Senior Full-Stack Engineer (Ruby on Rails + React)

ScrumLaunch; Teletrabalho; BRL 382.000 - 492.000; Tempo integral

Resumo da oferta

A fast-growing startup in Brazil seeks a Senior Full-Stack Engineer to drive product development with Ruby on Rails and React. This role involves building data dashboards, collaborating with stakeholders, and enhancing internal tools. The ideal candidate will have 5–8 years of experience, strong skills in full-stack development, and a background in mentoring junior developers. The position offers a supportive environment, flexible working conditions, vacation, sick leave, and wellness support.

Serviços

Flexible working conditions

12 vacation days per year

5 sick days per year

English classes

Psychologist support

Qualificações

• 5–8+ years of full-stack engineering experience.
• Strong proficiency with Ruby on Rails and React.
• Experience with both new systems and legacy code.

Responsabilidades

• Build and maintain data-driven dashboards using Ruby on Rails and React.
• Improve and expand internal admin tooling for various operations.
• Work closely with the CTO for backend data translation to UX.

Conhecimentos

Ruby on Rails

React

Full-stack engineering

Data handling

Performance optimization

Mentoring junior developers

Communication with stakeholders

Ferramentas

AWS

React Native

Sidekiq

Descrição da oferta de emprego

Senior Full-Stack Engineer (Ruby on Rails + React) Remote | Full-Time (40+ hrs / week) | Fast-Growth Startup | Contract or Contract-to-Hire

We are a fast-growing, VC-backed retail audit & execution platform that helps brands diagnose planogram compliance and optimize merchandising and category management workflows. Our tools connect real-world retail execution with an intelligent analytics backend powered by data, video workflows, and CVAI.

We're a small, highly collaborative, and fast-moving team. You'll work directly with founders, technical leadership, and product teams — influencing architecture decisions, shaping internal tools, and contributing to high-impact product areas.

What You'll Work On

Key Responsibilities

• Core Product Development:
  • Build and maintain data-driven dashboards using Ruby on Rails + React
  • Develop backend logic, algorithms, and data pipelines in Rails
  • Improve and expand internal Admin tooling for operations, analytics, and sales
  • Work on backend components powering the mobile app used by field shoppers Ensure consistency between mobile data flows and dashboard experiences.
• Collaboration & Code Quality:
  • Work closely with the CTO to ensure backend data is translated into clean, functional UX
  • Communicate timelines, tradeoffs, and constraints to non-technical founders
  • Provide thoughtful code reviews for junior developers Mentor junior developers on architecture and best practices (not people management)
• Platform & Infrastructure:
  • Build and integrate APIs between internal systems and external services
  • Work with third-party tools (marketing automation, payments, workflow systems)
  • Improve performance, maintainability, and reliability across the codebase
  • Identify and fix bugs across frontend, backend, web, and mobile
  • Write unit tests and elevate testing best practices over time
  • Maintain clean, well-structured, well-documented code

What We're Looking For

• Must Have 5–8+ years of full-stack engineering experience
• Strong proficiency with Ruby on Rails (backend, APIs, logic, data flows)
• Strong proficiency with React (frontend features, UI state, components)
• Experience working across the stack : backend services, APIs, frontend, and internal tools
• Ability to work with both new systems and existing / legacy code
• Experience with data handling, scaling, and performance optimization
• Startup mindset: adaptable, fast, independent, detail-oriented Strong communication skills, especially with non-technical stakeholders
• Experience reviewing code and mentoring junior developers
• Bonus Skills React Native AWS Background jobs (Sidekiq, queues, workers) Data modeling or data pipeline experience

Who Thrives Here

Who Thrives Here You're a builder at heart.

You enjoy owning full features end-to-end — backend logic, data models, UI, APIs, integrations, dashboards, internal tools.

You like fast-moving environments where engineering decisions directly impact the roadmap. You're comfortable collaborating with both technical and non-technical founders.

If you want the chance to build core product DNA in an early-stage company, this role is for you.

We Offer

A supportive and collaborative team environment.

• Opportunities to work on diverse and challenging projects;
• Flexible working conditions;
• 12 vacation days per year;
• 5 sick days per year;
• English classes.
• Access to psychologist support for mental well-being.