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Sr. Full-Stack Mobile & Cloud Engineer - Washington, DC (Hybrid)

Sr. Full-Stack Mobile & Cloud Engineer - Washington, DC (Hybrid)

Floga TechnologiesWashington, DC, United States
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Role : Sr. Full-Stack Mobile & Cloud Engineer (Native iOS / Android + AWS / Azure BFF)

Location : Washington, DC (Hybrid)

Duration : Long term

Important Note :

  • We have shifted to adopting SAFe and
  • Encourage Contractors trained in SAFe
  • Request that contractors have camera available and on majority of the time
  • Set expectations that they are part of Agile team on which we need them to embrace self-management and self-organization in terms of their iteration commitments, capacity planning, capacity allocation, etc.
  • As long as they can come DC on need basis and attend the important SAFe ceremonies like PI onsite.

Overview

Amtrak Digital Technology is seeking a Senior Full-Stack Mobile & Cloud Engineer experienced in designing and developing native iOS and Android applications that interface with modern AWS and Azure-based back-end architectures. This role focuses on delivering mobile-first, cloud-native solutions that power the next generation of Amtrak's operational and passenger applications for conductors, onboard staff, and customer service agents. The ideal candidate combines hands-on experience with Swift / SwiftUI, Kotlin / Jetpack Compose, and AngularJS / Angular front-end development with experience in AWS ECS Fargate, Lambda, Aurora PostgreSQL, and Back-End for Front-End (BFF) frameworks such as Spring Boot, NodeJS, and Apache Camel.

Key Responsibilities

Mobile App Development (iOS & Android)

  • Design and develop native iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose) applications.
  • Integrate with AWS Cognito User & Device Pools, MSAL (Azure AD), and enterprise SSO.
  • Implement peer-to-peer communication APIs (MultipeerConnectivity, Nearby Connections).
  • Build indoor wayfinding experiences using CoreLocation, iBeacon, ARKit (iOS) and ARCore (Android).
  • Extend functionality to Apple Watch and Wear OS devices using SwiftUI and Compose frameworks.
  • Leverage BNNS (Basic Neural Network Subroutines) and Android NNAPI for on-device intelligence.

    • BFF (Back-End for Front-End) Architecture

  • Architect and develop BFF microservices using Spring Boot (Java 21+) or NodeJS (22+) running on AWS ECS Fargate.
  • Shape and aggregate data from multiple sources (MQ, MuleSoft, Oracle, SQL Server, DataBricks) into mobile-optimized JSON APIs.
  • Use GraphQL, REST, or AppSync patterns to deliver adaptive payloads to client apps.
  • Implement Apache Camel for routing, transformation, and integration with Kafka, Kinesis, SQS, and SNS.
  • Manage API versioning, schema evolution, and delta synchronization optimized for low-bandwidth environments.

    • Cloud and Data Integration

  • Build and maintain AWS Lambda (NodeJS & Java) microservices for real-time and event-driven workflows.
  • Work with Aurora PostgreSQL, DynamoDB, and Redis for hybrid persistence and caching layers.
  • Develop streaming integrations using AWS Kinesis and Kafka for event ingestion.
  • Design secure, observable, and scalable cloud architectures using AWS CloudWatch, CloudTrail, and X-Ray.

    • DevOps & CI / CD- Implement automated build and deployment pipelines using AWS CodeBuild, CodeDeploy, CodePipeline, and Bitrise for native iOS and Android.

  • Manage container orchestration on AWS ECS Fargate.
  • Define and monitor CloudFormation / CDK or Terraform infrastructure as code.
  • Apply continuous integration and delivery practices aligned with Amtrak's enterprise DevSecOps standards.
  • Experience with Dynatrace for end-to-end application monitoring (nice to have).

    • Agile / SAFe Collaboration

  • Operate within a SAFe Agile framework, contributing to PI Planning, backlog grooming, sprint execution, and retrospectives.
  • Collaborate with Product Owners, Architects, and Middleware teams to ensure alignment between mobile UX and backend capabilities.
  • Participate in technical design reviews, security assessments, and architecture councils.

    • Required Technical Skills

  • Languages : Swift, Kotlin, TypeScript, Java 21+, NodeJS 22+, SQL / PLpgSQL
  • Frameworks : SwiftUI, Jetpack Compose, Spring Boot, ExpressJS / NestJS, AngularJS / Angular
  • Cloud Services : AWS ECS Fargate, Lambda, API Gateway, Cognito, SQS / SNS, Kinesis, Redis, Aurora PostgreSQL, DynamoDB, CloudWatch, CloudTrail, Azure AD / MSAL
  • Integration : Apache Camel, Kafka, MuleSoft, REST, GraphQL, AppSync
  • DevOps : AWS CodeDeploy, CodePipeline, CloudFormation / CDK, Bitrise, GitHub Actions, Azure DevOps, Dynatrace (nice to have)
  • Tools : JIRA, Confluence, XRay, GitHub Enterprise, Postman, Docker

    • Required Experience

  • Experience integrating mobile apps with real-time operational systems (e.g., seat reservations, onboard data capture, safety / aware systems).
  • Proven ability to bridge mobile UI with complex enterprise middleware (AWS / Azure / MuleSoft).
  • Familiarity with Intune MDM and enterprise mobility management (eMD device management).
  • Experience with P2P, offline-first, and low-latency design patterns for mobile field operations.
  • Strong understanding of AWS and Azure hybrid cloud interoperability.Soft Skills & Mindset
  • Strategic, mobile-first thinker with a passion for cloud innovation and modern DevOps.
  • Collaborative and adaptable thrives in large, multi-disciplinary Agile programs.
  • Detail-oriented and proactive in identifying risks, optimizations, and scalability opportunities.
  • Clear communicator capable of translating technical designs into actionable user stories and deliverables.
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