Job Summary: We are seeking a Senior Fullstack Software Engineer to develop robust and scalable solutions, working across the entire technology stack with autonomy and excellence. Key Highlights: 1. Development of robust and scalable technical solutions 2. Dynamic, collaborative, and results-oriented environment 3. Direct impact on the product using modern technologies We are **Conexa**, an integrated digital health ecosystem and leader in **Latin America**. We work with thousands of physicians, psychologists, nutritionists, and nurses who, through our platform, can care for patients anywhere they are. We connect patients, healthcare professionals, companies, and health insurance providers to reduce inefficiencies in cost and quality of care within Brazil’s healthcare system. We were founded to democratize access to quality healthcare, believing that physical and mental health must be treated integrally for patients to lead healthy lives. Currently, we conduct over 400,000 consultations per month, including 180,000 in mental health. With our business model, we cover 24 million lives. **We have a team composed of people passionate about their work and who believe in a future with better physical and mental health for everyone!** **About the Role** We are looking for a **Senior Fullstack Software Engineer** to join our Engineering team in a dynamic, collaborative, and results-oriented environment. This person will be responsible for developing robust and scalable technical solutions, working across the full technology stack with autonomy, critical thinking, and technical excellence. This position is ideal for experienced professionals seeking direct impact on the product, working with modern technologies, and actively contributing to architecture evolution, code quality, and development best practices. **Important Notice!** **Conexa never charges any fee** to participate in its selection processes. All our job openings are published **exclusively on Gupy**, and the application process is **completely free**. If you receive any payment request or job offer outside Gupy, please be cautious — this is not part of our recruitment practice. How you’ll contribute to the team by ensuring functionality, maintainability, and speed, as well as testing and quality practices. **Responsibilities and Duties** **Main Responsibilities:** **Development & Architecture** * Develop complex end-to-end features, working both on frontend and backend with high standards of quality and performance. * Actively participate in architectural decisions, proposing scalable, resilient solutions aligned with business needs. * Apply and promote engineering best practices, including design patterns, clean code, automated testing, and thorough code reviews. * Collaborate closely with Product and Design leadership to translate business requirements into efficient, well-structured technical solutions. * Ensure technical quality of deliverables through testing (unit, integration, and E2E), monitoring, and observability. * Contribute to continuous evolution of the technology stack, suggesting improvements and modernizations when needed. **Deliverables & Impact** * Work autonomously on technical prioritization and task execution, balancing speed, quality, and code sustainability. * Collaborate in defining technical scope and realistic estimates, contributing to predictable, high-impact deliveries. * Support analysis of complex problems, proposing data-driven, technically sound solutions. * Participate in continuous improvement initiatives, performance optimization, and technical debt reduction. * Document technical solutions and share knowledge with the team, strengthening a learning culture. **Collaboration & Mentoring** * Mentor less experienced developers through pair programming, constructive code reviews, and knowledge sharing. * Serve as a technical reference within the squad, supporting the team in solving complex challenges. * Actively participate in agile ceremonies (planning, review, retrospective), contributing technical and strategic insights. * Promote a collaborative environment with psychological safety and a culture of continuous feedback. * Collaborate with other engineering teams to define shared standards, tools, and practices. **Requirements and Qualifications** **Requirements** * Solid experience as a Fullstack Software Engineer, working on digital product projects with full-stack capabilities (frontend and backend). * Proficiency in Java and the Spring framework (primary focus) and frontend React (with AI integration). * Proven experience with distributed systems architecture, microservices, and RESTful/GraphQL APIs. * Practical knowledge of relational and non-relational databases (PostgreSQL, MySQL, MongoDB, Redis, etc.). * Hands-on experience with modern engineering practices: CI/CD, automated testing, code review, version control (Git), and DevOps. * Experience with agile methodologies and collaborative development (Scrum, Kanban, XP). * Ability to work autonomously, with ownership mindset and focus on high-quality deliverables. * Strong technical communication skills, both with engineering teams and product/business stakeholders. ***Preferred Qualifications*** * Experience with cloud architecture (AWS, GCP, Azure) and containerization tools (Docker, Kubernetes). * Experience in scale-ups or rapidly growing companies. * Experience in healthtechs or regulated industries. * Experience with observability and monitoring (Datadog, New Relic, Grafana, Sentry). * Knowledge of event-driven architecture and messaging systems (Kafka, RabbitMQ, SQS). * Active participation in technical communities, open source, or tech talks. * Experience in high-volume transactional environments and complex integrations. * History of contributing to architectural improvements and technical debt reduction. **Additional Information** **Conexa Benefits:** **CAJU Card**, R$ 1,059.00 monthly credit distributed across categories: Meals, Food, Mobility, Health, Home Office, Culture, and Education; **AMIL S450 Health Plan – Eligible**, with 30% co-payment for consultations and exams and 40% for emergency services; extendable to legal dependents (spouses and/or children up to age 24), with dependent fees deducted from payroll. Dependent cost: R$ 506.86 per life + co-payment. **Omni Saúde:** For purchasing medications upon medical prescription. Monthly balance of R$ 100.00 provided to employees exclusively for prescribed medications issued by our Conexa Hospital. Free access to **Conexa and Zenklub platforms**, offering online consultations to support your physical and mental health; **Childcare Assistance**, per regional collective bargaining agreement, and **Extended Maternity/Paternity Leave**: We offer the option to extend maternity leave to six months. For fathers, paternity leave is 30 days. **SULAMERICA Life Insurance**: Remember the saying “live without fear”? That’s essentially it. We want you to feel secure knowing you and your loved ones are protected, no matter what happens. **Birthday Day Off:** You deserve a moment just for yourself to celebrate this special day! Take time off during your birthday month and celebrate however you wish. **Totalpass and Wellhub**: To help you stay committed to your fitness goals. **Course Discounts:** For your personal and professional development, Conexa offers educational partnerships with various institutions. **SESC Benefit:** Access to sports activities, culture, leisure, courses, and more at special rates for employees and dependents. ⁠ **Transportation Voucher:** 6% salary deduction, if selected. We are **Conexa**, an integrated digital health ecosystem and leader in **Latin America**. We work with thousands of physicians, psychologists, nutritionists, and nurses who, through our platform, can care for patients anywhere they are. We connect patients, healthcare professionals, companies, and health insurance providers to reduce inefficiencies in cost and quality of care within Brazil’s healthcare system. We were founded to democratize access to quality healthcare, believing that physical and mental health must be treated integrally for patients to lead healthy lives. Currently, we conduct over 400,000 consultations per month, including 180,000 in mental health. With our business model, we cover 24 million lives. **We have a team composed of people passionate about their work and who believe in a future with better physical and mental health for everyone!**