Job Summary: The professional will implement and maintain Ruby on Rails application features, fix bugs, perform improvements, and collaborate with multidisciplinary teams in an agile environment. Key Highlights: 1. Implement and maintain Ruby on Rails features 2. Work with databases and integrate APIs 3. Collaborate in an agile environment with autonomy At Vindi, we are more than a financial services company; we are a powerhouse of integrated solutions. With comprehensive functionalities, our platforms offer intelligent tools for **one-time** or **recurring payments**, and the opportunity to enter the ***embedded finance*** market, building **customized credit solutions** for both financial and non-financial companies. Our **years of history** encompass numerous achievements, journeys, and trajectories that, over time, have converged to become a true powerhouse in the financial market. We are driven by passion for what we do, tirelessly working to optimize processes and promote **excellence in financial services**, always guided by our values of collaboration, commitment to results, positive attitude, ethics and transparency, creativity and innovation, diversity and inclusion. At Vindi, **every employee is a fundamental part of our success.** With a diverse and inclusive team, we value the unique contribution of each individual, fostering an environment of collaboration, autonomy, and mutual respect. Here, we work united toward a common purpose: **to be the reference in financial services in Brazil.** **Join us and be part of this transformation journey.** If you are passionate about challenges, come make a difference at Vindi and help us build the future of financial services in Brazil. **LEARN ABOUT THIS OPPORTUNITY** The **xxxxx** team is responsible for **(****ATTENTION MANAGER: INSERT information about the area)** Among daily tasks, we highlight **(****ATTENTION MANAGER: INSERT** **a concise summary of daily tasks.)** For this opportunity, we seek individuals who **(****ATTENTION MANAGER: INSERT** **a concise summary of required technical and behavioral competencies.)** **Responsibilities and Duties** **Your day-to-day will include:** * Implement and maintain features in Ruby on Rails applications * Fix bugs and continuously improve performance and security * Write tests (RSpec/Minitest) and ensure code quality * Participate in code reviews and follow best practices (Ruby Style Guide, SOLID) * Work with databases (PostgreSQL/MySQL): modeling, queries, migrations * Integrate REST/JSON APIs and third-party services * Collaborate with product, design, and QA teams in an agile environment (Scrum/Kanban) * Write and maintain basic technical documentation * Assist in maintaining asynchronous jobs (Sidekiq) and caching (Redis) * Support deployments and simple environment configurations (Docker/AWS, .env) **Requirements and Qualifications** **To excel in this role, you’ll need:** * Solid knowledge of Ruby and Rails fundamentals (MVC, routing, controllers, Active Record) * Basic knowledge of HTML, CSS, and JavaScript for view integration (ERB/Stimulus) * Git/GitHub: branching, pull requests, and basic conflict resolution * Basic SQL: queries, joins, essential migrations and indexes * Concepts of HTTP/REST, JSON, and basic authentication/authorization * Writing basic tests and familiarity with TDD concepts * Strong communication, collaboration skills, and eagerness to continuously learn * Prior experience (internship or 6–12 months) in Rails projects or equivalent portfolio **Bonus points if you also have:** * Sidekiq, Redis, Active Job, Action Mailer, and Webhooks * Knowledge of web security (CSRF, XSS, SQL Injection) and OWASP Top 10 * Docker and CI/CD pipelines (GitHub Actions/GitLab CI) * AWS/Heroku/GCP and monitoring tools (New Relic, Sentry) * Stimulus/Hotwire/Turbo, or basic front-end frameworks (React/Vue) * Experience optimizing query performance and resolving N+1 issues * Technical English for reading documentation and issues **Additional Information** **What we offer:** Health insurance; Dental insurance; Meal allowance or food allowance; Childcare assistance; Transportation allowance; Profit-sharing program (PPR); Birthday day off; Life insurance; Wellhub; Férias&Co (travel benefit); 6-month maternity leave and 20-day paternity leave; Flexible working hours; \#Secuida — our Quality of Life Program; Partnerships with various establishments and institutions in education, health, leisure, entertainment, and other areas. **Where we are:** Avenida Alcides Lajes Magalhaes 305, Bairro Jardim Acapulco \| 17\.525\-181 **Important note:** This and all open positions at LWSA are open to everyone, regardless of gender, ethnicity, sexual orientation, disability, and/or socioeconomic status. We emphasize that our job openings are open to all persons with disabilities (PwD). Did you know LWSA is a digital solutions ecosystem composed of multiple companies? Yes—and all of them share a single objective: **transforming businesses to help them grow and thrive through technology**. Our team is recognized for its **passion, creativity, persistence, and collaboration**. Just like the people building their careers here, each of our brands has its own identity but shares the same drive to evolve and consistently deliver excellence. **LWSA has a place that could be perfect for you!** Here, you can build your career in an environment of **autonomy, respect, and diversity**, within a company committed to developing its professionals to keep innovating and creating tomorrow’s solutions. So, are you ready to join this ecosystem and discover all the possibilities we offer for your career? Feeling that you’re a great match for our profile and sharing your resume here is the first step to joining our team!