecycle events, client-side versus server-side actions, aggregate fetch strategies, and minimal server round-trips\nArchitecture and Integration\nFollow the 4-Layer Canvas architecture and maintain clean module dependencies.\n\nConsume and expose REST and SOAP APIs with appropriate authentication (OAuth 2.0 / JWT), error handling, and retry mechanisms.\n\nImplement third-party integrations with SaaS platforms and legacy systems.\n\nDevelop efficient aggregates and advanced SQL queries for large datasets, incorporating appropriate indexing and pagination.\n\nApply security-by-design principles, including role-based access control, Single Sign-On (SSO), secure local storage, and secure integrations.\n\nQuality Assurance and Production Support\nReview AI agent-generated code and participate in peer code reviews to ensure alignment with OutSystems best practices.\n\nManage Mobile Apps Build Service (MABS) builds, including signing certificates, provisioning profiles, keystores, and build troubleshooting.\n\nSupport QA testing and resolve defects across development, testing, and production environments.\n\nDebug applications on physical devices using native IDE tools and remote web inspectors.\n\nProvide production support for mobile applications, investigate incidents and plugin or build-related issues, and implement root-cause fixes.\n\nTeam Collaboration and Delivery\nFollow OutSystems development best practices, coding standards, and team conventions.\n\nParticipate in requirements gathering and design review sessions with Business Analysts (BAs) and client stakeholders.\n\nProvide effort estimates, proactively identify risks, and recommend solutions to the Technical Lead and Product Owner.\n\nPrepare technical documentation, knowledge articles, and reusable components to support team efficiency and knowledge sharing.\n\nWho you are...\nMinimum 5 years of hands-on OutSystems development experience, including at least 3 years working with OutSystems 11 Reactive Web and Mobile.\n\nStrong understanding of OutSystems architecture patterns and application performance optimization.\n\nHands-on experience configuring, maintaining, and troubleshooting Cordova plugins, including on-device debugging.\n\nExperience with Mobile Apps Build Service (MABS), including resolving signing certificate and provisioning issues.\n\nSolid knowledge of OutSystems architecture principles, including the 4-Layer Canvas, dependency management, and LifeTime deployment.\n\nAt least one current OutSystems 11 certification, such as Associate Mobile Developer or Reactive Developer.\n\nTechnical Skills\nStrong proficiency in JavaScript, HTML5, and CSS within OutSystems, including JavaScript nodes, client-side APIs, OutSystems UI patterns, and theme customization.\n\nFamiliarity with JavaScript frameworks.\n\nStrong understanding of relational databases and schema design, with advanced SQL experience in production environments, preferably SQL Server or Oracle.\n\nExperience developing, integrating, and supporting REST and SOAP APIs, including OAuth 2.0 and JWT authentication.\n\nKnowledge of GraphQL is an advantage.\n\nExperience identifying and resolving cross-browser and cross-device compatibility issues.\n\nEducation and Communication\nBachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.\n\nFluent in written and spoken English, with the ability to communicate effectively with clients and distributed teams.","description_format":"text","description_chars":5436,"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":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-22T05:04:11Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring 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