Java and React Full-Stack Developer | Mid-Level

Description

**About Us:** Since 2016, Prolog has been transforming Fleet Management through technology, operating in 3 countries and making a difference in over 1\.000 transportation operations! At Prolog, **we never stop learning**, because knowledge is our fuel; **we assume nothing—we rely on data** to ensure we stay on the right path; we **focus on what matters**, without deviating from our priorities' lane; we **value results**, because we know where we want to go; we deliver with **care and precision**, ensuring every release runs flawlessly; and we **refuse to accept inefficiency**, because our fleet is **built for high-performance operation**! Through our Tire Management, Maintenance Management, and Checklist Management modules, we bring greater productivity, accuracy, and predictability to our customers’ fleet management! * Learn more about **our story, our values, and much more here**! * Also check out our Instagram, **where we share a glimpse of our daily life**. We are looking for a **Mid-Level Java and React Full-Stack Developer**, and you can find the details of this opportunity below—come take a look! Important: We are currently located in the Pedra Branca neighborhood of Palhoça/SC and operate under a **hybrid work model**. **Your day-to-day responsibilities will include:** * Developing and enhancing Java backend services with a focus on performance and scalability; * Building and improving React-based user interfaces, translating product requirements into seamless user experiences; * Analyzing and resolving production issues (without delegating problems); * Participating in technical decision-making alongside the team (architecture, design, trade\-offs); * Writing clean, testable, and maintainable code; * Conducting code reviews with critical thinking (not approving for convenience); * Collaborating closely with product and design teams to deliver real value; * Monitoring and improving system health (logs, metrics, stability); * Continuously reducing technical debt; * Leveraging AI tools such as Claude to enable agile and rapid delivery. Requirements: **To take on this mission, you must have:** * Solid experience with version control using Git; * Experience with automated testing (unit, integration, and E2E); * Strong understanding of best practices (Clean Code, SOLID); * Ability to independently debug and resolve problems; * Strong communication skills for effective teamwork. **Back\-end:** * Practical experience with Java and Spring Boot; * Experience developing REST APIs; * Knowledge of relational databases (SQL); **Front\-end:** * Experience with React and TypeScript; * Knowledge of Tailwind for styling; * Experience managing state and asynchronous data; * Experience with React Hook Form and schema validation (Zod); * Understanding of routing with React Router; * Familiarity with consuming REST APIs via Axios; * Awareness of componentization, design systems, and accessibility best practices. **Not required, but we’ll be thrilled if you:** * Have worked with microservices in production; * Have experience with messaging systems (Kafka, RabbitMQ, SQS or similar); * Know observability tools (Sentry, OpenTelemetry, structured logs, metrics, tracing); * Have worked with cloud platforms (AWS, GCP or Azure); * Have experience with Docker and/or Kubernetes; * Have handled high-scale or high-volume data systems; * Have a track record of continuous improvement (not just backlog execution). Benefits **Benefits of Being a Prologger:** * Meal Allowance: R$ 31.00 per working day; * Fuel Allowance: R$ 250/month or Public Transportation Benefit; * Flexible Benefit: R$ 200.00/month; * Unimed Health Plan (after 4 months of employment); * Bradesco Dental Plan (after 3 months of employment); * Birthday Day Off; **We also offer...** * **Basicoisas**: an internal mini-market to make your routine lighter and more convenient; * Partnership with **Wellhub** (Gympass): A wide range of options for physical activity, therapy, nutrition, and sleep quality; * Partnership with Avus: Up to 80% discount at pharmacies, in-person consultations, and lab tests; * **Starbem**: 4 telemedicine consultations per month (1 with a general practitioner or specialist, 1 with a nutritionist, and 2 with psychologists); * SESC Membership: Discounts on hotels, gyms within the network, and "day use" including lunch; * Complimentary coffee, fruits, teas, and cookies; * Career and Compensation Framework; * Biannual Performance Reviews; * Focus on development: 1:1 meetings, feedback culture, and Individual Development Plans (IDPs); * Casual dress code; * Company-paid Claude Code **So, are you ready to optimize the daily workflow of thousands of fleet managers?**