Senior SRE

Description

Job Summary: We are seeking a highly senior SRE to operate on the front line of reliability and stability for our critical systems, taking a leading role in advanced troubleshooting within a multi-cloud environment. Key Highlights: 1. Leadership in reliability and stability of critical systems 2. An environment that drives growth and provides autonomy 3. Collaboration with financial market specialists and strategic leaders At Banco ABC Brasil, we believe in the authenticity of every individual. After all, we have our own way of doing things, relating to others, transforming businesses, and building a sustainable future—inclusive, respectful, and welcoming. Because we genuinely care about people and build authentic relationships rooted in trust and closeness. If you’re passionate about challenges and seek an environment where you can grow professionally—with autonomy to lead major projects and take ownership of your career—this is the place for you! With us, you’ll have daily opportunities to collaborate with financial market specialists and receive guidance and support from strategic leaders to shape your future and jointly contribute to our growth. **We believe caring for our employees is the key to success. Therefore, we offer:** * Meaningful benefits * Development options * An inspiring environment We are looking for a highly senior **SRE** with a “hands-on” profile to assume frontline responsibility for the reliability and stability of our most critical systems. In this role, you will be the **guardian and technical investigator** of our ecosystem. You will resolve incidents of extremely high complexity across multi\-cloud and on-premises environments, playing a **vital leadership role in advanced troubleshooting within our environment**. Your responsibilities include mastering low-level operations, ensuring efficiency, security, and availability grounded in SRE culture. Are you ready to join a team that transforms challenges into opportunities? Come with us! **Responsibilities and Duties** As a Senior SRE, your day-to-day work will focus on resolving structural problems. Your core missions will be: **Reliability Management, Incident Response, and SRE Culture** * Monitor vital metrics (SLIs and SLOs); * Serve as the highest escalation level for problem management within the SRE domain; * Lead in-depth investigations of chronic or structural incidents (Root Cause Analysis \- RCA), converting recurring failures into engineering backlogs to reduce technical debt; * Respond to severe crisis incidents and conduct rigorous *Post\-Mortems*. **Capacity Planning and Disaster Recovery (DR)** * Execute predictive *Capacity Planning* to prevent bottlenecks during periods of high seasonality. * Conduct complex and realistic *Disaster Recovery* (DR) tests and scenarios. **Advanced Operating System Administration** * Perform complex performance troubleshooting in heterogeneous environments; * **Linux:** Kernel-level operations (sysctl tuning, namespaces, cgroups); * **Windows Server:** Resolution of structural bottlenecks (IIS, WMI, Registry tuning), advanced automation via PowerShell, and identity management (Active Directory / Entra ID); * Conduct advanced network troubleshooting (Cloud and On-premises) **Advanced Governance, Resilience, and Kubernetes Operations** * **Large-Scale Operations and Stability:** Lead the operation, maintenance, and continuous evolution of dozens of mission-critical Kubernetes clusters (EKS), ensuring extreme stability, upgrades (*upgrades*), and health of both the *Control Plane* and *Worker Nodes*. * **Reliability Standards (SRE in K8s):** Ensure correct use of *Pod Disruption Budgets (PDBs)*, *Resource Quotas*, *LimitRanges*, and *Priority Classes*, while monitoring and adjusting QoS (*Quality of Service*) allocation to mitigate *OOMKills* and *CPU Throttling*. * **Troubleshooting and Tuning:** Serve as the highest escalation level for complex investigations and critical incidents across the Kubernetes ecosystem. Perform API Server performance *tuning* and advanced *debugging* of bottlenecks. * **Advanced Kubernetes (EKS) Troubleshooting:** Escalate to handle complex EKS issues. You will perform deep-dive analysis of networking bottlenecks and failures (VPC CNI, CoreDNS, Ingress/Egress, *Service Mesh*), isolate obscure *CrashLoops*, contain *OOMKills*, analyze Control Plane latency, diagnose *scheduling* issues, evaluate scalability (Cluster Autoscaler/Karpenter), and troubleshoot Persistent Volumes. * **Toil Reduction and Self-Healing:** Eliminate manual operational work (*toil*) by automating the full lifecycle of clusters and their *add\-ons* (strictly via GitOps), and implement and troubleshoot *Custom Operators* (CRDs) to automate incident response within the cluster. **Infrastructure as Code (IaC), GitOps, and FinOps** * Architect and maintain complex, reusable modules using **Terraform** and/or CloudFormation, defining *State Management* strategy for distributed teams; * Apply GitOps (ArgoCD or FluxCD), ensuring the Git repository serves as the single source of truth (*Single Source of Truth*); * Lead financial governance (FinOps): define tagging strategies for Chargeback/Showback, remove idle resources, aggressively apply *rightsizing*, and manage Spot Instances and commitments (Savings Plans/RI). **Requirements and Qualifications** **Requirements and Qualifications** **Academic Background:** * Completed undergraduate degree (Bachelor’s or Technologist) in Computer Science, Computer Engineering, Information Systems, or related fields. **Proven Experience Required:** * SRE and Reliability Engineering practices (SLIs, SLOs, Error Budgets, Post\-Mortems); * Operating Systems (Linux kernel-level and advanced Windows); * AWS cloud computing; * Azure cloud computing; * GCP cloud computing; * Containers and orchestration (EKS, Service Mesh); * Infrastructure as Code (IaC) with emphasis on advanced Terraform and/or CloudFormation; * Observability and monitoring (Datadog, Prometheus, Grafana, ELK Stack); * CI/CD and pipeline automation (GitLab CI, GitHub Actions, Azure DevOps); * GitOps practices (ArgoCD); * Messaging systems (SNS/SQS, Kafka); * Cloud Security / DevSecOps (IAM, Zero Trust, WAF, KMS, SAST/DAST); * Hands-on experience with FinOps and cloud cost optimization. **Desirable / Differentiating Certifications (Recommended for this role level):** * **AWS:** AWS Certified Solutions Architect \- Professional and/or AWS Certified DevOps Engineer \- Professional; * **GCP:** Google Cloud Professional Cloud Architect and/or Professional Cloud DevOps Engineer; * **Azure:** Microsoft Certified: Azure Solutions Architect Expert and/or DevOps Engineer Expert; * **Cloud Native:** CKA (Certified Kubernetes Administrator), CKS (Certified Kubernetes Security Specialist). **Additional Information** * Medical Assistance; * Omint Dental Assistance; * Life Insurance; * Profit Sharing (PLR); * Performance Bonus (PPR); * ABC com Você: a program supporting employees and their families with legal, social, psychological, and financial assistance; * Meal Voucher; * Food Voucher; * Extended Paternity and Maternity Leave: 20 days paternity leave and 6 months maternity leave; * Childcare/Babysitter Allowance; * Annual Day Off; * Remote Work Allowance; * Home Office Infrastructure Allowance; * TotalPass; We are ABC Brasil—the multi-bank with over 35 years of history, specialists in financial solutions driving major national businesses—combining international solidity with the agility of local, close, and autonomous management. With a comprehensive portfolio of products and services, our focus is on delivering real impact to our clients—evolving alongside the market and adapting to each client’s unique needs, always with responsibility, integrity, and mutual trust. This approach to relationships makes us unique. We believe authentic connections—respecting differences—create a collaborative, human, and inspiring environment. Here, everyone can be themselves—and grow with autonomy and ownership. **ABC Brasil. The bank for those who are singular.** \#EuSouSingular \#SouABCBrasil \#ABCBrasil