Job Summary: We are seeking a Software Engineering Consultant – Architecture to work in a technical, collaborative, and innovative environment at B3, with a focus on high availability and performance. Key Highlights: 1. Work on critical infrastructure for the financial market 2. Highly technical and collaborative environment 3. Impact, autonomy, and continuous growth **Date:** Jan. 30, 2026 **Location:** São Paulo, São Paulo **Company:** B3 S.A. – Brasil, Bolsa, Balcão **Join us in building the future with B3!** We currently have **multiple open opportunities to work as a Software Engineering Consultant – Architecture** at B3, one of the world’s leading financial market infrastructures. Here, we work daily to ensure **high availability, performance, security, and innovation**, supporting critical operations that drive a large portion of the Brazilian economy. **About the Opportunities** -------------------------- Positions are distributed across various B3 business areas and products, ranging from corporate platforms to mission-critical systems, ultra-low-latency environments, and continuously modernized distributed solutions. Each area presents its own challenges and characteristics, yet all share a highly technical, collaborative, and excellence-oriented environment. If you seek real challenges, impact, autonomy, and continuous growth, B3 is the ideal place for your next career step. **Your Day-to-Day Responsibilities** ------------------------------------- Depending on your assigned area, your responsibilities may include: * Working as a developer within a squad; * Serving as the squad’s technical leader, acting as liaison between other B3 departments; * Designing the architectural framework for all B3 Balcão integration platforms; * Technical refinement of technology requirements; * Direct involvement in FinOps; * Defining distributed architecture using Azure/OCI cloud providers; * Developing solutions using the JAVA programming language; * Building queries using Oracle/SQL Server databases. **Area Responsibilities** ------------------------ Depending on your assigned unit, your deliverables may support essential systems such as: * Trading, post-trading, risk, and clearing platforms; * Processing and calculation of listed and over-the-counter financial products; * Pricing systems, yield curves, volatility models, and trading tunnels; * High-availability, low-latency, and high-volume transactional environments; * Distributed architectures and B3’s strategic solutions. **What We Expect From You:** * Completed undergraduate degree; * Knowledge of distributed architecture using Azure/OCI/AWS cloud providers; * Experience with microservices; * Development experience using the JAVA programming language; * Proficiency in Spring Boot; * Experience building queries using Oracle/SQL Server databases; * Familiarity with Kafka/Openshift platforms. **Preferred Qualifications** -------------------------- * Knowledge of Python programming language; * Knowledge of NoSQL databases; * Experience with test automation; * Familiarity with Agile methodologies; * Proficiency with Atlassian tools (Jira/Confluence/Bitbucket); * Development experience using the C# programming language; * Knowledge of messaging systems; * Knowledge of Angular. **Benefits** * Bradesco Saúde medical and dental coverage * Meal allowance (R$ 600/month) * Food voucher (R$ 50 per business day) * Transportation allowance and partial reimbursement for shuttle services * Wellhub (Gympass) and TotalPass, extendable to dependents * Club of Benefits offering discounts across hundreds of companies * Hybrid work model and flexible dress code (“Dress as you are!”) * Alura online learning platform * Quality-of-life programs: personal support, workplace gymnastics, birthday day off, free museum admission, quick massage, and more * Funeral assistance for you and your pet **Recognitions** * **Top Employer Brasil** (2020–2025); * **Best Companies to Work For** (Financial Institutions, Information Technology, São Paulo, Women, Ethnic-Racial, LGBTI+). **These awards reflect our commitment to diversity, inclusion, and excellence!** Want to learn more about B3’s role in the financial market? Explore our institutional content and technology & innovation initiatives. * **Screening questions will help us match your profile to the opportunity most aligned with your background.**