**Date:** Dec 30, 2025 **Location:** São Paulo, São Paulo **Company:** B3 S.A. – Brasil, Bolsa, Balcão **Get ready for an amazing experience!** At B3, we believe every step of your journey should be innovative, secure, and inspiring. That’s why we’re introducing a technological innovation to make the beginning of our selection process even more immersive and interactive: we’re leveraging artificial intelligence to deliver a personalized and dynamic experience. You’ll be directed to the **Rheunion** platform, where you can explore this innovation while we get to know your professional profile better. And rest assured: your experience is fully secure. We’re strongly committed to protecting your data—privacy and security are top priorities for us! **About the position** **Position:** Senior Technology Analyst **Location:** São Paulo/SP **Publication date:** 12/30/25 **What your day-to-day will look like** * Work as an integral member of the Network and Security Implementation team, handling daily demands via the Helix platform, and participating in internal and external projects focused on connectivity and security; * Support the design and documentation of network environments, and keep end-of-life (EOL) network devices updated—both hardware and software; * Actively contribute to connectivity project deliveries, providing innovative and efficient technical solutions to improve network infrastructure; * Collaborate with B3’s internal teams—including Data Center, Development (DEV), and Information Security—to ensure excellence in product delivery and performance. **Area responsibilities** * Develop detailed network project plans, considering both technical and business requirements; * Define schedules and budgets, ensuring projects are delivered on time and within estimated costs; * Install, configure, and test network equipment and solutions, ensuring compliance with quality and security standards; * Manage network updates and upgrades, minimizing service impact and disruptions; * Monitor network performance, identifying and resolving issues to guarantee system availability and efficiency; * Maintain accurate documentation of the entire network infrastructure—including topologies, configurations, and changes; * Work closely with other teams—such as Information Security and Development—to ensure network solutions meet organizational needs; * Participate in cross-departmental meetings to discuss network requirements, challenges, and solutions; * Evaluate emerging technologies and market trends that could enhance network infrastructure; * Propose and implement continuous improvements to network processes and solutions to increase efficiency and security; * Implement security policies and practices to protect network infrastructure against threats and vulnerabilities; * Conduct security audits and tests to identify and mitigate potential risks. **What we expect from you** * Completed undergraduate degree. * Solid knowledge of computer networking (Cisco and/or Juniper Routing & Switching), Checkpoint or Palo Alto Firewalls, Nexus DC Switches. * Ability to efficiently manage multiple priorities and projects. * Strong verbal and written communication skills—with clarity and assertiveness; * Strategic vision, results orientation, and negotiation skills. * Design and update network infrastructure documentation. **Benefits** * **Profit and Results Sharing Program** (PLR) * **Bradesco Health and Dental Insurance** * **Meal Allowance** (R$ 600/month) * **Food Voucher** (R$ 50 per business day) * **Transportation Voucher** and partial reimbursement for shuttle services * **Private Pension Plan** * **Maternity Leave** (up to 180 days) and extended paternity leave * **Childcare/Babysitter Assistance** * **Wellhub** (Gympass) and **TotalPass**, extended to dependents * **Discount Club** offering savings at hundreds of companies * **Hybrid Work Model** and flexible dress code (“Dress like yourself!”) * **Alura** online learning platform * **Wellness Programs:** personal support, workplace gymnastics, birthday day off, free museum entry, quick massage, and much more * **Funeral Assistance** for you and your pet **Recognition** * **Top Employer Brazil** (2020–2025) * **Best Companies to Work For** (Financial Institutions, Information Technology, São Paulo, Women, Ethnic-Racial, LGBTI+) * Awards reinforcing our commitment to diversity, inclusion, and excellence **Join us in building the future with B3!** We are far more than Brazil’s stock exchange. We are a global reference in financial market infrastructure, with over 100 years of history and direct impact on the country’s sustainable economic development. Here, you’ll find a plural, innovative, and collaborative environment where each person is the protagonist of their own journey. **Want to join a team that connects markets, accelerates careers, and transforms lives? Then this opportunity is for you!**