Specialist Software Engineer (Frontend)

Description

Job Summary: Design, develop, and maintain complex, scalable, and high-performance web applications using React, serving as a technical reference while ensuring code quality and security. Key Highlights: 1. Serve as the technical reference for the frontend team 2. Ensure code quality through code reviews and automated testing 3. Research and recommend the adoption of new technologies Unico is the world's largest identity verification network and a cornerstone of trust in the digital society. With solutions built on facial biometrics, machine learning, and enhanced security layers, we authenticate with 100% certainty the person performing a transaction and assess associated identity risks. Thus, our solutions combat fraud, protect data, and foster trust among individuals, businesses, and governments — contributing to building a safer, less bureaucratic world. To achieve this, we invest above all in our people, who form an exceptional and highly committed team dedicated to this grand mission. So, are you ready to join us? **Our Culture** Our values form the foundation of everything we do! At Unico, we act without boundaries; we create impact directly; we remain transparent even in difficult situations; we are resilient and adaptable to evolve; we do the right thing the right way; and we boldly lead the construction of the future. Our work environment is relaxed and collaborative, full of learning opportunities and possibilities for you to grow your career with autonomy and support from leaders and colleagues. **Your Responsibilities:*** **Architecture & Development:** Design, develop, and maintain complex, scalable, and high-performance web applications using React. * **Technical Leadership:** Serve as the technical reference for the frontend team, guiding developers of varying seniority levels in architectural decisions and best practices. * **Code Quality:** Ensure code quality through rigorous code reviews, implementation of automated tests (unit, integration, and E2E), and promotion of a culture of technical excellence. * **Performance & Optimization:** Identify and resolve performance bottlenecks, ensuring our applications are fast and responsive. * **Security:** Implement frontend security best practices to protect our users and data against common vulnerabilities. * **Collaboration:** Collaborate closely with Product Managers, Designers, and other Engineers to translate business requirements and designs into robust technical solutions. * **Innovation:** Research, prototype, and recommend adopting new technologies and tools that can enhance our tech stack and development processes. **What We Require:*** Solid experience with JavaScript (ES6\+), TypeScript, CSS, and frameworks such as React (Hooks, Context API, etc.), Angular, or Vue.js. * Advanced knowledge of state management in React applications (e.g., Redux, Zustand, React Query). * Experience optimizing web performance (Web Vitals). * Familiarity with design systems and interface componentization. * Familiarity with frontend automated testing (e.g., Jest, React Testing Library). * Familiarity with CI/CD practices and deployment pipelines. * Solid understanding of frontend security principles. **Nice-to-Have Qualifications:*** Experience with infrastructure-as-code tools: Ansible, Terraform, Packer. * Advanced/Fluent English. **Discover the Benefits of Becoming a Ser Unico** **Flexible Benefit:** R$1\.500,00 per month, distributable across VA/VR, Culture, Mobility, and Flex Vacation options;**Remote Work Allowance:** A monthly amount of R$ 120,00 to cover utility bills and related expenses;**Profit Sharing (PLR):** Eligible for Profit and Results Sharing per collective bargaining agreement;**Education Benefit:** Unico fully funds 100% of studies for 100% of employees via courses available on the Unico Skill platform. You may choose from undergraduate, graduate, MBA, language, specialized, and mentoring programs;**Well-being:** Access to platforms such as Gympass and Totalpass;**Extended Parental Leave:** 180 days for pregnant individuals and primary adoptive caregivers; 60 days for non-pregnant individuals and secondary adoptive caregivers — with full salary and benefits paid throughout the entire period. **Work Location** We adopt a remote-first work model, our \#tetounico. This means team members have the option to visit offices if desired, aligned with each team’s needs. We maintain offices in São Paulo and Londrina. **And More…** We offer a structured career path aligned with your competencies and interests, enabling growth either as a specialist or leader, encouraging personal and professional development through biannual performance evaluations (with structured feedback and individual development plans); To complete your experience, we host talks, meetups, workshops, training sessions, birthday day-offs, weekly "reunioff" sessions on Wednesdays, internal/external parties and celebrations, biweekly in-person happy hours, affinity groups, and workplace gymnastics. **Diversity & Inclusion** At Unico, we are committed to building an inclusive culture, welcoming candidates of all backgrounds regardless of ethnicity, gender, sexual orientation, political views, religion, disability, origin, or any other characteristic. We are building an inclusive workplace and, to support better practices, we created the Diversity & Inclusion form. We invite you to complete it to help us in this process, but clearly state that you may opt out without impacting your evaluation. Sharing this data will not affect your performance in the selection process and will be used solely for developing inclusion strategies. **Want to Learn More About Unico?** Watch our manifesto; Follow our social media: LinkedIn and Instagram I acknowledge that, prior to applying, I have read the Candidate Privacy Notice, available at: Unico Candidate Privacy Notice \| Privacy \- Internal Use We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.