Senior Full Stack Engineer (Frontend-Focused / Modern JS)

About Our Client

With our client, we're nurturing wellbeing—one ride, one visit, one moment of connection at a time. Their door-through-door Companion services and transportation management platform help individuals with mobility and cognitive challenges access healthcare, community resources, and daily essentials. We work with healthcare systems, PACE programs, public transportation agencies, and health plans to improve care access, reduce missed appointments, and relieve the burden of caregiving.

If you thrive in fast-moving environments, want to help shape a category-defining business, and be part of a high-performing team, we want to talk.

Our platform is built on a mature Ember.js frontend backed by Ruby on Rails . While our web client runs on Ember.js, we are looking for a strong Frontend-Focused Engineer with deep expertise in structured, modern JavaScript frameworks ( React / Vue.js) who can leverage those core architectural principles to quickly ramp up on Ember.js.

Responsibilities

- Frontend Development (Primary Focus ~75%): Design, develop, and maintain responsive, accessible, and intuitive user interfaces. Translate product requirements and UX designs into production-ready features.
- Architecture & Performance: Participate in frontend architecture discussions, performance optimization, and technical decision-making to keep the application scalable and maintainable.
- Backend Collaboration (~25%): Partner with Rails engineers on API design and data flows. Contribute to backend features when frontend work intersects with the server or when full-stack capabilities are needed.



Knowledge of Ruby-on-Rails is not a must however this is the framework you will also be working with.
- Collaboration & Delivery: Partner with Product Management and fellow engineers to convert product requirements into Agile user stories, write clean code, and deliver fully tested features on time.
- Engineering Excellence: Write clean, maintainable, and testable code, perform code reviews, and help maintain engineering standards and team culture.

Requirements

- Proven Experience: 6+ years of hands-on experience delivering software applications in production environments (healthcare or transportation industry experience is a plus).
- Frontend Mastery: Strong proficiency in modern JavaScript/TypeScript and deep experience with full-featured modern frameworks— React or Vue.js backgrounds are also welcome.
- Willingness to Learn Ember.js: Acknowledgment and enthusiasm to learn and contribute to an Ember.js codebase (prior Ember experience is a plus, but not required ).
- Back-End Expertise: Experience working with Ruby on Rails and postgres DB , GraphQL APIs etc.
- Customer-Centric Mindset: Passionate about creating intuitive, simple user experiences.
- Agile Workflow: Comfortable working in Agile environments (Scrum or Kanban), participating in code reviews, and collaborating closely with cross-functional teams.

What Success Looks Like In your first few months, you will:

- Ramp up on our tech stack and start delivering production-ready frontend features (with guidance on Ember.js patterns if new to the framework).
- Collaborate on API contracts and contribute to backend touchpoints (Rails) when needed.
- Improve user experience, application responsiveness, and frontend code quality.
- Participate actively in technical discussions, code reviews, and process improvements.

📌 Senior Full Stack Engineer (Argentina)
🏢 CloudGeometry
📍 Argentina