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Open nowPosted 39 hours ago

Senior OutSystems Developer

PhoenixDX6 open roles

Where
Ho Chi Minh Vietnam
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Your applicationOpen nowSenior OutSystems DeveloperPhoenixDX · Ho Chi Minh Vietnam

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on PhoenixDX's own form.

The reply lands in your private mailbox

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The clock on this job

Early applications get read.

11.8% of postings close within 7 days. Measured by our own scanner across the market. PhoenixDX postings stay open a median of 2 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.4%3 days
  3. 11.8%7 days
  4. 18.6%14 days
  5. 35.6%30 days
  6. 45.1%60 days
This job: posted 39 hours ago

PhoenixDX median: 2 days open

The posting

About PhoenixDX

PhoenixDX 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.

Our 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.

What you will do...

This 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.

Mobile Delivery

  • Build native mobile applications in OutSystems 11, from user stories through to production release.
  • Design offline-first features, including local storage entities, synchronization patterns (read-only, last-write-wins, conflict detection), and OfflineDataSync flows.
  • Manage online and offline application states clearly, ensuring users understand what is saved locally and what has been synchronized.
  • Integrate and configure native device capabilities, including camera, barcode scanning, geolocation, maps, biometrics, file handling, and push notifications via Firebase Cloud Messaging.
  • Optimize 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

Architecture and Integration

  • Follow the 4-Layer Canvas architecture and maintain clean module dependencies.
  • Consume and expose REST and SOAP APIs with appropriate authentication (OAuth 2.0 / JWT), error handling, and retry mechanisms.
  • Implement third-party integrations with SaaS platforms and legacy systems.
  • Develop efficient aggregates and advanced SQL queries for large datasets, incorporating appropriate indexing and pagination.
  • Apply security-by-design principles, including role-based access control, Single Sign-On (SSO), secure local storage, and secure integrations.

Quality Assurance and Production Support

  • Review AI agent-generated code and participate in peer code reviews to ensure alignment with OutSystems best practices.
  • Manage Mobile Apps Build Service (MABS) builds, including signing certificates, provisioning profiles, keystores, and build troubleshooting.
  • Support QA testing and resolve defects across development, testing, and production environments.
  • Debug applications on physical devices using native IDE tools and remote web inspectors.
  • Provide production support for mobile applications, investigate incidents and plugin or build-related issues, and implement root-cause fixes.

Team Collaboration and Delivery

  • Follow OutSystems development best practices, coding standards, and team conventions.
  • Participate in requirements gathering and design review sessions with Business Analysts (BAs) and client stakeholders.
  • Provide effort estimates, proactively identify risks, and recommend solutions to the Technical Lead and Product Owner.
  • Prepare technical documentation, knowledge articles, and reusable components to support team efficiency and knowledge sharing.

Who you are...

  • Minimum 5 years of hands-on OutSystems development experience, including at least 3 years working with OutSystems 11 Reactive Web and Mobile.
  • Strong understanding of OutSystems architecture patterns and application performance optimization.
  • Hands-on experience configuring, maintaining, and troubleshooting Cordova plugins, including on-device debugging.
  • Experience with Mobile Apps Build Service (MABS), including resolving signing certificate and provisioning issues.
  • Solid knowledge of OutSystems architecture principles, including the 4-Layer Canvas, dependency management, and LifeTime deployment.
  • At least one current OutSystems 11 certification, such as Associate Mobile Developer or Reactive Developer.

Technical Skills

  • Strong proficiency in JavaScript, HTML5, and CSS within OutSystems, including JavaScript nodes, client-side APIs, OutSystems UI patterns, and theme customization.
  • Familiarity with JavaScript frameworks.
  • Strong understanding of relational databases and schema design, with advanced SQL experience in production environments, preferably SQL Server or Oracle.
  • Experience developing, integrating, and supporting REST and SOAP APIs, including OAuth 2.0 and JWT authentication.
  • Knowledge of GraphQL is an advantage.
  • Experience identifying and resolving cross-browser and cross-device compatibility issues.

Education and Communication

  • Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
  • Fluent in written and spoken English, with the ability to communicate effectively with clients and distributed teams.
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