Senior Java/C++ Developer

Description

Job Summary: A professional to actively participate in the development and maintenance of equity trading systems, focusing on feature enhancements and defect correction. Key Highlights: 1. Work on B3's Equity Trading Systems 2. End-to-end software development 3. Impact on the Brazilian economy and sustainable development **Date:** Oct 31, 2025 **Location:** São Paulo, São Paulo **Company:** B3 S.A. – Brasil, Bolsa, Balcão **Get ready for an amazing experience!** We are thrilled to introduce a cutting-edge technological innovation that will make your journey with us even more special! To make the beginning of our selection process more immersive and interactive, we’re leveraging artificial intelligence ✨ You’ll be redirected to the **Rheunion** platform, where you can explore this innovation while we get to know your profile. Don’t worry! Your experience is fully secure, and we are committed to protecting your data. Privacy and security of your information are our top priorities! **Who We Are** We are B3 — much more than Brazil’s stock exchange. With over 100 years of history, we are a publicly traded Brazilian company and one of the world’s leading financial market infrastructure providers. Every day, we connect financial and capital markets, **driving sustainable economic development so society can thrive.** We have a significant impact on the Brazilian economy, delivering benefits to our clients and to society as a whole. Our strength lies in diversity: we value and promote inclusive markets. We want everyone to develop and grow, believing in individual potential empowered by collaboration. **Learn More About the Area:** This management unit oversees B3’s Equity Trading Systems — i.e., systems that perform *matching* of orders from both sides of the market — making them among the most critical systems in the Brazilian financial market. In the Equity segment, the unit manages systems for trading Stocks (e.g., Magazine Luiza, Vale, Petrobras) and Derivatives (e.g., Currencies, Coffee, Live Cattle, Indices, Futures Contracts). The professional will contribute to evolving functionality and maintaining these Equity Trading Systems. **What Will Your Day-to-Day Look Like?** Actively participate in the entire software development lifecycle for Fixed Income systems: requirements gathering, analysis, architecture design, development, support, and testing — both for new features and defect fixes. **What We Expect From You:** * Java (advanced level), with possible experience in C/C\+\+; * Knowledge of memory and object allocation within the JVM (Java Virtual Machine) for application optimization; * Advanced knowledge of algorithms and data structures; * Familiarity with programming concepts and techniques (e.g., multi\-threaded applications, concurrency, memory management); * Algorithmic complexity; * Object-oriented programming; * SQL/JDBC (Oracle); * JUnit; Linux OS. **Nice-to-Have Qualifications:** * Development for distributed, real\-time, large\-scale systems; * Knowledge of high\-performance logging libraries, collections, and queues (e.g., Disruptor); * Knowledge of Middleware/Messaging Systems (JMS, Tibco, MQ, or ZeroMQ); * Financial industry protocols (e.g., FIX) or binary protocols **Discover the Benefits Package We’ve Prepared for You:** * **PLR – Profit Sharing Program;** * **Bradesco Health and Dental Insurance;** * **Meal Allowance** (R$ 600.00/month); * **Food Voucher** (R$ 50.00 per business day); * **Transportation Voucher;** * **Partial reimbursement for commuter services if residing in another municipality;** * **Private Pension Plan;** * **Maternity Leave** (120 days, extendable to 180\)**;** * **Paternity Leave** (extended); * **Childcare/Babysitting Assistance;** * **Wellhub (Gympass) \-** available to dependents; * **TotalPass;** * **Benefits Club** (digital platform with hundreds of partner companies offering discounts across various services); * **Hybrid Work Model** \#LI\-Hybrid * **B3 Balance \- Quality of Life Program** (Personal Support Program, Workplace Gymnastics, Baby on the Way, Discounted Bazaar during holidays, Birthday Day Off, Free Museum Entry, Morning and Afternoon Snacks, Quick Massage); * **Flexible Dress Code** (Dress as you are!); * Access to the **Alura** online learning platform; * **Zelo Funeral Services;** * **Zelo Pet** (funeral assistance for your pet). **Check Out Some of Our Awards:** * **Top Companies** 2022, 2021 * **Top Employer Brasil, Top Employers Institute**, 2025, 2024, 2023, 2022, 2021, 2020 * **Best Companies to Work For – Financial Institutions** 2021, 2022, 2023, 2024, 2025 * **Best Companies to Work For – Information Technology** 2022, 2023, 2024 * **Best Companies to Work For – São Paulo** 2022, 2025 * **Best Companies for Women to Work For** 2021, 2023, 2024, 2025 * **Best Companies for Ethnic-Racial Inclusion** 2021, 2023, 2024, 2025 * **Best Companies for LGBTI\+ Inclusion** 2024, 2025