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About the Role
We are seeking an experienced software engineer to enhance and manage Nubank’s messaging platform and its large-scale asynchronous communication infrastructure. This role is crucial for a team responsible for critical platform capabilities supporting internal systems across various business domains and countries. The platform operates in a complex environment with hundreds of clusters, thousands of brokers, hundreds of thousands of topics, and significant daily data volumes across multiple AWS accounts. Senior engineers are expected to independently tackle significant technical challenges, improve reliability and operability, and influence engineering decisions in collaboration with the team. While Kafka experience is beneficial, it is not mandatory. A strong understanding of distributed systems infrastructure, particularly Kubernetes, networking, and AWS, is essential.
Responsibilities
- Operate and improve large-scale messaging and platform infrastructure based on Kafka used by critical systems across Nubank
- Contribute to the reliability, scalability, and performance of asynchronous communication platforms
- Help design and implement solutions for high-throughput, low-latency, and fault-tolerant systems
- Improve observability, automation, and operational excellence across the platform
- Support incident analysis, troubleshooting, and root cause remediation in production environments
- Optimize infrastructure usage and help drive efficiency and cost awareness across AWS-based environments
- Work on platform capabilities that enable safe growth in message volume, topic count, and cluster footprint
- Partner with other engineers and teams to evolve platform standards, tooling, and best practices
- Contribute to architectural discussions involving messaging, traffic patterns, service communication, and platform reliability
Requirements
- Strong software engineering fundamentals and experience working with distributed systems in production.
- Solid experience with Kubernetes, networking, and AWS in large-scale or business-critical environments.
- Experience operating infrastructure-heavy platforms with high reliability and availability requirements.
- Ability to troubleshoot complex production issues across application, infrastructure, and network layers.
- Experience improving observability, automation, and operational tooling.
- Good understanding of scalability, resilience, performance, and failure isolation patterns.
- Ability to work autonomously on ambiguous technical problems and drive them to execution.
- Strong collaboration skills and ability to work across team boundaries.
Skills
- Kubernetes
- Networking
- AWS
- Distributed systems
- Observability
- Automation
- Apache Kafka
- Messaging technologies
- Streaming technologies
- Platform engineering
- SRE
- Infrastructure-focused backend engineering
- Multi-account AWS environments
- High-throughput event-driven architectures
Location
- Remote
Work Type
- Hybrid
Experience Level
- Senior
Salary/Compensations
- CAD 156,000 - 184,000
Benefits
- Health Insurance
- Life Insurance
- Pension Plan
- Extended parental leave
- Nucleo - Our learning platform of courses
- NuLanguage - Our language learning program
- NuCare - Our mental health and wellness assistance program
- Vacations
About the Company
- Nu serves more than 140 million customers, guided by a mission to fight complexity and empower people.
- The company has been leading an industry transformation through innovative products and human-centered services.
- Proprietary technology and data at scale power Nu’s digital platform, built to promote financial access, advancement, and transparency.
- Its business model thrives on customer love and lower costs, feeding a flywheel of growth and profitability.
Equal Opportunity
- Our recruitment process may involve the use of artificial intelligence–enabled tools, such as automated interview transcription and analysis, to support the evaluation process. Artificial intelligence is not used to make final hiring decisions; all decisions are made by human reviewers.
- To maintain a consistent and fair process for every candidate, Nu does not provide individualized technical feedback. See how our policy works here