Lead Software Engineer

Description

Job Summary: We are seeking a professional to architect and develop APIs/services, lead critical integrations, and provide technical leadership—elevating the team's technical bar within a transparent, high-performance environment. Key Highlights: 1. Opportunity for development in a high-performance environment. 2. Working in a more transparent financial market. 3. Innovation-driven culture with multidisciplinary teams and a flat organizational structure. At Warren, trust is the foundation of everything. Our clients know—with full transparency—how their investments are managed, which fees apply, and the risk level of each investment. Our purpose is to eliminate conflicts of interest in the Brazilian investment market: we are not commission-based on recommended products, ensuring that each client’s profile and goals sit at the center of every decision. If you believe in a **more transparent financial market**, capable of delivering the best investment experience for its clients, Warren is the place for you. Here, you’ll have the opportunity to grow while working in a high-performance environment, learning from the industry’s top professionals. We seek people who value teamwork, always prioritizing ethics and excellence in their deliverables. We are an inclusive company for all individuals who wish to do their best every day—regardless of gender, ethnicity, orientation, or any other condition—and our selection process is based on neutrality. **Responsibilities and Duties** * **Architect/Develop (hands\-on)** Design/implement APIs/services in .NET/C\# (Java/Spring as a plus), versioning, idempotency, retries, safe reprocessing (DLQ), caching, and circuit breaker. * **Critical Integrations** Lead and stabilize integrations with Sinacor/Sincad/B3 and other internal systems/suppliers; ensure non\-duplication, traceability, and evidence (before/after/who/when). * **Reliability/Observability** Define/operate SLO/SLI, logs, metrics, and alerts (CloudWatch/Prom/Grafana); feature flags, blue/green/canary deployments, and safe rollback.Incidents/RCA (zero recurrence) Lead timeline, containment, diagnosis, and RCA with preventive actions, communicating with business areas (Core Inst., BackOffice, Brokerage) and suppliers. * **Technical Leadership/Mentoring** Elevate technical standards (PR reviews, coding standards, tests), mentor JR/PL/SR engineers, require minimal documentation per delivery, and foster automation. * **Change/Release Management** Orchestrate GMUD, go/no-go criteria, schema/database migrations, and integration mechanisms with compatibility and frictionless cutover across teams. **Requirements and Qualifications** * Proven experience in the capital markets, preferably at a securities brokerage, including integrations with Bacen/Selic, B3/Sinacor, and brokerage operational routines (Core/BackOffice). * Hands\-on experience in .NET/C\# and Java (production), building APIs/WS and critical integrations with testing and observability. * Advanced SQL (modeling, indexing, performance optimization). * Bachelor’s degree in Technology, Computer Science, Computer Engineering, or related fields. * Languages \& frameworks: .NET Core/C\#, Java/Spring Boot. Architecture: microservices, event\-driven, CQRS. Messaging/streaming: RabbitMQ/SQS and Kafka. Cloud (AWS): Lambda, ECS, S3, RDS/Aurora (MySQL/Postgres), CloudWatch; security/HA. Databases: SQL/Aurora/MySQL/Postgres, Oracle, MongoDB/DocumentDB. DevOps/Quality: CI/CD (GitHub Actions/Jenkins), unit/integration/contract testing, end-to-end observability. Operating Systems: Linux and Windows **Nice-to-Have** * Experience with OCI \- Oracle Cloud Infrastructure **What Warren Offers You** An innovation-focused culture with multidisciplinary teams and a flat organizational structure—dedicated to developing the best solutions for our users. Opportunities to contribute across diverse areas for your growth. * SulAmérica Health Plan for you and your dependents; * Care Plus Dental Plan for you and your dependents; * Meal and Food Allowance (VR and VA); * Extended Maternity Leave; * Extended Paternity Leave; * Birthday Day Off; * 2 Paid Day Offs per year; * Childcare Assistance; * Transportation Allowance; * Partnership Program: become a Warren co-owner. * Semi-Annual Variable Bonus; * TotalPass; * Prudential Life Insurance.