Mid-Level Full Stack Developer jobs in United States
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Lean Tech · 1 month ago

Mid-Level Full Stack Developer

positionUnited States
timeFull-time
remoteRemote
seniorityMid Level
date3+ years exp

Lean Tech is seeking a skilled Mid-Level Full Stack Developer to help evolve their core platform. The role involves working with Ruby on Rails for backend API and React for client-side applications, contributing to product decisions and architecture within a cross-functional team.

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H1B Sponsor Likelynote

Responsibilities

Build end-to-end features, from database migrations in Rails to dynamic UI components in React
Design and maintain RESTful (or GraphQL) APIs that are secure, documented, and performant
Create reusable, accessible, and responsive React components using modern patterns (Hooks, Context)
Advocate for Test-Driven Development (TDD). You will write unit and integration tests using RSpec (backend) and Jest/React Testing Library (frontend)
Identify slow database queries and optimize frontend rendering to ensure a snappy user experience
Assist in refactoring legacy code and updating dependencies to keep our stack healthy

Qualification

Ruby on RailsReact.jsPostgreSQL/MySQLAPI DesignTest-Driven DevelopmentGitDockerCI/CD workflowsTypeScriptGraphQLHeroku/AWSHotwire/TurboOpen-source contributionsProblem SolverCommunicator

Required

3+ years of full-stack development experience
Strong grasp of Ruby on Rails, including ActiveRecord associations, background jobs (Sidekiq), and the Rails asset pipeline (or Webpacker/Vite)
Solid experience with React.js, particularly functional components and hook-based state management
Proficiency with PostgreSQL or MySQL. You understand indexing and N+1 query problems
You don't consider a feature 'done' until it's tested. Familiarity with RSpec or Minitest is required
Experience with Git, Docker, and standard CI/CD workflows

Preferred

Experience with TypeScript in a React context
Familiarity with GraphQL (Apollo Client / Ruby GraphQL gem)
Experience deploying to Heroku or AWS
Understanding of Hotwire/Turbo (if you use hybrid approaches)
Contributions to open-source Ruby or JavaScript projects

Company

Lean Tech

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: About Us: As the technology division of Lean Solutions Group, we're on a mission to help you achieve all your technology initiatives.
dateFounded in 2019
location
Medellín, Antioquia, COL
people-size501-1000 employees
web-link
https://www.lean-tech.io/

H1B Sponsorship

Lean Tech has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2023 (1)
2022 (1)

Funding

Current Stage
Late Stage

Recent News

Paypers
Saudi Central Bank allows Lean Tech and Mod5r to regulatory sandbox
2022-08-25
Company data provided by crunchbase