Senior DevOps Engineer / Backend Architect

Description

Job Summary: We are seeking a versatile and experienced professional to serve as the technical pillar, combining solution architecture, backend development, and DevOps/SRE expertise. Key Highlights: 1. Act as the technical pillar of the platform 2. Lead architectural and infrastructure decisions 3. Develop critical backend components We seek a versatile and experienced professional who will serve as the technical pillar of the platform, combining expertise in solution architecture, backend development, and DevOps/SRE. You will be responsible for implementing critical backend components and building cloud infrastructure, CI/CD pipelines, and observability practices. This is a hands\-on role where you will work directly with code, infrastructure, and architectural decisions that shape the future of the platform. RESPONSIBILITIES Solution Architecture Define / evolve the platform's technical architecture Make decisions regarding technology stack, design patterns, and integrations Design scalable, resilient, and highly available solutions Create and maintain technical documentation and architecture diagrams Evaluate trade\-offs among cost, performance, and resilience Define caching strategies, message queues, retry policies, and circuit breakers. Backend Development Implement REST APIs (Spring Boot / Java) for integration with POS terminals Develop adapters for acquirer integration Implement integrations with legacy systems (REST, SOAP, SFTP) Develop complex business logic (fee, tariff, commission, installment calculations) Implement workers for asynchronous processing (queues) Ensure quality through testing (unit and integration tests) Implement resilience patterns (fallback, retry, circuit breaker) DevOps / Infrastructure / SRE Provision and manage AWS infrastructure (App Runner, RDS, ElastiCache, SQS, etc.) Build CI/CD pipelines (GitHub Actions, ECR, App Runner) Implement Infrastructure as Code (Terraform or CloudFormation) Configure observability (CloudWatch, X\-Ray, alerts, dashboards) Manage secrets and credentials (AWS Secrets Manager) Implement security practices (WAF, Security Groups, IAM, IP whitelisting) Optimize AWS infrastructure costs Define deployment, rollback, and disaster recovery strategies REQUIRED QUALIFICATIONS Technical Experience 5\+ years of software development experience 3\+ years with Java (Java 11\+ required; Java 17 preferred) 2\+ years with Spring Boot (Spring Web, Spring Data JPA, Spring Security) 2\+ years with AWS (practical experience with managed services) Solid experience with relational databases (PostgreSQL, MySQL) Experience with containerization (Docker, ECR, registries) Experience with CI/CD (GitHub Actions, GitLab CI, Jenkins or similar) Knowledge of REST APIs (design, versioning, documentation)REQUIRED QUALIFICATIONS Technical Experience 5\+ years of software development experience 3\+ years with Java (Java 11\+ required; Java 17 preferred) 2\+ years with Spring Boot (Spring Web, Spring Data JPA, Spring Security) 2\+ years with AWS (practical experience with managed services) Solid experience with relational databases (PostgreSQL, MySQL) Experience with containerization (Docker, ECR, registries) Experience with CI/CD (GitHub Actions, GitLab CI, Jenkins or similar) Knowledge of REST APIs (design, versioning, documentation). Contract: PJ at R$ 8000.00 On\-site work at Berrrini Valid Brazilian driver's license (Category B) required Interested candidates should send their resume to phone number 11916024600 **Minimum Education:** Bachelor's Degree