Job Summary: We are seeking a talented and committed Backend Engineer to directly impact the architecture, evolution, and stability of Certta’s solutions by developing robust, scalable, and secure systems. Key Highlights: 1. Direct impact on backend architecture and solution evolution 2. Development of robust, scalable, and secure systems 3. Dynamic, collaborative, and transparent environment We are looking for talented and committed individuals to join Certta. More than filling a position, we seek someone who shares our purpose: ensuring secure digital identities and transforming how businesses and people connect. ### **Your Mission** In this role, you will have direct impact on Certta’s backend architecture, evolution, and stability, strategically and practically engaging across the entire software development lifecycle. Your role will be essential in designing, building, and sustaining robust, scalable, and secure systems—translating business and market needs into high-impact technical solutions. Your deliverables will be tied to KPIs such as system availability, performance, scalability, code quality, integration reliability, and security—helping Certta grow with autonomy, technical excellence, and trust. ### **What You’ll Do** * Develop and maintain high-quality backend systems, following agile best practices and secure development principles; * Design, build, and evolve APIs, services, processing routines, and integrations; * Work with data modeling, persistence, and storage solutions; * Ensure application performance, scalability, availability, and resilience; * Implement automated tests to ensure solution consistency and reliability; * Build secure and efficient communication interfaces between internal and external systems; * Collaborate with other engineers, product teams, and stakeholders to define technical solutions; * Actively participate in code reviews, providing constructive feedback and sharing best practices; * Engage across the full solution lifecycle: research, design, refinement, development, deployment, monitoring, and maintenance; * Document architectures, technical decisions, implementations, and configurations; * Ensure deliverables meet defined quality, security, and acceptance criteria; * Support translating strategic business needs into executable technical solutions. ### **What You Need to Bring** * Solid experience as a Backend Engineer in medium- and high-complexity environments; * Proficiency in Node.js (JavaScript/TypeScript) and/or .NET; * Experience with distributed architectures, microservices, and REST/asynchronous APIs; * Advanced knowledge of cloud environments, especially AWS; * Experience with CI/CD, automated deployment, and DevOps practices; * Strong understanding of application performance, scalability, security, and availability; * Experience with production monitoring, observability, and troubleshooting; * Knowledge of high-availability and disaster recovery (HA/DR) strategies; * Ability to autonomously manage priorities, deadlines, and deliverables; * Proactive, hands-on, results-oriented profile; * Attention to detail and commitment to technical quality; * Flexibility, resilience, and emotional intelligence to thrive in dynamic environments. ### **More About You** * Value diversity, inclusion, and respect; * Are curious, enjoy learning, and take initiative; * Collaborate easily and build strong relationships across diverse teams; * Balance technical execution with strategic thinking; * Share our way of working: Transparency, Customer Obsession, Absolute Responsibility, People First, and Execution Focus. **What We Offer** At Certta, we believe work goes beyond the job description—it’s about being part of a dynamic, collaborative, and transparent environment where everyone has room to grow. Here, we celebrate achievements, encourage innovation, and value the balance between personal and professional life. Our benefits include: * Caju R$863.00 (flexible for meal and food vouchers) * Medical and dental insurance * Caju Mais: Conexa Saúde, Psicologia Viva, and Wellhub * Birthday Day Off * Language school partnership ### **About Certta** At Certta, we believe innovation only makes sense when rooted in trust and mutual respect among people. Our culture is built on ethics, diversity, and security—non-negotiable values guiding all our decisions. Here, every voice matters, every talent has space to grow, and every achievement is celebrated. ### **Equal Opportunity** Certta believes in the power of diversity to transform teams and businesses. We are committed to building an inclusive, respectful, and discrimination-free environment. All applications are welcome, regardless of race, gender, sexual orientation, age, disability, religion, or any other characteristic protected by law.