Senior Fullstack Engineer (Ruby+React)
W
WalterCreator economy
Brazil. Poland. Mexico, EST or compatible timezone Eastern North America through Western/Central Europe), with strong overlap to a EST/CET working dayContractSenior
Salary not disclosed
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Job Details
- Experience
- 7+ years
- Required Skills
- PostgreSQLRuby on RailsRedisReactGitHub
Requirements
- 7+ years of full-stack engineering experience, with substantial production work in Ruby on Rails and React
- Comfortable in a Rails monolith of meaningful size
- Strong with Postgres (writing efficient queries, understanding indexing, reasoning about migrations on a live database) and familiar with Redis in a caching or background-job context
- Experience working with React in a production app (component patterns, state management, integrating with a Rails backend)
- You've worked on apps where real-time features, multi-tenancy, or scale are real concerns, and you have opinions about the trade-offs (familiarity with ActionCable/AnyCable, Stream.io, Pusher, or similar is a plus)
- You can communicate effectively with both technical and non-technical audiences, and you're comfortable presenting your work directly to a client team
- You're self-directed: you can pick up a ticket, ask the right clarifying questions, and ship it without needing constant check-ins
- You're motivated by feedback and care about the craft. You'd rather raise a concern early than ship something you're not proud of
- Available to work in an EST or compatible timezone Eastern North America through Western/Central Europe), with strong overlap to a EST/CET working day for sprint rituals, pairing, and client touchpoints
Responsibilities
- Build and ship full-stack features across the Rails service layer and the React frontend on the client's community platform
- Pick up tickets from the Linear board, scope your own work, and deliver production-quality code with strong test coverage
- Participate in the client's sprint rituals, demos, and touchpoints, speaking confidently about technical decisions, trade-offs, and delivery status
- Collaborate closely with the existing engineers on the project (your primary pair during ramp-up) and with the client's internal engineers and PM
- Help drive the team toward upcoming beta and release milestones, flagging risks early and proposing solutions, not just problems
- Contribute to architecture and integration discussions where relevant (e.g. real-time infrastructure, feed/messaging via Stream, performance and scaling questions)
- Write code reviews that raise the bar without slowing the team down
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